Call for details. Such a repeater listens to the entire sent message, then repeats the entire message on the same frequency. 985 simplex, NO PL Tone, 0. VHF provides a simplex communications system, which allows for line of sight communications between two ham radios. Mark has decided to retire so Micro-Node will no longer be providing new product sales. Nov 3, 2012 - The October 2012 Frankenstorm Sandy brought rain, hail, snow, and high winds to Western Pennsylvania. Digipeaters are just like normal voice repeaters in that when they hear traffic, they rebroadcast it with a little more antenna height and usually a little more power. It is programmed from the cloud: no need for programming and updating code plugs. The simplex records anything it hears and plays it back, hopefully from a more powerful transmitter using a much better antenna. 275 MHz simplex (on repeater offset) 446. 00 Repeater inputs and outputs (note overlap with preceeding ATV subband) 445. 1 as the 440 band simplex frequency. 000 KHz default offset for 2M), then the Transmit. But thats not radio. Show Outdated Listings. com is owned and operated by Sterling Tower Properties, LLC. 2750 - 5 = 443. TacticalRepeater. Ham radio is indeed a "hobby" and it is in fact called "amateur" radio -- but repeater users did not behave that way. At the time, I only had a FT-1900 radio and a couple hand-held radios; one of which was a Baofeng submini handheld. 04 5% Off | RPT-2K Two Way Relay Walkie Talkie Repeater Box For Two Handheld Radio Baofeng Wouxun Puxing K Port from Merchant Ham-radios Store. September 28, 2015 Rachel Cericola 11 Comments. Siemens Vsq5x1230 - $175. Thus, they increase the range of the original transmission. Repeaters operating on Channel 5/35 may be used for emergency communication only. 00 simplex) and a UHF frequency (let’s choose 446. The DSTAR only repeater remains unchanged on 438. All product and my Amateur Radio Toys hardware store The follow content I will show my project. FM repeater announcements, automatic and unattended. Repeaters are great for the new ham, but I prefer simplex operation (communicating directly without the aid of a repeater) with the FM modes. 5KHz 10, @IW6BFE MTR2000 add 22uF capacitor to TX, view the end part of this blog. 3 of which are listed as compatible radios. 1298341 >>1298288 >it's best to just jump in and make a dick of yourself? of course not. Depending upon supplier these antennas will be supplied with a right angle SMA adapter or have the right angle built into the antenna. 2 Meters: FREQ: OFS: ST: CITY: CALL: MODE: CODE IN OUT: STATUS: COUNTY: IRLP: ECHO: LINKS/COMMENTS: Last Update: 145. YAESU FT-90R Operation-Notes. This means that it is easy to set up and install a station in most areas, and many people even have a small ham radio station in their car. In my case, I live west of the urban sprawl so I need help being heard on 2 meters. Such a repeater listens to the entire sent message, then repeats the entire message on the same frequency. Was: Previous Price C $254. 43: 2,007: Mounting Handheld Radio and Phone on Truck Console. So they actually both represent half-duplex transmissions on CB but are used only used to differentiate between repeater usage and non-repeater usage. In common with many rigs of the age it suffers from a lack of CTCSS for repeater access, and it was designed for 25kHz channel spacing. 5 Repeater Outputs 12. The Baofeng radios (and almost all other newer ones) provide for three modes of operation. Electronic, 3 C #22 Str TC, PO Ins, OS, PVC Jkt, CM. Sainsonic Diy Rpt-2d Two-way Radio Repeater Box For Two Ham Transceivers Station Kenwood Tkr720 - $32. Repeaters, simplex, VHF, UHF, HF, as long as you have the privileges to operate on a frequency, you can pass messages there. That's a far cry from $150. At worst it blocks urgent communication during a disaster net or public service event. 2 Hz On the Cal Bears 2m calling frequency (Ch-4 on your radio): 146. (The other repeater took about 2 days to arrive from another company. item 4 Simplex Repeater Controller RT-SRC1+ for UV-5R UV5R H-777 Extend to 120 second - Simplex Repeater Controller RT-SRC1+ for UV-5R UV5R H-777 Extend to 120 second $56. Please practice hand-washing and social distancing, and check out our resources for adapting to these times. Being a technology geek for me doesn't stop at writing code or hacking gadgets, it extends to even communications and specifically RF (Radio Frequencies). The box is -for the time being- a metal cookie box with added lid insulation. National Simplex: 927. The repeater was built to work on the 4m band, in order to promote activity and provide testing facility (by providing. You need to purchase next components: - Raspberry PI3 - 8GB or 16GB Class10 MicroSD card - Arduino DUE - Shield for Arduino DUE, for example designed and assembled by ES1BIS. I was intending to take one of the repeater pair frequencies and have it work in "split" -- have the repeater rig listen on the 467 side and transmit on the 462. 850 MHz TX = 146. FM is the most popular mode primarily due to the wide availability of FM repeaters. The installation must be able to be done with Windows, but some sudden complications for the installation of the drivers, I propose you to compile and load the firmware from your Raspberry Pi. Call for details. This document will attempt to lead you, step by step through the process of putting a D-STAR repeater on the air from the acquisition of equipment to the implementation of the gateway software. My own personal repeater, sitting in the driveway! The thing is, our handhelds don’t go quite that far if one of us is indoors — and I was. It is a software defined radio: future modes are just an update away. This is a great way to get started using VHF simplex and repeater communications. Hotspot is Simplex, Repeater is Duplex. Show Outdated Listings. HAM Radio QRP Kit Forty-9er 3W CW Shortwave Radio Transmitter Receiver Telegraph DIY Radio Kit. Winterfest is Coming! February 15th — Mendon Ponds. 450 MHz Driven Element. Repeaters are normally hundreds of thousands of dollars and are huge towers. If power is not shown in the jumper settings for your radio, then consult your radio manual to see if it is available. net, ymail, and cs. Furthermore, most repeaters use a "tone" which is a separate signal send beside the carrier wave that says "this is the repeater I want to use. The feed on all Elk Antennas is from the front of the antenna. net is a Web site dedicated to ham radio (amateur radio). Can also be used to automatically announce club events or ARRL bulletins. When he keyed up his radio, it completely desensitized the receiver which lost the. Well I’ll go over the Ham Radio Basics: Simplex VS Repeaters and using a 2m / 70cm (440) Ham Radio. Partie logicielle - Firmware du HotSpot. 5mm [] Added on: 10/31/2008. Discuss models, modifications and other similar worldwide standards such as FRS and GMRS. New listing Retevis TR10 Simplex Repeater Controller DTMF for H777 Baofeng BF-UV5R Kenwood. Packet: RS0ISS-11 / RS0ISS-1. Repeater operation is permitted on the GMRS frequencies, though there is some ambiguity as to how exactly they should be configured for pure simplex operation. Also known as shift or offset. Within certain industries, the environment where the clocks are stationed can contain moisture, dust, debris, etc. We are located in the Owens Valley between the Eastern Sierra and White Mountains. In most communities, the local Ham radio operators own and maintain repeaters on the 2-meter band, which assists their communications by increasing the distance that they can communicate with each other while still maintaining the quality of an FM transmission. Since I wanted to use this antenna for FM simplex and repeaters it would need to be vertically polarized. For more information you may call 702-528-4700. It is programmed from the cloud: no need for programming and updating code plugs. Needs D-STAR radio. In addition to this information, please note the following radio configuration items: Admit Criteria: Please set this to “Always” In Call Criteria: Please set to “TXI” or “Always”. 32 simplex (the 2 meter transmit frequency) and 445. Here is his info: Call: KF6VAE Freq: 147. In addition to this information, please note the following radio configuration items: Admit Criteria: Please set this to “Always” In Call Criteria: Please set to “TXI” or “Always”. Simplex Repeater This simplex repeater records incoming transmission and retransmits on the same frequency. N4FSC Repeater - 145. 2020 popular baofeng uv5r, antenna hf, baofeng t1, anysecu radio trends in Cellphones & Telecommunications, Security & Protection, Consumer Electronics, Computer & Office with Duplex Repeater and baofeng uv5r, antenna hf, baofeng t1, anysecu radio. I am aware of a couple of permanent simplex 2 meter ham repeaters in Maine (one is operated by a GMRS repeater owner) as well as a few others out of state. Hopefully we can help with easy access to a lot of information. 5KHz 10, @IW6BFE MTR2000 add 22uF capacitor to TX, view the end part of this blog. nicely built board with gold plated through holes. Was: Previous Price C $254. Greetings and thanks for your interest in the OpenRepeater Project. If one of the systems is simplex, the repeater must have logic preventing transmitter keying in both directions at the same time. Enjoy Free Shipping Worldwide! Limited Time Sale Easy Return. The repeater was built to work on the 4m band, in order to promote activity and provide testing facility (by providing. In the next few weeks we will be commissioning our first multimode repeater. It requires a little patience to use, but it's far simpler and much cheaper to build, to the point where you could almost consider it disposable. Single Sideband on 2 Meters: The Other VHF Mode Most new hams get started on the ham bands using FM, with 2m and 70cm being the most popular bands. 50 KB; Solid-State Devices For 1 GHz. It’s also a great place to get assistance in an urgent situation. TX and RX frequencies must be different for this option to function. 00: Repeater inputs and outputs (local option) 445. At worst it blocks urgent communication during a disaster net or public service event. Hello DMR ham’s, my local DMR repeater is K0PRO in Pittsburg, Kansas 444. ini file (I've already prepared the configuration) Dependent libraries. Yes, you can operate simplex without a repeater on two-meters FM! And the audio usually sounds better than working through a machine. The Super J-Pole antenna for 430 - 450MHz was constructed and used for FM simplex and repeater operation at my previous residence in Melbourne, Victoria from 2002 - 2007 The Super J Pole antenna is a co-linear vertical consisting of a number of half wave length vertical elements separated with half-wave length stubs (Tuning stub) feed with a. How this circuit works The called signal from the telephone lines is entered through C1, R1 Come to the bridge diode circuit D1-D4, D5 is the positive voltage at 20V supply to pin 1 of IC1 that KA2411 or CS8205 as the Telephone Bell Replacement IC. So, take this extra step. Remember never use a radio on a fre. Show Outdated Listings. Most new hams get started on the ham bands using FM, with 2m and 70cm being the most popular bands. This term is normally used in the context of environments that frequently use repeaters. Another repeater-like option that works without a duplexer is a cross-band repeater. 3 RCNY Section 511-01 In-Building Auxiliary Radio. The photo to the right is an example of how the antenna may be supported with minimal holes or damage to the wall. Good to get the antenna at least 10 feet off the ground. Check out this free and very useful IM chat tool for the Icom D-STAR system. I also wanted good SWR at 146. Base antennas at each end will have a good chance of being in constant contact of a mobile driving between them. The advantages to this system are:. Then come back to see the Loud Ringer circuit for the Home Phone. An omni-directional antenna is almost always the best choice. Still, I’m sure some of you reading this understand the joy that comes with hitting that power switch and having everything finally work as you intended. DV repeaters are supported on some radios – it means digital voice. When programming, you may have to manually set repeater offset to 0. In this series of posts we take a look at building a Digital Mobile Radio (DMR) repeater for amateur radio use on the 70cm band (UHF). At the time, I only had a FT-1900 radio and a couple hand-held radios; one of which was a Baofeng submini handheld. National Simplex: 927. 480 Simplex 146. Even archrivals need to put each other in their logs to earn points. We believe that now is the time to make the transition. For repeater operation and to use some scripts, this must be Pin 4 – AUX2 Output This pin can be connected to any AUX source. It records and replays what it hears from the radio it is connected to. You need to purchase next components: - Raspberry PI3 - 8GB or 16GB Class10 MicroSD card - Arduino DUE - Shield for Arduino DUE, for example designed and assembled by ES1BIS. This is a short manual for setting up MMDVM hotspot or repeater using Kavkaz SD card image created by Igor UA6HJQ. A simplex repeater records incoming transmissions and retransmits them on the same frequency. 800+ Motorola DMR Motorola DMR TS/TGID Assignments: Timeslot 1:. We will use the RASON 146. These all use yahoo. Private Paich V is a multimode inierconneci that offers four user selectable modes 1. Use the drop down menu on radio/modem type and select MMDVM_HS_HAT…. 00 - $20ea 3. 770 MHz Time: 1800-2100 (Local) Location: Porter Mine, near the ridge line I was able to get into the Randsburg repeater from Balarat on a Cushcraft 3db gain mag mount. you should be able to package it up pretty small!. Micro-Node will continue to honor and support current customers and products that are under warranty. the GMRS repeater frequency you are licensed on and technician to do the modifications (or do it yourself). Product Description. The data represents the repeaters frequency, offset, CTCSS, PL and notes such as if it supports IRLP, Echolink, autopatch, etc. For long duration use, consider running low power and keep transmissions short to avoid damage to the transmitter. Siemens Vsq5x1230 Vacuum Cleaner 1200 W B Cylinder4. 2020 popular baofeng uv5r, antenna hf, baofeng t1, anysecu radio trends in Cellphones & Telecommunications, Security & Protection, Consumer Electronics, Computer & Office with Duplex Repeater and baofeng uv5r, antenna hf, baofeng t1, anysecu radio. Not buying any duplexers or cavities or anything. settings_input_antenna. 6, @DW4CHZ maxtrac motorola ,two radio are working good without any adjustment on board 7, @BI7JTA CDM1250 /CDM1550/GM338 need to do: 1) Re program radio follow user guide, 2) Change pi-star config TXInvert=0 8, @F4HES GM340 TXInvert=0 9, @DW7FCV ICOM ID-4100 DStar bandwidth to narrow 12. In most communities, the local Ham radio operators own and maintain repeaters on the 2-meter band, which assists their communications by increasing the distance that they can communicate with each other while still maintaining the quality of an FM transmission. Using a more powerful radio to break through the interference. 2750 - 5 = 443. Simplex repeater. This is similar to making a contact on the HF bands. Discover over 351 of our best selection of baofeng uv5r, antenna hf, baofeng t1, anysecu radio on AliExpress. It features exceptional voice recording quality and higher capacity than any other comparable device on the market. You can have your own private portable repeater within your neighborhood or when hunting, fishing, camping, hiking, caravanning on the road. You need to purchase next components: - Raspberry PI3 - 8GB or 16GB Class10 MicroSD card - Arduino DUE - Shield for Arduino DUE, for example designed and assembled by ES1BIS. and hitting hams close by on simplex. Home / Uncategorized / Elk Antennas 2M/440L5 Dual-Band Antenna. Channels 41 - 48 and 71 - 78 are also allocated to repeaters. VOX Simplex 3. Its very hard to have a decent conversation because of either repeater owners or users giving us quite a hard time. the raspberry pi repeater controller project goal is to develop a low cost low power but feature rich duplex repeater controller suitable for setting up a temporary or emergency repeater systems with radios that can be run on portable power. you could use two radios. Was: Previous Price C $254. We hang ours from some string thrown over a tree branch. item 4 Simplex Repeater Controller RT-SRC1+ for UV-5R UV5R H-777 Extend to 120 second - Simplex Repeater Controller RT-SRC1+ for UV-5R UV5R H-777 Extend to 120 second $56. Repeaters are excellent when they’re working, and when they’re not congested. This has the effect of doubling the time required to transmit a message, but while a traditional repeater typically costs thousands of dollars and might be semi-portable at best, a simplex repeater can be set up with a single handheld. QRadioLink can be used for interconnecting amateur radio repeaters and simplex radio nodes, in a fashion very similar to existing software packages like Echolink, IRLP, Svxlink and app_rpt. The other, more popular way, is using a Duplex Repeater. • ensure that the VX-7R is set to the repeater's downlink frequency (and not to the uplink/input), use EMG (HM/RV) button ; • check that the Yaesu is not configured for CTCSS tone encoding even in the RX mode, no TSQ (Tone Squelch); • do the same for the DCS decode system. 1 as TX the other as RX. This lead is active LOW Pin 6 – Ground (common to radio and power source). For better work to mobiles and repeaters, mount this dipole vertically. Such as mountains,tall buildings ect. In this video, the Argent ADS-SR1 Simplex Repeater is used with a handheld ham radio. 650, but do not enable its VOX feature. A cross-band repeater like the one described in the linked article could be placed up in a tree on an intervening hill, allowing two-way communication. We were founded in 1931, and incorporated in September of 1960. 000 KHz default offset for 2M), then the Transmit. An omni-directional antenna is almost always the best choice. Unlike a traditional duplex repeater that receives and transmits at the same time on two different frequencies, a simplex repeater first receives a voice message, stores it, and then retransmits it out. Contesting is unusual as a sport, in that the participants score by cooperating with one another. 02-08-2020 02:59 PM by charliemeyer007. It is connected to the gateway of the main repeater (KD0NJC) via a VPN and is running as module A. Installing MMDVM on an STM32F4 NUCLEO board and assembling an interface shield. New (4) Resources (70) Activities (48) Classes (1) Events (28) Field Day (12) Licensing Exams (3) Meetings (7) Mountains of Misery (4) Nets (7. The Wilderness Protocol is a suggestion that those outside of repeater range should monitor standard simplex channels at specific times in case others have Emergency or priority calls. The models listed below are covered by this manual. Compiling and MMDVM firmware loading The STM32F103 board will receive the firmware. It requires a little patience to use, but it's far simpler and much cheaper to build, to the point where you could almost consider it disposable. Each of these 2 metre repeaters are connected to a 70 cm transceiver, with the repeaters audios connected to their link transmitter, and the repeaters transmitters connected to their link receiver. More information will be posted shortly. All I'd have to do next is buy the simplex repeater which costs $80. Sep 10, 2014 - This Pin was discovered by Christi Evans. Currently, with over 500 active members, we are. Two port linking repeater controller design for amateur or professional use - usually a duplex repeater on port 1 and a simplex link or gateway on port 2. Normal 0 false false false EN-US X-NONE X-NONE DEAR VALUED CUSTOMERS: BEFORE BUYING THIS PRODUCT: Please check out the MONEY-SAVING TIP below. Greetings and thanks for your interest in the OpenRepeater Project. As for frequencies, 2-meters is not channelized, and you are are free to use any of the simplex frequencies (with Technician or higher class Amateur license) for simplex operation. Single Sideband on 2 Meters: The Other VHF Mode Most new hams get started on the ham bands using FM, with 2m and 70cm being the most popular bands. DMR is a very interesting mode, and many Amateurs are enjoying this mode and see it as the way forward, as many serious companies have invested heavily in the technology, and it’s growing and changing as users need, so it’s a far from extinct or dead-end mode, like some amateur only ones, so i think it’s a. It is connected to the gateway of the main repeater (KD0NJC) via a VPN and is running as module A. 00: National simplex. 1 simplex on the 440 band. Setup the other radio with the standard input of the repeater (with 147. Extends PeaterPyPer - A simplex repeater that parrots communication Completely rebuilt his design to remove -ux security headaches Software link of the two physical devices Station ID every 10 minutes from prerecorded wav Turns out the RasPy uses GPIO pins in an unexpected way… Always use the most recent software libraries. It's common in cement and steel structures to have poor reception areas such as basements, stairways, tunnels, parking garages or any isolated area where wireless signals do not penetrate. This is the most cost effective repeater solution using the repeater and only one handheld radio. This is not a requirement to use these repeaters. 6, @DW4CHZ maxtrac motorola ,two radio are working good without any adjustment on board 7, @BI7JTA CDM1250 /CDM1550/GM338 need to do: 1) Re program radio follow user guide, 2) Change pi-star config TXInvert=0 8, @F4HES GM340 TXInvert=0 9, @DW7FCV ICOM ID-4100 DStar bandwidth to narrow 12. Node MCU (IoT) available online store @ 250-350 INR 3. 9: 7,769: Beofang radios, or radios in general (1 2 3) Kymudder08. Repeater one and two are, for example, on 2 metres. Data that comes in one port will be forwarded to the other ports. 22 MB; Spectrum Monitor. It requires a little patience to use, but it's far simpler and much cheaper to build, to the point where you could almost consider it disposable. As a solution, Sapling is now offering a Clear Protective Clock Cover in order to…. VHF and UHF FM voice operation takes two forms: simplex and repeater. Honestly if SHTF, your local repeater would be the best way to organize a net. You will see that most repeaters are FM but a few are marked DV. As you can see, it is already full of tools and supplies. 97 Repeater Second Backup is the Salem 147. Wilson Yagi Antenna for 700/800/900 MHz Band. Compiling and MMDVM firmware loading The STM32F103 board will receive the firmware. On the 2 meter ham band these frequencies are 600 kHz apart. When a repeater is selected, frequency and mode is already in the radio, no programming! Simplex repeater mode. YAESU FT-60 CheatSheet. NHRC has been delivering state-of-the-art, powerful, yet inexpensive repeater controller solutions since 1997. The repeater was built to work on the 4m band, in order to promote activity and provide testing facility (by providing. Therefore, it is my responsibility, To help design. Repeater Feed Online; Amateur Radio Magazine Archives; How Does the J-Pole Work? AK4IS Visit to Antique Wireless Association Museum; 2019 Poll Results; Simplex Net Files and Information; Categories. ADS-SR1 Simplex Repeater The ADS-SR1 is a multi-function voice recorder device that connects to virtually any handheld, base, or mobile radio. I was intending to take one of the repeater pair frequencies and have it work in "split" -- have the repeater rig listen on the 467 side and transmit on the 462. DIY simplex repeater (beta) ski. Many amateur radio transceivers allow users to set up memory channels to store their favorite simplex frequencies or repeater information including frequency (such as repeater name, frequncy, offset, tones and more). In addition to this information, please note the following radio configuration items: Admit Criteria: Please set this to “Always” In Call Criteria: Please set to “TXI” or “Always”. Once the voting panel is properly connected and set up the repeater controller sees what it expects: receiver audio, COR and PL tone decode (if a non-carrier-squelch system). 35 KB; Solving the Enigma - A History of the Cryptanalytic Bombe. Packed with loads of RF power, this dual fan-cooled unit is perfect for amateur radio applications (2m, 1. It records and replays what it hears from the radio it is connected to. Once a outside antenna is mounted we will learn a lot about your location. SVR-1-MPP1 Simplex Repeater Maker for Motorola PRO Series Portables. The full duplex communicator design: A full duplex communication is a two way communication, in which both the parties are able to communicate simultaneously. 0A Frequency Stability:. It is programmed from the cloud: no need for programming and updating code plugs. 190 to the 5-19 machine. 674 results for radio repeater 10* 2Pin 2-Way Radio Repeater Relay Box for Two Transceivers Station DIY Kenwood. All product and my Amateur Radio Toys hardware store The follow content I will show my project. In order to listen and transmit at the same time, repeaters use two different frequencies. Unlike a voice repeater, though, APRS Digipeaters receive and send on the same frequency (144. This project hereby presented is a complete HAM radio simplex 'smart' repeater, built around a Motorola GM-350/950, Arduino NANO board and a WINBOND audio recording integrated circuit. Free shipping. You might be better served assisting/assuring your local club's repeater is on solar/wind. It is a software defined radio: future modes are just an update away. When joining HamRadioForum you will get a confirmation email which you need to respond to. çj a transceiver. Fldigi: Freeware Linux, Free-BSD, OS X, Windows XP/Vista/7/8/10. Simplex Repeater: A radio that has a digital audio store-and-forward relay system. Telephone repeater circuit project. All product and my Amateur Radio Toys hardware store The follow content I will show my project. get a mobile flat-pack duplexer that will do a 2-3 mhz split and use say 15-20 watts or even less. When programming, you may have to manually set repeater offset to 0. It is employed advanced digital voice recording and processing technology to record the Push-To-Talk voice message unto 120 seconds and retransmit on a same. Base to base should cover the range and then some. The J-Pole antenna is a 1/2 wave antenna with a 1/4 wave matching stub. There are store-and-repeat repeaters available for simplex, FM analog voice use. Midian's SVR-1-MPP1 is a simplex store and forward repeater maker that plugs into the Motorola Professional series portable radios. I decided to get my ham ticket in 2014 and I discovered how many inactive repeaters are in the area, 30 in a 25 mile radius with about 3 that get any activity at all… mostly 2m , lots of 440 repeaters dead 24-7 so I decided to ditch the dual band radio in favor of a 2m only rig, Ive moved over to HF radio which is more interesting, more. HAMsmithing - Simplex Repeater in-a-box. - DIY USB cable for RTL-SDR which has two high-perm toroids installed as common-mode chokes to attenuate RF noise generated by laptop (one at each end). Small Plastic Case (For Enclosure) 2. 6, @DW4CHZ maxtrac motorola ,two radio are working good without any adjustment on board 7, @BI7JTA CDM1250 /CDM1550/GM338 need to do: 1) Re program radio follow user guide, 2) Change pi-star config TXInvert=0 8, @F4HES GM340 TXInvert=0 9, @DW7FCV ICOM ID-4100 DStar bandwidth to narrow 12. Technical specifications: Recording time: 180 sec. I also wanted good SWR at 146. 99mhz (VHF) 400-520. 5-110 MHz, don't let that scare you. The Simplex Repeater Controller Principle The Surecom SR-112 Simplex Repeater Controller is a device that allows you to setup a "field" or "emergency" simplex repeater. OpenRepeater. Extends PeaterPyPer - A simplex repeater that parrots communication Completely rebuilt his design to remove -ux security headaches Software link of the two physical devices Station ID every 10 minutes from prerecorded wav Turns out the RasPy uses GPIO pins in an unexpected way… Always use the most recent software libraries. So what the…. This is the most cost effective repeater solution using the repeater and only one handheld radio. Simplex 8743-581. Our flagship model, The Two Meter J-Pole Antenna comes in two different configurations, either as a one piece antenna for base station use, or as a two piece breakaway model great for portable operations. Read honest and unbiased product reviews from our users. WaveRP is an Arduino library for recording and playing Wave files with the Adafruit Wave Shield. Usb cable (For power up the node mcu) 6. 00 out of 5 based on 3 customer ratings. 650, but do not enable its VOX feature. After the online resources to mount its full duplex MMDVM digital repeater based on Arduino and Nucleo STM32F4, here is the time to explain how to set up a “homemade” access point (Hotspot) MMDVM based on a few simple elements:. BDAs are amplifiers/repeaters available in a variety of gain and power options that boost and distribute a signal covering various frequencies. 9: 7,769: Beofang radios, or radios in general (1 2 3) Kymudder08. Packet: RS0ISS-11 / RS0ISS-1. The UHF ham radio bands are very convenient to use. DSTAR P25, C4FM and DMR are supported on this new setup. If one of the systems is simplex, the repeater must have logic preventing transmitter keying in both directions at the same time. D*Chat - d*Chat is a Windows based keyboard to keyboard communication application that uses the D-STAR “DV” data capability. Basically, hotspots are your own. DMR DumpTAData select on. EchoStation is perfect for portable and emergency use, or for clubs wishing to use a PC instead of specialized hardware to control a repeater. I also wanted good SWR at 146. One, in PA, is used for ARES for voice and digital. net is a Web site dedicated to ham radio (amateur radio). Knowledgeable succeeded solar power diy Give a gift Davis Long Range Repeater w/Solar Power See. 985 simplex, NO PL Tone, 0. (HOT PROMO) US $18. Unlike a voice repeater, though, APRS Digipeaters receive and send on the same frequency (144. LT-725UV dual band mobile radio. on the Raspberry Pi 2/3/4. 2) Takes a signal received on a gateway repeater and sends it via internet to the hotspot TX which transmits a simplex D-STAR signal Allows a local, limited range, inexpensive, DIY extension to a D-STAR gateway system by a simplex hot spot or a full non-Icom repeater. Jumbospot DMR Hotspot So, it looks like DMR is really making the rounds and I found myself interested. It features exceptional voice recording quality and higher capacity than any other comparable device on the market. Welcome to Repeaterbook. 5-110 MHz, don't let that scare you. Asterisk Allstar. Optional : Nuisance Ham DTMF encoder - decoder system. Motorola Model RX TX Notes CDM750 / 1250 / 1550LS Excellent TX & RX on all modes CM140 / 160 / 340 EM200(CM140) Very low BER at Rx (SV4QXF) Tx works (SQ6POG). RADIOGRAMS may be passed via any means available to an Amateur Radio Operator. One of the problems I found out rather quickly with the simplex node is that if you start playing back something like Amateur Radio News on a simplex node by using a DTMF command over the air, it's very easy to lock yourself out of the system, since the node transmits until the audio stops (20-25 minutes or so). You may use: Phone (Voice) anywhere it is legal for you to operate. You need to purchase next components: - Raspberry PI3 - 8GB or 16GB Class10 MicroSD card - Arduino DUE - Shield for Arduino DUE, for example designed and assembled by ES1BIS. Tacticalrepeater. Partie logicielle - Firmware du HotSpot. In other words it is -and as we call it locally- a Parrot. We hang ours from some string thrown over a tree branch. You can DIY a Slim Jim antenna tuned to the transmit frequency of the PX-UV973 or if you don't want to DIY your own antenna they can be found on ebay. 5 Repeater Outputs Digital Voice Repeater Outputs SNI/Test Pairs -25 MHz Offset. I've used older Arudino Mega1280 cause it was in my spare parts; To upload to Mega2560 just uncomment it in platformio. It's common in cement and steel structures to have poor reception areas such as basements, stairways, tunnels, parking garages or any isolated area where wireless signals do not penetrate. 5 KHz spacing for Repeater Inputs -25 MHz Offset 927. ( In STOCK and more on the way ) This option adds 2 short dual band antennas. The RT-SRC2 Simplex Repeater Controller Module is an easy of installation, low cost and high performance controller for amateur radio enthusiasts to build a simplex radio repeater system. Discover (and save!) your own Pins on Pinterest. 625mhz Duplex Band Width: 1MHZ OR +/-500KHZ Modulation Type: FM 16F3 Operating Voltage: 12-14V standby Current: 0. The CommBridge provides an RS232, Xbee RF device socket RS485 bridging. Antennas are small and amateur radio equipment for the UHF bands is compact and widely available. This indicates a velocity factor of about. 7 MHz and 2nd IF normally at 455 kHz. NOTE: If the primary repeater is down try other and if no repeater use simplex at 147. Around the world, where the 1. TR10 Simplex Repeater Controller for Ham Radio Relay Box DIY Two Handheld Radio Relay Station Kenwood 2Pin Long Distance Communication 25W UHF 6 Cavity. FM repeater announcements, automatic and unattended. 9: 7,769: Beofang radios, or radios in general (1 2 3) Kymudder08. Having a simplex repeater allows these walkie talkies range to be extended over a greater area. 48 (no PL) SIMPLEX and be prepared to relay reports between each other. Free Simplex Repeater Controller RT-SRC1 for UV-5R UV5R Extend your radio range much. YAESU FT-60R Quick Reference Card: The W5JCK Edition. Honestly, I purchased another simplex repeater while waiting forever, and I mean it was about a month of waiting for this device to come from Hong Kong. You can help keep RepeaterBook alive by offering a small donation through PayPal, a secure way to donate. Antennas are small and amateur radio equipment for the UHF bands is compact and widely available. This Getting Started Guide is a collection of our Knowledge Base Articles intended to help you get the software portion of the project up and running quickly. 450 MHz Driven Element. A simplex autopatch operates very much like a repeater autopatch, except the station it is attached to is not a repeater. by Garrett Dow, KD6KPC/WREQ745. SR-112 Radio record simplex repeater Controller The SR-112 is a multi-function voice recorder device that connects to virtually any handheld, base, or mobile radio. 12 Simple, Stand-Alone DIY Home Security Cameras Get a peek at 12 DIY home security cameras that work in conjunction with the web and smart phones. com announces NEW digital Repeaters in P25 and DMR formats. 00: Shared by auxiliary and control links, repeaters and simplex (local option) 446. 25 MHz FM Repeater Site 442. The reason I don’t recommend you naming the ham repeaters is that when most hams refer to a repeater, they won’t use the call letters they use the freq. Yes, you can operate simplex without a repeater on two-meters FM! And the audio usually sounds better than working through a machine. The J-Pole makes a great base station and emcomm emergency communications amateur radio and scanner antenna. ARDUINO Simplex HAM Repeater Controller. 00 simplex). Simplex repeater. Of those 3 portables, 1 was free and the other 2 were $30 at a hamfest. Also known as shift or offset. Be sure to set its "SFT-D" to OFF as well, for simplex opera-tion. Allow Talkaround: this allows the radio to operate simplex mode when a repeater is not available or out-of-range. Siemens Vsq5x1230 - $175. You only need a radio, the $100 repeater box and an antenna - no second radio or duplexer. QRadioLink can be used for interconnecting amateur radio repeaters and simplex radio nodes, in a fashion very similar to existing software packages like Echolink, IRLP, Svxlink and app_rpt. (Ham Radio Crash Course 01/29/2020) The Rochester Amateur Radio Association, Inc. Rig A is set to 147. It's common in cement and steel structures to have poor reception areas such as basements, stairways, tunnels, parking garages or any isolated area where wireless signals do not penetrate. There are two basic ways to communicate using your new radio. Duplex=0 # Is this station Simplex or Duplex. It's also a great place to get assistance in an urgent situation. 7375MHz -600KHz has now been kitted out with a MMDVM modem and a Pi-Star image. The DSTAR only repeater remains unchanged on 438. This is similar to making a contact on the HF bands. Installing a good external antenna will give you the fange you need to keep everyone in. 1 as TX the other as RX. Around the world, where the 1. You may have to register before you can post: click the register link above to proceed. __ Designed by Radio Amateur Society of Norwich. EchoStation is perfect for portable and emergency use, or for clubs wishing to use a PC instead of specialized hardware to control a repeater. Baofeng UV5R Repeater: A repeater is a device that can easily "repeat" radio signals and extend the range of radios. Fldigi: Freeware Linux, Free-BSD, OS X, Windows XP/Vista/7/8/10. It's also a great place to get assistance in an urgent situation. and hitting hams close by on simplex. I no longer recommend the EFJ board because it is too hard to get TOS. NHRC has been delivering state-of-the-art, powerful, yet inexpensive repeater controller solutions since 1997. Mark Kyle VK4KZK has been busy building a new 2m repeater for the Maleny site. com with top-selling baofeng uv5r. DIY, continued Setting up a cross-band repeater Next, turn on the other HT, which we'll call the re-ceiver, and set it to VFO mode, then set its upper dis-play to 447. The feed point impedance of a delta loop will range from 70 ohms to 100 ohms so I would need to adjust for that matching to 50 ohms for the radio. Simplex repeater. Auxiliary/repeater links: 435. It’s also a great place to get assistance in an urgent situation. Programming data entered on the B Display (lower display) will not be saved. I no longer recommend the EFJ board because it is too hard to get TOS. Direct Mode (simplex), Repeater Mode (duplex), Trunk Mode. This has the effect of doubling the time required to transmit a message, but while a traditional repeater typically costs thousands of dollars and might be semi-portable at best, a simplex repeater can be set up with a single handheld radio and. including major 328 Repeater Controller brands. I also have a simplex hot spot running here in my shack also running the same software. DV4mobile – first all mode digital tri band transceiver plus LTE with GPS. I have owned a GP-15 for almost 9 years, and it has performed wonderfully without any issues. Power supply for Raspberry Pi (Amazon) $8. net as well as custom domains using Yahoo. SR-112 Simplex Repeater Controller Cross Band Radio Duplex Repeater Controller For Mobile and Ham Radio Walkie Talkie. This has the effect of doubling the time required to transmit a message, but while a traditional repeater typically costs thousands of dollars and might be semi-portable at best, a simplex repeater can be set up with a single handheld radio and operated from batteries. 940- with a 103. For example, a fire department in Colorado was on a 46 MHz channel while a police department was on a 154 MHz channel, they built a cross-band repeater to allow communication between the two agencies. On repeater WA6HAM (Ch-22 on your radio): 145. Cigarette lighter socket chargers. Use that, and rig up some sort of solar power charging system so you can park the whole kit atop a parking garage or tall office building. THE GREATER LOS ANGELES EMERGENCY SIMPLEX NET. This indicates a velocity factor of about. That means we should set our channel RX to 448. Portable to Portable or Mobile to Mobile. Coordinators; Zone Map; Forms; Waiting List Q&A; Waiting List; Texas Band Plans; Documents. Free shipping. Then come back to see the Loud Ringer circuit for the Home Phone. OpenRepeater. IRLP Users Notice Please read! Due to constant bouncing of Yahoo. This example has a repeater, controller and a gateway (this was a potable networkable single site solution for public safety) in a 6u rolling rack chassis we, BridgeCom Systems made. AllStarLink runs on a dedicated computer (including the Rasperry Pi) that you host at your home, radio site or computer center. Unlike a voice repeater, though, APRS Digipeaters receive and send on the same frequency (144. The TK-860 is able to work the duplex channels of GMRS, as well as the simplex channels of FRS. Motorola Model RX TX Notes CDM750 / 1250 / 1550LS Excellent TX & RX on all modes CM140 / 160 / 340 EM200(CM140) Very low BER at Rx (SV4QXF) Tx works (SQ6POG). 275 MHz simplex frequency was determined by checking the USA 70 Centimeter band plan. My ham partner lives about 10 miles away and with the power all the way down we talked thru the repeater and simplex on 6 meters. Other features of the ID-1 include key-up delay, hang time, and time-out timer. Some standalones are operating in dual-mode (analog/digital). VHF and UHF FM voice operation takes two forms: simplex and repeater. Honestly if SHTF, your local repeater would be the best way to organize a net. Please practice hand-washing and social distancing, and check out our resources for adapting to these times. The Super J-Pole antenna for 430 - 450MHz was constructed and used for FM simplex and repeater operation at my previous residence in Melbourne, Victoria from 2002 - 2007 The Super J Pole antenna is a co-linear vertical consisting of a number of half wave length vertical elements separated with half-wave length stubs (Tuning stub) feed with a. For example, I may have an SWR measurement of 1. It is based on the open source Asterisk PBX running our app_rpt. This is frowned upon in the Amateur community as it can interfere with repeater operations. The CommBridge provides an RS232, Xbee RF device socket RS485 bridging. The simple diagram below is a simplex (one way at a time) link between two repeaters. In other words it is -and as we call it locally- a Parrot. For this category, wireless is defined from the transmitter (push button) to the receiver. It is employed advanced digital voice recording and processing technology to record the received signal (up to 120 seconds), and retransmit it on a same frequency channel. com announces NEW digital Repeaters in P25 and DMR formats. If the repeater’s Offset Shift direction is – then the repeater’s Offset is subtracted from its Output frequency. The commercial 2-way world calls Simplex operation 'Talk Around" because you are talking around the repeater, not through it. OpenRepeater. Several band plans exist for this band, and they vary by region. My own personal repeater, sitting in the driveway! The thing is, our handhelds don’t go quite that far if one of us is indoors — and I was. ADS-SR1 Simplex Repeater The ADS-SR1 is a multi-function voice recorder device that connects to virtually any handheld, base, or mobile radio. The simplex repeater includes the correct cord I'd need. Weak-signal enthusiasts will enjoy using these high quality beams with superior specs for SSB, CW, digital and satellite. 490- MHz, PL 107. DIY simplex repeater (beta) Communications. BDAs are amplifiers/repeaters available in a variety of gain and power options that boost and distribute a signal covering various frequencies. It features exceptional voice recording quality and higher capacity than any other comparable device on the market. The main use for colour codes is for where two repeater coverage areas on the same frequency may overlap, different colour codes are used to ensure each radio accesses the correct repeater. When joining HamRadioForum you will get a confirmation email which you need to respond to. Power supply for Raspberry Pi (Amazon) $8. It is just a Baofeng handheld connected to a Surecomm simplex repeater device and a DIY Li-ion battery pack. 985 simplex, NO PL Tone, 0. REPEATER CONTROLLER CABLE Motorola R1225 GR1225 ZR310 ZR340 i20R i750R HKN9234 - $45. So it must be well located on the mountain top. One of the problems I found out rather quickly with the simplex node is that if you start playing back something like Amateur Radio News on a simplex node by using a DTMF command over the air, it's very easy to lock yourself out of the system, since the node transmits until the audio stops (20-25 minutes or so). Programming Repeater with Standard Offset RX = 146. I’m also on 10 metres 29. Combined with a program called Echostation, you can use your Rigblaster as an interface between a computer and one or two radios to make a simplex repeater, a full duplex repeater, a repeater announcement system or a simplex autopatch. Proper licensing and identification is required when using and testing in this configuration. 22 MB; Spectrum Monitor. Portable radio repeaters custom built for Business, Government, Ham, GMRS, SAR, SWAT and Paramilitary. Jan 2, 2019 - ADS-SR1 Simplex Repeater, Argent Data Systems Stay safe and healthy. MMDVM Simplex ( New and Improved )a great little performer. Save on Y Repeaters, we've got big range of Y Repeaters to settle on from, Y Repeaters available on Ebay. DV4mini is not receiving a signal or transmitting a signal. It records and replays what it hears from the radio it is connected to. The repeater must be within the range of the transmitting node, only then the repeater may be able to re-broadcast the signal to multiple nodes. English why the formula was thinking with his bread machine on dough blood. The simplex repeater includes the correct cord I'd need. The other, more popular way, is using a Duplex Repeater. This can be the case in manufacturing plants, indoor swimming pools, carpentry workshops and any other facilities where foreign objects may affect the clock’s functionality. When you and your buddy are out of radio range, this MFJ Simplex Pocket Repeater greatly extends your range. The feed point impedance of a delta loop will range from 70 ohms to 100 ohms so I would need to adjust for that matching to 50 ohms for the radio. 81 compared to a normal 5/4 wave 146 Mhz antenna. Here's a simplex repeater. At the time, I only had a FT-1900 radio and a couple hand-held radios; one of which was a Baofeng submini handheld. 2 Meters: FREQ: OFS: ST: CITY: CALL: MODE: CODE IN OUT: STATUS: COUNTY: IRLP: ECHO: LINKS/COMMENTS: Last Update: 145. Home / Uncategorized / Elk Antennas 2M/440L5 Dual-Band Antenna. There are store-and-repeat repeaters available for simplex, FM analog voice use. To run EchoStation as an announcement machine, simplex repeater, or simplex autopatch, a single VHF or UHF FM transceiver is all that is required. For more information you may call 702-528-4700. EchoStation is perfect for portable and emergency use, or for clubs wishing to use a PC instead of specialized hardware to control a repeater. GMRS radios are gaining in popularity daily; inexpensive and effective, these radios are redefining how families keep in touch. Essentially, the MC3362 is a complete FM receiver on a chip excluding the parts that must be off chip due to their nature (transformers, crystals) or to allow design flexibility. This Getting Started Guide is a collection of our Knowledge Base Articles intended to help you get the software portion of the project up and running quickly. That means we should set our channel RX to 448. There are 2 types of scratch pad memories, those for simplex operation, L1–L5, and those for duplex (repeater) operation, R1–R5. Regular price $2 16 $2. HF/VHF/UHF Simplex. Rig A is set to 147. Directional antennas can be useful in some specific situations, such as when you are far from a particular repeater. The Simplex Repeater Controller Principle. Since all 2-Meter repeaters fall in the 144-148MHz range, it’s easy to shorten something like 145. We were founded in 1931, and incorporated in September of 1960. I also wanted good SWR at 146. (all models) Digital voice over SSB bandwidth on HF (all models) Transmit Speech Processing: EQ and Compression (RIGblaster Pro). The Indiana Repeater Council is pleased to roll out our online coordination system. 1 as TX the other as RX. com is owned and operated by Sterling Tower Properties, LLC. item 4 Simplex Repeater Controller RT-SRC1+ for UV-5R UV5R H-777 Extend to 120 second - Simplex Repeater Controller RT-SRC1+ for UV-5R UV5R H-777 Extend to 120 second $56. 6m FM Primary Calling. In the next few weeks we will be commissioning our first multimode repeater. 1mm: DC 5V ~ 24V Standby time: 180 hours. I also wanted good SWR at 146. Baofeng UV5R Repeater: A repeater is a device that can easily "repeat" radio signals and extend the range of radios. In order to listen and transmit at the same time, repeaters use two different frequencies. Produces results similar to that of a conventional repeater. A simplex repeater is also known as a store-and-forward voice repeater. Radio connection unit: 1 3. 420 Simplex 146. One, in PA, is used for ARES for voice and digital. Don’t be intimidated by the rapid-fire action that occurs during ham radio contests. One of the problems I found out rather quickly with the simplex node is that if you start playing back something like Amateur Radio News on a simplex node by using a DTMF command over the air, it's very easy to lock yourself out of the system, since the node transmits until the audio stops (20-25 minutes or so). DSTAR P25, C4FM and DMR are supported on this new setup. For this reason we are hoping in the future to have mobile repeaters that we can move, as needed, to an area which will provide the best communications to the served agencies. Repeaters are generally made from expensive professional grade radio equipment, however ZR6AIC has been experimenting with. Once a outside antenna is mounted we will learn a lot about your location. They wanted their 1 watt walkie-talkies to work anywhere it seems within a 30-mile radius or so. As I have said the build is not 100& finished, while it is already functional. Smart Home DiY: Redit Home Automation: Tasmota: ESP Home: This Smart House: BRUH Automation: Juan M Tech: Smart Home Solver: Digiblur: Ham Radio Links. For instance; FRS channel 1 has become the defacto "FRS calling frequency", and is heavily utilized - bad choice! Certain MURS frequencies will have existing business users, even in suburban areas - these are also bad choices!. Most new hams get started on the ham bands using FM, with 2m and 70cm being the most popular bands. DIY simplex repeater (beta) ski. Winterfest is Coming! February 15th — Mendon Ponds. Posted in Hackaday Columns, Original Art, Radio Hacks, Slider Tagged amateur radio, duplexer, handy talkie, network, repeater, simplex, The $50 Ham, traffic Ancient Radio Repair July 6, 2012 by. SURECOM SR-112 simplex repeater Controller. 87 KB; Small Loop Antennas. Straight, with 2. The J-Pole makes a great base station and emcomm emergency communications amateur radio and scanner antenna. RT4 4G LTE Android 6. ini file (I've already prepared the configuration) Dependent libraries. I no longer recommend the EFJ board because it is too hard to get TOS. item 4 Simplex Repeater Controller RT-SRC1+ for UV-5R UV5R H-777 Extend to 120 second - Simplex Repeater Controller RT-SRC1+ for UV-5R UV5R H-777 Extend to 120 second $56. 250-MHz video carrier frequency and repeater links: 442. 2750 MHz and the Repeater Receiving frequency is 448. For better work to mobiles and repeaters, mount this dipole vertically. The simplex repeater includes the correct cord I'd need. Digipeaters are just like normal voice repeaters in that when they hear traffic, they rebroadcast it with a little more antenna height and usually a little more power. Discover (and save!) your own Pins on Pinterest. Packed with loads of RF power, this dual fan-cooled unit is perfect for amateur radio applications (2m, 1. Discover over 351 of our best selection of baofeng uv5r, antenna hf, baofeng t1, anysecu radio on AliExpress. Time zone and dashboard language. willjr75 said:. Build a Portable Universal Radio Programmer. UHF BACKPACK OF REPEATER TC-BTX888 TC-BTX888 - HYS Products Made In China, China Manufacturer. Being a technology geek for me doesn't stop at writing code or hacking gadgets, it extends to even communications and specifically RF (Radio Frequencies). Programming memory channels using the radio’s keypad can often be incredibly cumbersome and time consuming. Motorola Model RX TX Notes CDM750 / 1250 / 1550LS Excellent TX & RX on all modes CM140 / 160 / 340 EM200(CM140) Very low BER at Rx (SV4QXF) Tx works (SQ6POG). The VARC digi operates as W4VLD-1. Winterfest is Coming! February 15th — Mendon Ponds. A common name is a "parrot" repeater. ELECTRONIC PARROT. 5 out of 5 stars 238. Now that it's been a few months, I've settled in and started busting out the Kicad skills and lab tools to get the wheels turning on a new and exciting long-term project here in the shack. get a mobile flat-pack duplexer that will do a 2-3 mhz split and use say 15-20 watts or even less. New listing Retevis TR10 Simplex Repeater Controller DTMF for H777 Baofeng BF-UV5R Kenwood. Many of our repeaters have time slot 1 linked to the national and international networks and use time slot 2 for local and regional communications. RT4 4G LTE Android 6. With Tier 2 DMR, repeaters are used in a TDMA. I've used older Arudino Mega1280 cause it was in my spare parts; To upload to Mega2560 just uncomment it in platformio. VFD 300% Gnd, 3C+G #16 Str TC, XLPE Ins+PVC Gnd, OS+TC Brd w/#16 TC Drain, Blk TPE Jkt, 600V TC-ER 90C Dry/Wet 1000V Flexible Motor Supply Cable. A cross-band repeater like the one described in the linked article could be placed up in a tree on an intervening hill, allowing two-way communication. The WIN System is an OPEN Repeater system. 00 Amateur Television (ATV) 442. By changing the first IF filter width according to the operating mode, the desired signal is protected from adjacent inband signals at the later stages. Since I wanted to monitor 2 meter repeater and simplex frequencies, I chose my target frequency to be 146. 25m, and 70cm). When a repeater is selected, frequency and mode is already in the radio, no programming! Simplex repeater mode. The installation must be able to be done with Windows, but some sudden complications for the installation of the drivers, I propose you to compile and load the firmware from your Raspberry Pi. A simplex repeater records incoming transmissions and retransmits them on the same frequency. The TK-860 is able to work the duplex channels of GMRS, as well as the simplex channels of FRS. Simple DIY Vertical axis wind turbine Project Owner Contributor Simple VAWT wind power generator 1. POWER - The SignaLink SL-1 and SL-1+ can usually be powered by the Accessory Voltage found on the Mic and Accessory Port connectors of most radios. The models listed below are covered by this manual. After purchasing the Dual MMDVM Board and having excellent results using it both as a dual band repeater on 2M and 70CM I turned my attention to the New N5BOC MMDVM Simplex board which came with the Ceramic Antenna fitted. 5 L Black Hepa. Enjoy Free Shipping Worldwide! Limited Time Sale Easy Return.