Since I build all boards by hand, there are times that production cannot keep up with the incoming orders. Orders are processed and shipped in chronological order.

First in - First out. You will get a shipping notification from the USPS with a tracking number when your order ships. The STM32 has an on-board microcomputer, so there is no need for a separate Arduino or other processor board. Two chains of low-pass filtering.

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An easy to solder DB-9 for connection to the host repeater. Includes mating connector and metalized hood.

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RSSI support built on-board. New 'clip' circuit to help with RX level adjustment. Combined with one of our custom cases, optional it makes for a nice, neat compact package. Maximum input voltage is 24V DC. Installation requires soldering. It does not like to have power on its output with no input. These cables are approximatley 36" long.

These cables are approximatley 18" long. While product documentation is continuously under development, the user manuals for these products will follow in the same lines as the rest of the RB products in being straight forward and thorough. I am in the process of assembling a fairly broad collection of connection diagrams for various repeaters and simplex radios. These will all be published on-line for folks to download, easily make the necessary connections to their radio, and configure their software to be on the air with the new digital modes easier than ever before.

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My hope is that these products help more people get started with the new and expanding digital modes and their advanced capabilities. We are NOT responsible for lost or stolen packages. We have no control over your package once it is placed in the USPS outgoing mail slot. For more information, Please contact Scott either via e-mail or by phone during reasonable hours EST. Duplex Cables: For use with repeaters.

Duplex Cables:.We have built and shipped over IDOM 2 3 and 4 units. Trust radiodan to deliver!

Arduino Nano GMRS Repeater Controller - How To..

Order at www. You MUST choose parameters and tell us!!

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The ID-O-Matic IV is a multipurpose, microcontroller based device intended primarily for repeaters, but with other uses as well. It can also be used for beacons, fox hunt transmitters, automatic station ID and many other uses. So what are the more interesting features? There's a programmable delay timer that announces your call sign or any other message, in Morse code at a speed and audio tone you choose.

Then there are the CW keying and PTT outputs so you can attach it to a transmitter, transceiver or repeater. And how about a new USB interface to connect to your shack computer, laptop or terminal for quick and easy configuration?

It's all there. Just type in your ID message. And now, with the optional add-on voice ID board -- record your own voice ID and use that instead of or in addition to Morse code! The built-in interface circuit and programmable signal polarity let you use either active-high or active-low input signals.

You can optionally have the ID-O-Matic send a courtesy beep or up to three Morse code characters at the end of each transmission, and you can specify a "hang time" to keep PTT active for a brief period after the input stops.

If you want the repeater to ID every so often when it's idle, there is a beacon timer and a separate message for that too.

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You can, for example, have the repeater ID with its call sign while being used, and a longer message every hour or two when it's idle. Or use Morse for the regular ID, and a voice announcement for the beacon. There's a PTT watchdog timer to keep your repeater from being "hung" by stuck mic buttons or long-winded users.

And, you can use the ALT MSG input to send a different ID message and even change the courtesy beep based on the state of an input signal - useful if, for example, your site switches to backup power, or if a link is active. Speed is variable from 5 to 40 words per minute, and the audio pitch for the CW ID and the courtesy beep is also programmable via the setup menu. The -IV boasts a smooth, nearly pure sine wave audio signal rather than the raspy square wave found in some ID circuits.

The on-board Morse ID is filtered and fed to a passive audio mixer with volume control. An input is provided for external audio from your receiver or other source; this input has a low noise audio amplifier IC with volume control and is mixed with the Morse audio. There is a de-emphasis filter on the external audio input that can be included or left off at build time, depending on your needs.

The controller can be upgraded with new firmware in minutes, without the need to return it for programming, swap chips or even remove it from the repeater although a few minutes of down time is required.

New features are planned for future release, giving you added capabilities at no added cost.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Amateur Radio Stack Exchange is a question and answer site for amateur radio enthusiasts. It only takes a minute to sign up.

I saw a couple YouTube videos last night about setting up a repeater using a pair of cheap hand-held radios and, at its simplest, an audio patch cable to connect the speaker output of one radio to the mic input on the other. Set frequencies correctly, turn VOX on, and what one HT receives will be retransmitted by the other -- potentially even cross-repeating between 2m and 70cm bands, or whatever bands your radios can use. There are potential issues with doing this on a non-emergency basis -- protecting the radios from weather, keeping their batteries charged, preventing someone from finding the setup and saying "Hey, free radios!

It's my understanding that periodic ID, at least when active, is legally required, but none of the other repeaters I've listened to seem to do this.

Announcing: TILT Repeater + Save up to $50

Since the cheap HT sets don't have this capability, I'm concerned about the legality of operating a repeater that doesn't identify itself. Just because another repeater doesn't that I've hearddoesn't mean it's legal to do things that way. Is there an inexpensive way to insert an ID generator between the receive and transmit HT units in this kind of setup? It would need to detect activity, wait some period of time, and then send an ID, as well as sending periodically if there's no activity.

Either voice or Morse is legal, but presuming this will be a digital playback system of some kind, either one is easy to set up. Are you up to buying a Raspberry Pi, two USB sound cards, some assorted transistors and such, and making your own interface cable?

If so, you can run svxlink. It supports all sorts of fancy things related to internet-linking, remote control, and automation, but you don't need to use any of that; it will also function just fine as a repeater controller for a standalone repeater, and periodic ID is one of the built-in features. Many repeaters are not based on radios with built-in ID or any other repeater functions, but rather an ordinary transmitter and receiver each possibly a transceiver used only for one function, if that's the most economical option connected by a repeater controller through which the audio, PTT, etc.

The repeater controller knows how to ID and to do so without interrupting usage of the repeatergenerates the "courtesy tone" at the end of repeated transmissions, and may have remotely-controllable special functions e. As I haven't built a repeater I can't recommend any specific examples, but I hope that you can find suitable products or project plans now that you know what to call them. You're not required to have an independent controller providing an ID. As long as you can ensure the repeater does not transmit without IDing.

You could ID the repeater yourself by just saying your callsign. When you ID the transmission on the input, the output provides identification as well. Repeater controllers provide several functions to a repeater system. One is ID. Part 97 no longer gives specific direction on how to accomplish automatic control. Alot of the things repeater controllers implement in terms of automatic control are leftovers from past revisions of Part It is generally accepted as a best practice to have an alternate means of turning off the system remotely.

This could easily be accomplished with a second receiver and a DTMF controller. Alternatively, if your repeater location has internet access, you could use a WiFi controlled outlet.

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About Open Repeater Project

The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered.This simple creation has put the power back into the hands of radio operators around the world allowing them to build and tinker with digital voice systems, breaking down the barrier of needing expensive commercial hardware.

homebrew repeater controller

The MMDVM is a hardware and software component that can interface radios to a computer, like a raspberry pi, turning normal analog radios into digital radios, much like a TNC for packet radio.

Instead, it uses cables to wire directly into the IO pins of the radio s you choose. After following this article you will be able to put together a multimode amateur digital repeater or high powered hotspot that can be connected to the internet for world wide digital communication.

How cool would that be! Baby steps though, lets just get this digital node built. The layout will look something similar to this, excluding the Arduino courtesy of f5uii. If you are looking for a tool for the shack, you will invariably find use for one. Open firewall ports : Opening ports may be optional depending on your network. However, if you notice other devices cant link inbound or features like callsign routing are not working, you many need to open ports.

Advertise it, so others can find it. Repeaterbook is a great start! The radios were in a trash pile destine to be destroyed. In a digital world, analog radios are being thrown to the side for many commercial 2-way companies. They have been revived and now serve the community helping hams learn about the world of digital radio. From top to bottom….

homebrew repeater controller

Search for: Search. A simplex node will use 1 radio A duplexed node will use 2 radios and will require a duplexer. A cooling fan will be an absolute must! Many people are using the Yaesu DR-1X repeater for duplexed operations must not be firmware updated, i. FR model, or the DR2. There is no single article or how-to page for making the cable. This is where your inner geek, and solder hands can come to play.

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Please help keep the finite airwaves clear of testing and un-needed traffic. Please use a dummy load during all your initial tests and any future tweaks you may need to do. Meaning, just key up your radio and it handles the rest.C controller. During the past several years I have been migrating my internet linking from EchoLink to Allstar. Allstar is an implementation of asterisk, an open source PBX that runs on Linux. The Linux platform can provide complete multiport repeater controller functionality, thereby eliminating the need for a controller board!

The most recent repeaters that I have built do not have hardware controller boards in them. I have built three with mini-ITX Celeron boards.

The results have been very good. Allstar has a range of codecs available depending on available BW. Linked and repeated audio is superb. If I can help with information, please feel free to contact me. I began using the ACID implementation; so, my comments here will be along those lines. All new builds that I do, use the latest release from allstarlink. Downloads can be found at the Allstarlink wiki page.

On that site you will find much information as well as the ability to register with Allstar. Once registered, you can request server and node authorization. You will also find acid-sysadmin helpful. A server is a PC platform running Allstar asterisk on the Linux operating system.

homebrew repeater controller

One or more nodes can be associated with each server. A node is a connection entity running on a server. Usually nodes are each connected to a radio or repeater; however, a node can be defined as a HUB node.

HUB nodes don't have radio hardware directly connected. Hardware nodes can be simplex, duplex, or voter types. In the second case, a network connection bridges the radio or repeater to server. The server PC can be in a different location. Alternatively, voter is used when radios are interfaced with an RTCM. Be aware that the the HamVoip code on that site isn't open source not in keeping with the Allstarlink culture and GNU GPL and some changes in those implementations are not supported by Allstarlink.

This is beyond unethical. The current ASL release is a product of that effort. A good vi editor reference: Basic vi Commands. AllstarLink provides hams with a means of connecting radios repeaters or simplex links over the internet. It is built upon the asterisk open source PBX runs on Linux.A repeater is a device that can easily "repeat" radio signals and extend the range of radios. Repeaters are normally hundreds of thousands of dollars and are huge towers.

Did you use this instructable in your classroom? Add a Teacher Note to share how you incorporated it into your lesson. Just be sure that you know where you are allowed to transmit.

First you're going to need a radio frequency. To program a frequency make sure that you are in frequency mode, as opposed to channel mode. Once you are in frequency mode you key in the number of the frequency through the keypad.

The frequency should be set. Make sure you pick a frequency that you are licensed on! VOX allows the user to transmit their voice through the radio without their hands. Make sure that your radios are on the same band this took up about a day to figure out. You also need to make sure that your repeater will not interfere with any electronics or other repeaters in your area.

Remember that you are the control operator of the repeater and any violations to "Part 97 of FCC rules and regulations" are your fault if they pass through your repeater.

Keep in mind that the two frequencies will have to be different in order for the repeater to work. Question 1 year ago on Step 2.

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Hi I followed every step to the letter but still when I switch on the TX repeater starts transmitting straight away, what am I doing wrong? Plus the walkie talkie being used for the transmitter will suffer extreme heat build up under use from a few users on the system. I have a baofeng uc5r and I keyed down for 1 minute and the the inside chassis was very hot. Use mobile radios with large heat sink and a fan for better dependability. A word of advice, don't use walkie talkies for repeaters.

They may work for temporary installations, but as a permanent use no way. I cant see how you could keep desense out of the receiver being next to the transmitter. Reply 2 years ago.

Remember never use a radio on a frequency that you are not licensed for. Add Teacher Note. For this Repeater you will need 2 Baofeng uv5r radios. You will also need a 2. Okay this is the heart of the project. It took me hours but it could take you minutes. Did you make this project?

Share it with us! I Made It!Read our Getting Started Guide to learn what you'll need and the basics to get your OpenRepeater controller up and running and on the air.

Part of what we feel is going to make the OpenRepeater Project great is community. Join the discussion in the forums and lend a helping hand. Stay in the loop, sign up for our mailing list and let us know how you might want to help. We promise we won't spam you. We hate spam too! If you are human, leave this field blank. YES, but I'm not that tech savvy, I want to help test it and offer feedback. YES, but I just want to make some suggestions. Since you want to get your hands dirty, tell me what some of your skills are that you can help contribute to this project.

Read our Getting Started Guide to find out how to get started and on the air. Join the Community. Getting Started. September 8, September 2, June 17, June 4, Call Sign. How do you want to help with this project?

Experience with SVXLink. Linux Knowledge. Circuit Design: Basic Knowledge. Repeater Configuration Experience. The repositories for this project will live on GitHub.

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