OUTSTANDING work. I also built a repeater out of those radios. The only downside with them is the lack of CW identifier. I bypassed the issue with a raspberry pi pico clone and a uv5g. I put in the request with your group. I wrote up my whole build on the budgeting side. I wouldn't mind sharing if you would have it. Stay well friend.
Don't have to do the reverse frequency if you program your own repeater channel in yourself where it is correct on the receive and transmit frequencies which I added in reverse already.
Have you been able to find a COS and PPT so this can run as a standard receiver and transmitter out of repeater mode and interface with a PI? It can be done by rf but direct connection is better. Another question is does it have a TOT? And does it get hot are the heat sinks large enough?
We cancelled our project. These radios were not suited very well for repeater. There is no cos. Also you can not put audio into the mic connection. The audio in to the radio is a digital signal. All the audio is converted inside the microphone then sent to the radio in digital mode via the mic jack. The connection cable (tip, ring, ring) to make them a repeater is not audio and ptt. again it uses some from of digital information. In testing the radios, after about 40 seconds of transmission, the power started dropping fast and to the point where they stopped transmitting. You are better off using a conventionals radios where you can pull off cos and also have ptt and audio input. You can not easily find any where to connect an IDer since all is digital. You could problaby connect an IDer in to the front of the mic.
is your duplexer tuned to the two exact frequencies? also it is easy to make a mistake and not match the correct port to the correct tx or rec connections. when you say distance, i guess you are talking about range. you have to have height. if your trying to operate at 20-30 ft in antenna height you wont get but a couple miles. not worth doing it. also found that these radios are not very sensitive.
OUTSTANDING work. I also built a repeater out of those radios. The only downside with them is the lack of CW identifier. I bypassed the issue with a raspberry pi pico clone and a uv5g. I put in the request with your group. I wrote up my whole build on the budgeting side. I wouldn't mind sharing if you would have it. Stay well friend.
Don't have to do the reverse frequency if you program your own repeater channel in yourself where it is correct on the receive and transmit frequencies which I added in reverse already.
Have you been able to find a COS and PPT so this can run as a standard receiver and transmitter out of repeater mode and interface with a PI? It can be done by rf but direct connection is better. Another question is does it have a TOT? And does it get hot are the heat sinks large enough?
We cancelled our project. These radios were not suited very well for repeater. There is no cos. Also you can not put audio into the mic connection. The audio in to the radio is a digital signal. All the audio is converted inside the microphone then sent to the radio in digital mode via the mic jack. The connection cable (tip, ring, ring) to make them a repeater is not audio and ptt. again it uses some from of digital information. In testing the radios, after about 40 seconds of transmission, the power started dropping fast and to the point where they stopped transmitting. You are better off using a conventionals radios where you can pull off cos and also have ptt and audio input. You can not easily find any where to connect an IDer since all is digital. You could problaby connect an IDer in to the front of the mic.
Hello did you ever get this working properly with the duplexer I have had no luck with any distance
is your duplexer tuned to the two exact frequencies? also it is easy to make a mistake and not match the correct port to the correct tx or rec connections. when you say distance, i guess you are talking about range. you have to have height. if your trying to operate at 20-30 ft in antenna height you wont get but a couple miles. not worth doing it. also found that these radios are not very sensitive.