Question edited for clarity.
Question moved from Cars and Trucks to Intercoms.
Contact the maker. It is likely that the buzzer sounder has failed, or the power to it. You say you "looked at the wiring diagram", I couldn't find one. I guess you meant the 'circuit board'.
https://www.fermax.com/uk/technical-support
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If the PPT (Push-To-Talk) button on your Rino 650 is not working, there are a few things you can try to troubleshoot the issue:
Check the battery: Make sure that the battery is fully charged and properly installed in the device.
Check the settings: Make sure that the device is set to the correct frequency and that the PTT button is configured correctly in the settings.
Check the physical button: Make sure that the PTT button is not stuck or damaged in any way.
Check for software updates: Make sure that your device has the latest software updates installed.
Check for interference: Make sure that your device is not too close to other electronic devices that may be causing interference.
Check the programming: Make sure that the device is properly programmed with the correct settings, including the correct channels and frequencies.
Check if the device is in a low power mode, if so, switch it to high power mode.
If none of the above steps resolve the issue, you may need to contact the manufacturer or a professional technician for further assistance.
It's recommended to check the user manual of your device before trying any of the above steps, as the process of troubleshooting a PTT button can vary depending on the model and manufacturer.
As a licenced HAM Radio opperator, you will be aware of the legalities and the frequencies you are allowed to use.
What is your question I wonder . ..........................................
If your FT-747GX is not transmitting when you press the PTT button, there are a few things you can try to troubleshoot the issue:
Check the settings: Make sure that the transmitter is set to the correct frequency, mode, and power level. Also, check that the mic gain and RF power settings are adjusted correctly.
Check the antenna connection: Make sure that the antenna is properly connected to the radio and that there are no loose connections.
Check the power supply: Make sure that the radio is receiving adequate power and that the power supply is functioning properly.
Check for software updates: Make sure that your device has the latest software updates installed.
Check for interference: Make sure that your device is not too close to other electronic devices that may be causing interference.
Check the values of the voltage on the main board, as you mentioned, the values of 4.5 and 0 for RX and 0 and 1.4 on TX, it could be possible that one of them is too low or high, which can cause the issue.
Check the PTT switch, and make sure that it is working properly and not stuck.
If none of the above steps resolve the issue, you may need to contact the manufacturer or a professional technician for further assistance. It's recommended to check the user manual of your device before trying any of the above steps, as the process of troubleshooting a transmitter can vary depending on the model and manufacturer.
The wiring code for an RD104E microphone to a DNT Strato 1 Din 8 Pin radio will vary depending on the specific models and manufacturers. It's recommended to check the user manual or the technical specifications of the microphone and the radio to find the correct wiring code.
Here is a general wiring code for RD104E Microphone to 8 pin DIN connector:
Pin 1 - Audio Pin 2 - PTT (Push to Talk) Pin 3 - N/C (No Connection) Pin 4 - N/C (No Connection) Pin 5 - N/C (No Connection) Pin 6 - N/C (No Connection) Pin 7 - Ground Pin 8 - +V (Power)
Keep in mind that this wiring code is a general one, and it may not work for your specific microphone and radio. So, it is highly recommended to check the user manual or the technical specifications of the microphone and the radio to find the correct wiring code.
Also, it's important to make sure that the voltage and amperage requirements of the microphone are compatible with the radio's power supply.
batteries weak
not same channel set
over 2miles it too far or any hills between you distances is less
as we say LINE OF SIGHT only, UHF rules of propagation. all
I am licensed EXTra ham and more. (MIL ET1 was)
even through walls through trees , LESS.
You did not post what antenna it is or what make and model radio you have. The antenna issue could be due to a lot of things or it could be the radio telliing you there is a problem that is not present.
Question edited for clarity.
Question moved from Cars and Trucks to CB Radio.
You need the opinion of another person because your friend may be the one with the issue.
Check you have good connections to the antennae.
Check the Antennae is tuned using a SWR Meter.
Check the Antennae is in a good spot.
There are 2 adjustments for the S meter on a Connex cx-33. SV1 and SV2. The thing about setting that meter is you need to have an accurate RF generator the can ouput -93 dBm
