I have a Retevis RT-95 VHF/UHF 25W mobile radio.
The Retevis RT-95 is also sold under the Anytone AT-778UV name and others.
The radio is working well but the minimum user adjustable squelch threshold (Level 1) is still too high for RXing weak but copyable signals on UHF. I need to press and hold the Monitor key to hear weak signals. On VHF, the Level 1 squelch level is more or less OK.
I want to slightly lower the UHF squelch threshold (at Level 1) so that the squelch opens on weaker signals. I often do this with my commercial radio collection where the squelch threshold is usually set relatively high for commercial users.
I am aware that its possible to access "Test Mode" and this is usually done to enable wideband RX and TX. I presume the same "Test Mode" can be used to adjust various parameters such as the squelch threshold.
I wonder if anybody knows exactly what to do to lower the squelch threshold using Test Mode? Maybe there is a RT-95/AT-778UV service manual or a list of what can be done in Test Mode? I've searched the internet but can't find anything.
It might also be possible to align/tune the radio (including the squelch threshold) using programming software?
Thanks
The Retevis RT-95 is also sold under the Anytone AT-778UV name and others.
The radio is working well but the minimum user adjustable squelch threshold (Level 1) is still too high for RXing weak but copyable signals on UHF. I need to press and hold the Monitor key to hear weak signals. On VHF, the Level 1 squelch level is more or less OK.
I want to slightly lower the UHF squelch threshold (at Level 1) so that the squelch opens on weaker signals. I often do this with my commercial radio collection where the squelch threshold is usually set relatively high for commercial users.
I am aware that its possible to access "Test Mode" and this is usually done to enable wideband RX and TX. I presume the same "Test Mode" can be used to adjust various parameters such as the squelch threshold.
I wonder if anybody knows exactly what to do to lower the squelch threshold using Test Mode? Maybe there is a RT-95/AT-778UV service manual or a list of what can be done in Test Mode? I've searched the internet but can't find anything.
It might also be possible to align/tune the radio (including the squelch threshold) using programming software?
Thanks
