Improve AGC (SSB receive), voice will no distortion in short distance communication.Ĭ. SSB power adjusted by power knob, between 10W -33W.ī. Default ex Factory is 15 and is variable from 0-64Ī. The higher the level the louder the sound. The higher the level the more sensitive the mike is ICG: This is a variable mike gain feature which has settings from 0-64 Factory default is 31 No more talkback with echo and talk back with no echo Īnd if read it elsewhere it came from me first. I will attempt the mod very soon and let everyone know whether the problem is resolved or not.įunny i think Anytone have got a hold of a Han's special and there will be a revised version of the radio due out in the next couple of months with certain mods that Hans has done and also new firmware. I am no expert in receiver design, so it would have come to experimentally changing a resistor/cap at most in an attempt to avoid the overshoot.

My plan was to slow the AGC down a bit in an attempt to prevent the distortion (it sounds 'clicky'). The explanation of the mod left me in doubt too. Obviously it does have an AGC problem though. I don't have one of these radios but I don't agree with the technical explanation about why the radio suffers from big signals. RD250 wrote:I read the stuff about the AGC mod. In other words, there's probably an even better way to mod the AGC to prevent distortion due to instability at certain parts of the AGC range.

My guess its that this radio is simply a hastily prepared clone of an old Uniden design and maybe they didn't really look at the AGC characteristics too closely before going to production. Often it's better to look at the whole AGC loop and find out if the AGC gain slope (AGC volts vs gain change) goes steeper or flatter in places. One way to cure this is to simply slug the response time of the AGC (which is probably what this mod does) However, this will affect the response time in other parts of the AGC range that were already OK. This can cause AM modulation of the wanted signal by the AGC and makes the signal sound distorted. Usually the reason for distortion on big signals is the fact that the AGC control loop has become underdamped at a certain part of the AGC range.

Anytone smart 10m mods