Ic 751 drifts on transmit

I would get the service manual first http://www.nodevice.com/manual/ic-736/get118396.html

check RX/TX frequency must be same, also check QT/DQT, this option at both radio must be same or disable.

First, it's illegal to use that radio in the FRS bands. Also many of the Baofeng radios have very "dirty" output (spurs, frequency drift, bad modulation, etc). Your best bet is probably to buy another radio. With these radios about 3 of 10 I've tested have been bad.

Great advice, Robert.

Peter

You are on a portion of the 2 meter band that the radio does not allow you to transmit on. You need to get within the legal band portion and transmit there. The IC-V8000 only transmits between 144.000mHz and 148.000mHz. You likely have the radio outside of that range.

for upper ssb adjust L21 for 16.51250 mhz . adjust L22 for 16.50750 for lower ssb. you do have a frequency counter don't you ?

this is a model first sold in 2003 that uses two STK-394-250 convergence IC's---this is not an easy model to work on---I suspect one of the two IC chips is flakey---intermittant---if you repair it make sure you change both; the only less expensive possible problem is one of the IC's may have developed poor or bad solder connections on one of its pins(about18 pins on each ic)---if soldering is good--you have to replace the chips and see what you have.


if this was helpful give me a vote here---I do this for free

Here is a link to the manual with schematics

it may not be that IC but maybe a electritic cap or a transister.

Thanks for letting me post a question.
After taking it apart again I found a pin on the lower board socket that got bent over on reassembly........