Erk - hi all,

you need to get a very basic book on radios, and read up the theory -
it will improve your fault finding no end. (probably mid 70's ARRL
handbook would be a good primer)

The sig gen is irrelevant at this stage - you have already proved that
by observation of the S meter during Cal (thats one of its functions
along with calibrating frequency)

Also, unconnected wires and/or smoke are a basic radio no no.

This is going to be hard --- to try and fix a radio by remote
control, but will give it a try if you want to persevere.

73 de VK3BFA Andrew

-ex- wrote:
wrote:

Hi all,

I have a TS-120

The 120 has a cal signal knob, I put the cal signal out on 14.2 MHz and
get S-3, on the 21.2, it back up to S-7. The best output is at 29.2
with a little over S-9.

I don't understand why it takes a dip in the 20 meter and in the JJY
band, since JJY band is for WWV at 15 MHz just above the 20 meter band
then it would use some of the same circuits.

It emitted smoke while
listening in the 20 meter band but not in the other bands.

As far as using a signal generator, I have a wavetek 3001, I could
determine a signal down to about -100dbm on 20 meters and down to about
-110 dbm on 15 meters.

That "smoke" part is very indicative of something wrong and should be a
good lead for troubleshooting!

-BM