TS-120
Hi all,
I have a TS-120 and I think the ears are a little weak, comparing the
rig with my 757, the s-meter on the 757 always reads more.
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.
The lower bands, 80 meters is putting out the least.
I did see where a wire had been cut and this wire was touching just
behind the last waper on the RF board. 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.
I did not have any reference data before the event.
If you have a TS-120 and can look at 14.2 21.2 and the other bands as
the band switch is moved and tell me your reading, it may tell me if I
need to search for a defective part.
As far as I could tell, the unit still draws about 20 amps into the
dummy load so output power did not change.
De KJ4UO
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