I was listening to the 20 meter band today, while the s-meter was not
giving the same signal strenght as a reference FT-757, the TS-120 could
copy every weak signal the 757 could.
=========================
If you want to increase the indication of the S-meter (for example because
you wish it to be the same as on your other transceiver) ,there highly
likely is a trimpot near the meter or in the associated AGC circuit which
you can manipulate. Almost every S-meter derives its signal from the AGC.
If you have a signal generator and a good quality attenuator you can set the
S-meter indication to S9 with a receiver input of 50 microvolts @ 50 Ohms
(-73dBm).
Of course it doesn't mean that the S-meter is then correct over its entire
scale ,
1 S-point meant to be a change of 6 dB.

Frank GM0CSZ / KN6WH

wrote:
Thanks all for discussing the post for my TS-120.

I had the radio open to torque down the band switch knob. For some
reason there was a wire that had been cut which had something to do
with the 15 MHz WWV/ JJY circuit.



I was listening to the 20 meter band today, while the s-meter was not
giving the same signal strenght as a reference FT-757, the TS-120 could
copy every weak signal the 757 could.

Cheers, de KJ4UO

Well, this is getting a bit too much to comprehend - from your original
post, the TS120 had a MDS (Minimum Discernable Signal) of -100dbm, ie
2.25uv - which is pretty poor. If your FT757 is getting the same
results, then its sick too - and it SHOULD be better considering the
high synthesiser noise in the TS120.

Why not read the specifications for your radios - and then post some
meaningful test figures.

73 de VK3BFA Andrew