Jay,
Normally, the preamp and attenuator will change the S-meter reading. If
you do not want that to happen, go into the menu and change to SMTR
ABS. I suggest (contrary to the manual suggestion) that you calibrate
the S-meter with the preamp and attenuator both off before setting SMTR
ABS, but the choice is yours. If you calibrate with the preamp on, then
switch to SMTR ABS, a 50 uV signal will read S-7 rather than S-9.
73,
Don W3FPR
On 4/27/2013 5:10 PM, Jay Krishna wrote:
I wanted to ask about the K3 S-meter readings I noticed: 1. S7 with ATT off and PRE
on2. S5 with ATT off and PRE off3. S3 with ATT on and PRE off These were for a CW
signal on 20M; I read that turning the attenuator on and preamp off provides a
better signal by lowering the noise level in the IF stages and beyond. I can hear
the signal better too, but wanted to ask if the S meter readings are supposed to
change with the settings of ATT & PRE? Thanks! Jay (KD6AMA)
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