[Elecraft] K2 AGC/S-meter calibration - cw vs. ssb

Thu Apr 22 14:11:00 2004

YES!
My K2 #3829 has no mods to ksb2 , but behaviour is just the same.
Doesn't really bother me since 55 report is just as good as 57.
so long I can copy the signal the meter is just a indicator of signal on =
the antenna.
But I agree that it would be nice to have the modes even adjusted.
Is there a fix on the way?
WAYNE??? Your call :-)

----- Original Message -----=20
From: "Dale Boresz" <[email protected]>
To: <[email protected]>
Sent: Thursday, April 22, 2004 5:35 PM
Subject: [Elecraft] K2 AGC/S-meter calibration - cw vs. ssb

> I've only had my K2 now for about a year and a half, so one would =
think=20
> that I'd have noticed this before...
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> I set up my CAL S LO, and CAL S HI adjustment while in CW mode, on the =

> widest filter bandwidth (~1.4KHz). Using the XG1 I can confirm that 50 =

> uV input corresponds to S9 on the S-meter, and with no signal input to =

> the K2, the left-most bar on the S-meter just barely flickers. So all=20
> seems fine in CW mode.
>=20
> However, if I switch to either USB or LSB, with no signal input to the =

> K2, the left-most 2 bars of the S-meter are lit, and 50 uV input =
causes=20
> two bars beyond S9 to light. (at least it's linear!)
>=20
> The only modifications to the KSB2 are the 2.5KHz mod. The BFO/filter=20
> balance on the OPT1 filter looks very good on Spectrogram, and sounds=20
> good on the air, so the problem is not the result of a grossly=20
> mis-aligned BFO adjustment in either of the SSB modes.
>=20
> Has anyone else noticed a similar disparity in the S-meter calibration =

> between CW and either of the SSB modes?
>=20
> 73, Dale / WA8SRA
>=20
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>=20
> 