[Elecraft] Inoperable S-Meter - Now works and new question aboutalignment

Don Brown DolfinDon at msn.com
Sun Feb 19 07:39:15 EST 2006


Hi

These S-meter settings sound like the readings when T7 is reversed. I have 
seen this several times and it makes the AGC and S-meter flaky as well as 
the sensitivity low. However you can make the radio appear to work although 
it just seems not quite right. The red wire winding should be closest to the 
IC U12 and the green winding should be closest to the jumper W3. Looking at 
another way the red winding should be in pads marked 3 and 4 and the green 
in 1 and 2. This may not be your problem but it is worth a look.

Don Brown

KD5NDB


----- Original Message ----- 
From: "Don Wilhelm" <w3fpr at earthlink.net>
To: "Elecraft reflector" <elecraft at mailman.qth.net>
Sent: Saturday, February 18, 2006 10:15 PM
Subject: FW: [Elecraft] Inoperable S-Meter - Now works and new question 
aboutalignment

>
>
> > Rich,
> >
> > Your S-meter settings of 191 and 009 are a bit more broad than I
> > usually experience, but the AGC Threshold setting has a lot to do
> > with the final settings too - the 3 settings do interact a bit.
> > I usually end up with 185 to 189 for the low setting and 16 to 19
> > for the high - but that is after optimizing the AGC Threshold
> > voltage to produce no noticable change when switching from AGC ON
> > to AGC OFF with no antenna connected (I usually end up with an
> > AGC Threshold voltage between 3.65 and 3.75 volts).  I also
> > strive to place a 50 uV signal on 40 meters (with preamp off) at
> > S-9 on the S-meter, so that is a bit more 'fussing' with the AGC
> > Threshold and CAL S LO and CAL S HI.
> >

SNIP

> > Don W3FPR
> >
> > > -----Original Message-----
> > > 


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