[Elecraft] IF Amplifier Alignment

Sun Oct 26 14:32:00 2003

Here is how I adjust the IF amp and the bandpass filters on receive. First
find peak which is about 1 turn in. If you turn it passed 2 turns you will
hear noise pick up. That's too far. Turn your RF gain control back until a
led just flickers, somewhere in the middle. Now when you fine tune the slug
the peak will appear when the flicker of the led goes out(not solid). This
will give you the highest peak. This works because as you reduce the
sensitivity by reducing  the RF gain control the S meter will light more
leds So when you reach your peak the led will go out. Hence the reason to
have a flickering led..
George N8GW
K2100 #3091
----- Original Message ----- 
From: "Terry Schieler" <[email protected]>
To: "Elecraft Reflector" <[email protected]>
Sent: Saturday, October 25, 2003 4:02 PM
Subject: [Elecraft] IF Amplifier Alignment


> I am doing the IF Amplifier Alignment on page 61 of the K2 Manual.  Near
the
> bottom of the left column you are instructed to listen to the internally
> generated CW signal at 7000 kHz and adjust L34 for best signal strength
and
> lowest noise.
>
> Then is suggests that "you can use your DMM on AC volts at the speaker
jack
> for a more sensitive indication".
>
> Am I correct to assume that I am looking for nothing more than a simple
peak
> in AC volts here?
>
> Thanks,
>
> Terry, W�FM
>
>
>
>
> _______________________________________________
> Elecraft mailing list: [email protected]
> You must be subscribed to post to the list.
> To subscribe or unsubscribe see:
http://mailman.qth.net/mailman/listinfo/elecraft
> Elecraft Web Page: http://www.elecraft.com
> Also see: http://www.elecraft.com/elecraft_list_guidelines.htm
>