[Elecraft] Query on BFO alignment

Fri Dec 27 12:45:06 2002

Hi

I would go forward with the building. You are close enough to the bottom
end. If there is a problem it will show up when you try to align the filters
with spectrogram. If you need more range you can add a 47pf cap in parallel
C174 and a 120pf cap in parallel with C173 to increase the range. Add the
caps to the bottom of the board

Don Brown
KD5NDB

----- Original Message -----
From: "Gregg R. Lengling" <[email protected]>
To: <[email protected]>
Sent: Friday, December 27, 2002 11:19 AM
Subject: [Elecraft] Query on BFO alignment

I'm in the process of building my Christmas present from my wife....K2 S#
3075 (with all the options...she's a big spender), and I'm doing just fine.
I was just doing the BFO Test and I've got a range of 3.77kHz which
according to the book is good (must be equal to or greater than 3.6kHz).
However the BFO high freq is >=4916.3 (actual reading 4916.86) but the BFO
Low Freq. is supposed to be <= 4912.7kHz (actual reading is 4913.09)....now
that means my low reading is meeting spec....is this a problem.  The  4MHz
oscillator calibration is done properly (Used an IFR1200S to smell the
oscillator and the IFR is in calibration).
So is any of this minor descrepancy a problem...or should I just continue
onward????
Thanks in advance ....

Gregg R. Lengling, W9DHI
PSYCHOLOGY:  The science of inventing words for things that do not exist.

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