[Elecraft] K2 First Alignment. Good but no XG1 signal

[Tom Hammond]

Hi Rich:

At 04:42 PM 8/21/04, you wrote:
>I am building my second K2. I bought an XG1 after the first one was 
>complete so did not use it on the other build until after it was running.
>
>I am to the point in the process where I just did my first alignment step. 
>Everything was perfect and S meter calibrated fine. There is a note that 
>says if you have the XG1, you can use it to get your 50mv S9 signal at 
>this point.
>
>They do not give you much more detail than that. So I attached it to the 
>BNC at the back and nothing.  Looking over the schematic It looke like W1 
>might have to be installed. I did not spend much time looking but that 
>seemed to be the case.
>
>So, should you be able to use the BNC and XG1 and get a signal?  Seems 
>like the RF board is not far enough along to do that yet.

Very perceptive!!! Installation of jumper W1 doesn't occur until page 56 in 
the Rev F manual, while mention of using the XG1 occurs on page 47.

Of course, you are correct! You'll have to have a patent RF path in order 
to obtain much of a signal from the XG1... though there might be a little 
signal sneak thru, installing jumper W1 is certainly the BEST way to ensure 
that you can hear something... heheh!

IN FACT... I'm not certain it'd even matter IF YOU DID install W1 at the 
point you're presently at anyway... you still can't receive on 40M!!! NO 
band-specific components have been installed yet, so there'd be no way to 
receive the 7040kHz signal from the XG1 regardless...!

I'd suggest you bide your time until page 64 in the (Rev F) manual.. just 
before you resume Assembly (Part III). THEN, you can perform S-meter 
calibration using the XG1.

73,

Tom Hammond    N0SS