[Elecraft] K2 #2740 13 Khz Off Frequency

Charles Bland [email protected]
Fri Aug 16 23:16:00 2002


I'd go back and repeat the first alignment and test sections. Make 
sure the osc is lined-up, etc.

Chuck

Note Jim W7RY's stunning brilliance and Chuck's apt reply (gack!)

Send reply to:  	"Jim W7RY" <[email protected]>
From:           	"Jim W7RY" <[email protected]>
To:             	<[email protected]>
Subject:        	[Elecraft] K2 #2740 13 Khz Off Frequency
Date sent:      	Fri, 16 Aug 2002 19:21:37 -0700

> Well... I have # 2740 running as a 40 meter receiver... But, it receives
> exactly 13Khz off frequency (VFO reads high).
> 
> There is another peculiar thing.... at 11.5 KHz above the injected
> frequency, there is a "birdie". The birdie moves much faster than the
> fundamental at +13 KHz above.
> 
> I have verified that all of the crystals AS SUPPLIED are installed in the
> correct locations...
> 
> I have also verified that the 4.00 MHz reference is within 1 or 2 Hz.
> 
> All of the checks and alignments that are shown in "Alignment and Test Part
> II" starting on page 57 are correct and line up perfectly.
> 
> The parts list spells out  X1 and X2 to be a 12.069 MHz. My kit contained
> crystals that are marked  12.09-S.
> In addition, X5 through X11 are marked 4.9136-S.
> 
> 
> The receiver works great! Very sensitive.
> The signal I am injecting is at a level of -105dBm. (Not overloading the
> receiver).
> 
> Any ideas ?
> 
> Thanks and 73
> Jim W7RY
> 
> 
> 
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