[DSP-10] Re: [DSP-10]! VHF VCO,
Jimmy Oldaker W7CQ
[email protected]
Tue, 27 May 2003 21:49:09 -0700
At 09:45 AM 5/27/03 , you wrote:
>A few peculiarities with my unit, the VHF VCO would not lock unless the
>slug in L102 is removed from the can. The control voltage is 2.5V at 147
>MHz and approx 0.5V at 144 MHz. PLL operation appears normal although the
>control voltage is a volt or so low. I can raise the voltage pulling the
>slug in slightly into the can but the slug hangs out of the can loose.
Bob and All
here is a fix we noticed for the first kitting of the DSP-10
In the middle are a couple of red paragraphs about the locking of the
VCO. This might help. We too noticed the slug needed to be almost falling
out to work and this is the fix.
This can be found on our web site.
http://home.teleport.com/~oldaker/dsp10_repository.htm
Under DSP-10 initial testing . doc.
CONGRADULATIONS and good work!
Jimmy W7CQ
73's - Jimmy - W7CQ - CN83jx
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