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Re: mute QDX - update


 

All,

Well now there's a thing.

Rx is now fine - original fault ????

Tx, is FUBAR!

I know why but not why.

In Rx there is a nice signal on the Clk0 & Clk1 lines at the Rx frequency and they are 90 Degrees apart.

On Tx then the frequency on those lines doubles! i.e. if 40M set then 15-ish MHz is seen. They are correctly phased on the gates of the FETs (removed but looks like I didn't need to).

If I run a sweep the Clk0 & Clk1 sweep across the frequency band set but Clk2 is ~2F

That's not right!

A reload of the firmware & factory reset results in the same result!

That explains the sweeps - all well out of range as Clk2 is also 2F not F.

Ideas - Hans?

Regards & thanks for the help

Nick
M0HGU
--
What your soldier wants - really, really wants - is no-one shooting
back at him. (alt.fan.pratchett)
Wed 10984 Sep 16:40:02 BST 1993
16:40:02 up 3 days, 23:37, 8 users, load average: 0.74, 0.38, 0.39



--
73 Nick M0HGU

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