HW 101 freq drift

[Robert P. Okas]

Hi Jill and the gang,

    I found and fixed this problem in a friend's HW-101 a while back.
Basically, the LMO frequency offset cap, (for switching between USB and
LSB offsets) gets dirty. I don't remember if it's a ceramic trimmer or a
compression trimmer. The trick is to zero beat on a constant carrier, say
a SWBC station on 40m. You should have zero beat on both USB and LSB.
Next, turn the offset cap back and forth a quarter turn in each direction.
Zero beat the carrier again on both sidebands. Smile, you're done.

73,
Bob - W3CD

On Sat, 18 Sep 1999, Jill Dybka wrote:

> Hi
>
> one of my hw 101s has a weird intermittant freq drift problem --
> even if it has been warmed up all day. It's both on TX and RX and
> it's not a slow drift, either, ha ha.  Any ideas?
>
> Thanks
> Jill
> kf4zeo
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