On 1/26/10 10:08 , bpnjensen wrote:
My DX-160 freqs are so far off that it needs SOMETHING... :-O Band 3
is a disaster; 2 is quite good, 4 is pretty far off but usable, 5 is
not great. Band 1 is so full of intermod products as to be useless
anyway...




That's about normal for DX-160 at this age. And it will be prone
to intermod. The RF gain control is before the first gain stage, so
just turn it down until the intermod products start to decrease. Or
reduce the amount of antenna. A good ground will help, too.

Dial calibration is usually adjusted with LO for each band. The
upper bands will be further out of tolerance due to the greater
sensitivity to component value drift at higher frequencies.

Of course, if the bands are significantly out, you can well
assume with some certainty that the IF's are also out. Though likely
not by too much.

The bandswitch can be kind of flaky. Can spray cleaning may not
have the desired results. If you want to go bat**** crazy with this,
GoldPoint makes a really nice, configurable-to-purpose Swiss made
switch that can be applied to replace the flaky factory switch.
You'll never have bandswitch problems again. Cost more more than the
radio. More than a couple of them, actually, but anything worth
doing is worth overdoing.

They also make some detented step switch rotary faders for audio
(I put one in my C-26 preamp) they're amazing. But also not cheap.

I found the manual with schematic for mine. I can have a copy
made for you, if you need it.

p