[Hammarlund] HQ-110 alignment

[Kenneth G. Gordon]

On 5 Apr 2006 at 21:56, njmikec at optonline.net wrote:

> Someday perhaps you can tell me about sweep generators.
> I have a 'sweeper' on the way but right now I'm using a sig gen and
> things are working out well so far.
> 
> Are you using a sweep gen to do this or just the sig gen part of the
> Tek?

It sounds to me as though Julian is using the so-called "visual method" 
of alignment, which, as far as I'm concerned, is the ONLY way to 
properly align a multi-stage IF strip.

The method requires a sweep generator and an oscilloscope.

I've used the method in the past, and although the first time set-up was 
difficult for me, since it is not "intuitively obvious", once I had it working 
properly, it was a real eye-opener concerning how easy it was to get 
near perfect IF alignment.

One "secret" is that the sweep rate must be as slow as you can make it, 
which requires either a darkened room or a 'scope with a long-
persistence trace.

Ken W7EKB