OK, this is probably a good place to ask:
When trying to copy a weak-ish signal in noise and "other stuff" in the
50's, one of my crewmates at the coastal marine station told me to lay
the cans on the desk, face up. It works. I don't know why, maybe
someone here knows. Surprisingly, I generally didn't need to turn the
gain up much if at all.
The receiver I used most on our HF frequencies was a brand new Collins
51J4. The military version was the R-388A. It had 6 and 3 KHz mech
filters, and a separate, adjustable crystal filter. Did not cover 500
Kcs which was particularly noise and full of signals at night, however
the trick worked on those receivers too, so it wasn't just the mech filter.
- Sparks NV DM09dn
- Northern California Contest Club
- CU in the Cal QSO Party 1-2 Oct 2016
On 9/21/2016 9:43 AM, Guy Olinger K2AV wrote:
On Wed, Sep 21, 2016 at 6:59 AM, Bill W4ZV <btipp...@alum.mit.edu> wrote:
This is nothing new. K3ZO has been doing this for about 30 years (at
using wide filters and his ears as DSP.
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