[Elecraft] Running stations with k3

Fred Jensen k6dgw at foothill.net
Wed Sep 21 15:20:28 EDT 2016


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.

73,

Fred K6DGW
- Sparks NV DM09dn

- Northern California Contest Club
- CU in the Cal QSO Party 1-2 Oct 2016
- www.cqp.org

On 9/21/2016 9:43 AM, Guy Olinger K2AV wrote:
> On Wed, Sep 21, 2016 at 6:59 AM, Bill W4ZV <btippett at alum.mit.edu> wrote:
>
>> This is nothing new.  K3ZO has been doing this for about 30 years (at
>> least)
>> using wide filters and his ears as DSP.



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