[HBR] Note on 1600-1700 kcs IF frequencies

[B Smith]

When I built my HBR-14 last winter I used an IF of 1700 kcs due to a local
broadcast
station. 160 meter operations were fine but with a "birdie" at 1870KCs (IF
plus 2X 85KC)

breck k4che


 
 
 
 
-------Original Message-------
 
From: C Eus
Date: 5/16/2010 4:07:40 PM
To: hbr at mailman.qth.net
Subject: [HBR] Note on 1600-1700 kcs IF frequencies
 
In the past, I had voiced some concerns regarding possible QRM from AM
broadcast radio stations operating in the region of our HBR IF frequencies.
  http://en.wikipedia.org/wiki/Highway_advisory_radio
 
Sure enough, as the above link points out, there are FCC set asides for
Highway Advisory Radio, starting from 1610 kcs on up to 1700.  One may want
to be aware of this.  My hope is that there isn't one around my neck of the
woods that would cause a Q-R-Nancy.  If it gets too much of a problem, I can
possibly see this phenomenon chasing us clear into the 160 meter band,
which opens up a new can of worms, HI HI! 73 de Cal, N6KYR/4.
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