[Elecraft] Ham radio as a side dish

K8TE billamader at gmail.com
Mon May 28 16:13:27 EDT 2018


I'm amazed that such an eclectic group has so many similar experiences in
which I am included:  flying, NAVAIDs, boats, trumpet, bass in choir, etc. 
Adding to the ILS story, while stationed at Canon AFB NM, I also worked
full-time as a TV broadcast engineer.  I was part of a team that installed a
new FM station at the same location.

Shortly after that, I got word at the Communications Squadron Chief of
Maintenance office where I worked of F-111D pilots experiencing country and
western music on on runway's ILS approach.  The FM frequency was 107.5, just
below the ILS localizer band.  My Chief and I stook a giant RADAR spectrum
analyzer (two-man carry) to the FM TX site.  As expected, it was clean.

Next, I visited the Avionics shop to put a USM/323 RF signal generator on
one of the F-111 ILS receivers.  With a 105.5 FM modulated signal, the ILS
RX lit up!  It was as broad as...!  The least expensive solution was to move
the ILS (Localizer and Glideslope since they're related) to a new frequency
pair.  That meant new antennas, phasing lines, alignment, etc.  I'm certain
it cost more than the new RCA FM transmitter and antenna/feedline, but was
"easier" to accomplish.

BTW, an HT and helmet-mounted headset work pretty well in sports car racing. 
However, I never tried to add HF mobile to my Spec Miata, much less try CW
while on the track!  I have some interesting in-car video recordings of me
calling my wife after some "incidents."  73, Bill, K8TE



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