[IRCA] Tone Testers on 1610/1020 and 590 - Direction Finding - other options

["Tom Jasinski" <amdxer@xxxxxxxx>]

We need to refine our direction finding capabilities.  My I suggest that
instead of using compass angles from your location use the deviation angle
to a known station transmitter site instead.  Transmitter site coordinates
are very accurate. Get a null on a big power house and then retune and
adjust antenna for a null on the unknown signal.  Anyone with a Quantum
loop or equivalent or a good quality portable radio can easily do this.

For example the test tone on 1020, report your bearing relative to KDKA,
KYW, WBAL or other easily heard powerhouse in the vicinity.  From my
location the
signal from the tone tester on 1020 is about ten degrees south of bearing to
KDKA.  The
station on 1610 was a few degrees south of bearing to WTAM on 1100.

The map created by Jim Tonne looks good and is a great idea, lets give
him more accurate information to use for a better fix on the tone testers.
Anyone with ideas or suggestions to improve on this are welcome.

Tom Jasinski
Shorewood, IL


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