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

["R. F. Tetro" <rtetro@xxxxxxxxx>]

If you use a compass, remember with a compass to add-subtract the
difference between true north and magnetic north.  I know in my area
this means adding about 12 degrees to the compass reading.

Rene F. Tetro
Lansdale, PA, USA
W2FIL, WPXG816, WPXU288
Coordinates:  40D12'41"N  75D18'22"W
Grid:  FN20IF
Email:  rtetro@xxxxxxxxx
Moderator:  www.radioveronica.us and www.dxhub.com



-----Original Message-----
From: irca-bounces@xxxxxxxxxxxxxxxx
[mailto:irca-bounces@xxxxxxxxxxxxxxxx] On Behalf Of Neil Kazaross
Sent: Saturday, December 02, 2006 7:10 PM
To: Mailing list for the International Radio Club of America;
am@xxxxxxxxxxx
Subject: Re: [IRCA] Tone Testers on 1610/1020 and 590 - Direction
Finding -other options

My very strong opinion is that this is likely lots more accurate than
using 
a compass for most of us.

73 KAZ
----- Original Message ----- 
From: "Tom Jasinski" <amdxer@xxxxxxxx>
To: <irca@xxxxxxxxxxxxxxxx>; <am@xxxxxxxxxxx>
Sent: Saturday, December 02, 2006 12:59 PM
Subject: [IRCA] Tone Testers on 1610/1020 and 590 - Direction Finding
-other 
options


> 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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