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Transmitter Hunting in the San Francisco Bay
Area
Pack-A-Lunch Hunt
May 18, 2002
Thanks for visiting the San Francisco Bay
Area T-Hunting WEB SITE.
Story by:
Jim-KD6DX
Photographs by: Jim-KD6DX
Resized and edited with
Thumbs-Plus 5.01 &
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From 2560x1920 to
800x600 and highly compressed (50%).
Nikon CP5000
Last updated:
Sunday, June 02, 2002
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Participants
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Foxes:
Don-KD6IRE, Linda-KE6BEO, Jim-KB6VF, Bruce-WD6TED,
Sara-KC6TPY |
TEAMS (10) |
Mileage |
Arrival |
Place |
Jim-KD6DX and Kathleen-N6DOB |
114.2 |
1:38 PM |
1st |
Rich-KN6FW and Chris-KF6VFU |
125 |
3:33 PM |
1st 10% Rule |
Ron-N7TVE and Chantel |
180 |
3:55 PM |
2nd |
Paul Shinn |
Started from Stockton |
1:20 PM |
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Dave-KG6ACD |
Started from Stockton |
2:05 PM |
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Pack-A-Lunch transmitter hunts like the one this weekend are becoming
very educational. Direction finding in the mountains is quite different
from flat land hunting and practice in these here mountains have
improved my hunting skills. As a comparison, on
the April 20th hunt, I drove 110-miles for 5 hours, when the shortest
route should have been 20-miles and only 40-minutes. This hunt, I drove
114-miles for 3 1/2 hours, pretty close to the shortest route of
106-miles for 2 1/2 hours.
This hunt started from the Altamont Pass summit.
Henry-KF6PCE's fox transmitter was full signal strength at the start
point, full scale off the hill, full scale in the valley and full scale
in the mountains. I think it's safe to say, it was full scale along the
whole trip.
Henry also set up a small 1-watt transmitter at his
camp site, to let us hunters know when we were close to him. This,
U-R-In the neighborhood, transmitter really helped. As the small
transmitter approached full scale on my mobile radio, I started looking
for a side street (off the main highway) and followed my Doppler towards
Omo Ranch Road. I also switched my Doppler's receiver to the low powered
transmitter, which reduced the amount of reflections I had been seeing
from the main fox transmitter.
EQUIPMENT I USED:
1) SuperDF: To obtain my
initial bearing of 47* and my other 4 bearing along the way.
2) AHHA
MicroFinder Doppler: Using "Digital Filtering" my Doppler pointed
'Rock' solid, at the fox transmitter. Driving in the mountains was a
different story, then it pointed at all and any reflections.
3)
Garmin StreetPilot-III: This street and trail level GPS mapping
system.
4) Small (8-1/2 x 11) laminated topo map of the Jackson area,
compass,
protractor and felt-tip
pen. I plotted my bearings and got an general idea of where the
transmitter might be located.
5) Icom IC-R3, U-R-Here
radio. An invaluable little receiver for direction finding. With it's
graphic (historical) display of the fox transmitters signal strength and
it's 4 built-in attenuators, I was able to drive for miles, knowing the
fox was further out. As I got to within 2 to 3 miles of the main fox
transmitter, my IC-R3 on attenuation #4 began to receive. As I drove up
Omo Ranch Rd and got within 1 1/2 miles of the main fox, the IC-R3 went
full scale. Switching the IC-R3 to the low powered fox channel, the R3
when full scale when I was 350 feet from the low powered fox.
6) Mobile radio, Standard
C5900DA. I use this tri-bander to listen to both fox frequencies and
talk on the communications channel all at the same time. |
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Low powered fox
1 watt |
20020518_134540.jpg
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Conclusion:
1) Have a map of the area your hunting.
2) Take multiple bearings before you get into the mountains.
3) Listen, at all times, to all the Fox Frequencies.
4) Icom IC-R3, as a
U-R-Here radio is priceless. |
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Special thanks
to Henry-KF6PCE, Bill-KF6QGK, Joan-KF6QGJ and Susan, for putting on this
transmitter hunt. I understand Henry and crew
setup camp at 8:00 AM to provide us hunters with a challenging
transmitter to hunt this weekend. |
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See you at next
Fremont hunt, June 1, 2002. Jim Sakane (KD6DX)
[email protected]
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Pine Grove
Pizza
19724 State Hwy 88
Pine Grove, CA 95665-9457
209-296-8555Excellent pizza.
Jim Sakane (KD6DX) |
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