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Transmitter Hunting in the San Francisco Bay Area
Fremont Hunt
October 5, 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
& Photo Shop 7.0
From 2560x1920 to 800x600 and highly compressed (50%).
Nikon CP5000

Last updated: Sunday, November 30, 2003

PARTICIPANTS in this Fremont hunt.
FOX
Henry KF6PCE
Henry-KF6PCE and Joan-KF6QGJ

HUNTERS
Jim KD6DX


Jim-KD6DX, Rich-KN6FW, Dan-KO6YG
Dave-KG6ACD, Gary-KD6UIR, Sherri-KE6BLX, Gary-WB6YRU
Bill-K6TYO, Chris-KF6VFU, James-N1DDK

 

Participants in the Fremont mobile hunt

Foxes: Paul Shinn, Henry-KF6PCE, Joan-KF6QGJ, Bill-KF6QGK

TEAMS (8)

Mileage

Notes

Jim-KD6DX 4.7 1st
Rich-KN6FW and Dan-KO6YG 5.1 1st
Dave-KG6ACD 9.6 2nd
Gary-KD6UIR and Sherri-KE6BLX 10.0 2nd
Gary-WB6YRU 11.6 3rd
Bill-K6TYO 12.2 3rd
Chris-KF6VFU 14.2 4th
James-N1DDK 8.? Walked near the fox.

 

00map1.gif
3-D map
00map2.gif
Overall map
with GPS track
From the Fremont start point roadway, I read an incorrect bearing of 300* to the easy fox and multiple bearings to the hard fox. Because of the multiple readings, I decided to climb a hill and get bearings from a near by peak. Up on top I read a bearing of 193* to the hard 1st fox and 175* to the easy 2nd fox.

I think the hard fox bearing was a reflection since the transmitter was in a flood control channel, below ground level, facing west. I also believe the easy fox signal was blocked by a large hill to our east.

After driving away from the Start Point mountains, my Doppler began pointing correctly towards both foxes. Plotting a GPS route (shortest distance) on my StreetPilot-III towards Hwy-237 I took back roads to Hwy-880 and ramped off at Dixon Landing Road.

At this point my Doppler pointed South/East but, since my initial bearing indicated South/West I took the new frontage road south/west towards McCarthy Ranch in Milpitas.

Quickly my Doppler and U-R-Here radio indicated I was on the right road and within a few hundred feet of the transmitter.

Taking my 4-element Arrow beam and Scout-40 frequency counter with me, I walked over a couple of hills and located the hard 1st transmitter. I don't think I could have found it, if it were not for my close-in gear. I had to point and get my beam to within a few inches of the transmitting antenna before I saw the thing.

Driving towards the Easy 2nd Fox was not too difficult. When I arrived at McCarthy Ranch, my Doppler continued to point east, away from my initial bearing. Knowing there was a Round Table Pizza just east of Hwy-880 I made my route correction and headed towards Round Table.

20021005_174439.jpg
20021005_174439.jpg
James & Dave
20021005_174452.jpg
20021005_174452.jpg
Start point roadway.
20021005_174508.jpg
20021005_174508.jpg
Bill & Gary
20021005_174519.jpg
20021005_174519.jpg
Rich & Dave
20021005_175626.jpg
20021005_175626.jpg
Dan
20021005_175635.jpg
20021005_175635.jpg
Sherri, Gary & Rich
20021005_180919.jpg
20021005_180919.jpg
Chris, Dan & Rich
20021005_180929.jpg
20021005_180929.jpg
Top of the hill.
20021005_181416.jpg
20021005_181416.jpg
Roadway down below
20021005_183552.jpg
20021005_183552.jpg
Hard Fox

Equipment I used.

1) 4-element beam: To obtain my initial bearings and for close-in work.
2) AHHA MicroFinder Doppler. Very helpful.
3) Garmin StreetPilot-III: Street level GPS map and auto routing to find the shortest route to the foxes.
4) Laptop Computer: TOPO GPS mapping. Very useful, plotting my initial bearings.
5) Icom IC-R3, U-R-Here radio. Full scale on attenuation-4 when I was near the FOXES
6) Scout-40 frequency counter, connected to my 4-element beam and used as a close-in sniffer.
7) Mobile radio, Standard C5900DA. Listen to the fox frequency and talk-in communications channel.

CONCLUSION:
A good BEAM (mine is made by Arrow Antenna), the StreetPilot-III for auto routing a short route to my destination, a laptop computer running TOPO to plot my bearings, the U-R-Here radio (Icom IC-R3) to tell me I'm close enough to walk and my Scout-40 frequency counter to sniff out the transmitter.

20021005_183553.jpg
20021005_183553.jpg
Hard Fox
20021005_183554.jpg
20021005_183554.jpg
Hard Fox
20021005_183729.jpg
20021005_183729.jpg
Hard Fox, Bill.
20021005_185115.jpg
20021005_185115.jpg
Easy Fox
20021005_194549.jpg
20021005_194549.jpg
Round Table Pizza
20021005_200438.jpg
20021005_200438.jpg
Remember, October 19, 2002, Pacificon 2002 (no hunt).

See you on on November 2, 2002 at 5:00 PM for the Fremont Hunt. (Note: pacific standard time change so the start time changes to 5:00 PM).

Jim Sakane (KD6DX)

20021005_210208.jpg
20021005_210208.jpg

Andy-KR6DD and Rosa fount the
easy fox and joined use for dinner.

Send mail to jim@thunt.org with questions or comments about this web site.
Copyright © 2000 Sakane Lock & Security