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Is it true or urban legend

TM86

Supporting Member
Jul 6, 2014
956
1,311
153
Payson, AZ
I did one Fox Hunt in Culver City California back in 1988 and it took these guys about half a day to find me since I was on the top floor of a parking structure in a small medical building and nobody thought to look inside the parking structure.

Parked under a bridge one time. Meters would jump in either direction along the riverbed, and drop directly over our position. Upset a few people with that one.
 

jdobbs2001

Active Member
Mar 20, 2012
149
54
38
There are capabilities to triangulate your position in seconds but those assets and capabilities belong to other agencies.

The FCC has more important battles to fight and 11 meters is way down in the food chain.
 
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jdobbs2001

Active Member
Mar 20, 2012
149
54
38
Snoop loops are nice, but not allowed on fox hunts. They're supposed to be a challenge.

Also, it's funny to see a dozen cars driving in circles in a parking lot trying to figure out which direction to go.

I remember when I was a teen building a modified pair of CB’s that would burst transmit your voice and cause the reciving station to switch to a random channel awaiting the next burst transmit.

The way it worked is both radios had been modified to work with a tape recorder that would record a preamble which would indicate a random channel picked by a commodore 64 then when you spoke it would be recorded on a tape loop. Once you finished, the system would play the preamble and voice at a very high speed, it sounded like a squirt. I would use the time of day to create a new seed value for the PRNG routine running in basic.

So as both users would converse all you would hear is a quick burst on a channel and nothing else for a while. You would have to move channels all the time to try and attempt to follow the convo.

On every transmit the channel on transmit and recieve radio would change to the new channel. It could go like. Channel 18 then 5 then 22 then 39 etc.. it worked great also as a countermeasure against the dipshit in the neighborhood who wanted to keydown and jam our comms. Lots of fun back then.
 
Last edited:

Road Squawker

Sr. Member
Jan 19, 2011
1,954
1,497
173
There are capabilities to triangulate your position in seconds but those assets and capabilities belong to other agencies..

FCC field agents are equipped with direction finding gear, and they do know how to use it.
"Angle of arrival" (triangulation) is just one of many methods used to determine a transmitters location.
 

TM86

Supporting Member
Jul 6, 2014
956
1,311
153
Payson, AZ
I remember when I was a teen building a modified pair of CB’s that would burst transmit your voice and cause the reciving station to switch to a random channel awaiting the next burst transmit.

The way it worked is both radios had been modified to work with a tape recorder that would record a preamble which would indicate a random channel picked by a commodore 64 then when you spoke it would be recorded on a tape loop. Once you finished, the system would play the preamble and voice at a very high speed, it sounded like a squirt. I would use the time of day to create a new seed value for the PRNG routine running in basic.

So as both users would converse all you would hear is a quick burst on a channel and nothing else for a while. You would have to move channels all the time to try and attempt to follow the convo.

On every transmit the channel on transmit and recieve radio would change to the new channel. It could go like. Channel 18 then 5 then 22 then 39 etc.. it worked great also as a countermeasure against the dipshit in the neighborhood who wanted to keydown and jam our comms. Lots of fun back then.

And today you could do it all in software with a Raspberry Pi.

Not taking away from what you did, because it's very cool. Just thinking of what it would look like today.
 
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43315

Member
Jan 11, 2009
17
22
13
57
Have a dopler system. Antenna on the four corners of the roof.
It measures the difference between each one and has a circle of less showing me what direction the single is coming from. Can be on a doorstep on no time. We did a lot of fox hunts few years ago. Might have to break it out again.
Funny telling someone jaming a repeater what the color of there house and make of car in the drive.
LoL
 

Rwb

tell the devil im gettin there as fast as i can,r
Jun 30, 2018
3,101
3,912
273
67
Have a dopler system. Antenna on the four corners of the roof.
It measures the difference between each one and has a circle of less showing me what direction the single is coming from. Can be on a doorstep on no time. We did a lot of fox hunts few years ago. Might have to break it out again.
Funny telling someone jaming a repeater what the color of there house and make of car in the drive.
LoL
you do realize this is an old post?
 

Robb

Yup
Dec 18, 2008
11,433
3,561
323
Silicon Valley CA, Storm Lake IA
If you think you are safe using a 400w amp and think the FCC has better things to do; them reconsider. The first time you interfere with a fire station, or the police dept., or ambulance services, US naval vessels (been there; done that)/military communications, or - dare I say it - air traffic controllers and aircraft, they will hunt yer azz with a new found zeal.

The really neat thing? You won't know that you were interfering until you get a notice in the mail, or a knock on the door.
Roll the dice, deal the cards, and spin the wheel; you take your chances.
 

Shadetree Mechanic

808 On The North Side of Dover
Oct 23, 2017
4,900
7,840
623
50
The First State (Delaware)
There are some frequencies that you want to stay away from too. I got this from Bells CB website.

Frequencies To Stay Away From

Frequency - User
25.670-26.100 - Broadcast remotes
26.617 - Civil Air Patrol (CAP)
27.430, 27.450, 27.490, 27.510, 27.530 - Business
27.870, 27.920, 27.974 - US Navy-MARS
28.000 -29.700 - 10 Meter Ham Band





27.410 EXPERIMENTAL
27.415
27.420 USGOV
27.425
27.430 BUSINESS
27.435
27.440 EXPERIMENTAL
27.445
27.450 BUSINESS
27.455
27.460
27.465
27.470 BUSINESS
27.475
27.480
27.485
27.490 BIS (ITINERANT)
27.495
27.500
27.505
27.510 BIS (LOW POWER)
27.515
27.520 USGOV
27.525
27.530 BIS (LOW POWER)
27.535
27.540 USGOV
27.545 USGOV
27.550 USGOV
27.555 USGOV
27.560
27.565 USGOV
27.570 USGOV
27.575 USGOV (ITINERANT)
27.580
27.585 USGOV (ITINERANT)
27.590 USGOV
27.595 USGOV
27.600 USGOV
27.605 USGOV
27.610 USGOV
27.615 USGOV
27.620 MARS
27.625 USGOV
27.630 USGOV
27.635 USGOV
27.640
27.645 USGOV
27.650 USGOV
27.655 USGOV
27.660
27.665 USGOV
27.670
27.675 USGOV
27.680 68 AU MARITIME
27.685
27.690
27.695 USGOV
27.700 USGOV
27.705 USGOV
27.710
27.715 USGOV
27.720 72 AU MARITIME/USGOV
27.725 USGOV
27.730
27.735 MARS
27.740 USGOV
27.745 EXPERIMENTAL
27.750 USGOV
27.755
27.760
27.765
27.770
27.775 USGOV
27.780 USGOV
27.785 USGOV
27.790 USGOV
27.795
27.800 USGOV
27.805
27.810 USGOV
 

144inBama

Sr. Member
Apr 22, 2020
582
987
103
52
Lower Alabama
While in the Air Force (25+ years ago), worked with a guy (was on the same base) who pieced together/built a unit from a AN/PRC-77
that could transmit and receive on most all bands including miltac freqs. He got in all kinds of trouble, almost a dishonorable/ less than honorable discharge...and it wasn't the USAF that went after him, it was the wonderful FCC. The USAF only got involved when they found out he had used some spare parts form a Roland missile battery to build it.
 

secret squirrel

Lustrous Potentate
Oct 5, 2008
517
1,077
153
Washington, PA
My favorite urban legend related to channel monitoring is that I have had retired military tell me that everything said on a landline telephone is monitored by a computer at Fort Hood, TX. It has been so since the 1960s. The computer watches for key words and phrases that are related to national security. I have watched CAP downed plane drills where they triangulate the downed plan location. The Truth is Out There. Trust No One. In God we trust, All others we track.
 

144inBama

Sr. Member
Apr 22, 2020
582
987
103
52
Lower Alabama
My favorite urban legend related to channel monitoring is that I have had retired military tell me that everything said on a landline telephone is monitored by a computer at Fort Hood, TX. It has been so since the 1960s. The computer watches for key words and phrases that are related to national security. I have watched CAP downed plane drills where they triangulate the downed plan location. The Truth is Out There. Trust No One. In God we trust, All others we track.

Lookup "Stingray cell tower".....
 

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