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Author Topic: Can You Really Locate That Jammer?  (Read 17955 times)

W6WBJ

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Can You Really Locate That Jammer?
« Reply #15 on: May 01, 2007, 01:28:09 PM »

I'm still on the air every day!  Don't you just LOVE IT?!
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KB5DPE

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Can You Really Locate That Jammer?
« Reply #16 on: May 02, 2007, 12:00:08 AM »

"On April 3, 2007, Riley Hollingsworth sent me a letter granting me perpetual operating authority. I never need to renew my license again. Isn't it WONDERFUL?!"

I'll bet you've got a bridge you want to sell, too.  Even if he wanted to, which I'm sure he doesn't, Riley Hollingsworth doesn't have the authority to do that.  If such a thing were ever to be done, it would have to be granted by Congress and it would be for someone who made a MAJOR contribution to the state of the art or for the national benefit; not for someone who's contribution to amateur radio has yet to be found.  You really need to take a good look in the mirror and, this time, open your eyes.
Tom
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KB5DPE

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Can You Really Locate That Jammer?
« Reply #17 on: May 02, 2007, 12:13:13 AM »

From your callsign lookup, re. tube audio: "Nothing sounds as good as tubes!"

I guess, if you like the sound of distortion!
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THERAGE

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Can You Really Locate That Jammer?
« Reply #18 on: May 02, 2007, 05:17:13 PM »

RE: Can You Really Locate That Jammer?  Reply  
by W6WBJ on May 1, 2007  Mail this to a friend!  
On April 3, 2007, Riley Hollingsworth sent me a letter granting me perpetual operating authority. I never need to renew my license again. Isn't it WONDERFUL?!  
 
What a load of Bravo Sierra. Billy, look in the mirror once more. You're an IDIOT!!!!
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N6JSX

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Can You Really Locate That Jammer?
« Reply #19 on: May 21, 2007, 10:45:02 AM »

There are to very different types of T Hunting HF and VHF/UHF/SHF.

Quick answer: 2m is YES I CAN and I HAVE.

HF is do-able and has far less reflections. The problem with HF is the distance and beam size & width (calibration). For local HF you can use a loop due to the strong ground wave signal. But for long distant tuner-upper LIDs it is far harder. Sure you may be able to get a few HAMs over a few States to triangulate but unless their is a HF T hunter in the area - what did it get you. This triangulation could go over many states taking hours of driving witht an unknown next TX signal.

Then their is the more common VHF 6m/2m T Hunting. 6m is difficult due to the physical beam size and loops are not not usable on weak signals.

2m's is where all the repeater action and the home of most T Hunting/Jammers. I've found stuck transmitters and KPC3 TNC's that would stick the TX - these are easy constant signal gimmy finds. I WILL tell you I've nailed a number of jammers/LIDs including the infamous WB6JAC, a few Rose Parade jammers, and  Catalina Swap Net jammers - to name a few. I've hunted for the FCC and competed agaisnt the FCC to see who was better - the two mobile HAMs each in their own vehicle beet the two FCC engineers by 30 plus minutes - the FCC Chief (HAM) was the simulating being a jammer (on 2m simplex).
Jammer hunting is hard - due to the unknown duration of the LID transmission - you must quickly triangulate and drive to the area to sit and wait for the next transmission that may or may not happen. I will boldly state I will find any 2m FM repeater jammer signal with a reasonable duty cycle.

Now comes 220/440 T hunting, these start to become more difficulty due to the excessive signal reflections/muti-path that increases with freqency. I've caught 220 and 440 jammers but it took much work with some calculated luck.

I've had no experiance in 900, 1.2G, or 2.4G. I suspect it is very very hard. Antennas may be small but the reflections will come from anything and everything and if you know what a bounce can do then you know the signals will have multiple polarizations too.

I'm proud to say I've mobile T Hunted with the "Best" - those being Southern California T Hunters. I've won and hid many many T Hunts in California - competition is often down to a 10th of a mile or even seconds. I found Milwaukee T Hunters to be very skilled too, but there hunts do not have the severe mutli-path compared to CA hides.

I just wish I could get Ohio HAMs interensted in T Hunting. My closest regular hunt is 2.5 hours south in the Cincinnati area.

LA FCC RDF Aux member
LAPD Olymics special RDF unit member
Past - LA OOC
Past - WI OOC
Owner - http://groups.yahoo.com/group/RDF-USA

The real question should be, "NOW that I found a foul mouth Jammer what can be done?" I busted an Orange County CA HAM/LID over a dozen times in 1986/7/8, created case files, sent OO Notices (he touted as merrit badges). He even jammed T Hunts as he knew (and we discovered) the LA FCC would do NOTHING. The LA area T Hunting OO's gave up and I resigned as OOC due to an inept SM/HQ and total lack of any FCC support/action.

K8MHZ

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Can You Really Locate That Jammer?
« Reply #20 on: May 30, 2007, 05:38:26 PM »

Billy,

You are toast and you know it.

When it finally happens I suspect nary a tear will be shed lamenting your absence.

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K4RAF

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Can You Really Locate That Jammer?
« Reply #21 on: September 20, 2007, 09:36:22 AM »

"Number of Near-Field Intercepts that Riley Hollingsworth has done since he assumed his position in 1998: Zero!"

Uh Bill,

!!!WRONG!!!

Look up KA2YBP, who was jamming the SWL Net on 7240 every Sunday for at least 13 weeks. The FCC Fielders knocked on his door & caught him RED-HANDED on October 18, 1998 at 10:13AM, using an AM radio to jam 7240LSB with a full gallon...

I know this because he was in Waretown NJ & I was a NCS for the SWL Net in Lakewood NJ. We got a confirmation they had caught him. He owned up to it & Riley had his license suspended for 3 years. Now he is W4YBP but still in NJ. Go figure but he is still a habitual jammer & he knows it! He did get caught by near-field...
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WE0Z

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Can You Really Locate That Jammer?
« Reply #22 on: November 06, 2007, 03:20:47 AM »

I am always amused when this subject comes up and the fact that the ARRL's bulletin schedule is always villified. The has been no bigger active champion for amatuer radio than the ARRL. Those that pay dues to be members also contribute to this same promotion of our hobby and to protect us from encroachment by corporate frequency raiders etc. Everyone knows the times of these bulletins and have over the years used them for what they are intended from time to time but yet we are so quick to villify them as if they are a renegade frequency hog and serve no useful purpose.

There are better targets to critize than biting the hand that has fed us so well for so long.
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