RD>> It is something I put together after 4 months straight of jamming and
 RD>> crap on  the local repeaters here. It helped to nail one pain in the
 RD>> butt and put fear into several others.
 II> Well deserved!  (Hopefully it went all the way to terror!)  :-}
 Not really...
 If you have seen the news then you know what has been going on up here with 
the freezing rain storms.
 During this emergency we have had some idiot playing games with a repeater 
y
blowing packet transmissions and DTMF tones into the repeater during 
emergency nets we have going 24 hours a day.
 I hope this idiot gets frost-bite from lack of hydro and heat and looses all 
their fingers.
 This was NOT the time nor the place to be an idiot and this jack-ass  had to 
prove just how much of an idiot they were by attempting to jam the nets.
 RD>> Now with APRS DF-ing is easier to do with one stationary point
 RD>> and several  mobiles using the APRS software to nail the twit.
 II> That should be a more efficent way of tracking them.  There are a few
 II> Hams in this area that are playing with GPS and APRS, but I think the
 It would if there were enough people willing ot take the time to learn how 
to use the APRS software to do DF-ing.
 Sometime in the spring we must get a group together and play with it more.
 RD>> I'm still playing with the APRS software,but only for the DF part of
 RD>> it for now as I do not have a GPS unit yet.
 II> Prices are coming down.  The first ads I saw for them had price tags of
 II> several hundred dollars.  Recently I saw one for, (IIRC), around 
25.00.
 GPS units here with RS-232 ports are in the $299 Canadian range and up.
 Cost depends on what features you want or need the unit to have,and how much 
money you have to spend on a unit.
 II>> Strange thing happened about a week ago, though.  I happened to be
 II>> listening around to out of town repeaters, and I heard someone local
 II>> trying to jam a conversation on the OUTPUT of a machine perhaps 40
 RD>> Sounds like you have a stolen or "found" radio in the hands of a
 RD>> someone who has no idea of how a repeater really works.
 II> This is quite possible in this case, but that is not how our local 
ammer
 II> works.  (It could be a copy-cat).  The main jammer hereabouts has a dual
 II> band, probably a mobile, with crossband repeat, and has used it to lock
 II> up both the 444.175 and the 147.06 machnes by crossband repeating when
 Ok...
 If they like to cross band the two repeaters check the inputs of the 
repeaters
for the output audio of the other repeater being cross-banded.
 Go after THAT signal on the input and nail them.
 If they are doing full crossband repeat then they can be foiled by changing 
the length of the courtesy tone and tail drop time on the repeater.
 A longer tone and tail-drop interval can mess their crossband up as the 
radio has to have no signal input before it can switch to the other band to 
crossband it. This feature is in the Kenwood TM732 and 733 series 
dual-banders.
 If all they do is crossbanding the -output- of a repeater into the -input- 
of another then it is easier to go after them as they are the only source of 
the
signal on the input.
 SOMETHING TO BE AWARE OF!!!
 A trick done here a few months ago was someone was re-transmitting a simplex
conversation from 2m to 70cm for -OTHERS- to recieve on 440 and re-transmit 
o
the input of several 2m repeaters at the same time.
 Lasted for about 20 minutes and drew flack from those repeaters that had the 
one-way audio blasting their conversations and one net.
 This presented several sources for the incoming signals over several 
different repeater input frequencies.
 Tricky to go after,but it couldbe done by isolating one of the signals and 
going after them only. When caught they will surely chicken out and turn in 
their buddies involved to avoid taking the full blame.
 RD>> He/she/it has probably figured that since they can only hear one of
 II> Actually, both sides were coming in equally strong, (being a repeater
 II> output.)  IMO, the average CBer doesn't have the brains to pound sand
 II> down a rat hole when it comes to the technology which Hams take for
 II> granted.
 Agreed Ivy, but that is the -average- cber.
 Some of the jammers I ahve seen are VERY smart and know exactly what they 
are doing to jam a signal on an input.
 Many of the things I've seen done to jam are old 11m tricks done many years 
ago as jamming techniques.
 And some are even more creative and obviously done by an amateur who knows
far more than an average cber.
 RD>> Probably scared the crap right out of them when they heard someone
 RD>> else on  their "private" channel talking right at them.
 II> Interesting question: What happens if the FCC hears about a legitimate
 II> Ham using AM to tell a CBer to give a call... in the CW segment of 10?
 II> I would be more inclined to load up all the power I had, point the beam
 II> right down the children's throats, and start calling CQ on CW.  If they
 So would I if I were ticketed for 10m.
 Local amateurs here have taken to holding a daily cw practice session on 10m
in the evenings around 28.020 to 28.050 to chase of would-be pirates.
 A few hundred watts of beep-beep usually gets rid of them fast.
 II> Chickenbander calls 'em up and says, "Somebody was interfering with our
 II> conversation on the radio."  "What frequency?" sez Mr. FCC.  The
 II> birdbrain replies, "28.050," (or Channel 56 or whatever it would be).
 II> "And what's your callsign?"  "This is Skipmaster," replies the dumbo.
 II> "Ok, what's your address... We'll be right over." replies the FCC
 Then if they are DUMB enough to call your FCC for that situation they will 
get what they deserved.
 RD>> They seem to think they are in a "private" frequency area on their
 RD>> radios that no-one else has and it scares them when someone DOES show
 II> I'm surprised that they weren't challanged for callsigns as soon as they
 II> showed up on the frequency!
 They were,but moved to the second crystal they had in their radios!
 Took a few days to find the new freq and get rid of them.
 So far they have not tried to use those two freqs again and the IOC (our 
CC)
is aware of their activities.
 RD>> The leftover 30 percent have an axe to grind with one particular
 RD>> group or one person and trash the repeater only when their favourite
 RD>> traget is on the air. (commonly known as: get the local bucket-mouth
 RD>> off the air)
 II> Says the ratchet-jaw, right?  (NOT talking about you!)   :-}
 Our local bucket-mouth was told point-blank to shut-up when he appeared on 
the local emergency repeater net and wanted to start a long-winded 
blabber-fest.
 He wnet to another repeater (the BACKUP emergency net one!) and started up 
there to be told the same thing...shut-up.
 He ended up on a THIRD repeater moaning and groaning about not being able to 
use the autopatch or talk to anyone to let them know he is ok.
 Makes you wonder what orrifice his head was in for the past week!
 II> Seriously, though, I think our principal antaginist is a member of the
 II> 30% group.  He/she/it seems to have two axes to grind: One particular
 RD>> 100 percent of those caught red faced / handed DENY doing
 RD>> the jamming and may/will attempt to lay the blame on someone else
 RD>> entirely.
 II> Of course!  If they are errant CBers they just know that they are in the
 II> wrong and will try to avoid the consequences, but if they are licensed
 II> Hams, they KNOW how stiff the consequences can be!  (Like a $2,000 fine
 Here the consequences may be fine,jail or both under the Canadian Radio Act.
 More likely the consequences will be a fat lip,black-eye and a busted radio.
 Especially now during this emergency...
--- GoldED 2.42.G1219
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