• Re: Need Help to stop Jammer Please

    From Joe Schmoe@joeschmoe@noisponthe.net to alt.ham-radio.hf,alt.ham-radio.marketplace,alt.ham-radio.mods,alt.ham-radio.ssb on Sat Mar 17 10:14:12 2007
    From Newsgroup: alt.ham-radio.hf

    Theres obviously the sharp-shooter/marksman method!!

    No, its not what you think. Someone grabs a decent rifle, and taking
    very careful aim, can target the masts, and antennas of the offending
    station and take them out. This will at least cost him some money in
    replacing the stuff. Although it's probably illegal to discharge a
    firearm in city limits in some communities. :-) Oh well; it was just a thought!

    Keep on the trail of recording the jams, also get a group of people
    together and make sure you can triangulate everything down to his
    location so that there is absolutely no disputing his jamming practices.

    If indeed he is on the 10 meter bands then he potentially is operating completely illegally if he has no license, and if he does have a license
    then there is the forfeiture issues along with hefty fines, and possible
    jail times for the repeated infractions.

    Then local authorities need to be notified as well, and you'll need to
    see if there is any applicable local laws against the practice. The
    local FCC field office needs to be kept abreast of all activity and
    attempts to deal with the individual and the situation as a whole. More
    than likely, at some point an FCC field office rep will be coming out to
    pay the individual a very special visit. I hope it doesn't turn out to
    be another Jack Garrison like case for you!

    Cheers
    (a licensed ham - call letters withheld to stop the spamming)

    Jim Howard wrote:
    A local non-licensed station in our town is creating havoc on our 10 meter nets. We've sent tapes and letters to the FCC but to no avail. His nightly drunken jamming stops all net activities and has forced us to shut down our 10 meter FM box as well.

    Is there a schematic for a 9V battery operated device that would produce a white noise signal strong enough that if placed in the nearby vicinity of the offending station, would prevent reception of all other signals? Yes, I know it's probably not legal but it's the only way we can think of to stop the nightly jamming other then physically taking down his antennas which is impossible since he has pit bull dogs everywhere on his property.

    Thanks for your help, Jim
    techmci@yahoo.com


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  • From miki@k35454@direct.ca to alt.ham-radio.hf,alt.ham-radio.marketplace,alt.ham-radio.mods,alt.ham-radio.ssb on Sat Mar 17 11:05:52 2007
    From Newsgroup: alt.ham-radio.hf

    Whatever you do, be sure not to draw straws to see who is given the honour od going out some dark night with a pair of large diagonal
    pliers to cut his co-ax. miki.


    "Joe Schmoe" <joeschmoe@noisponthe.net> wrote in message news:12vo1ecne6hf432@corp.supernews.com...
    Theres obviously the sharp-shooter/marksman method!!

    No, its not what you think. Someone grabs a decent rifle, and taking
    very careful aim, can target the masts, and antennas of the offending
    station and take them out. This will at least cost him some money in replacing the stuff. Although it's probably illegal to discharge a
    firearm in city limits in some communities. :-) Oh well; it was just a thought!

    Keep on the trail of recording the jams, also get a group of people
    together and make sure you can triangulate everything down to his
    location so that there is absolutely no disputing his jamming practices.

    If indeed he is on the 10 meter bands then he potentially is operating completely illegally if he has no license, and if he does have a license
    then there is the forfeiture issues along with hefty fines, and possible
    jail times for the repeated infractions.

    Then local authorities need to be notified as well, and you'll need to
    see if there is any applicable local laws against the practice. The
    local FCC field office needs to be kept abreast of all activity and
    attempts to deal with the individual and the situation as a whole. More
    than likely, at some point an FCC field office rep will be coming out to
    pay the individual a very special visit. I hope it doesn't turn out to
    be another Jack Garrison like case for you!

    Cheers
    (a licensed ham - call letters withheld to stop the spamming)

    Jim Howard wrote:
    A local non-licensed station in our town is creating havoc on our 10
    meter
    nets. We've sent tapes and letters to the FCC but to no avail. His
    nightly
    drunken jamming stops all net activities and has forced us to shut down
    our
    10 meter FM box as well.

    Is there a schematic for a 9V battery operated device that would produce
    a
    white noise signal strong enough that if placed in the nearby vicinity
    of
    the offending station, would prevent reception of all other signals?
    Yes, I
    know it's probably not legal but it's the only way we can think of to
    stop
    the nightly jamming other then physically taking down his antennas which
    is
    impossible since he has pit bull dogs everywhere on his property.

    Thanks for your help, Jim
    techmci@yahoo.com




    --- Synchronet 3.21b-Linux NewsLink 1.2
  • From billie0w@bilwalsh@swbell.net to alt.ham-radio.hf,alt.ham-radio.marketplace,alt.ham-radio.mods,alt.ham-radio.ssb on Sun Mar 18 18:55:48 2007
    From Newsgroup: alt.ham-radio.hf

    On Mar 17, 2:05 pm, "miki" <k35...@direct.ca> wrote:
    Whatever you do, be sure not to draw straws to see who is given the honour od going out some dark night with a pair of large diagonal
    pliers to cut his co-ax. miki.


    Just a simple straight pin through the coax should be sufficient.

    --- Synchronet 3.21b-Linux NewsLink 1.2
  • From Porgy Tirebiter@biteme@gmail.com to alt.ham-radio.hf,alt.ham-radio.marketplace,alt.ham-radio.mods,alt.ham-radio.ssb on Mon Mar 19 02:37:37 2007
    From Newsgroup: alt.ham-radio.hf


    "billie0w" <bilwalsh@swbell.net> wrote in message news:1174269348.299229.72720@p15g2000hsd.googlegroups.com...
    On Mar 17, 2:05 pm, "miki" <k35...@direct.ca> wrote:
    Whatever you do, be sure not to draw straws to see who is
    given
    the honour od going out some dark night with a pair of large diagonal
    pliers to cut his co-ax. miki.


    Just a simple straight pin through the coax should be sufficient.

    Coax.....why bother. If your going to cut anything, you cut the NEUTRAL wire to the house.
    Then wait for the fireworks to begin hahahahahaha...



    --- Synchronet 3.21b-Linux NewsLink 1.2
  • From billie0w@bilwalsh@swbell.net to alt.ham-radio.hf,alt.ham-radio.marketplace,alt.ham-radio.mods,alt.ham-radio.ssb on Mon Mar 19 17:54:19 2007
    From Newsgroup: alt.ham-radio.hf

    On Mar 18, 9:37 pm, "Porgy Tirebiter" <bit...@gmail.com> wrote:
    "billie0w" <bilwa...@swbell.net> wrote in message

    news:1174269348.299229.72720@p15g2000hsd.googlegroups.com...> On Mar 17, 2:05 pm, "miki" <k35...@direct.ca> wrote:
    Whatever you do, be sure not to draw straws to see who is
    given
    the honour od going out some dark night with a pair of large diagonal
    pliers to cut his co-ax. miki.

    Just a simple straight pin through the coax should be sufficient.

    Coax.....why bother. If your going to cut anything, you cut the NEUTRAL wire to the house.
    Then wait for the fireworks to begin hahahahahaha...


    Well, just for starters, next time he keys up his radio it blows the
    finals. Working into a dead short don't you know.. He automatically
    figures it's something in his radio, of course, so he gets out his
    backup and tries again. Blows the finals in that one also. Might take
    three or four rigs before he figures out it's his coax and has to
    replace it all. You know, that ole thing about a needle in a haystack, well..... coax in this case.

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  • From Porgy Tirebiter@biteme@gmail.com to alt.ham-radio.hf,alt.ham-radio.marketplace,alt.ham-radio.mods,alt.ham-radio.ssb on Mon Mar 19 18:45:48 2007
    From Newsgroup: alt.ham-radio.hf


    "billie0w" <bilwalsh@swbell.net> wrote in message news:1174352059.914305.70110@e65g2000hsc.googlegroups.com...
    On Mar 18, 9:37 pm, "Porgy Tirebiter" <bit...@gmail.com> wrote:
    "billie0w" <bilwa...@swbell.net> wrote in message

    news:1174269348.299229.72720@p15g2000hsd.googlegroups.com...> On Mar 17,
    2:05 pm, "miki" <k35...@direct.ca> wrote:
    Whatever you do, be sure not to draw straws to see who is
    given
    the honour od going out some dark night with a pair of large diagonal
    pliers to cut his co-ax. miki.

    Just a simple straight pin through the coax should be sufficient.

    Coax.....why bother. If your going to cut anything, you cut the NEUTRAL
    wire
    to the house.
    Then wait for the fireworks to begin hahahahahaha...


    Well, just for starters, next time he keys up his radio it blows the
    finals. Working into a dead short don't you know.. He automatically
    figures it's something in his radio, of course, so he gets out his
    backup and tries again. Blows the finals in that one also. Might take
    three or four rigs before he figures out it's his coax and has to
    replace it all. You know, that ole thing about a needle in a haystack, well..... coax in this case.

    <SIGH> it REALLY doesn't work that way in real life. a shorted feedline
    wont always blow the finals.A fairly smart operator will notice the signals are weaker, a lot of transmitters throttle back into high VSWR's.
    AND..if the short is close to a 1/4 wave the part of the cable will actually load up just fine.You see (if you knew transmission line theory) it's NOT a "dead short"..but actually a complex transmission line. DC wise..yes..its a short..but then again SO ARE A LOT OF SHUNT FED ANTENNAS....Modern transmission line is SOLID core...look up Belden 9914 or LMR-400..can you
    push a straight pin thru that?

    Try to learn some real theory.....you might be surprised.



    --- Synchronet 3.21b-Linux NewsLink 1.2
  • From Dave Oldridge@doldridg@leavethisoutshaw.ca to alt.ham-radio.hf,alt.ham-radio.marketplace,alt.ham-radio.mods,alt.ham-radio.ssb on Wed Mar 21 04:38:22 2007
    From Newsgroup: alt.ham-radio.hf

    "Porgy Tirebiter" <biteme@gmail.com> wrote in news:RHmLh.8413$yW.3749@newssvr11.news.prodigy.net:


    "billie0w" <bilwalsh@swbell.net> wrote in message news:1174269348.299229.72720@p15g2000hsd.googlegroups.com...
    On Mar 17, 2:05 pm, "miki" <k35...@direct.ca> wrote:
    Whatever you do, be sure not to draw straws to see who
    is
    given
    the honour od going out some dark night with a pair of large
    diagonal pliers to cut his co-ax. miki.


    Just a simple straight pin through the coax should be sufficient.

    Coax.....why bother. If your going to cut anything, you cut the
    NEUTRAL wire to the house.
    Then wait for the fireworks to begin hahahahahaha...

    I heard a tale once where some CBers attached a rope to a man's tower and
    to the trailer hitch on his pickup, then put a bag of dogshit on his
    porch and knocked on the door. He opened it, put out the fire while they jeered then when they drove off, he jumped in the pickup and pulled his
    tower down.
    --
    Dave Oldridge+
    ICQ 1800667
    --- Synchronet 3.21b-Linux NewsLink 1.2
  • From Dave Oldridge@doldridg@leavethisoutshaw.ca to alt.ham-radio.hf,alt.ham-radio.marketplace,alt.ham-radio.mods,alt.ham-radio.ssb on Wed Mar 21 04:39:19 2007
    From Newsgroup: alt.ham-radio.hf

    "billie0w" <bilwalsh@swbell.net> wrote in news:1174352059.914305.70110@e65g2000hsc.googlegroups.com:

    On Mar 18, 9:37 pm, "Porgy Tirebiter" <bit...@gmail.com> wrote:
    "billie0w" <bilwa...@swbell.net> wrote in message

    news:1174269348.299229.72720@p15g2000hsd.googlegroups.com...> On Mar
    17, 2:05 pm, "miki" <k35...@direct.ca> wrote:
    Whatever you do, be sure not to draw straws to see
    who is
    given
    the honour od going out some dark night with a pair of large
    diagonal pliers to cut his co-ax. miki.

    Just a simple straight pin through the coax should be sufficient.

    Coax.....why bother. If your going to cut anything, you cut the
    NEUTRAL wire to the house.
    Then wait for the fireworks to begin hahahahahaha...


    Well, just for starters, next time he keys up his radio it blows the
    finals. Working into a dead short don't you know.. He automatically
    figures it's something in his radio, of course, so he gets out his
    backup and tries again. Blows the finals in that one also. Might take
    three or four rigs before he figures out it's his coax and has to
    replace it all. You know, that ole thing about a needle in a haystack, well..... coax in this case.

    Actually, most GOOD radios will just shut down into the bad load. My
    antenna analyzer would quickly find the pin.
    --
    Dave Oldridge+
    ICQ 1800667
    --- Synchronet 3.21b-Linux NewsLink 1.2
  • From K7DFA@K7DFA7@gmail.com to alt.ham-radio.hf,alt.ham-radio.marketplace,alt.ham-radio.mods,alt.ham-radio.ssb on Mon Apr 2 21:56:05 2007
    From Newsgroup: alt.ham-radio.hf

    On Mar 19, 8:45 pm, "Porgy Tirebiter" <bit...@gmail.com> wrote:
    "billie0w" <bilwa...@swbell.net> wrote in message

    news:1174352059.914305.70110@e65g2000hsc.googlegroups.com...



    On Mar 18, 9:37 pm, "Porgy Tirebiter" <bit...@gmail.com> wrote:
    "billie0w" <bilwa...@swbell.net> wrote in message

    news:1174269348.299229.72720@p15g2000hsd.googlegroups.com...> On Mar 17,
    2:05 pm, "miki" <k35...@direct.ca> wrote:
    Whatever you do, be sure not to draw straws to see who is >> >> given
    the honour od going out some dark night with a pair of large diagonal >> >> pliers to cut his co-ax. miki.

    Just a simple straight pin through the coax should be sufficient.

    Coax.....why bother. If your going to cut anything, you cut the NEUTRAL
    wire
    to the house.
    Then wait for the fireworks to begin hahahahahaha...

    Well, just for starters, next time he keys up his radio it blows the finals. Working into a dead short don't you know.. He automatically
    figures it's something in his radio, of course, so he gets out his
    backup and tries again. Blows the finals in that one also. Might take
    three or four rigs before he figures out it's his coax and has to
    replace it all. You know, that ole thing about a needle in a haystack, well..... coax in this case.

    <SIGH> it REALLY doesn't work that way in real life. a shorted feedline
    wont always blow the finals.A fairly smart operator will notice the signals are weaker, a lot of transmitters throttle back into high VSWR's.
    AND..if the short is close to a 1/4 wave the part of the cable will actually load up just fine.You see (if you knew transmission line theory) it's NOT a "dead short"..but actually a complex transmission line. DC wise..yes..its a short..but then again SO ARE A LOT OF SHUNT FED ANTENNAS....Modern transmission line is SOLID core...look up Belden 9914 or LMR-400..can you push a straight pin thru that?

    Try to learn some real theory.....you might be surprised.- Hide quoted text -

    - Show quoted text -

    Guys,
    The problem with a SINGLE straight pin through the coax is
    just as described above, it can be real difficult to "short" RF (and
    9914 or LMR-400 are IMMUNE to straight pins), 'course this neanderthal
    is prob'ly just usin' RG-8U. Multiple pins in the same coax, however,
    can cause real problems, esp. with the older rigs/amplifiers. A close
    friend of mine tried this once, and the results (on a deserving mark)
    were SPECTACULAR. His mother tried for half a day to raise him on an
    ever fading radio, until she burned up the radio and the[illegal] (bi-
    linear) amplifier. 'course that was in the early 90's, the coax was
    regular RG-8U, and the radio didn't "throttle back" when the final
    amplifier "saw" the mismatched load.'Course ya gotta make sure to
    leave NO TRACES of having been there, and the pit bulls pose a problem
    with access to the feedline(s).

    These days (being a licensed Amateur Radio Operator), (my
    friend became one, too), I'd prob'ly just go the legal route, with
    special emphasis on attempting to use the good offices of my local
    Senators to place such pressure on the FCC that they could only ignore
    the situation @ peril of their job(s)!!!

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