Any knowledgeable advice wanted for transmitter

[John M.]

I am NOT trying to build a radar detector NOR am I trying to build a
radar scrambler! I want to build some sort of portable (powered by 9v
battery)... low-emittance but effective 'radio wave transmitter' that
I can use to set other people's radar detectors off. I have seen
other people use these devices on the interstate before and I couldn't
help but relish in the sight of the guy flying by doing 90Mph suddenly
hitting his breaks because his detector chirped. It can't be too hard
to make one of these devices from some Radioshack parts, as I have
seen several pocket sized varieties for sale on the internet that
unfortunately lacked any instructions. I just don't know how you
would produce 9ghz - 30ghz waves from a portable device, if it is even
possible. If you have any knowledge in this area your help would
be appreciated! Thank you.

 

[Don Pearce]

I am NOT trying to build a radar detector NOR am I trying to build a
radar scrambler! I want to build some sort of portable (powered by 9v
battery)... low-emittance but effective 'radio wave transmitter' that
I can use to set other people's radar detectors off. I have seen
other people use these devices on the interstate before and I couldn't
help but relish in the sight of the guy flying by doing 90Mph suddenly
hitting his breaks because his detector chirped. It can't be too hard
to make one of these devices from some Radioshack parts, as I have
seen several pocket sized varieties for sale on the internet that
unfortunately lacked any instructions. I just don't know how you
would produce 9ghz - 30ghz waves from a portable device, if it is even
possible. If you have any knowledge in this area your help would
be appreciated! Thank you.

Hey, maybe somebody could stand on a bridge and throw a brick through
your front window while you are doing ninety. That would make you jump
on your brakes, and added to that it would be really funny -
particularly if it made you crash and put you in a wheelchair for
life.

You would come back here and tell us all about it wouldn't you? We
would appreciate the laugh.

Now go away and fester in your own poisonous little pit of hate.

Have a nice day.

d

_____________________________

http://www.pearce.uk.com

 

[James Meyer]

....then Don said:

Now go away and fester in your own poisonous little pit of hate.

Have a nice day.

d

Hi Don. I have one of those little black boxes that set off radar
detectors and I'm not festering in a pit of hate. I'm not too sure about you
though.

For John M.

There is a microwave transistor in my BB (black box). I doubt that RS
ever sold any of those. The circuit it goes in, like most microwave stuff, is
not fully capable of being described with a simple schematic diagram. Microwave
stuff is 25% electronic and 75% mechanical. Get either wrong and nothing
happens.

Buy a kit. Or invest several years learning microwave circuit
construction techniques. The choice is up to you.

Jim

 

[John M.]

Thank you so much!...for your "knowledgeable" advice 'Big D'. If
you are ever in the United States be sure to e-mail me and I'll be
glad to meet you somewhere to let you back that statement up. I think
if you drove over here a couple of times you'd understand my concern.
However, I can't blame you for sitting behind your computer and
festering in your own narrow minded 'UK'-ness. Cordially, John
M.

 

[Don Pearce]

Thank you so much!...for your "knowledgeable" advice 'Big D'. If
you are ever in the United States be sure to e-mail me and I'll be
glad to meet you somewhere to let you back that statement up. I think
if you drove over here a couple of times you'd understand my concern.
However, I can't blame you for sitting behind your computer and
festering in your own narrow minded 'UK'-ness. Cordially, John
M.

Sure I can understand your concern. If it amuses you to force
motorists to jam their brakes on in a state of panic - then that must
obviously take precedence over their continued safety. And yes, I've
driven in the States many more than a couple of times - whatever that
has to do with anything.

d

_____________________________

http://www.pearce.uk.com

 

[Active8]

On 11 Jan 2004 02:15:48 -0800, [email protected] said...

I am NOT trying to build a radar detector NOR am I trying to build a
radar scrambler! I want to build some sort of portable (powered by 9v
battery)... low-emittance but effective 'radio wave transmitter' that
I can use to set other people's radar detectors off. I have seen
other people use these devices on the interstate before and I couldn't
help but relish in the sight of the guy flying by doing 90Mph suddenly
hitting his breaks because his detector chirped. It can't be too hard
to make one of these devices from some Radioshack parts, as I have
seen several pocket sized varieties for sale on the internet that
unfortunately lacked any instructions. I just don't know how you
would produce 9ghz - 30ghz waves from a portable device, if it is even
possible. If you have any knowledge in this area your help would
be appreciated! Thank you.

I think if you hack a Radar Detector for the Gunplexer (or buy one)
and check out whatever info from M/A Comm and the amateur sites you
can find, you should be able to cobble something together without
redesigning the brick I saw a radar detector tester once, too.
It was just a transistor oscillator with a resonant PCB line.
Range? Dunno. Source? Dunno. Google? Probably.

 

[Active8]

....then Don said:

Now go away and fester in your own poisonous little pit of hate.

Have a nice day.

d

Hi Don. I have one of those little black boxes that set off radar
detectors and I'm not festering in a pit of hate. I'm not too sure about you
though.[/QUOTE]

Since he mentioned a brick, though...

When I was maybe 8 or so, I went with Granny to the relatives for
whatever and some kid threw a rock off an overpass and it hit the
hood of the car. Now Granny has always jumped at the site of her
own shadow and never should have been allowed to drive in the first
place (white knuckles kinda driver.) It freaked her out pretty
good. She didn't see the kids and maybe not even the overpass.

 

[James Meyer]

Since he mentioned a brick, though...

When I was maybe 8 or so, I went with Granny to the relatives for
whatever and some kid threw a rock off an overpass and it hit the
hood of the car. Now Granny has always jumped at the site of her
own shadow and never should have been allowed to drive in the first
place (white knuckles kinda driver.) It freaked her out pretty
good. She didn't see the kids and maybe not even the overpass.

A few miles north of here on the interstate a couple of "kids" dropped a
big rock off an overpass. It killed the lady driving the car it hit. AFAIK
they never caught the "kids".

There's a big difference between murder and making a radar detector
beep. There are some places where the highway patrol sets up radar transmitters
all by themselves for the express purpose of triggering detectors to slow idiots
down.

Jim

 

[Mac]

I am NOT trying to build a radar detector NOR am I trying to build a
radar scrambler! I want to build some sort of portable (powered by 9v
battery)... low-emittance but effective 'radio wave transmitter' that
I can use to set other people's radar detectors off. I have seen
other people use these devices on the interstate before and I couldn't
help but relish in the sight of the guy flying by doing 90Mph suddenly
hitting his breaks because his detector chirped. It can't be too hard
to make one of these devices from some Radioshack parts, as I have
seen several pocket sized varieties for sale on the internet that
unfortunately lacked any instructions. I just don't know how you
would produce 9ghz - 30ghz waves from a portable device, if it is even
possible. If you have any knowledge in this area your help would
be appreciated! Thank you.

Can't you just buy a radar gun?

Mac

 

[Michael A. Terrell]

I think if you hack a Radar Detector for the Gunplexer (or buy one)
and check out whatever info from M/A Comm and the amateur sites you
can find, you should be able to cobble something together without
redesigning the brick I saw a radar detector tester once, too.
It was just a transistor oscillator with a resonant PCB line.
Range? Dunno. Source? Dunno. Google? Probably.

Modify an old microwave oven. You'll have plenty of range! ;-) Of
course it would wipe out anything on 2.4 GHz including cordless phones,
wireless lans, security systems, wireless TV cameras, etc.

--
We now return you to our normally scheduled programming.

Take a look at this little cutie! ;-)
http://home.earthlink.net/~mike.terrell/photos.html

Michael A. Terrell
Central Florida

 

[Paul Burridge]

A few miles north of here on the interstate a couple of "kids" dropped a
big rock off an overpass. It killed the lady driving the car it hit. AFAIK
they never caught the "kids".

Happens in England all the time. Symptomatic of a sick society...:-(

 

[Rene Tschaggelar]

I am NOT trying to build a radar detector NOR am I trying to build a
radar scrambler! I want to build some sort of portable (powered by 9v
battery)... low-emittance but effective 'radio wave transmitter' that
I can use to set other people's radar detectors off. I have seen
other people use these devices on the interstate before and I couldn't
help but relish in the sight of the guy flying by doing 90Mph suddenly
hitting his breaks because his detector chirped. It can't be too hard
to make one of these devices from some Radioshack parts, as I have
seen several pocket sized varieties for sale on the internet that
unfortunately lacked any instructions. I just don't know how you
would produce 9ghz - 30ghz waves from a portable device, if it is even
possible. If you have any knowledge in this area your help would
be appreciated! Thank you.

It is a great idea to mass produce microwave oscillators.
Just imagine the next hightech war wherever, when there suddenly
are millions of radar targets.

Rene

 

[Active8]

A few miles north of here on the interstate a couple of "kids" dropped a
big rock off an overpass. It killed the lady driving the car it hit. AFAIK
they never caught the "kids".

There's a big difference between murder and making a radar detector
beep. There are some places where the highway patrol sets up radar transmitters
all by themselves for the express purpose of triggering detectors to slow idiots
down.

Jim

And in other places they hide near repeater towers where people are
used to false detections.

 

[John M.]

Hmmm.... I'm not sure what you meant by the line: "...that must
obviously take precedence over their continued safety." I would
hardly call allowing a person to speed the continuance of something
safe. Thanks for your useless input to this forum, "d".

 

[Don Pearce]

Hmmm.... I'm not sure what you meant by the line: "...that must
obviously take precedence over their continued safety." I would
hardly call allowing a person to speed the continuance of something
safe. Thanks for your useless input to this forum, "d".

Ah you are one of those poor benighted souls who cannot think beyond
the knuckle-dragging level of "speed = dangerous". I do hope you don't
try to handle dangerous machinery yourself?

d

_____________________________

http://www.pearce.uk.com

 

[Rich Grise]

Frankly, people who "jam their brakes on in a state of panic" at the
beep of a radar detector, at a speed of 90 MPH, really have no
business driving in the first place.

Cheers!
Rich

 

[GPG]

When speed radar was 3cm (I used to calibrate and certify them),
I had this dream of using a radar magnetron to blow the mixer
diodes out......

 

[Mark Zenier]

Frankly, people who "jam their brakes on in a state of panic" at the
beep of a radar detector, at a speed of 90 MPH, really have no
business driving in the first place.

Cheers!
Rich

Here's some classic Usenet that I dug out of my archive:

Mark Zenier [email protected] Washington State resident

From ssc!ole!sumax!news.u.washington.edu!ogicse!uwm.edu!cs.utexas.edu!uunet!rsiatl!jgd Sat May 30 12:12:03 1992
Xref: ssc rec.radio.amateur.policy:1161 rec.autos:62315 rec.autos.driving:8489
Path: ssc!ole!sumax!news.u.washington.edu!ogicse!uwm.edu!cs.utexas.edu!uunet!rsiatl!jgd
From: [email protected] (John De Armond)
Newsgroups: rec.radio.amateur.policy,rec.autos,rec.autos.driving
Subject: Trolling for Tail Lights: The Game (was Re: Ham Use of X and K band)
Message-ID: <[email protected]>
Date: 30 May 92 07:48:44 GMT
Organization: Dixie Communications Public Access. The Mouth of the South.
Lines: 292

[email protected] (Alan Bloom) writes:

Now Al, don't be retentive. There is another perfectly legit and
immensely fun sporting application of A1 emissions on X & K band. This sport
even has a name, a set of rules and a budding guild for practitioners of
the art.

That art is, of course, Trolling for Tail Lights or Tactical Applications
of Negative Speed Insertion. I am proud to be a founding member of the
National TFT Guild

Here are the rules. Use and Enjoy!:

------
Trolling for Taillights (and related Effluvia)
Draft 3.0 (05/25/92)


Trolling For Taillights (TFT) is becoming one of America's fastest
growing highway participatory sports. It is loads of fun, requires
only modest equipment and achieves justice on the highway. And it is
Good Clean Fun (TM) at least until the target has to clean his drawers.

TFT refers, of course, to the sport of communicating to other drivers
by stimulating their radar detectors and observing and recording their
responses. Only simple radio equipment is needed: an old microwave
burglar alarm will do fine. More sophisticated equipment such as
a Kustom KR-11 Instant On Moving Police Radar will yield better and more
consistent results. Nontheless $10 worth of Gunn Oscillator will
achieve quite adequate scores if the proper skills are practiced.

How it Works:

Think of RADAR as a Tractor Beam. It's a vector-subtraction
ray, a negative speed insertion device: If the target is ahead,
it sucks them back toward you; if they're behind, it pushes them
away. One can also think of it as a high-tech version of the
American Indian game of counting coup. In short, think of it
as evolution in action, as in Road Warrior.

Safety First:

Because the target of your trolling may react erratically, certain basic
safety rules are necessary.

* No trolling of vehicles with less than two car lengths of clearance
behind and in the lane to either side (if applicable.) This allows
for an Unindended Deceleration Transient (UDT.)

* No trolling of Texas Cadillacs (pickemup trucks.) with large dogs
standing on the toolbox. The dog might not like it.

* A minimum of 1/10 mile clearance between you and the target is
required if the target is placarded with any of the following:

"Flammable"
"Explosive"
"High Explosive"
"Radioactive"
"Nuclear Weapon" (2/10 mile for this one.)

Special Awards:

It is desirable to recognize outstanding fishermen in our ranks. Accordingly
the following special award catagories are established:

* The Million Dollar Club - A million total points.

* The Kilobrake Trophy - Causing one thousand Brake applications.

* 1000 Points of Light - Causing the most simultaneous brake lights
in any one year.

* Worked All States (WAS) - Snagging a trophy catch originating from each
of the 50 states.

* Golden Jam Award - Causing the largest traffic jam as a result of
trolling WITHOUT involving a wreck in any one year.

If you think you qualify, contact the management for your award. Video
tape is highly recommended for scoring purposes and for documenting
when the cop mistakes your head for a baby Harp Seal.

Rules of Engagement:

Trolling posture

Proper trolling posture is in the right or next to right lane with
the Radar at the ready but out of sight and de-energized. Speed
should be at or slightly below the speed limit.

Eligible Targets

An eligible target is any vehicle that meets the above safety
specifications and has a radar detector.

Target Selection

A target proceeding at greater than 20 mph over the posted speed
limit is the most fertile in terms of variety of actions and presents
the best odds of winning Adders and Multipliers.

Firing techniques

Forward - Wait until the target is a few car lengths in front of you
and fire phasers. Best results are achieved if the Radar is
bounced off a sign or overpass ahead of both you and the target. It
is best to confine your range to that where you know your Radar
will cause the target's detector to go full scale.

Rear - Generally confined to eliminating Rear Bumper Dwellers because
of the difficulty in scoring, the best technique is known as the
Annie Oakley style. Simply lay the Radar across your shoulder and
fire. Since you are achieving line of sight contact with his
detector, the results are spectacular. The Tractor beam in action.

Setting up for Subsequent Shots:

If you have a target that appears to be fertile for a repeat multiplier,
the best technique is to wait a minute or two and then pass the
target. This encourages the target to resume trolling speed again.
Lead the target for awhile to build his confidence and then lift the
throttle and coast. Allow the target to pass you again and when
you achieve minimum clearance, fire again. Repeat Phasors coupled
with the vague recollection in the target's mine that you just
slowed way down will generally lead to spectacular trolling.
This technique can be use up to about 5 times (10 on yuppys and lawyers)
on a given target before he figures something's up. About the
4th or 5th shot is the optimum time to set the target up for
a nuke (see definition below.) The use of an intergalactic communicator
(CB) is vitally handy for assessing the conditions favorable
for nuking.

Special Techniques and Definitions:

These techniques have been found to produce better scores than shooting
for lone targets.

Nerd Herding: If you spot multiple cars equipped with radar detector, you
can herd them into a cluster by zapping them each time one tries to pass
another.

Wolf Pack: Played by two or more cars in convoy, communicating on an
obscure non-CB frequency: Wingman trails leader by about 1/2 mile, spots
targets and gives early warning to leader. Leader fires rearward, hitting
the marks with a strong head-on signal. Wingman confirms hits. Leader and
wingman try to see how many marks they can herd between them.

Left Lane Bandit Blasting: This dual purpose technique yields good scores
and frequently busts up Left Lane Bandit clumps. This is the one
instance where clearance rules are relaxed. This is used
when the trolling vehicle is stuck behind a bunch of left-lane-bandits
proceeding side by side with geriatrics (real or premature) in the
more right lanes. If there are more than 3 or 4 cars in the clump,
odds are one vehicle will have a radar detector and will be driven
by a target who will respond to the troll even when going below the
speed limit. Also known as the Paranoid Factor. Technique is
to lift throttle (to give you some room) and firing into the
crowd. The inherent entropy introduced by the tractor beam
will tend to scatter the cars so that you can find a way through the
mess. You bust a left lane bandit and score at the same time.
Also known as "Bumper Cars."

Yuppy Puppy: Canine Critters, generally of a large/exotic/expensive breed
and always an utterly stupid, undisciplined monster.

Yuppy Larvae: Similar to Yuppy Puppy except of human origin. Generally
the result of her taking something seriously he poked at her in fun.
Also known, depending on context and age, as "accident", Yard Ape,
Busted Rubber, Curtain Climber or Precious. Personality characteristics
are almost identical to the Yuppy Puppy except that the Larvae is
louder and is generally allowed in restaurants and movie theaters
where they do maximum damage.


Scoring is done in accordance with the following table. This table recognizes
the added value of multiple hits on a given target and on the difficulty
inherent in getting multiple responses from one hit.

The easiest way to score is to get one of those handheld counting "clickers"
like are used by the gate keepers at the ballpark to count fans. This
is that chrome golf-ball sized orb that contains a mechanical counter and
a pushbutton that increments the count. Available from your local office
supply store for a nominal price. Scores can be kept in a log book
for submittal to the management. Winners (and L00zers) will be
recognized accordingly.

Basic scoring: What the target does: Select all that apply and add.

Looks about, slows down = 1 point
Tail lights = 2 point
Hard braking = 3 points
Lane change = 3 points
Hides his radar detector = 4 points
Blue smoke from tires = 5 points
Hits an exit = 10 points
Turns off detector = 10 points.
Pulls over and fakes car trouble = 12 points
Hits median and goes the other way = 15 points

Bonus Adders: Add these bonus points to whatever you got above:

Fuzzy dice + 1 point
Suction Cup Garfield (or other critter) + 1 point
Was already below the speed limit + 2 points
Cellphone in use + 2 points
Radar detector has cord draped across dash + 2 points
Eating/drinking interrupted + 2 points
" " " , stuff spilled + 4 points
Audio hit * + 3 points
Yuppy puppy on board + 3 points
Yuppy larvae on board (see definitions) + 3 points
"" "" "" with sign announcing same + 5 points
Slapping of yuppy larvae interrupted + 4 points
Vanity tag + 5 points
CB ** see below
Makeup being applied + 6 points
Head to head hit (opposite direction) + 8 points
Bimbo (male or female) + 10 points
Sexual act interrupted + 15 points
Off-duty cop + 20 points
Fully dressed police cruiser + 30 points
Confirmed lawyer + 40 points
Lawyer w/vanity tag that says "Tort" + 50 points

* Audio hit - when you're close enough to hear the target's detector
alarming.
** CB radio. Take 5 points for initial report of your hit on CB radio
and 5 points for each 10 minutes it's talked about.

Just all 'em all up and then do the multiplier.


Multipliers: Take all that apply.

Each subsequent hit on a target X (count of hits on that target)
Yuppy scum X 2
BMW/Benz/Porche/Jap clone thereof X 3
Motorcycle X 5 (reflects rarity)
Yuppy puppy bus (minivan) X 4
Lo-riders, similar vehicles X 3
Junker X 2
Nuke * X 10

* "Nuke" is the term used when the target is baited into busting a
real radar trap. Ticket must be issued to count.

Penalty box: Subtract these points:

Target shoots back with single digit of the hand - 2 points
with radar - 5 points
with gun - 10 points
Caught for speeding while trolling - 10 points
Caught for more serious infraction while trolling - 15 points
Operating without a radio license - 20 points
Getting trolled by another competitor * - 20 points
Getting caught by the Phuzz without license - 25 points
Getting caught by Uncle Charlie without license - 30 points
Having trolling implement confiscated - 40 pts + disqual.
Caught for speeding by RADAR while trolling - 50 points