jnj@cci632.cci.com (John Jenkins) (06/25/91)
In his article, Tom Edwards (tedwards@aplcomm.JHUAPL.EDU) writes : > Ramsey Electronics sells a radar speed indicator kit for under $100. > You make the gun out of a tennis ball can which you provide :-) > I imagine one could take the LED output lines and utilize them for > computer sensing. Now the question for the rest of you... Does anyone have the address for this place. I WANT one of the kits REAL bad. Maybe someone has the kit itself ? Thanks in advance. John +---------------------------+-----------------------------------------------+ | John Jenkins (DOD #219) | '89 Katana 1100 | | Rochester, New York | | | Computer Consoles, Inc. | | | Email : jnj@cci.com | "Life begins at 140" | +---------------------------+-----------------------------------------------+
dmturne@PacBell.COM (Dave Turner) (06/26/91)
In article <1991Jun24.205716.29809@cci632.cci.com> jnj@cci632.cci.com (John Jenkins) writes:
.> Ramsey Electronics sells a radar speed indicator kit for under $100.
.
.Now the question for the rest of you... Does anyone have the address
.for this place. I WANT one of the kits REAL bad. Maybe someone
Ramsey Electronics, Inc.
793 Canning Parkway
Victor, NY 14564
(716) 924-4560
--
Dave Turner 415/823-2001 {att,bellcore,sun,ames,decwrl}!pacbell!dmturnefrankb@hpsad.HP.COM (Frank Ball) (06/26/91)
> Ramsey Electronics sells a radar speed indicator kit for under $100. > You make the gun out of a tennis ball can which you provide :-) > I imagine one could take the LED output lines and utilize them for > computer sensing. Just what is this kit? Is is really RADAR? or is it SONAR (ultrasonic)? or maybe LASER (with a diode?)? Frank Ball frankb@hpsad.HP.COM pyramid!hplabs!hpsad!frankb
depolo@eniac.seas.upenn.edu (Jeff DePolo) (06/27/91)
In article <6194@ptsfa.PacBell.COM> dmturne@PacBell.COM (Dave Turner) writes: >In article <1991Jun24.205716.29809@cci632.cci.com> jnj@cci632.cci.com (John Jenkins) writes: >.> Ramsey Electronics sells a radar speed indicator kit for under $100. >. >.Now the question for the rest of you... Does anyone have the address >.for this place. I WANT one of the kits REAL bad. Maybe someone For $100-$300, you can have the real thing. Go to one of the bigger hamfests in your area. At Dayton, there were about 5 or 6 guys selling radar guns, as cheap as $125 for Kustom MR-7's (X-band moving-type radar guns). The Ramsey kit operates on S band, which is sort of a blessing, because you won't set off everyone's radar detector. --- Jeff -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Jeff DePolo WN3A Twisted Pair: (215) 386-7199 depolo@eniac.seas.upenn.edu RF: 146.685- 442.70+ 144.455s (Philadelphia) University of Pennsylvania Carrier Pigeon: 420 S. 42nd St. Phila PA 19104
depolo@eniac.seas.upenn.edu (Jeff DePolo) (06/27/91)
In article <1840053@hpsad.HP.COM> frankb@hpsad.HP.COM (Frank Ball) writes: > >> Ramsey Electronics sells a radar speed indicator kit for under $100. >> You make the gun out of a tennis ball can which you provide :-) >> I imagine one could take the LED output lines and utilize them for >> computer sensing. > >Just what is this kit? Is is really RADAR? or is it SONAR (ultrasonic)? >or maybe LASER (with a diode?)? >Frank Ball frankb@hpsad.HP.COM pyramid!hplabs!hpsad!frankb No, it's doppler radar. S band. I've seen Ramsey's demo models working at hamfests, but heard a lot of grief from a couple of netters who built the kit themselves. --- Jeff -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Jeff DePolo WN3A Twisted Pair: (215) 386-7199 depolo@eniac.seas.upenn.edu RF: 146.685- 442.70+ 144.455s (Philadelphia) University of Pennsylvania Carrier Pigeon: 420 S. 42nd St. Phila PA 19104
jgd@Dixie.Com (John G. DeArmond) (06/27/91)
frankb@hpsad.HP.COM (Frank Ball) writes: >> Ramsey Electronics sells a radar speed indicator kit for under $100. >> You make the gun out of a tennis ball can which you provide :-) >> I imagine one could take the LED output lines and utilize them for >> computer sensing. >Just what is this kit? Is is really RADAR? or is it SONAR (ultrasonic)? >or maybe LASER (with a diode?)? The kit is really RADAR. It uses a TVRO FET as the oscillator. 2 - 1lb coffee cans soldered end-to-end serve as the feedhorn. The "timebase" is a free running RC oscillator. In case you've not figured it out by now, it is pretty much junque. I bought one just to see if it worked at all. Despite monumental efforts at tweaking AND a trip back to Ramsey, the thing never had a range of more than a few dozen feet. Needless to say, the "calibration" depended on the supplied voltage, the temperature, the humidity, the phase of the moon and your attitude at the moment. Considering that for just a little bit more money one can either buy a used REAL radar gun surplus or one can buy a GunnPlexer and have the basis for a really functional unit, buying this kit is throwing money away. I like most of the other Ramsey products I've bought but the radar gun is pretty bad. John -- John De Armond, WD4OQC | "Purveyors of speed to the Trade" (tm) Rapid Deployment System, Inc. | Home of the Nidgets (tm) Marietta, Ga | {emory,uunet}!rsiatl!jgd | "Vote early, Vote often"
davet@tsdiag.ocpt.ccur.com (Dave Tiller N2KAU) (06/27/91)
In article <1840053@hpsad.HP.COM> frankb@hpsad.HP.COM (Frank Ball) writes:
-
-> Ramsey Electronics sells a radar speed indicator kit for under $100.
-> You make the gun out of a tennis ball can which you provide :-)
-> I imagine one could take the LED output lines and utilize them for
-> computer sensing.
-
-Just what is this kit? Is is really RADAR? or is it SONAR (ultrasonic)?
-or maybe LASER (with a diode?)?
Nope, it's radar. "Operates on 2.6 GHz with 5 mW power output...uses two
1 lb. coffee cans (not included in kit)...runs on 12 VDC...antenna can be
remoted up to 300 feet away...$89.95" From the spring 1991 catalog.
--
David E. Tiller davet@tsdiag.ccur.com | Concurrent Computer Corp.
FAX: 201-870-5952 Ph: (201) 870-4119 (w) | 2 Crescent Place, M/S 117
UUCP: ucbvax!rutgers!petsd!tsdiag!davet | Oceanport NJ, 07757
ICBM: 40 16' 52" N 73 59' 00" W | N2KAU @ NN2Ztedwards@aplcomm.JHUAPL.EDU (Edwards Thomas G S1A x8297) (06/28/91)
In article <1840053@hpsad.HP.COM> frankb@hpsad.HP.COM (Frank Ball) writes: >> Ramsey Electronics sells a radar speed indicator kit for under $100. >Just what is this kit? Is is really RADAR? or is it SONAR (ultrasonic)? >or maybe LASER (with a diode?)? Negative. It is a real working radar. I have seen a static display of it working at a HamFest. If you wave your hand back and forth at high speed in front of the "gun" made from the tennis ball can, you can see your hand speed displayed. I assume it is just a little gunn oscillator, and you mix the return with the xmitted signal (either electronically or in the waveguide...I don't do microwaves) and it looks at the sum or difference frequency and converts it to a speed. I have no idea how accurate this thing is, or how much range it has, but they claimed it could be used for measuring speeds of passing cars. -Tom