RX & TX Scanners
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KG PackRat
- Skipshooter
- Posts: 303
- Joined: Jun 26 2007, 18:35
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RX & TX Scanners
Has anyone ever seen a handheld scanner mod that allows you to also transmit on any programmable frequency?
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djrebel236
none that i ever heard of or seen, but if ya buy a big HAM radio that goes from 10 meters to 160 meters + 2 meters and 444's and etc, ya might be able to talk on any perticular freq that ya want, but i do not recommend ya doing so, that may get ya into alot of trouble, also if ya get your HAM licence you can go for the Extra class and talk all over...Dj
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bookie
- Duckplucker
- Posts: 132
- Joined: May 31 2007, 15:26
try these. one will go to 2GHz and the other to 1GHZ. these are used for communications equipment testing. i have 6 of the aeroflex models in the electronics shop and two of the others. But the others just collect dust because they are so old. the aeroflex will put out about 300 milla watts but can be wired to key a small box. the older one does about 1 watt so you can run a box on it too. i ran a 2 pill off one just to prove it could be done. i have one of the older models in the shed if you think you want one. i'll get it out and test it. and send some pics if you want. let me know.
o, and they are not cheap.
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o, and they are not cheap.
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KG PackRat
- Skipshooter
- Posts: 303
- Joined: Jun 26 2007, 18:35
- Contact:
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bookie
- Duckplucker
- Posts: 132
- Joined: May 31 2007, 15:26
i agree, it was just info. whitch is free and priceless. the test sets are also a great base for working on radios. or just understanding how they work. they are kinda like a radio only modular. you could play with each part and learn how it works (modulator, rf generator, audio circuits, receiver ext.) plus with one in line with a radio iit is like an EKG hooked up. you will know ever thing that is going on in your radio, X-mitt & Receive.
no they are not for everyone but they are nice if you can afford them.
nate
no they are not for everyone but they are nice if you can afford them.
nate
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crazytruker
KG, one word of advice. Forget even thinking about transmitting on scanner frequencies. If you want to that much join a volunteer fire dept. Or become a medic or cop. If you get caught, and believe me when I tell this, you will get caught and you will have never seen the FCC come crashing down on you so fast as if you key up on any of those frequencies. They are allotted to municipalities by the fcc and governed strictly. If a county runs a certain freq. for fire dispatch then that freq is not supposed to be used and most of the time is not used within a certain mile radius of said municipality.
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crazytruker
adding more... to previous post. It's not the allowing of a specific freq in a certain radius that will land you in trouble should you use it. Depending on who applies for the frequencies it could be a county, city, or any combination of that actually hold the rights to use those frequencies. I spent 20+ years as a volunteer firefighter and have heard on occasion kids keying a radio that was in a Captains car or some idiot who may have found a radio lost at a fire scene. It ain't pretty what will happen if caught.
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Jester
It would all depend where you would want to transmit.
For instance, the closest you'd probably be able to get would be with a Kenwood TH-F6A and open the TX by desoldering 2 resistors and a diode. This way, you would have a scanning HT that would give you a wide range of transmitting, but not 100% open xmit, that is not feasible as I have yet to find a transmitter that will allow this.
You might have better luck if you bought a Yaesu VX-7R or a Kenwood TH-F6A (a UK/Euro export model with open receive, no gaps. If a mod is available, you could thenperform it and get at least the entire VHF portion (130-174), etc. My TH-F6A has the mod done but that is only because I use it on MURS legally...
A word of advice and warning: If you aren't supposed to transmit on it, DONT. A lot of people think it would be funny to talk on the local police frequencies and start ripping on the cops. I even think this would be funny, but the penalty that you would receive would erase any smile from your face for a VERY LONG time.
Example: There was a schmoe in Wisconsin who used to jam ARES/RACES nets with audio clips from **Censored** movies. I laughed for a minute, but then again I thought the guy was a complete **Censored** doing that, because what if it was a REAL emergency, and there was some dope on the air jamming a help and rescue net?
The Result: The guy was not too bright. The cops, with the aid of some crafty amateurs, triangulated his signal and tracked him down using his signal coming over the input. He had done this on more than one occasion, and when he was finally caught, he was looking at up to 10 YEARS in the can! (He ended up getting 8, 6 with good behavior)
The moral of the story: Disrupting Police, Fire, or municipal communications will introduce you to a world of hurt that you do not want to experience. That being said, have fun and don't do anything stupid!
For instance, the closest you'd probably be able to get would be with a Kenwood TH-F6A and open the TX by desoldering 2 resistors and a diode. This way, you would have a scanning HT that would give you a wide range of transmitting, but not 100% open xmit, that is not feasible as I have yet to find a transmitter that will allow this.
You might have better luck if you bought a Yaesu VX-7R or a Kenwood TH-F6A (a UK/Euro export model with open receive, no gaps. If a mod is available, you could thenperform it and get at least the entire VHF portion (130-174), etc. My TH-F6A has the mod done but that is only because I use it on MURS legally...
A word of advice and warning: If you aren't supposed to transmit on it, DONT. A lot of people think it would be funny to talk on the local police frequencies and start ripping on the cops. I even think this would be funny, but the penalty that you would receive would erase any smile from your face for a VERY LONG time.
Example: There was a schmoe in Wisconsin who used to jam ARES/RACES nets with audio clips from **Censored** movies. I laughed for a minute, but then again I thought the guy was a complete **Censored** doing that, because what if it was a REAL emergency, and there was some dope on the air jamming a help and rescue net?
The Result: The guy was not too bright. The cops, with the aid of some crafty amateurs, triangulated his signal and tracked him down using his signal coming over the input. He had done this on more than one occasion, and when he was finally caught, he was looking at up to 10 YEARS in the can! (He ended up getting 8, 6 with good behavior)
The moral of the story: Disrupting Police, Fire, or municipal communications will introduce you to a world of hurt that you do not want to experience. That being said, have fun and don't do anything stupid!
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Punkin Head
it can be done and its not cheap or feasable to do honestly. I know a HAM that has a bearcat scanner modded where it can transmit. he had to add another board inside it with all kinds of stuff hooked to it to make it work. he said its cheaper and easier to buy a ready to talk radio but it can be done.
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Jester
Here's the story about the dude who got busted:
Wisconsin Ham Arrested for Radio Crimes
MADISON, WI, Nov 14, 2003--The man accused of interfering with emergency radio channels in Madison over the past nine months may have broadcast audio from pornographic movies over police airwaves, officials and the man's roommate said Friday. Police say the **Censored**, which aired Tuesday night, let them know the interference was intentional.
Rajib K. Mitra, 25, a UW-Madison student, has a criminal past involving computer hacking. Mitra is a "ham" radio operator with a degree in computer science. He was arrested Thursday after police searched his near West Side apartment. According to a search warrant, police were looking for radio and computer equipment and pornographic audio and video.
Mitra was in the Dane County Jail Friday. He has been tentatively charged with 16 felony counts of computer crimes and could also face federal charges, according to police.
Police hope that Mitra's arrest ends months of sporadic, frustrating interference with their radios.
The problems first surfaced in the State Street area and later arose in a one-mile radius of the intersection of North Orchard and Regent streets. Mitra lived in an apartment on North Orchard.
A motive has not been determined, said Detective Cynthia Murphy. The interference usually left radios dead for stretches from a few seconds to about 20 minutes but never on a regular schedule, adding to the difficulty of tracking the source, said Al Schwoegler, the city's communication operations supervisor.
The interference came at times when police were dispatched on calls, meaning the person jamming may have monitored police radio traffic.
"He had to be knowledgeable about the system," said Schwoegler. "When we changed frequencies the jammer changed frequencies."
Police worked with the radio manufacturer Motorola, area cellular phone companies, UW-Madison officials and amateur radio operators.
Ralph Pellegrini, 45, of Sun Prairie, is a ham operator and technician for Sprint PCS who assisted police. He said a cellular site near State Street was among the things first considered as a source of the interference.
Officials probably found the source of the signal by using a device that can detect signals from one direction, Pellegrini said. The signal gets stronger the closer you get to the source. Buildings and the geography likely complicated the search. "The city radio guys have to get really a lot of credit because they were working in an environment that's pretty bad," he said.
In most of the incidents, radios appeared to malfunction. But on Halloween night, a steady tone was broadcast at various times until about 4 a.m. Nov. 1.
Police near State Street patrolling the massive celebrations worked on a different frequency, but other officers, paramedics and firefighters in a one-mile radius of Mitra's apartment experienced problems. It forced officials to keep switching channels.
"It was a cat and mouse game. We moved and he moved," Schwoegler said. "Of all of the nights to do this."
On Tuesday night, pornographic audio was broadcast 13 times in two- to three-second bursts for about 20 minutes, Schwoegler said. <
In August, Mitra moved from North Lake Street to an apartment at 10 N. Orchard St., Schwoegler said.
His roommate, Lisa Albright, 21, a UW-Madison senior from Monroe, said she met Mitra in 2001 through her sister, who had met him on the Internet.
Albright said Mitra rarely spoke to her, stayed in his room, which was filled with computer equipment, and seemed to have few friends. Albright said Mitra met his girlfriend from Stevens Point on the Internet.
On Thursday, Albright was doing an experiment in a bacteriology class when she was pulled from class by two plainclothes investigators. She was questioned by police and the FBI for four hours. <
"I had no idea what was going on. They just said something serious had happened," Albright said. "By the end of it I was bawling." <
Besides tearing apart Mitra's small bedroom, they also searched Albright's bedroom and car, took her computer and videotapes.
"They just couldn't believe I lived with him and didn't know anything," said Albright. "It's just unreal."
Rebecca Truszynski, 21, lives next door. On Thursday police were in the ceiling looking for wires that may have led to a transmitter on the roof.
"It's kind of creepy. The whole time the police were here it was a weird, eerie feeling," she said.
Wisconsin Ham Arrested for Radio Crimes
MADISON, WI, Nov 14, 2003--The man accused of interfering with emergency radio channels in Madison over the past nine months may have broadcast audio from pornographic movies over police airwaves, officials and the man's roommate said Friday. Police say the **Censored**, which aired Tuesday night, let them know the interference was intentional.
Rajib K. Mitra, 25, a UW-Madison student, has a criminal past involving computer hacking. Mitra is a "ham" radio operator with a degree in computer science. He was arrested Thursday after police searched his near West Side apartment. According to a search warrant, police were looking for radio and computer equipment and pornographic audio and video.
Mitra was in the Dane County Jail Friday. He has been tentatively charged with 16 felony counts of computer crimes and could also face federal charges, according to police.
Police hope that Mitra's arrest ends months of sporadic, frustrating interference with their radios.
The problems first surfaced in the State Street area and later arose in a one-mile radius of the intersection of North Orchard and Regent streets. Mitra lived in an apartment on North Orchard.
A motive has not been determined, said Detective Cynthia Murphy. The interference usually left radios dead for stretches from a few seconds to about 20 minutes but never on a regular schedule, adding to the difficulty of tracking the source, said Al Schwoegler, the city's communication operations supervisor.
The interference came at times when police were dispatched on calls, meaning the person jamming may have monitored police radio traffic.
"He had to be knowledgeable about the system," said Schwoegler. "When we changed frequencies the jammer changed frequencies."
Police worked with the radio manufacturer Motorola, area cellular phone companies, UW-Madison officials and amateur radio operators.
Ralph Pellegrini, 45, of Sun Prairie, is a ham operator and technician for Sprint PCS who assisted police. He said a cellular site near State Street was among the things first considered as a source of the interference.
Officials probably found the source of the signal by using a device that can detect signals from one direction, Pellegrini said. The signal gets stronger the closer you get to the source. Buildings and the geography likely complicated the search. "The city radio guys have to get really a lot of credit because they were working in an environment that's pretty bad," he said.
In most of the incidents, radios appeared to malfunction. But on Halloween night, a steady tone was broadcast at various times until about 4 a.m. Nov. 1.
Police near State Street patrolling the massive celebrations worked on a different frequency, but other officers, paramedics and firefighters in a one-mile radius of Mitra's apartment experienced problems. It forced officials to keep switching channels.
"It was a cat and mouse game. We moved and he moved," Schwoegler said. "Of all of the nights to do this."
On Tuesday night, pornographic audio was broadcast 13 times in two- to three-second bursts for about 20 minutes, Schwoegler said. <
In August, Mitra moved from North Lake Street to an apartment at 10 N. Orchard St., Schwoegler said.
His roommate, Lisa Albright, 21, a UW-Madison senior from Monroe, said she met Mitra in 2001 through her sister, who had met him on the Internet.
Albright said Mitra rarely spoke to her, stayed in his room, which was filled with computer equipment, and seemed to have few friends. Albright said Mitra met his girlfriend from Stevens Point on the Internet.
On Thursday, Albright was doing an experiment in a bacteriology class when she was pulled from class by two plainclothes investigators. She was questioned by police and the FBI for four hours. <
"I had no idea what was going on. They just said something serious had happened," Albright said. "By the end of it I was bawling." <
Besides tearing apart Mitra's small bedroom, they also searched Albright's bedroom and car, took her computer and videotapes.
"They just couldn't believe I lived with him and didn't know anything," said Albright. "It's just unreal."
Rebecca Truszynski, 21, lives next door. On Thursday police were in the ceiling looking for wires that may have led to a transmitter on the roof.
"It's kind of creepy. The whole time the police were here it was a weird, eerie feeling," she said.
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busman
- Donor
- Posts: 2,097
- Joined: Dec 27 2006, 12:04
- Contact:
I SAY FORGET THAT IDEA. DO LIKE CRAZYTRUCKER SAID AND JOIN THE FIRE DEPT. OR THE POLICE FORCE. STICK WITH 11 METER. NOBODY CARES ABOUT THAT. AND LIKE THE OTHERS HAVE WARNED, IM SURE YOU WOULD BE IN DEEP DOG DO-DO IN NO TIME. SAME AS SCREWING AROUND ON THE MARINE RADIO BANDS. A BIG NO-NO OUT HERE ON THE COAST. YA, IVE ALWAYS THOUGHT IT WOULD BE FUN TO HOLLER BACK AT THE COPS BUT BETTER JUDGEMENT PREVAILS. :D
