I am trying to find any and all topics,schematics, knowledge, or any helpful thoughts about burst transmitters. I read on a schematics for sale page that they had pagers with a 3,000 mile range for pocket to pocket communications using an alpha numeric based type system. My thoughts were that these had to be some type of burst tranmsitters. I have done all the google searches and checked all the schematic libraries I can find, but to no avail. I understand that b.t.'s were primarily "and are still used" for espionage but I am on hunt now. Thanks for any help
Well... Seems to me that EVERY radio transmitter ever made is a "burst" transmitter. How long the "burst" persists for is a matter of design. Everything from milliseconds for RF modems, through variable- length for commercial and amateur radio voice transmitters, on up through months at a time for broadcast stations.
'Alphanumeric' in this context refers only to the type of data transmitted. It has nothing to do with the "system" itself. Any paging system can transmit whatever kind of signal the paging terminal puts into it, everything from simple two-tone sequential to the latest Golay or POCSAG digital modes.
The long-range paging systems you describe are typically accomplished with large networks of mountain-top transmitters linked by satellite, phone line, microwave, Internet, or any combination thereof.
I've been in radio communications for 27 years, and I've yet to hear the term "burst" used in this context. It used to be a seldom-used term in the radar field, and I recall it was also used in reference to early data radios ('data burst'), but I've never heard anyone use it the way you have.
Are you sure you mean what you think you mean?
--
Dr. Anton Squeegee, Director, Dutch Surrealist Plumbing Institute
(Known to some as Bruce Lane, KC7GR)
kyrrin a/t bluefeathertech d-o=t c&o&m
Motorola Radio Programming & Service Available -
http://www.bluefeathertech.com/rf.html
"Quando Omni Flunkus Moritati" (Red Green)
That page fairly screams "Let Us Scam You!" It's a miracle it hasn't self-destructed just yet!
Never trust any device where they don't explain the principle behind it.
--
Dr. Anton Squeegee, Director, Dutch Surrealist Plumbing Institute
(Known to some as Bruce Lane, KC7GR)
kyrrin a/t bluefeathertech d-o=t c&o&m
Motorola Radio Programming & Service Available -
http://www.bluefeathertech.com/rf.html
"Quando Omni Flunkus Moritati" (Red Green)
Dr. Anton T. Squeegee wrote in news:MPG.1a90589ed355ad4a989688@192.168.42.131:
As to whether I think I know what I mean, Yes. and no. I was pretty sure that it was only data transmission, and as for adding whether or not is was apha/numerical I was just narrowing the search field. Burst transmitters are still used in modern espionage systems as data recorder that uses low power transmission propably in ulf range at a very high transmission rate. Their are currently many type of detectors for just such transmitters but no info on the transmitter itself. the newest units B.T.s are smaller and much more reliable. The only places I have seen any technical info on them were old documentaries on ww11 spy stuff but they only mention the use of them and what they could be held in.
As for futurehorizons I saw there designs and that's what I am trying to find out about.
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