Seismic Intrusion Detector (SID) Radio Transmitter T-1151
MILITARY U.S. (different makers for same model)
- Country
- United States of America (USA)
- Manufacturer / Brand
- MILITARY U.S. (different makers for same model)
- Year
- 1969–1973 ?
- Category
- Military transmitter
- Radiomuseum.org ID
- 281084
- Main principle
- Transmitter
- Wave bands
- VHF incl. FM and/or UHF (see notes for details)
- Power type and voltage
- Dry Batteries / 4.5 Volt
- Loudspeaker
- - - No sound reproduction output.
- Material
- Various materials
- from Radiomuseum.org
- Model: Seismic Intrusion Detector Radio Transmitter T-1151 - MILITARY U.S. different makers
- Shape
- Miscellaneous shapes - described under notes.
- Notes
-
These are U.S. military Seismic Intrusion Detectors (SIDs) with built-in battery powered VHF Radio Transmitters. When stepped on or disturbed, the SID would send a VHF RF signal to hidden radio receivers within their communication range (typically within 1,000 to 1,500 feet), for alarm, analysis, and/or relay (e.g. re-transmission). These SIDs were were used to detect enemy troop movement in jungle environments. Thus they were camouflaged to look like items found naturally in the jungle (e.g. twigs, rocks, etc. covered in moss or mud). However, they were often called “Turd SIDs”, “Dog-Doo Transmitters”, or “Monkey Turds” by the soldiers because of their shape and color.
- Author
- Model page created by Richard Groshong. See "Data change" for further contributors.
- Other Models
-
Here you find 393 models, 345 with images and 210 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from MILITARY U.S. (different makers for same model)
Collections
The model Seismic Intrusion Detector (SID) Radio Transmitter is part of the collections of the following members.