TS-280~TPS-3
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Echo Box TS-280/TPS-3 is a test instrument for checking over-all system performance and tuning the radio-frequency (r-f) system of radar sets operating at a frequency close to 600 megacycles (mc). It is designed especially for use with Radio Set AN/TPS-3. The echo box is a resonant cavity device which provides a clear, steady echo of known characteristics which may be used in place of permanent echo in many tuning and system-checking procedures.
References
- TM 11-1083 Echo Box TS-280/TPS-3. War Dept. Apr. 1945. 16 p. U408.3.A13