• Country
• United States of America (USA)

• Manufacturer / Brand
• MILITARY U.S. (different makers for same model)

• Year
• 1959

• Category
• Military transmitter

• Radiomuseum.org ID
• 206716

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 27

• Valves / Tubes

• Main principle
• Transmitter

• Wave bands
• VHF incl. FM and/or UHF (see notes for details)

• Power type and voltage
• Alternating Current supply (AC) / 105-125/210-250 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Radio Transmitting Set AN/GRT-3 - MILITARY U.S. different makers

• Shape
• Boatanchor (heavy military or commercial set >20 kg).

• Dimensions (WHD)
• 19 x 24.5 x 24 inch / 483 x 622 x 610 mm

• Notes
• The Radio Transmitting Set AN/GRT-3 is the model designation for the combination of two units: Modulator-Power Supply Model MD-141A/GR and Transmitter, Radio Model T-282D/GR. Both models are listed separately in the Museum under their respective chassis designations. This transmitter combination operates in the 225 to 399.9 MHz range, single-frequency crystal controlled with an RF power output of 100 watts from a mains power draw of 380 watts. The unit utilizes amplitude modulation for either voice or tone, narrow or broadband. This unit is normally used as the transmitting equipment of a UHF communications system used in air-traffic control towers or airway stations.

• Net weight (2.2 lb = 1 kg)
• 240 lb (240 lb 0 oz) / 108.960 kg

• Author
• Model page created by Hank Kaczmarski. 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)