FM/AM Modulation Meter TF2303 (Part number: 52303‑015)

Marconi Instruments, Marconi-Ekco (MI, MEI)

  • Year
  • 1970–1972 ?
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 368472

 Technical Specifications

  • Number of Transistors
  • 8
  • Semiconductors
  • Wave bands
  • Wave Bands given in the notes.
  • Power type and voltage
  • Line / Batteries (any type) / 45-500 Hz, 95 to 130 / 190-260 V or DC: 24 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: FM/AM Modulation Meter TF2303 - Marconi Instruments, Marconi-
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 265 x 130 x 240 mm / 10.4 x 5.1 x 9.4 inch
  • Notes
  • The TF2303 is a mid‑series variant of the Marconi TF2300 family, intended for alignment and testing of VHF/UHF transmitters up to 520 MHz. It uses a manually tuned broadband RF front end feeding a 400 kHz IF strip with FM limiter/discriminator and AM envelope detector. FM deviation is read on a calibrated meter with selectable ranges; AM depth is measured by the precision detector chain. A demodulated AF output is provided for audio monitoring or external measurement. The instrument is mains powered and built in a metal bench case typical of Marconi test equipment of the late 1960s–early 1970s.

  • Net weight (2.2 lb = 1 kg)
  • 4.5 kg / 9 lb 14.6 oz (9.912 lb)

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