• Country
• United States of America (USA)

• Manufacturer / Brand
• Radio Shack (Tandy, Realistic, Micronta); USA

• Year
• 2004 ?

• Category
• Citizen Band Equipment

• Radiomuseum.org ID
• 329595

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

• Main principle
• Superheterodyne (common)

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Storage Battery for all (e.g. for car radios and amateur radios) / 13.8 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 10 cm = 3.9 inch

• Power out
• 4.5 W (max.)

• Material
• Metal case

• from Radiomuseum.org
• Model: TRC-447 Cat. No. 21-1576 - Radio Shack Tandy, Realistic,

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 185 x 57 x 225 mm / 7.3 x 2.2 x 8.9 inch

• Notes

• SPECIFICATIONS
  GENERAL
  Channels ...........................................................................................................40 Channels
  Frequency Range .....................................................................26.965 MHz to 27.405 MHz
  Power Requirements ...................................13.8V DC, (12-16 Volts DC, Negative Ground)
  Dimensions (HWD) ...................................21/4 × 71/4 × 87/8 Inches, (57 × 185 × 225 mm)
  Weight ........................................................................................................3.1 lbs (1.4 kg)
  RECEIVER
  Sensitivity ..........................................................................1 μV or better for 10 dB (S+N)/N
  Adjacent Channel Rejection .................................................................... 50 dB (at 10 kHz)
  Audio Output .................................................................................... 4.5 Watts (Maximum)
  Frequency Response ..................................................................................... 450-2500 Hz
  Intermediate Frequency ............................................ 1st IF: 10.695 MHz, 2nd IF: 455 KHz
  Cross Modulation ............................................................................................................................. 35 dB
  Squelch ............................................................................. Adjustable from 0.5 μV to 1 mV
  TRANSMITTER
  Output Power ............................................................................... 4 Watts (FCC Maximum)
  Type of Modulation ........................................................................ AM Double-Sideband, Full Carrier Modulation
  Modulation Capability ............................................................................................... ±90%
  Spurious Emission ................................................................................... Less than –70 dB
  Frequency Tolerance ........................................................................................ ±200 Hz
  Antenna Impedance ............................................................................................................................... 50 Ohm
  Current Drain (13.8-volt supply). 1 Amp with No Modulation, 1.6 Amps with 80% Modulation
  PUBLIC ADDRESS
  Output Power ....................................................................................... 4.5 Watts (Maximum)
  Current Drain (at maximum power) ................................................................ 1.2 Amps
  WEATHER RADIO
  Frequency Coverage (MHz) ................................... 162.400 through 162.550 (7 channels)

• Net weight (2.2 lb = 1 kg)
• 3 lb 1 oz (3.062 lb) / 1.390 kg

• Author
• Model page created by Serioja Tatu. See "Data change" for further contributors.

• Other Models

• Here you find 1300 models, 1182 with images and 117 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Radio Shack (Tandy, Realistic, Micronta); USA