Radio Shack TRC-504 Manuel du propriétaire télécharger pdf (Page 22)

SPECIFICATIONS

GENERAL

Channels ................................................................................................. 40 Channels

Frequency Range ........................................................... 26.965 MHz to 27.405 MHz

Power Requirements ........................ 13.8 V DC (12–16 Volts DC, Negative Ground)

Dimensions ............................................................................. 7

× 7

× 2

Inches

(184 × 200 × 57 mm)

Weight ................................................................................................. 3.1 lbs (1.4 kg)

RECEIVER

Sensitivity ............................................................. 0.7 µV or better for 10 dB (S+N)/N

Adjacent Channel Rejection ........................................................... 65 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 .............................................................................................. 50 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

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Radio Shack TRC-504 Manuel du propriétaire Page 22