Radio Shack TRC521 CB owner manual Specifications, Receiver

SPECIFICATIONS

RECEIVER
Frequency Response (1 kHz, 0 dB Reference)
Lower, at 450 Hz		–3 dB
Upper, at 2500 Hz		–3 dB
Intermediate Frequency
First IF	10.695 MHz
Second IF		455 kHz
Maximum Sensitivity		1 ∝V
Sensitivity for 10 dB S/N	1 ∝V or better
AGC Figure of Merit
50 mV for 10 dB Change in Audio Output		90 dB
Overload AGC Characteristics (from 50 mV to 1000 mV)		....... 4 dB
Adjacent Channel Selectivity		55 dB
Image Rejection	Typically better than 60 dB
IF Rejection	65 dB or better
Maximum Audio Output Power	.......................... 4 Watts at 8 ohms
Squelch Range	Adjustable from 0.5 ∝V to 1 mV
Receive Battery Drain	280 mA to 1500 mA
(from No Signal to Maximum Output)
TRANSMITTER
Frequency Tolerance		±0.0005%
Maximum Output Power	4 Watts (maximum allowed by FCC)
Spurious Emission	–65 dB or better
Transmit Battery Drain	1270 mA to 1870 mA
(from No Modulation to 80% Modulation Limit)
Modulation Frequency Response (1 kHz, 0 dB Reference):
Lower, at 450 Hz		–3 dB
Upper, at 2.5 kHz		–3 dB
Modulation Type and Capacity	.................................... A3 and 85%
Microphone Sensitivity	5 mV for 50% Modulation
GENERAL
Channels		40
Frequency Range	26.965 MHz to 27.405 MHz
Frequency Control	Phase-Locked Loop Synthesizer
Operating Temperature Range	............................... –22°F to 122°F
Power Requirements	13.8V DC (12–16 volts DC,
	Negative Ground)
Input Power	7.5 W (Reference Value)
Antenna	50 Ohm (Coaxial Connector)
Microphone	Condenser Type

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