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Last modified 2026-08-28

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RadioShack TRC-483 (21-1557 and 21-1557A)

A picture of RadioShack TRC-483 (21-1557 and 21-1557A)

SPECIFICATIONS

GENERAL
Type:Citizen band transceiver
Frequency range: CB: 26.965-27.405 MHz
WX: 161.650-163.275 MHz (RX only)
Channels / tuning steps:CB: 40
WX: 10
Mode:CB: AM
WX: FM
Frequency control:PLL
Frequency stability:±?%
Clarifier or Delta tune:No
Power supply:13.8 VDC (Fixed power cord)
Current drain / power consumption:RX: ? mA
TX: ? A
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):149*44*203 mm (5.88*1.75*8")
Weight:? Kg (? lb)
Other features:PA. ANL. Channel 9 button. RF gain.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: ? MHz
2nd IF: ? KHz
Sensitivity:
Squelch sensitivity:
Selectivity:
Image rejection:
AF output power / speaker:? W at ?% distortion / ? ohm
External speaker connector:TS "Minijack" (3.5 mm)




TRANSMITTER SECTION
RF output power:4 W
Modulation system:
Max AM modulation (Factory set):?%
Max FM deviation (Factory set):No FM
Spurious emissions:Better than -? dB
Microphone impedance / connector:500 ohm / 5-pin (DIN 180°)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Thailand, 1994-1997 (Discontinued)
Main PCB:
Sub PCBs:
Additional info: New price 1995 in the US: $99.99
New price 1996 in the US: $99.99
New price 1997 in the US: $99.99
Related documents:
Known markets and approvals: USA
FCC ID: AAO21-1557
Sams Photofact #:None
Modifications and fixes:
Reviews:
Options / Accessories:
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A rear picture of RadioShack TRC-483