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Last modified 2022-01-23

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RadioShack TRC-485 (21-1577 and 21-1577A)

A picture of RadioShack TRC-485  (21-1577 and 21-1577A)


Type:Citizen band / "Freeband" / Export transceiver
Frequency range: 26.965-27.405 MHz (Standard)
25.165-29.655 MHz (Export mod)
Channels / tuning steps:40 (Standard)
400 (Export mod)
Mode:AM / SSB
Frequency control:PLL/CPU
Frequency stability:Max ? ppm
Clarifier or Delta tune:? KHz
Power supply:13.8 VDC (Fixed power cord)
Current drain / power consumption:RX: 500 mA (Squelched)
TX: Less than 3 A
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):? mm (?")
Weight:? Kg (? lb)
Other features:PA. NB. LCR. Dual watch. Channel 9 button.

Receiver system: Double conversion superheterodyne
1st IF: ? MHz
2nd IF: ? KHz
Sensitivity: AM: 0.5 uV (10 dB S/N)
SSB: 0.25 uV (10 dB S/N)
Selectivity:10 KHz (-60 dB)
Image rejection:90 dB
AF output power / speaker:2.5 W at ?% distortion / ? ohm
External speaker connector:3.5 mm

RF output power: AM: 4 W
SSB: 12 W (PEP)
Modulation system:
Max FM deviation (Factory set):No FM
Spurious emissions:Better than -65 dB
Microphone impedance / connector:? ohm / 5-pin (DIN 180)
Microphone input level:? mV

Manufactured:Philippines and Korea, 1996-199x (Discontinued)
Main PCB:
Sub PCBs:
Additional info:FCC ID: AA021-1577
Related documents:User manual (2.9 MB)
Sams Photofact #:None
Modifications and fixes:
Options / Accessories:
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