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Last modified 2026-02-23

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Royce 1-653B

A picture of Royce 1-653B

SPECIFICATIONS

GENERAL
Type:Citizen band transceiver
Frequency range:26.965-27.255 MHz
Channels / tuning steps:23
Mode:AM
Frequency control:PLL
Frequency stability:±0.005% (No temperature reference)
Clarifier or Delta tune:No
Power supply:13.8 VDC (Male 2-pin jack)
Current drain / power consumption:RX: ? mA
TX: ? A
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):178*57*226 mm (7*2.25*8.88")
Weight:? Kg (? lb)
Other features:PA. ANL.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 10.7 MHz
2nd IF: 455 KHz
Sensitivity:0.5 uV (10 dB S+N/N)
Squelch sensitivity:Less than 0.5 uV (Threshold)
Selectivity:5 KHz (-6 dB)
Image rejection:
AF output power / speaker:4 W at 10% distortion / 8 ohm
External speaker connector:TS "Minijack" (3.5 mm), 8-16 ohm




TRANSMITTER SECTION
RF output power:4 W
Modulation system:
Max FM deviation (Factory set):No FM
Spurious emissions:Better than -? dB
Microphone impedance / connector:500 ohm / 4-pin (Male locking ring jack)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Japan, 1976-197x (Discontinued)
Main PCB:
Sub PCBs:
Additional info:
Related documents: User manual (2.8 MB)
AF amplifier: AN315
RF driver: 2SC1728
RF final: 2SC756A
Known markets and approvals: USA
FCC Data: 1-653B
Sams Photofact #:CB-122 (June 1977)
Modifications and fixes:
Reviews:
Options / Accessories:
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