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Last modified 2026-10-03

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Sharp CBT-50 "Twincomm 50"

A picture of Sharp CBT-50 ''Twincomm 50''

SPECIFICATIONS

GENERAL
Type:Citizen band transceiver
Frequency range:26.965-27.255 MHz
Channels / tuning steps:2
Mode:AM
Frequency control:Two XTALs per channel
Frequency stability:±0.001% (No temperature reference)
Clarifier or Delta tune:No
Power supply:12 VDC (Eight R6 / AA alkaline batteries or NiCd pack)
Current drain / power consumption:RX: ? mA
TX: ? mA
Antenna impedance / connector:- / Fixed telescopic whip
Dimensions (W*H*D):70*200*45 mm (2.76*7.87*1.77")
Weight:680 g (1.5 lb)
Other features:Charging jack.




RECEIVER SECTION
Receiver system: Single conversion superheterodyne
IF: 455 KHz
Sensitivity:1 uV (10 dB S/N)
Squelch sensitivity:
Selectivity:8 KHz (-6 dB)
Image rejection:
AF output power / speaker:250 mW at ?% distortion / ? ohm
External speaker connector:TS "Subminijack" (2.5 mm)




TRANSMITTER SECTION
RF output power:~120 mW (200 mW input)
Modulation system:Class B
Max AM modulation (Factory set):?%
Max FM deviation:No FM
Spurious emissions:Less than -? dB
Microphone impedance / connector:? ohm / Internal only
Microphone input level:-




MISCELLANEOUS
Manufactured:Japan (By Hayakawa Electric Co. Ltd.), 196x-196x (Discontinued)
Main PCB:
Sub PCBs:
Additional info:
Related documents: Product sheet (1.2 MB, In swedish)
Schematic diagram (4.5 MB)
Known markets and approvals: Sweden
Kungliga Telestyrelsen
West Germany
FTZ-Nr: K-70/68
Sams Photofact #:None
Modifications and fixes:
Reviews:
Options / Accessories:
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