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Last modified 2020-08-13

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Marko CB-747 (120 ch)

A picture of Marko CB-747 (120 ch)

SPECIFICATIONS

GENERAL
Type:Citizen band transceiver
Frequency range: 26.965-28.305 MHz in three bands
Low: 26.965-27.405 MHz
Mid: 27.415-27.855 MHz
Hi: 27.865-28.305 MHz
Channels/tuning steps:120 (3*40)
Mode:AM/FM/SSB
Frequency control:PLL (PLL02A)
Frequency stability:Max ? ppm
Power supply:13.8 VDC
Current drain/power consumption:RX: ? mA
TX: ? A
Antenna impedance/connector:50 ohm / SO-239
Dimensions (W*H*D):? mm (?")
Weight:? Kg (? lb)
Other features:NB. Two-step RF gain. SWR-meter.




RECEIVER SECTION
Receiver system:Single conversion superheterodyne (SSB)
IF: 10.695 MHz
Double conversion superheterodyne (AM/FM)
1st IF: 10.695 MHz
2nd IF: 455 KHz
Sensitivity:
Selectivity:
Image rejection:
AF output power/speaker:? W at ?% distortion / ? ohm
External speaker connector:3.5 mm




TRANSMITTER SECTION
RF output power: AM: 8-10 W
FM: 8-10 W
SSB: 12 W
Modulation system:
Max FM deviation:? KHz
Spurious emissions:Less than -? dB
Microphone impedance/connector:? ohm / ?-pin (Metal screw ring connector)
Microphone input sensitivity:? mV




MISCELLANEOUS
Manufactured:Japan, 198x-198x (Discontinued)
Main PCB:PTBM121D4X by Cybernet
Additional info:
Related documents: PCB: PTBM121D4X (1.4 MB) Generic schematic
PLL: PLL02A
Modifications:
Reviews:
Options/Accessories:
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