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Last modified 2020-08-16

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Dak Mark X (By M.H. Scott Co. Inc.)

A picture of Dak Mark X (By M.H. Scott Co. Inc.)

SPECIFICATIONS

GENERAL
Type:Citizen band transceiver
Frequency range:26.965-27.405 MHz
Channels/tuning steps:40
Mode:AM/SSB
Frequency control:PLL (MC145109)
Frequency stability:Max ? ppm
Power supply:Mains: 117 VAC
Current drain/power consumption:RX: ? W
TX: ? W
Antenna impedance/connector:50 ohm / SO-239
Dimensions (W*H*D):? mm (?")
Weight:? Kg (? lb)
Other features:




RECEIVER SECTION
Receiver system:Single conversion superheterodyne (SSB)
IF: 10.695 MHz
Double conversion superheterodyne (AM)
1st IF: 10.695 MHz
2nd IF: 455 KHz
Sensitivity: AM: 1 uV (10 dB S/N)
SSB: 0.25 uV (10 dB S/N)
Selectivity:AM: 6 KHz (-6 dB)
SSB: 2.4 KHz (-6 dB)
Image rejection:
AF output power/speaker:3 W at ?% distortion / 8 ohm
External speaker connector:




TRANSMITTER SECTION
RF output power: AM: 4 W
SSB: 12 W (PEP)
Modulation system: AM: High level pushpull modulator
SSB: Double balanced modulator with crystal lattice filter
Max FM deviation:No FM
Spurious emissions:Less than -60 dB
Microphone impedance/connector:? ohm / 4-pin (Metal screw ring connector)
Microphone input sensitivity:? mV




MISCELLANEOUS
Manufactured:Korea, 1978-197x (Discontinued)
Main PCB:DT-219M (Cybernet clone)
Additional info:A large and unusual tube hybrid
Related documents: User manual (8.2 MB)
PLL: MC145109
Modifications:
Reviews:
Options/Accessories:
DM100 Dynamic desk microphone with preamp