Hy-Gain 673B, Instruction Manual

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CB Receiver Section
Circuit type
dual conversion superheterodyne with
R F stage and 455 kHz ceramic filter
23 crystal-controlled channels in the
27 M Hz Citizens Band
Sensitivity 0.7 f.1V for 10 dB (S
+
N)/N ratio
IF
frequency 1st IF: 11.275 MHz
2nd IF: 455 kHz
CB Transmitter Section
Frequency .
Power input .
RF Power output .
23 crystal-controlled channels in 27
MHz Citizens Band
5 watts
4 watts
Emission 8A3
Spurious response rejection all harmonic and spurious suppression
better than Federal Communications
Commission and Department of
Communications (DOC) requirements
Modulation AM, 90% typical
Range boost. . . . . . . . . . .. yields high average modu lation at
average voice levels.
Transmitting current drain .. less than 45 W
Antenna nominal 50 ohms impedance
Power source 120/240 VAC 50/60 Hz
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