Kenwood TH-F6A Service Manual page 9

* TH-F7 Frequency Construction
A band RX Double Super Heterodyne
Audio
RX Freq. Range
[MHz]
144.000
430.000
TH-F7 Frequency Construction
CIRCUIT DESCRIPTION
2nd
2nd IF 1st IF
Mixer
2nd LO
Fig.11
VCO Oscillation
[MHz]
145.995 203.850 205.845
439.995 370.150 380.145
Table.8
Fig.12
Transmission
Band Frequency Range VCO Oscillation
[MHz] [MHz] [MHz]
144 144.000 145.995 576.000
440 430.000 439.995 430.000
Table.9
TH-F6A/F7E
1st Mixer Amplifier
VCO
1st IF 2nd LO 2nd
1st Mix. [MHz] [MHz] Mix.
Upper 59.85 59.4 Lower
Lower 59.85 59.4 Lower
Devide
583.980 4
439.995 1
2nd IF
[kHz]
450
450
9