Kenwood TS-820 Operating Manual page 13

111e RI T circui1 is ON . By t urning th e RIT kn ob. t he receive
frequency of V FO can be ch anged by ± 3 kHz and t he Ire-
fluenc y of fi xed channel by
±
1 50 Hz wit hout changing t he
transmit frequency.
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BAND SWITCH
This 1 1-position switch selects all the necessary circuits to
tune the transceiver to the desired 500 kHz b and.
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FUNCTION SWITCH
This 7 -position rotary sw itch selects one of th e following
transceive functions.
CAL-
FIX:
CAL-
RM T:
This positi on allow s calibration of the TS-820's
internal VFO to one of the t ra nsceiver's fixed fre-
quency channels (i f an optional fixed ch annel cry-
stal is installed). With the sw itch in this p osi ti on a
signal is generated at the selected fix ed channel
freq uency and the m ain tuning knob can be tuned
to zero beat the calibratin g signal.
This posit ion allows calibration of th e VF0 -820
(remote VFO} to the transceiver's operating fre-
quency. With the switch in t his position. the
transceiver generates a calibrating sign al and the
VFO - 820 can be t uned t o zero-beat the calibra-
ting signal.
CAL- With the switch in this posit ion. t he tra nsceiver's
2 5 kHz: calibra tor circ uit generates a m arker signal at
every 2 5 kHz for norma l calibration of the internal
VFO.
V FO : Th e sw itch is kept in this position fo r norm al
transceive opera ti on.
VFO.R: W ith t he sw itch
1n
this posit ion. the TS -820's in-
ternal VFO controls the receive function and t he
internal fixed channel oscillator contro ls the t rans·
mit fu nction (i f fi xed channel crystals are in stalled
in rhe oscillator).
FIX.R:
FIX:
12
W ith th e swi tch in this position. th e TS -820's in·
ternal VFO cont rols th e tra nsm it function and the
built -in fi xed channel oscillator con trols the re·
ceive fu nction (if fixed channel crystals are instal-
led in the oscillator}. Th e V FO.R and FIX.R allow
cross-channel opera tion without an extern al VFO.
With the switch in this position. th e TS-820's
fix ed channel oscillator con trols the transmit and
receive fu nction of the transceiver (i f accessory
- - ' - - - - - - - - - - - -- - · ·
-·--
--------- - -- -
fixed channel crystals are installed in the t r_ anscei·
ver}.
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H . SW (HEATER) SWITCH
This sw itch turns t he heater circuits of the t hree transm itting
tubes on and off. The heaters w ould normally be t urned to
OFF to reduce power consumption in m obile or portable re-
ceivin g.
@
P OWER SWITCH
Th e POWER swi tch t urns all th e pow er on and off in the
TS -8 20 .
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RtT KNOB
This kn ob is used to change rece ive frequency w hen th e RIT
circui t is in opera ti on. Set t he center positio n (0} of the
RI T knob to the RIT-OFF.
@
IF SHIFT KNOB
By using this knob during reception. the cen ter frequ en cy of
the IF crystal filte r can be shifted by
±
1. 7 kH z. facilita ting
the adjustment of the to nal quality of receive signal or elimi·
nating radio interference from nearby frequ encies. For nor-
m al operatio n. this knob should be set to the cen ter position
(click is heard).
@
MIC GAIN KNOB
This knob is used for ad justm ent of t he gain of M IC amplifier
dunng SSB operation. Adj ust so that the me ter p ointer does
not deflect b eyon d the A LC zone.
@
CAR (CARRIER) LEVEL KNOB
Used to adjust carrier level during CW operation. Adjust so
that the meter does not deflect beyond t he AL C zone.
@
AF GAIN KNOB
This kn ob adjusts the gain of t he receiving audio am plifier.
The audio volume of the received signal increases as the
control is turn ed clockwise.
@
RF GAIN KNOB
This con trol adjust s th e gain of the receiver sect ion's RF am -
plifier. Turn the knob fully clockwise fo r m axim um gain and
for a correct S-meter reading. Turn th e con trol counter--
clockwise to redu ce the gain.
FIX CH (FIXED CHANNEL) SELECT SWITCH
Thrs four-position ro tary sw itch selects bet ween four diffe-
rent fixed frequency chann els which can be in stalled inside
..
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