Ssb Operation; Cw Operation - Kenwood TS-820S Instruction Manual

4.12 SSB OPERATION
CW transmissions are automatically monitored through the
speaker of the transceiver. The audio gain of the sidetone
can be adjusted with VR3 on the AF board.
Tune the TS-a20S as described in Sections 41 to 4.11. Set
the MOOE switch to USB or LSB and connect a microphone
to the MIC connector
For semi-break-in operation. turn the VOX switch on Hold
the key down and increase the VOX GAIN control. until the
VOX relay just operates. It is desired to change the release
time constant of the VOX circuit. adjust the DELAY control
NOTE: International amateur practice dictates using use
or LSB on the following bands
The plate current for CW operation should be about 200
ma. Use the CAR control to adjust the carrier level for CW
operation. At 200 ma of IP there may be 00 ALC readIng
OPERATION WITHOUT CW FILTER
Set the IF SHIFT knob to its center position and the AIT
switch to the OFF position to receive CW signal, Turn the
main tuning knob for about 800 Hz of beat signal and your
transmit frequency will be set to the transmit freqllency of
the opposite station (zeroing) During reception, the side
tone monitor is activated by pressing down the key In this
case. listen to the side tone signal and the receive signal and
adjust the main tuning knob so that the cycle of the sound is
increased, By so doing. the zeroirlg of frequencies can be
achieved After zeroing. set the Ril switch to ON and turn
the RIT knob for the pitch that suits your listening taste
When interference is encountered. turn the IF SHIFT knob
and the interference can be eliminated For more effective
CW operation. use the CW filter VG-88C (option) bV refer-
ring to page 34,
Key the transmitter and speak Into the microphone with the
tone of voice used in normal operation. Adjust the MIC con-
trol until voice peaks are just within the top limit of the ALC
range printed on the meter scale. The METER switch is in
the ALC position If the transmitter section is driven beyond
this range. the transmitted signal will be distorted.
PTT OPERATION
By connecting the microphone equipped with PTT switch.
the transceiver is readily used for PTT operation. For com-
munication. depress PTT switch with 5T ANDBY switch left
in the R EC position.
VOX OPERATION
Adjust the transceiver as des(;ribed in the previous para-
graph. Flip the VOX switch on and close-talk Into the micro-
phone. increasing the VOX GAIN control until the VOX relay
just operates. For VOX operation it is desirable to close-talk
the microphone to prevent background noises from tripping
the TS-820S into transmission.
Check that the ALC reading for voice peaks is still within the
ALC range on the meter. If necessary. adjust the MIC con-
trol for a proper ALC reading
OPERATION WITH CW FILTER (OPTION)
Set the transceiver in the receive mode by setting the IF
SHIFT knob to the center position and the RIT switch to the
OFF position Adjust the main tuning knob for maximum de-
flection of the S meter. The pitch of the sound of the receive
signal will now be about 800 Hz. indicating that the zeroing
is completed.
Turn the AIT switch to ON and adjust the AIT knob for your
desired pitch of the sound. Also. adjust the IF SHIFT knob
for maximum signal strength.
If the VOX circuit is activ~ted by speaker noise. adjust the
ANTI-VOX control. Increase the control as necessary for
proper VOX operation.
Do not use more VOX GAIN or more ANTI VOX gain than
necessary to control VOX operation If the VOX circuit
transfers between words. or holds too long. adjust the re-
lease time constant by turning the DELAY control.
OPERATION WITH DIGITAL DISPLAY
(TS-820S ONLY)
The digital display indicates the frequency of carrier signal
(BFa signal) so that the frequency indicated is deviated from
the transmit frequency of the opposIte station by the receive
beat frequency during CW reception (with IF SHIFT knob set
to its center position. the frequency indicated becomes lo-
wer)
To zero-in the frequencies with the digital display. set the
AIT switch to ON and turn the AIT kl\ob while manipulating
the standby switch. in order to locate a point at which the
frequency Indicated is not changed regardless of the poSition
of the stand-by switch. With the AIT knob left in that
position. turn the main tuning knob until the signal from the
4.13 CW OPERATION
Tune and load the TS-820S as described in Sections 4.1
through 4.11. Connect a key to the back panel CW KEY
jack. set the MODE switch to CW, and set the stand-by
switch to SEND for transmitting
.
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