Ssb Operation; Cw Operation - Kenwood TS-820S Instruction Manual
Ssb transceiver
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Also See for TS-820S:
- Service manual (82 pages) ,
- Instruction manual (47 pages) ,
- Operating manual (46 pages)
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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
.
20
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