Ssb Operation; Cw Operation - Kenwood TS-820 Operating Manual
Ssb transceiver
Hide thumbs
Also See for TS-820:
- Service manual (109 pages) ,
- Operating manual (44 pages) ,
- Manual (11 pages)
Table of Contents
Advertisement
PLATE AND
L
OAD TUN
ING
CAUTION
:
When the
MODE switch is in the CW
IJOSition
the final tubes draw
fuJi
plate current in
transmit.
Fin
al tube
life
as
directly related to
the
length
of
tune
-up periods.
Do
not
transmit with
the
tubes out of resonance for more than
10
seconds
at
a
time.
Turn
the MODE switch
to
CW,
turn the METER
switch
to
RF,
and set
the stand-by switch
to
the SEND
position.
Quickl
y
adiust
the PLATE contra! and then
the
LOAD control
alter-
nately
to
peak (mal(imum mete( deflection)
the
power
out-
put.
If necessary.
adjust
the
RF
VOLT
control
on
the
rear
pa-
nel to
bring
the output
reading
to about a
2/3 scale
reading.
NOTE
1
:
The
ALC
meter
is less
deflected at the
O
N
posi-
tion or
the
SG
switch
or
at
the
CW
position
of the
MODE
switch than at the OFF
position
or
the TUN
position
o
f
these
swatches.
This
indicates
the
normal
state
o
f
RF
NFB.
Th
e
MIC knob and the CAR
knob
should
be properly adjusted un-
der normal transmit
.conda
tions.
NOTE
2
:
Transmission
is not effected at the WWV or AUX
position of
the BAND switch. If the transceiver is left
in
the
transmit mode
over
a few
minutes,
th
e driver tube 12BY7 A
of the final stage may
be
damaged.
4
.
12
SSB
OP ERATION
Tune the
TS
-820
as
described
in
Sections
4
.
l
to 4
.
1
1.
Set
the
MODE
switch to USB
or LSB
and
connect
a microphone
to
the MIC
connector.
NOTE
:
International amateur practice dictates using
USB
or
LSB
on
the following bands.
3.5 i\1Hz Band
LSB
7.0 MHz Band
LSB
14.0 MH
z
Band
USB
21.0 MHZ Band
USB
28.0
MH
z:
Band
USB
Key
rhe transmatter
and
speak
into
the microphone with toe
tone of voice used in normal
operation.
Adjust the
M
IC
con-
trol untal
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
ra
nge.
t
he
transmitted signal w ill
b
e distorted.
PTT
OPE RA
TI
ON
By connecting
the
microphone equipped with
PTT
switch,
the
transceiver
as
readily
used for
PTT
operation.
For
com-
munication.
depress
PTI
switch with STANDBY
swi tch
left
in the REC position.
20
VOX O
PERATI
O
N
Aclju
s<
the
transceiver as described
in the
previous para-
graph.
Flip the VOX
switch
on
and
close -talk
into
the
micro-
phone. ancreasing 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 tripp
ing
the
TS-820 mto
transmission.
Check that the A LC reading for voice peaks is still within the
ALC
range
on
the
meter.
If
necessary,
adjust the M IC con-
trol
for
a
proper
ALC
reading.
If
the VOX circuit is
activated
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.
4.13
CW
OPERATION
Tun
e and load the
TS
-820 as described
in
Sect
ions
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.
CW transmissaons are automatically
monitored
through the
speaker of the transceiver.
The
audio
gain
of the
sidetone
can
be adjusted witl'l VR3 on the AF
board.
For semi-break-in operation. turn the VOX
swit
ch
on.
Hold
the key down
and
increa
se
the VOX GAIN
control,
un
til the
VOX
relay just operates.
It
is
desired to change
th
e
release
ttme
constan
t of
the VOX
circuit.
adjust
the DE
LAY
control.
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
no
ALC reading.
OPERATION
WITHOUT
CW
FILTER
Set the IF SHIFT knob to its center position and
th
e RIT
switch to the OFF position to
receive
CW
signal.
Turn
the_
main tuning knob for about 800 Hz of beat signal
and
your
1ransmit
frequency
will be set to
th
e
transmit frequency
o
f
t
he 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 zeroing
of
frequencies can be
achieved. After zeroing. set
the
RIT
switch to ON
and
turn
the
RIT
knob for -the pitch that suits your listening taste.
-
--
-
--·-
-
·-·-- -
Advertisement
Table of Contents
