Cw Mode; (A) Semi-Automatic Break-In; (B) Full-Automatic Break-In; Fm Mode - Trio TS-440S Instruction Manual

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3-3-2.
CW mode
Set MODE
keys to CW and set the Meter switch to
ALC.
ALC
PWR
SWR
DB
Placing the Standby switch to send and depressing the
CW key will cause the radio to transmit.
Transmission is also possible when in the SEMI or FULL
break-in mode by simply depressing the key, with the
Standby switch in the REC position.
Adjust the CAR control until the meter deflection is
within the ALC zone.
1
3.5
7
9
20
40
60
x
Y"T'TTrTT7J
77
50
100 150
W:
SWR
11512
3
5 1000
E
ALC zone
° SEMI and FULL break-in
Two
break-in
methods
are
provided
with
the
TS-440S/44X
transceiver, SEMI and FULL break-in.
With either break-in operation depressing the CW key
will cause the radio to transmit without the need for
manually switching the SEND/REC switch. The differ-
ence between FULL and SEMI break-in is that during
FULL break-in operation it is possible to listen between
dots and dashes, and that during SEMI break-in it is not.
Note:
With either SEMI or FULL break-in operation, cross
band/cross mode operation is not possible. Addition-
ally, when you are using FULL break-in operation you
should not work cross band splits, only in the same
band.
The TS-440S/44X also provides a side-tone oscillator
circuit to allow monitoring of your CW signal during
transmission.
(a) Semi-automatic break-in
Depressing the CW key will automatically place the
transceiver into the transmit mode. Transmit mode
will be maintained for a period determined by the
setting of the VOX DELAY control on the rear panel
of the transceiver,
even
after the CW
key is
released.
CW
OFF
SEMI
FULL
VOX
OFF
ON
14
(b) Full-automatic break-in
Depressing the CW key will automatically place the
transceiver into the transmit mode. Releasing the
CW key will return the radio to receive immediately
enabling reception between characters.
Caution:
The TL-922A/922 linear amplifer is not designed
for full break-in type operation. Attempting to use
this accessory in the FULL break-in mode cause
damage to occur to the linear amplifier.
CW
orr
SEM!
FULL
LE
VOX
OFF
ON
On occasion an electronic keyer may be used that
has no method of producing a continuous trans-
mit condition. In order to obtain a continuous car-
rier for tuning simply place the Standby switch to
the SEND position.
3-3-3.
FM mode
Select
the desired
frequency
within
the
28 MHz
amateur radio band. Place the MODE key to FM and
the Meter switch to ALC.
ALC
PWR
SWR
Press the microphone PTT switch or place the Stand-
by switch to SEND.
Adjust the CAR control until the meter deflection is
within the ALC zone. This will provide full power in the
FM mode.
To decrease the power, place the Meter switch to PWR
and while observing the meter rotate the CAR control
counterclockwise until the desired output level is ob-
tained.
ALC
PWR
SWR
ALC zone
SWR
Notes:
1. The FM power output may fluctuate if running less
than full output.
2. Ensure that an antenna with a low SWR is used.
The TS-440S/44X provides several protection cir-
cuits, continually loading into an antenna with a
high SWR (3 to 1 or greater) will eventually cause
damage to the final amplifiers.
3. The PWR meter reading may not be accurate with
high SWR values. Use a good antenna for the most
accurate readings.

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