Kenwood TS-930S Instruction Manual page 22

5.3 Transmission (I)
This section covers adjustment of the transceiver for
transmission.
1. Transmission output impedance
The TS-9305 transmission output impedance is 50 ohms.
Use only a 50 9 antenna, and coaxial feed system.
2. SWR
3. Antenna terminal
Never operate the transmitter when the antenna terminal is
open (neither antenna or dummy load connected).
To test the transceiver, use a 50.2, 100 W (minimum)
dummy toad. If you perform ON-THE-AIR test transmis-
sions with an antenna, you may become the cause of
interference with other stations on the band.
ne
Refer to Table 5-2 for initial transmitter switch settings.
initial setting
Table 5-2 Control and switch setting for transmission
{Set the Remaining controls as listed In Table 5-1.)
Switch Positeon Switch ]
BAND switch |To desired band| RIT switch | OFF
'Stand By switch REC AUTO switch OFF
MODE switch cw PROC switch | OFF
[METER switch ALC ~ | -
Table 5-2
5. Antenna-tuner
'f the TS-930S is operated into an antenna with a high
SWR, the final stage SWR protection circuit may operate
(when SWR is greater than approximately 2:1). Therefore,
use the AT-930 Auto Antenna Tuner or AT-230 {option)
when antenna SWR is beyond nominal limits.
To operate the AT-930 Auta Antenna Tuner, place the
MODE switch to TUNE, AUTO—THRU switch to AUTO
and then transmit. Adjust the CAR control so the ALC
meter deflects slightly. If, after changing bands, the auto
antenna tuner does not stop at match within a reasonable
time {within 20 seconds), momentarily return to the
receive mode, and then again operate the tuner for a
match, The tuner is capable of matching a 20 — 1502
toad, or approximately up to a 2.5: 1 VSWR. (However,
30~100 ohms for 18 MHz and 24.5 MHz.)
lf the antenna and feed system exceed this range, the tuner
may not stop, since it is beyond the auto tuner's capability.
ff the tuner does not stop within 20 seconds, discontinue
22
Note:
When adjusting an external antenna tuner other than the
AT-930, place the transceiver MODE switch to TUNE for
reduce transmitter output.
5.4 Transmission (1)
To obtain maximum transmitter performance from your
TS-9305 you should understand the proper operation of
the following controls and switches.
1. SS8 transmission
{1} Connect a microphone to the MIC input.
{2] For operation up to the 7 MHz band, place the
mode switch to LSB. For operation on or above
the 10 MHz band, use the USB mode.
Place the METER switch to ALC, and the standby
switch to SEND, or use the microphone PTT
switch {if provided). é
Adjust the MiC gain contro! for an-on-scale ALC
reading on voice peaks. {Disregard power and IC
meter readings in SSB- they are not accurate or
selevant.)
(3}
(4
SSB operation
2. CW transmission
(See page 24, CW operation, for details.)
{1} Using shielded line, connect a key to the rear-
panel KEY jack.
Place the MODE switch to CW, and the meter
switch to ALC.
{3} Place the standby switch to SEND.
{4} Depress the key and adjust the CAR control for a
half scale ALC reading {see Figure 5-7}.
(2;