Kenwood TS-830S Instruction Manual page 9

3.1 FRONT PANEL
The symbol after the part name indicates:
®: Active only during reception.
@: Active only during transmission
No symbol: Always active
1. NOTCH INDICATOR LED ®
This indicator, (light emitting diode), illuminates when the
NOTCH circuit is turned ON.
2. VFO INDICATOR LED
The VFO indicator illuminates when the internal VFO
controls transceiver operation. The indicator is not lighted
during fixed channel or remote VFO operation.
3. FIX (FIXED CHANNEL) INDICATOR LED
The FIX indicator illuminates when the internal fixed
frequency oscillator controls transceiver operation.
4. RF ATT INDICATOR LED ®
This illuminates when the RF ATTENUATOR is turned ON.
5. DH (DISPLAY HOLD) SWITCH
With this switch ON, the display frequency remains ON even
if the main tuning is changed. This feature is used to memo-
rize the original frequency when checking another frequency.
6. METER
The meter monitors six different functions, depending on
METER switch position. In receive the meter is
automatically an S-meter, and shows received signal
strength on a scale of O to 40 dB over S9. In transmit,
meter function depends on the position of the METER
switch, as described below. This is an average-responding
meter, NOT peak-reading.
7. PROC (SPEECH PROCESSOR) SWITCH @
This switch is used during SSB operation. Set the switch to
the ON position and the speech processor will be activated,
increasing the average talk power. Compression level can
be adjusted by the processor control (8).
8. COMP LEVEL CONTROL @
This control adjusts compression level. Set the meter switch
(12) to the COMP position and adjust this control while
observing the meter COMP scale.
9. NB SWITCH ®
With the push switch, the noise blanker circuit is turned ON
reducing pulse-type (ignition) noise. Power-line, radar, QRM
and atmospheric ''white'' noises will not operate the
blanker. The noise blanker circuit operating level is
adjustable by the noise blanker control (10).
10. NB LEVEL CONTROL ®
This control adjusts the noise blanker circuit operating level
according to receiving conditions or noise level.
11. AGC SWITCH ®
This controls the AGC (Automatic Gain Control) circuit:
OFF.............. AGC disabled (no AGC).
BAST .cccvics Normally used for CW operation.
SLOW..........
Normally used for SSB operation.
12. METER SWITCH
This determines the transmit meter function:
ALC (Automatic Level Control)
Monitors internal ALC voltage, or the ALC voltage
feedback from a linear amplifier operated in conjunction
with the TS-830S. For SSB operation the ALC reading
for voice peaks should be within the indicated ALC
range. ALC voltage adjustment is made with the MIC
control for SSB and with the CAR control for CW.
IP (Plate Current)
In this position the meter monitors final tube plate cur-
rent. The scale is calibrated from O to 350 ma.
RF (Output Power)
This monitors relative output power of the transceiver.
There is no meter scale for this position. Normally the
reading should be adjusted (with the RF METER control)
for a 2/3 scale reading.
COMP
This indicates compression level when the speech
processor is operating.
HV (High Voltage)
This position monitors the high voltage power supply.
The meter scale is calibrated from O to 10, indicating O
to 1000 volts.
13. STAND-BY SWITCH @
This two-position lever switch selects:
REG csc. anes The transceiver is receiving unless the
microphone PTT switch, or the VOX circuit is
activated.
SEND vasecyontint Locks the unit in transmit.