Kenwood TS-440S - Manual (Page 7)

3. OPERATION
3-1. OPERATING CONTROLS
3-1-1. Front panel
0 POWER switch
Press to turn the power ON or OFF.
(2) Meter
During receive the meter is used as an S-meter. Dur­
ing transmit the function of the meter is controlled by
the Meter switch
,
and provides either ALC level,
PWR (power) or SWR readings.
MODE/KEY (Numeric Keypad)
These keys are used to select the desired mode of oper­
ation (USB, LSB, CW, AM, FM, AFSK). When program­
ming a memory channel or directly entering a frequency
these keys are used as a numeric keypad to enter the
channel number or frequency.
Indicators
AT TUNE: Lights when the AT TUNE switch is ON.
Turns itself OFF when the antenna tuner
has completed tuning.
NOTCH: Lights when the NOTCH switch is ON.
F.LOCK: Lights when the F.LOCK switch is ON.
1 MHz: Lights when the 1 MHz step switch is ON.
M.SCR: Lights when the M.IN switch is pressed.
When the memory scroll function is active
you can review the contents of the
memory channels without a break in the
reception of the station you are listening
to.
ON AIR: Lights during transmit.
(^ Frequency display
The operating frequency is displayed down to the
nearest 100 Hz. Also displays the memory channel
number, RIT/XIT frequency, and includes indicators for
memory, VFO A/B, scan, split and RIT/XIT operations.
(D FUNCTION switches
The switches included in this group are the RIT/XIT,
T-F SET switch, and the VFO select switches. (See
page 15.)
(j) MIC gain control
Microphone gain can be adjusted during USB, LSB,
AFSK and AM operations. Gain is increased thru clock­
wise rotation of this control.
CAR (Carrier level) control
This control sets the carrier level during CW, FM and
AM operations. When transmitting in the CW mode,
adjust so that the ALC meter pointer is within the ALC
zone.
SQL (Squelch) control
This function operates in all modes, FM, USB, LSB,
CW, AFSK, and AM.
This control is used to eliminate atmospheric noise, and
receiver static noise during no signal periods. Slowly
rotate the control clockwise to the point where the am­
bient noise just disapears, and speaker shuts off. This
point is known as the squelch threshold point. Now you
will only hear output from the speaker when an incom-
ming signal is present. For weak signal reception this
control should be fully counterclockwise.