16
elite four
17
elite four
MICROPHONE JACK:
Used to connect microphone for voice source.
SQUELCH CONTROL:
This knob is used to eliminate background noise being heard thro-
ugh the receiver, which can be disturbing when no transmissions are being heard thro-
ugh the receiver. To use this feature, turn the knob fully counterclockwise and then turn
clockwise slowly until the background noise is just eliminated. Further clockwise rotation
will increase the threshold level which a signal must overcome in order to be heard. Only
strong signals will be heard at a maximum clockwise setting.
ON/OFF VOLUME CONTROL:
This knob controls the volume and power to the radio. To
turn radio on, rotate the knob clockwise. Turning the knob further will increase the volu-
me of the receiver.
MIC GAIN CONTROL:
Adjusts the microphone gain in the transmit and PA modes. This
controls the gain to the extent that full talk power is available several inches away from
the microphone. In the Public Address (PA) mode, the control functions as the volume
control.
POWER CONTROL: This control allows the user to adjust RF power output.
SWR LED:
This LED lights red when your SWR is higher than about 3:1. This is not an exact
indicator of 3:1 SWR, but it is an indication that you should check your SWR reading.
CHANNEL SELECTOR:
This control is used to select the desired transmit and receive
channel.
FRONT PANEL METER:
The front panel meter allows the user to monitor incoming signal
strength, RF output power, SWR level and AM modulation level.
RF GAIN CONTROL:
This control is used to reduce the gain of the RF (receive) amplifier
under strong signal conditions.
DIMMER CONTROL:
This knob controls the level of brightness for the meter lamp and
channel display.
SWR/MOD/PWR SWITCH:
This switch controls the function of the meter during the
transmit mode. In the “SWR” position, the meter indicates the Standing Wave Ratio (SWR)
of your antenna. There are no adjustments because the SWR circuit in this radio calibra-
tes itself automatically. When the switch is in the “MOD” position, the green scale on the
meter indicates your percentage of modulation in the AM mode only. They are most ac-
curate when testing at maximum power output. When this switch is in “PWR” position,
the meter indicates your power output.
NB-ANL/CB/PA SWITCH:
When the switch is in the NB/ANL position, the Noise Blanker
(NB) and Automatic Noise Limiter (ANL) circuits are activated. The Noise Blanker is very
effective in eliminating repetitive impulse noise such as ignition interference. In the CB
position, the PA function is disabled and the radio will transmit and receive on the spe-
aker that is connected. In the PA position, the radio acts as public address amplifier. Your
voice will come out of the speaker that is plugged into the PA. SP. jack on the rear panel.
The radio does not operate when you are in the PA mode.
TALKBACK SWITCH:
This is used to monitor your own voice. For example, you could use
this feature to compare different microphones. HI is high volume. LO is low volume. The
Talkback circuit is off when the switch is in the OFF position.
RX/TX LED:
This LED is green during receive and red during transmit.
CHANNEL DISPLAY:
The channel display indicates the current selected channel.
REAR PANEL
ANTENNA:
This jack accepts a 50ohm coaxial cable with a PL-259 type plug.
DC POWER:
This jack accepts the 13.8V DC power cable with built-in fuse. The power
cord provided with the radio has a black and red wire. The black goes to negative and red
goes to positive.
PA SP:
This jack is for PA operation. Before operating, you must first connect a PA speaker
(8 ohms, 4W) to this jack.
EXT. SP:
This jack accepts a 4 to 8 ohm, 5watt external speaker. When the external spe-
aker is connected to this jack, the built-in speaker will be disabled.
F.C.:
This jack is used to connect the optional six-digit frequency counter. All connections,
including DC power, are provided to the FC347 through this jack.
