PRESIDENT LINCOLN Owner's Manual page 28

7) LOC/DX Switch:
This is used to vary the RF input to the receiver, to help eliminate strong,
adjacent signals.
8) PA (Public Address):
An external loud speaker can be connected to your LINCOLN by using the
plug situated on the back panel PA.SP (C). By pressing the PA key, the
message transmitted into the microphone will be directed towards the
external speaker and be amplified. Hold the microphone far enough away
from this loud speaker so as to avoid the Larsen effect.
Press this button once to activate the function. To cancel, depress the same
key.
9) CHANNEL SELECTOR: CHANNEL ▲ ▲ ▲ ▲ ▲ and ▼ ▼ ▼ ▼ ▼ :
The two keys are available on the front panel and on the microphone
CHANNEL ▲ and ▼ allow you to step up or down to the next 10 KHz channel.
This can also be done using the rotary channel knob.
The selected channel is displayed next to the frequency display. These keys
can select any 10 KHz channel within a band (50 channels in Band a : 28.0000
to 28.4900, in band b : 28.5000 to28.9900, in band c : 29.0000 to 29.4900 and 20
channels in band d : 29.5000 to 29.6900 MHz). The step of 10 KHz is
preprogrammed and cannot be changed. When stepping up or down the
channels using the keys CHANNEL s and t, the unit tunes itself to the nearest
channel and not to the ± 10 KHz frequency indicated. When you get to
channel 50 (or channel 20 in band d), by pressing the button CHANNEL ▲, the
set will go to channel 1 of the current band, and if you are on channel 1 and
you depress CHANNEL ▼, the set will go to channel 50 (or channel 20 in band
d).
10)BAND:
Use this knob to select one of the following band segments.
a : 28.0000 to 28.4999 MHz
b : 28.5000 to 28.9999 MHz
c : 29.0000 to 29.4999 MHz
d : 29.5000 to 29.6999 MHz.
Press this button until the letter of the required band shows in the display (the
letter is displayed above the channel number). See Section «Display»
11)SPAN:
This control, used with 12) VFO, allows you to select the frequency with
precision which can be adjusted by steps of either 10 KHz, 1 kHz or 100 Hz .The
selected step is indicated by a line under the relevant digit on the frequency
display.
12)VFO:
(Variable Frequency Oscillator)
Use this control to select the transmitting and receiving frequency. First check
that the button15) F-LOCK is not depressed and then turn the rotary knob to
obtain the desired frequency. In order to change the frequency step, press 11)
SPAN so that the underlining shows under the digit required. Tuning is continuous
throughout the entire range of the LINCOLN there is no need to select band
segments. See Section «Display»
13)NB:
Noise Blanker/Automatic Noise Limiter. This filter allow the reduction of back
ground noise and some reception interference. It also help to eliminate
interference generated by the ignition system of vehicles.
14)INDIC SWITCH:
This switch is used to select the mode for the multi function meter:
a) Position RF: lndicates the received signal strength and transmitted
power.
b) Position MOD: Gives you an indication of the strength of your modula
tion when transmitting (there is no function for this meter in reception).
c) Position s: to calibrate the SWR meter See how to regulate SWR.
d) Position SWR : SWR reading. See how to regulate SWR.
In reception mode (RX), this key is locked into position RF. Each time you press
this key, the next function is selected in the given order. The selected mode is
shown on the display.
15)F-LOCK:
Pressing the Frequency Lock button will disable all the frequency determining
controls on the front panel, in order to prevent any accidental changes of
frequency.
16)MIC GAIN:
Pressing this switch activates the built-in mocrophone attenuator. This feature
is designed to be used when operating the LINCOLN in high ambient noise
environments.
17)BEEP:
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