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2. SSB RADIOTELEPHONE
2-5
2.4 Reception
Check if the class of emission and receiving frequency are set properly. If necessary,
set them again referring to sections 2.1 and 2.2.
2.4.1 RF gain (sensitivity) adjustment
In normal use the sensitivity should be set for maximum. If the audio on the received
channel is unclear or interfered with other signals, adjust (usually reduce) sensitivity
to improve clarity.
Rotate the RF GAIN/PUSH TO ATT knob to adjust gain (sensitivity).
The setting value is displayed at the lower left-hand side of the
screen, with analog and digital indications.
2.4.2 S-meter
The S-meter shows relative signal strength coming into the receiver front end.
2.4.3 Receive AM broadcasting stations
1. If the RT screen is not displayed, press the RT/CH key to display the RT screen.
2. Rotate the ENTER knob to select the current class of emission then push the
knob.
3. Rotate the ENTER knob to select [AM] then push the knob (see section 2.1).
4. Rotate the ENTER knob to select [RX] then push the knob.
5. Enter RX frequency with the numeric keys then push the ENTER knob (see "Fre-
quency" in section 2.2).
2.4.4 Noise blanker
The noise blanker removes pulse noise. Press the 2/NB key on the RT screen to turn
the noise blanker on and off alternately. When the noise blanker function is active,
is displayed on the RT screen.
2.4.5 Noise reduction
The noise reduction circuit analyzes speech component and noise component, and
reduces only noise component. Press the 5/NR key on the RT screen. Each time you
press the 5/NR key, the effect of noise reduction changes in the sequence of ([NR2]
S-meter