Att (Front End Attenuator); If Shift - Yaesu FT-100D Operating Manual

Receiver Accessories
ATT (FRONT END ATTENUATOR)
The Attenuator reduces all signals (and noise) by 12 dB, and it may be used to make
reception more pleasant under extremely noisy conditions.
I. Press the [FUNC] key, as needed, to select Operating Function Row 5 [lPO, ATT, AGe,
NB] on the display.
2. Press the [B](ATT) key to activate the Attenuator.
3. Press the [B](ATT) key once more to switch the Attenuator out of the receiver front end
circuit.
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This feature is not available on the 144 MHz and 430 MHz bands.
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IF SHIFT
The receiver's IF SHIFT feature is an effective interference-reduction tool, which allows
you to shift the passband response higher or lower without changing the pitch of the incom-
ing signal.
1. Press and hold in the [CLAR] key for
Yz
second to activate the IF SHIFT feature. A
graphical display of the IF SHIFT's current position will appear on the LCD.
2. Rotate the select knob, as needed, to reduce or eliminate interference.
3. To switch from IF SHIFT
to
CLARIFIER operation, again press the [CLAR] key for
Iii second. The last setting of the IF SHIFT control will be retained until you change it
again.
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When you turn the IF SHIFT off, the setting of it returns to "zero."
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FT-JOO
MICRO MOBILE OPERATING MANUAL