User's Manual

FT-950
Operating Manual
Vertex Standard Co., Ltd.
46
The narrow bandwidth is especially useful on the low bands, when many strong signals
are being received via NVIS propagation (Near Vertical-Incidence Signals) within a
narrow bandwidth. The added protection for the RF stage is especially helpful in
preventing IMD and blocking.
µ-Tune Operation
1. Press the [µ-TUNE] button. The LED inside the [µ-TUNE] button glows orange.
The [SELECT] knob works as the µ-TUNING knob.
2. Press the [SELECT] knob to activate the µ-Tune filter. The tuning position of the
µ-Tune filter will appear in the Tuning Offset Indicator on the display.
Advice:
The µ-Tune circuit will automatically align itself onto your operating
frequency.
Remember that µ-Tune only operates on the 14 MHz and lower bands.
3. Rotate the [SELECT] knob to peak the response (background noise) or reduce
interference.
Advice:
The amount of change in the center frequency of the µ-Tune filter, when
rotating the [SELECT] knob by one click, can be configured using Menu item
“032 GENE µT DIAL”.
If you have performed manual adjustment of the µ-Tune filter center frequency,
you may press the [CLEAR] button to re-center the filter response on your
current operating frequency.
4. Press the [SELECT] knob (momentarily) once more to disengage the µ-Tune filter;
the tuning position of the µ-Tune filter disappears from the Tuning Offset Indicator
on the display. In this mode, only the fixed bandpass filter for the current band will
be engaged.
Advice: The µ-Tune Filter selection will be memorized independently on each VFO
stack of the VFO-A and VFO-B.
Advice:
The µ-Tune filters are the most advanced, selective RF preselector filters ever
incorporated into an Amateur Radio transceiver. The RF selectivity provided by
µ-Tune can be of tremendous value in ensuring quiet, intermod-free reception even
in the most crowded bands on a contest weekend. The µ-Tune filters provide RF