HF-90 Operation & Installation Guide
Volume control knob
To increase the volume (of received signal) on the HF-90
rotate the VOLUME control knob in a clockwise direction.
Or, to decrease the volume on the HF-90 rotate the
VOLUME control knob in an anti-clockwise direction.
The VOLUME control knob on the HF-90 uses an
Incremental Shaft Encoder. This means that there are no
physical high/low limits when adjusting the volume - ie. the
knob will keep rotating without coming to a stop. As you
rotate the knob you will detect the high/low limits. Once a
limit is reached, turning the knob in the same direction will
no longer affect the volume. A small audible click occurs
with each increase and decrease of volume.
Please note that the VOLUME control knob can also be used as
a Selcall Mute control on the HF-90 Advanced Model. Please
refer to Section 6.5 of this Guide.
Special Note:
Advanced Model
18
Section 5.2
Adjusting volume