User's Manual

ANTENNAS
TYPES OF MOBILE ANTENNAS
394 ENVOY™ TRANSCEIVER REFERENCE MANUAL
Types of mobile antennas
Automatic tuning whip antenna
Description
The automatic tuning whip antenna is a multi-frequency antenna. A microcontrolled
stepper motor in the base of the automatic antenna adjusts an inductor until the
antenna is tuned to the selected frequency.
Advantages and limitations
For information on installing the antenna see the documentation provided with the
product.
Table 41: Advantages and limitations of the automatic tuning whip antenna
Advantages Limitations
Wide range of operating frequencies.
Easier to operate than a tapped whip
antenna.
Large physical size that requires a
substantial mounting bracket.
A control cable is required.