User guide

ASTRO Digital Spectra and Digital Spectra Plus Model W4, W5, W7, and W9 19
Basic Operating Procedures
• If you hear a busy tone, all
trunked channels are in
use.
1. Release the PTT button
and wait for three, quick,
call-back tones.
When a call back is
received, your radio will
automatically key up for
three seconds so that you
can begin talking.
2. During this time, press
and hold the PTT button,
and proceed with your
message.
3. Release the PTT button
to receive.
OR
• If you hear a continuous
low-pitched tone, you are
out of the system's range.
The red XMIT indicator
may flash several times as
the radio tries to access
the system.
Release the PTT button
and try again when the
vehicle is driven within
range of the system.