Arts (Auto Range Transpond System); Dtmf Paging System - Vertex Standard VX-4100 Series Operating Manual

A O

ARTS (Auto Range Transpond System)

This system is designed to inform you when you and another ARTS-equipped station
are within communication range.
During ARTS operation, your radio automatically transmits for about 1 second every
25 seconds (the interval is programmed by the Dealer) in an attempt to shake hands
with the other station.
If you move out of range for more than two minutes, your radio senses that no signal
has been received, three beeps from the beeper will sound. If you subsequently move
back into range, a single beep will be heard whenever your radio shakes hands with
the other station.

DTMF Paging System

This system allows paging and selective calling, using DTMF tone sequences.
When your radio is paged by a station bearing a tone sequence which matches yours,
your radio's squelch will open and the alert will sound. The three-digit code of the
station which paged you will be displayed on your radio's LCD.
VX-4100 S O M 13