User Manual

Com-Net Ericsson Critical Radio Systems, Inc. 32
P.O. Box 2000
Lynchburg, Virginia 24501 MM101030V3
1-800-528-7711 (Outside USA, 804-592-7711) Printed in U.S.A.
If the PTT switch is pressed while the Busy/Tx LED is on and the radio
is muted because of an incorrect Channel Guard tone, the radio will
display "LC" for "Locked Channel" and sound an alert tone until the
PTT is released.
This option minimizes interference on repeater systems but also allows a
radio to transmit during the repeater dropout timer.
Type 99 Disable After PTT
The radio can be programmed to automatically disable the Type 99
decoder after a transmission. This is to allow for a reply to the
transmission.
The Type 99 decoder may then be reset by pressing the Monitor/Clear
button, putting the microphone back on its hookswitch, or may be
programmed for an Auto-Reset time.
Ignition A+ Disable
The radio can be programmed to deny the use of the transmitter if there
is no voltage on the Ignition A+ line. If the PTT is pressed when there is
no Ignition A+, then the radio will display "nA" for "Locked Channel"
and sound an alert tone until the PTT is released.
The Ignition A+ is usually connected to the vehicle's ignition switch.
The intent of the option is to allow the use of the transmitter only when
the vehicle engine is running. This is meant to prevent the transmitter
from draining the vehicle battery. It also has an effect of preventing
unauthorized use of the transmitter.