User Manual

Installation and Operator Handbook Programming and Configuration
AMX-MA-00657 Issue: 1.02 (USA) Page 13
Mode: Click as required to select the operating mode for the channel between basestation and
repeater. In repeater mode, all valid inbound signals are repeated on the outbound channel. In base-
station mode, valid inbound signals are not repeated.
Control: There are four functions/options that may be selected, Local control, Tone control, Line
control and None.
Local control: is via a DTMF microphone connected to the DMR-25 Transceiver Module audio
connector elsewhere this is described as the front panel connector. DTMF tones can be used to
configure/control the radio.
Tone control: is via an industry standard tone remote control unit connected to the DMR-25
Interface Module line connector. Tone remote tones are used to control the radio.
Line control: uses the rear panel audio port for control but disables tone remote signalling. When a
4-wire interface is used, control is achieved by E+M signalling. When a 2-wire interface is used,
the radio is capable of making and receiving PSTN calls. In this mode call setup, dialing and
cancellation is controlled by the subscriber radio using DTMF or Project 25 signalling.
None: no control option is active.
NOTE
Control options are only available on DMR-25 Radios fitted
with a controller module. Control options will be ignored by
radios which are fitted with the Timing Module as a
replacement for a Controller Card.
Signal Type: Select the channel mode from the list of Analog, Project 25 and Autosense modes.
Bandwidth: This setting determines the peak deviation of the transmitted signal, and the channel
bandwidth used in the receiver. Select the required channel bandwidth from the list, to set
wideband or narrowband analog or autosense operation. Wideband operation should be selected
for use with analog systems employing 25 kHz or 30 kHz channel spacing. Narrowband operation
should be selected for use with analog systems employing 12.5 kHz or 15 kHz channel spacing.
Squelch System: Select the type of analog squelch required between CTCSS and CDCSS.
Group Enable: When selected, the squelch system selection is disabled and a Squelch Group is
required.
Squelch Group: Select from a list of Squelch Groups, which are defined in Program/Squelch
Groups see section 4.5 Squelch Groups . The Squelch System will determine which analog
squelch is used in a squelch Group.
Link Radio: Select to enable the Transceiver Module for cross-band and cross-mode operation.
This selection will be disregarded by the transceiver if it is not licensed to support Link Radio. See
Section 4.6 License Features.
Enable Front Panel PTT: Select to permit transmissions to be made from the microphone
connected to the DMR-25 Transceiver Module Front Panel audio connector.
NOTE