User's Manual
Table Of Contents
- 1 REGULATORY AND SAFETY INFORMATION
- 2 PREFACE
- 3 SPECIFICATIONS
- 4 GENERAL INFORMATION
- 5 OPERATION
- 5.1 CONVENTIONAL STATION CONFIGURATIONS
- 5.2 ENCRYPTED STATION CONFIGURATIONS
- 5.3 MODES OF OPERATION
- 5.4 ENCRYPTION FORMATS
- 5.5 P25 CONVENTIONAL CONFIGURATIONS
- 5.6 PROGRAMMABLE FEATURES FOR CONVENTIONAL STATIONS
- 5.6.1 Conventional Stations (Setup)
- 5.6.2 Main Station Data
- 5.6.3 Push-to-Talk Options
- 5.6.4 Other Potentiometer Settings
- 5.6.5 Carrier Control Timer
- 5.6.6 Squelch Tail Elimination
- 5.6.7 Drop Out Delay Timer
- 5.6.8 Control Shelf Options
- 5.6.9 Station Remote Control
- 5.6.10 Auxiliary Control Relay
- 5.6.11 Squelch Operated Relay
- 5.6.12 Channel Guard Monitor
- 5.6.13 System Module - Digital Signal Processing
- 6 MASTR III ADC STATION DESCRIPTION
MM102558V1 R1A
For Battery Alarm tones to be passed down the wire line, it may be necessary to install
R112 on the System Module. Refer to the System Module schematic for installation
instructions.
5.6.8.3 Logic Standby
When enabled, Logic Standby will restore certain station features in the event of a power failure or station
reset. The features that will be restored are: CG Monitor, Remote PTT, Scan, Priority Scan, Aux Relay
Settings, Morse Code ID, Main Receiver, 2
nd
Receiver, External PTT and Voice Guard.
5.6.8.4 Intercom
When enabled, the intercom feature built into the T/R shelf programming may be set to define the specific
combination of line audio, receiver audio and handset audio that is routed to the station speaker. This is a
useful tool for the service technician and other on-site operations. After enabling the feature in software
by selecting Yes, refer to the software Help screens for detailed programming configuration information.
5.6.8.5 Bandwidth
The MASTR III ADC shelf is capable of transmitting and receiving signals modulated by two different
bandwidths: 12.5 kHz and 25 kHz. This allows the station to meet regulatory and technical requirements
of the many different digital and analog and channel spacing/frequency allocation schemes.
5.6.8.6 Receiver Channel Scan
The station may be enabled to scan selected receiver frequencies. Once enabled, each channel
programmed in the main programming screen may be added to a scan list by selecting Yes or No. The
scan option may be configured for certain features using MASTR Station Editor (MSEDIT) programming
software. Features such as Scan Enabled on Power-up, Priority Scan, Revert Scan, Search Rate and Hang
Time are just a few configuration features available through MSEDIT.
5.6.8.7 Voting
The MASTR III ADC station may be configured for voting operation. Voting is the practice of using a
Voting Selector with satellite receivers to form a receiver voting system. The satellite receivers are
located so that one or more of the receivers will receive a good quality signal from a Personal or Mobile
two-way radio transmitting from anywhere in a specified operating area. Each receiver output is
connected to a centrally located Voting Selector by an RF link, a Tone or a DC control line, or an E&M
pair. The Voting Selector provides continuous voting for the satellite receivers and selects the receiver
with the best audio quality.
5.6.9 Station Remote Control
The System Module in the T/R Shelf can be remotely controlled by DC Remote control or Tone Remote
control. DC Remote and Tone Remote control signals may allow a user to initiate a transmission, disable
RX Channel Guard, listen to received audio, select between two operating channels, and select or deselect
certain T/R Shelf functions.
Configuration and operational features for Two-wire, Four-wire, DC Remote control and Tone Remote
control signaling are described in the following sections.
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