I-6
MDS 4790M (MPT 1411) I/O Guide
MDS 05-3628A01, Rev. B
Q
Quick start instructions. See inside front cover
R
Radio
accessories 5
description 1
display model number (PC command) 36
display serial number (SER command) 40
display software revision number (Software Revision
screen) 62
display transmitter state (LCD screen) 62
illustrated 2
key features 5
model number codes 6
model number codes, illustrated 6
removing antenna switch module 70
removing internal duplexer 68
removing or re-installing front panel 68
set date (LCD screen) 60
set time (LCD screen) 60
set/display active transceiver board (LCD screen) 61
set/display address (Unit Address screen) 57
set/display address (UNIT command) 44
using LCD to set functions 48
RADIO command (set/display active transceiver board) 38
Radio Selection screen 61
Receive attenuator, enable/disable (Receive Pad screen) 58
Receive Frequency screen 54
Receive Level screen 58
Receive Pad screen 58
Receive Signal Strength screen 61
Receiver specifications 73
Redundancy 3
Remote
Station, defined 7
Removing
antenna switch module 70
Antenna switch module, illustrated 70
assemblies 67
front panel 68
front panel, illustrated 68
internal duplexer 68
internal duplexer, illustrated 69
transceiver boards, about 67
REPEATER command (enable/disable repeater
configuration) 38
Repeater Mode screen 56
Repeater operation 4
illustrated 4
set/display (Repeater Mode screen) 56
Replacing
assemblies 67
transceiver board 67
Requirements for installation 8
RF propagation planning 74
RMA number (returning product for service). See inside rear
cover
RSSI
defined 8
display (LCD screen) 61
maximizing 21
theoretical signal strength, formula 76
RSSI, RSSI! commands (display received signal strength
indication) 38
RTU (Remote Terminal Unit)
command (enable/disable internal RTU) 39
defined 8
internal simulator 65
RX ALR LED 22
RX command (set/display receive frequency) 39
RX Timeout screen 56
RX timeout, set/display (RX Timeout screen) 56
RXLEVEL command (set/display audio receive level) 39
RXPAD command (enable/disable receive attenuator) 40
RXTOT command 40
S
S/N Ratio screen 61
SCD command (set/display soft carrier de-key delay) 40
Screens
Access Level screen 53
Active Radio Status 61
Alarm Masks 59
Backlight Intensity 59
Baud Rate/Format 54
Clear Logs 62
Clear-to-Send Delay 55
configuration 53–60
configuration, listed 49
Continuous Keying 56
Data Buffering 57, 58
diagnostic, listed 49
Display Contrast 59
displaying individual 48
Emphasis 54
Event Log 62
Key On Data 57
main 53
Manual Key 56
Menu Directory screen 53
menu directory, illustrated 47
menu flowchart 46
Modem 54
Output Power 54
Push-to-Talk Delay 55
Radio Selection 61
Receive Frequency 54
Receive Level 58
Receive Pad 58
Receive Signal Strength 61
Repeater Mode 56
RX Timeout 56
S/N Ratio 61
selecting a main menu item 47
selection arrow 47
Serial Number 62
Set Date 60
Set Owner Message 60
Set Owner Name 59
Set Time 60
Show temperature and Voltages 62
Soft Carrier De-Key Delay 55
Software Revision 62
start-up screen 53
toggle between display-only and configuration modes 48
Transmit Frequency 53
Transmit Gain 58
Transmit Level 58
