Maintenance Manual
Table Of Contents
- 1 OVERVIEW Marti GTX / GRX
- 2 TECHNICAL SPECIFICATIOINS
- 3 INSTALLATION
- 4 SET UP
- 4.1 Password Organization
- 4.2 Factory Default Passwords
- 4.3 Display Menus and Navigation
- 4.3.1 START & DEFAULT FIELDS
- 4.3.2 TRANSMITTER FIELDS & MENU TREE
- OPERATION MENUS
- Field #02: Direct & Reflected Power
- Field #04: Multiplex Signal Level (Output Modulation)
- Field #05: Left & Right Signal Level in dB
- Field #06: L & R Signal Level / Analog Meter
- Field #07: RDS / SCA Auxiliary Modulation Level
- Field #09: Internal Voltages
- Field #10: Temperature, Data and Clock
- SETUP MENUS
- Field #21: Local/Remote control setup
- Field #22: Transmission Frequency setup
- Field #23: Output Power setup
- Field #24: LF Modulation Input Level setup
- Field #25: Auxiliary Input Level setup
- Field #26: Limiter setup
- Field #27: Transmission Mode, and Pre-emphasis Setup
- Field #28: Reference Deviation setup
- Field #29: Display Contrast setup
- Field #30: Time & Date setup
- Field #31: Elapsed Time
- Field #32: Password Management
- Field #33: Alarm Setup and Display
- Field #34: I/O Pin Allocation and Logic Level setup
- Field #35: Synthesis setup
- Field #37: Ethernet & Lan setup
- 4.3.3 RECEIVER FIELDS & MENU TREE
- OPERATION MENUS
- Field #02: Receiver Frequency
- Field #03: Received RF Field and Muting
- Field #04: MPX Modulation and Reception Field
- Field #04Modulation of the Multiplex Signal
- Fields #05 & #06: L and R Decoded Output Levels
- Field #08: Stereo Pilot Frequency level
- SETUP MENUS
- Field #22: Frequency setup
- Field #24: LF Output Level setup
- Field #25: Receiver Muting setup
- Field #26: De-emphasis setup
- Field #28: Optional Boards Detection
- Field #33: Alarm setup and display
- Field #34: I/O pin allocation and logic level setup
- Field #36 Left & Right Level
- Field #37 Headphone Volume
- Field #39 Serial Number
- 5 SERVICE & CHASSIS DIAGRAMS
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©2021 Broadcast Electronics
• SETUP MENUS
From this menu branch, equipment parameters may be setup or changed. To enter this section and
make changes, Level 2 is required. Some fields are factory set and not intended to change once the
product has shipped.
• Field #21: Local/Remote control setup
SETUP CONTROL
LOCAL & REMOTE
The equipment may be controlled either locally from the front panel or remotely from the I/O lines in
the rear port. It is possible to configure the control as shown above, (Remote and Local) or only by
Local or by Remote only. In this case the correspondingly displayed options will be:
LOCAL ONLY or REMOTE ONLY
If the apparatus is locked on remote, any attempt to access the setup menu will show the following
message:
REMOTELY LOCKED
PRESET TO LOCAL!
Pushing "Enter" twice in succession on the knob will access the control Screen and the "REMOTELY
LOCKED" line will be selected, allowing it to be changed to "LOCAL & REMOTE" (default setting) or
"LOCAL ONLY", if requested..
• Field #22: Transmission Frequency setup
FREQUENCY SETUP
232.500 MHz
Frequency is set in two steps on either side of the decimal point. In the first step, the integral part of
the frequency to the left of the decimal point. The second step is to the right of the decimal point.
• Field #23: Output Power setup
RF POWER SETUP [W]
Set:20.0 Out:20.0
This field permits changing the RF output in accordance with the licensed power level. Two values
are shown: the programmed level (Set) and the actual level, (Out). Small variations between Set and
Out may be allowed to match the licensed power.
.
• Field #24: LF Modulation Input Level setup
MPX 75.0kHz + 0.0dB
Nom.input = + 6.0dBm