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
OVERVIEW Marti GTX / GRX
BROADCAST STL FAMILY SERIES
VHF / UHF & SHF Bands
General Description
The Marti GTX/GRX series STLs are the result of experience gained by Broadcast Electronics during
years of producing FM broadcast equipment, transmitters, STL and stereo encoders.
These radio links were specifically designed to comply with the latest international standards and
the requirements of advanced broadcasters, meeting tighter specifications than usually required, at
an affordable cost.
Great care was spent into producing a Hi-Fi-quality modulated signal, with low residual noise and
distortion. The RF signal is also free from spurious and harmonic components to a higher degree than
required by USA, CCIR, European, and most other national standards.
To obtain this outstanding performance, Broadcast Electronics strongly recommend relying on
qualified personnel to install and verify the equipment which makes up the radio station, i.e. the STL,
the transmitters and the power amplifiers, the corresponding antennas, cables and connectors. This
will assure to achieve the best performance and stability in time.
To this aim, Broadcast Electronics especially recommend that their equipment should not be
tampered with by unskilled personnel and its after-sale service is available to customers for any
technical problem. Before proceeding to installation, please carefully read at least the general
installation part of this manual, to gain confidence with the equipment.
This equipment is very stable and changes to the internal pre-setting other than frequency and few
other options are not usually required, however if they are, once again they must be done by skilled
personnel, with proper instrumentation and service documentation. Improperly tampering with the
settings may harm the apparatus or jeopardize the guaranteed performance.
THIS EQUIPMENT COMPLIES WITH ALL RELEVANT EMI/EMC AND SAFETY REQUIREMENTS, ETSI
EN300454-1/2 AND ETS301489-01/11 STANDARDS.
NO INTERNAL ADJUSTMENT OR PRESETTING IS REQUIRED DURING NORMAL OPERATIONS. THE
APPARATUS SHALL BE PROPERLY EARTHED AND OPERATED WITH ALL COVERS CLOSED WITH
ALL FASTENTERS TO PREVENT ELECTRICAL HAZARDS AND COMPLY WITH THE EMI & EMC
STANDARDS.