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User Manual
Rev. 2.0 - 27/01/20
TEX3500LCD
Operating frequency stability is ensured by a temperature-compensated reference
oscillator and is maintained by a PLL (Phase Locked Loop) system. The transmitter
will go into frequency lock within 30 seconds after power-on.
TEX3500LCD
can operate throughout the frequency bank with no need for
calibration or set-up.
An LCD on the front panel and a push-button panel provide for user interfacing with
the microprocessor control system, which implements the following features:
• Output power setup.
• Working frequency setup.
• Power output enable/disable.
• User-selectable threshold settings for output power alarm (Power Good
feature)
•
Measurement and display of transmitter operating parameters.
•
Communication with external devices such as programming or telemetry
systems via RS232 serial interface or I
2
C.
Four LEDs on the front panel provide the following status indications:
ON
,
LOCK
,
FOLDBACK
and
RF MUTE
.
The transmitter management firmware is based on a menu system. User has four
navigation buttons available to browse submenus:
ESC
, , , ed
ENTER
.
The rear panel features the mains input connectors, as well as audio input
connectors and RF output connector, telemetry connector, protection fuses and
two inputs for signals modulated onto subcarriers by suitable external coders, such
as RDS (Radio Data System) signals commonly used in Europe.
IMPORTANT:
The equipment works in three-phase, with star-center connection,
and can also be used in single-phase.
