TOUCH30S
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User Manual
Rev. 2.1 - 11/06/03
4. General Description
The TOUCH30S is an exciter for FM audio broadcasting able to transmit in the
band between 87.5 and 108 MHz with an output RF power adjustable up to a
maximum of 30 W
The TOUCH30S can be used like exciter of an amplifier of greater power, or like
transmitter directly in antenna.
4.1 Main Characteristics
•
State of the art performances at moderate cost .
•
Controlled through microprocessor - programmable externally through PC via
RS232.
•
Extremely low distortion THD, IMD & TIM (Transient Intermod. Distortion)
specified.
•
Very silent operation (S/N).
•
Highest stereo performances: separation 80 Hz*15 kHz typ. 65 dB (30*80Hz
typ. 56dB).
•
L, R (balanced & unbalanced), RDS / SCA, AUX, MPX.
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0, 50 o 75us preemphasis .
•
Easy to handle: comprehensive monitoring of all relevant parameters and setting
values.
•
Modular construction, easy to customise and fast to test. Auxiliary functions as
special encoders on request. Smartly designed to minimise spare parts
•
All solid state using RF Power Mosfet in output module, LDMOS in driver stage.
•
Automatic Power Control (APC) maintains required RF power at 45*C & at
1.3:1 VSWR. Higher value of VSWR causes the power reduction.
•
Lightweight RF power module, can be removed from mainframe and replaced
in less than 5 minutes.
•
Nominal RF o/p level = 30W / typical max power in excess of 35 W. Power
output continuously adjustable.
•
Built-in RF harmonic filter and true wattmeter.
•
High spectral purity: > -100 dBc spurious, >-75dBc harmonics (typ.).
•
Provides the following outputs: RF, RF monitor, 19 kHz to lock RDS, RS232,
RS485 remote alarm, and remote memory setting. Rds available.
•
AC mains in switching mode selectable between 95 and 130 V
ac
beyond 195
and 265 V
ac
.
Summary of Contents for TOUCH30S
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