The new ST Series of Digital TV Transmitters is fully compatible with the international DTV standarts (DVB-T, ATSC, ISDB, etc..) and suitable for SFN (Single Frequency Network) and MFN (Multi Frequency Network) applications. The ST Series has an output power range from 5 W to 200 W in digital operation. The transmitters are fully broadband.
The ST Series is equipped with a "high-performance" digital modulator fully and easily configurable to meet all the requirements of the DTV standards. Full transmitter metering, control, setting and system diagnostic available in the front panel and (optinal) remotely.
Key Features
Full compatibile with DVB-T, ATSC, ISDB, etc.
MFN and SFN operationFull broadband
The spectrum bandwidth may be user configured to or 6 or or 8 Mhz as required.
A perfectly clean spectrum i the adjacent channels and an excellent modulation linearity
Very low phase noise oscillators (The BER and MER are optimized)
Critical mask and non-critical mask filters available
Single 220V power supply
Specifications
ST 5
ST 50
ST 100
ST 200
Operating Frequency Range
470 - 860 MHz
Output Power
5 W rms
50 W rms
100 W rms
200 W rms
Output Connector
N type (others on request)
7/16" (others on request)
Output impedance
50 Ohm
Output Frequency stability
+/- 1ppm with internal reference
Output Level stability
+/- 0.5 dB
Frequency response
+/- 0.5 dB (ref. to centre frequency)
Harmonic and Spurious
< -60 dBc
Shoulder attenuation
> 45 dB
MER
> 42 dB
Spectrum Polarity
Inverted / not inverted - selectable by front panel menu
Output bandwidth
5 , 6 , 7 , 8 MHz
Network system adapters included in digital modulator
MFN or SFN
Metering
Forward and reflected power, DC voltages and currents
Alarms
VSWR, over temperature, cooling system failure, overdriving, Idc
