» Trasmettitori e ripetitori Tv ad alto rendimento, basse potenze.
* Full support standards and frequency bands
Full digital terrestrial television DVB-T and DVB-H modes support; SFN system integrated
Supported Analog Tv standards are B/G, I, D/K, M, N
Supported Frequency bands are BI 47-90MHz, BIII 174-250MHz and BIV-V 470-860MHz
* All frequencies locked to a single reference
The internal Oven Controlled Xtal Oscillator reference locks the I.F. Vision carrier, the I.F. Sound carrier, the Up converter L.O. and in Transposer the down converter L.O.. External reference input is provided for higher frequency stability.
* Plug-in modules for versatility and on-site easy maintenance
Series OST0310 TV Transmitter is composed by several plug-in modules mounted on a standard 3 U, 19" rack cabinet. To transform a transmitter into a transposer it's enough to replace just the first three plug-in modules ( IF modulator) with two plug-in modules (the transposer front-end).
* High reliability and ruggedness
The mains transformer provides safety isolated low voltage to high reliability switch mode power supplies, the R.F. power amplifiers flanged devices are directly mounted on the convection cooled rear heat sink. RF-overdrive, high VSWR, high HS temperature, Crow-Bar are standard protections.
* All the transmitters, both high and low power, are capable to easily and automatically operate in Dual mode, Analog TV and Digital DVB-T/H
The A.G.C.-A.L.C. Controller plug-in module includes the switch from analog to digital IF spectrum, automatically the IF analog pre-correction is by-passed to do not interfere with the digital pre-correction located into the digital modulator. E-Link interlock between exciter and amplifier, automatically provides the changing of the detector and measure from pick sink for the analog to the average one for the digital.
* Excellent spectral purity of synthesized L.O., allowing precision offset broadcasting
The very high spectral purity of the Local Oscillator allows broadcasting in precision offset mode, 1 Hz frequency resolution can accommodate the appropriate offset frequency according to all standards.
* Metering and telecontrols
Monitoring and alarm functions are available on the metering digital
display, parameters and telecontrols are provided on the RS 232 serial port.
SNMP and WEB remote control available.
Full digital terrestrial television DVB-T and DVB-H modes support; SFN system integrated
Supported Analog Tv standards are B/G, I, D/K, M, N
Supported Frequency bands are BI 47-90MHz, BIII 174-250MHz and BIV-V 470-860MHz
* All frequencies locked to a single reference
The internal Oven Controlled Xtal Oscillator reference locks the I.F. Vision carrier, the I.F. Sound carrier, the Up converter L.O. and in Transposer the down converter L.O.. External reference input is provided for higher frequency stability.
* Plug-in modules for versatility and on-site easy maintenance
Series OST0310 TV Transmitter is composed by several plug-in modules mounted on a standard 3 U, 19" rack cabinet. To transform a transmitter into a transposer it's enough to replace just the first three plug-in modules ( IF modulator) with two plug-in modules (the transposer front-end).
* High reliability and ruggedness
The mains transformer provides safety isolated low voltage to high reliability switch mode power supplies, the R.F. power amplifiers flanged devices are directly mounted on the convection cooled rear heat sink. RF-overdrive, high VSWR, high HS temperature, Crow-Bar are standard protections.
* All the transmitters, both high and low power, are capable to easily and automatically operate in Dual mode, Analog TV and Digital DVB-T/H
The A.G.C.-A.L.C. Controller plug-in module includes the switch from analog to digital IF spectrum, automatically the IF analog pre-correction is by-passed to do not interfere with the digital pre-correction located into the digital modulator. E-Link interlock between exciter and amplifier, automatically provides the changing of the detector and measure from pick sink for the analog to the average one for the digital.
* Excellent spectral purity of synthesized L.O., allowing precision offset broadcasting
The very high spectral purity of the Local Oscillator allows broadcasting in precision offset mode, 1 Hz frequency resolution can accommodate the appropriate offset frequency according to all standards.
* Metering and telecontrols
Monitoring and alarm functions are available on the metering digital
display, parameters and telecontrols are provided on the RS 232 serial port.
SNMP and WEB remote control available.
» Potenze: da 4W a 50W
Primary power: 230/240/127/110 V a.c. ±15%, 47 to 60 Hz
Power options: +24 V d.c. +20%, -10% +48 V d.c., ±20%
Power consumption: 100W max. full power, 40W max., st-by (4 W analog and 2W digital RF output power models) 200W max. full power, 40W max., st-by (10 W analog and 4W digital RF output power models) 250W max. full power, 40W max., st-by (50 W analog and 20W digital RF output power models)
Operating temperature range: 0°C to +45 °C
Storage temperature range: -10 °C to +70 °C.
Protections & alarms (depending on model): Over voltage (crowbar), over-current, high HS temperature, excessive reflected power, low output power.
Analog transmitter an transposer dimensions: Std. 19" frame, 482 W x470 D x 135 H, mm.
DVB-T transmitter dimensions: Std. 19" frame, 482 W x470 D x 180 H, mm.
Weight for 2-4 W output models: 12 kg. approx.
Weight for higher power output models: 15 kg. approx.
