2.5 kW ps TRANSMITTERS and TRANSPOSERS | | |
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| MAIN FEATURES | - Modular construction.
- Forced cooling.
- AGC and ALC controls.
- 3-slope linearity precorrection.
- Excellent noise figure.
- LDMOS technology in UHF versions.
- Digital ready.
- Channel change from front panel (optional).
- Pre-set for precision OFFSET.
- Multifunction digital display.
- Soft-start circuit.
- Low power consumption.
- Economy circuit in case of input signal lack.
- SAW vestigial filter.
- Incorporated power limiter.
- Sync restore (SCT).
- Automatic white level and sync limiter (SCT).
- Multistandard modulator (SCT).
- Available in stereo/dual sound versions.
| Screen Service’s continuous ongoing technical research has made possible the realization of this new series of television transmitters and transposers in 2.5 kW output power versions.
These units are available in VHF and UHF frequency bands and inultra-compact versions or with redundant amplifiers, with single anddouble exciters in order to satisfy every need.
The excellent linearity of the stages guarantees optimal performance,low power de-rating when amplifiers are used with digital signals andlow power consumption.
Each individual unit within the system is equipped with power supplyand protection circuits as well as independent controls to ensure thehighest levels of reliability and durability in the system.
A main control panel collects data from all system components andfurnishes operating parameters through a practical display, sendingthem to interfaces for remote monitoring, available for different communication protocols. | | |
MODEL-SPECIFIC DATA
| Model | Output band | Dimensions | Number of amplifiers | Nominal analog output power (p.s.) | Digital output power (rms) withoutfilter (Shoulders -36 dB @ F0 ± 4.3 MHz) | SCT, SCR ¹ | | | | | DVB-T | ATSC | 252FB | VHF I | 1 x 30 RU | 2 | 2.5 kW | 640 W | 1000 W | 252TB | VHF III | 1 x 30 RU | 2 | 2.5 kW | 640 W | 1000 W | 202UB | UHF | 1 x 15 RU | 1 | 2.5 kW | 625 W | 1000 W | 202UM | UHF | 1 x 30 RU | 2 | 2.5 kW | 625 W | 1000 W |
¹SCT Series = Analog transmitters SCR Series = Transposers
Specifications and characteristics are subject to change without notice.
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