RF-Transmissions Systems - A2D Solutions : Screen TV Transmitters Exciters : 1 kW ps to 1.3 kW ps TRANSMITTERS and TRANSPOSERS

[RF-Transmissions Systems - A2D Solutions]

1 kW ps to 1.3 kW ps TRANSMITTERS and TRANSPOSERS

TV TRANSMITTERS AND TRANSPOSERS

TRANSMITTERS and TRANSPOSERS
from 1 kW ps to 1.3 kW ps

MAIN FEATURES

Modular construction.
Forced air cooling.
AGC and ALC controls.
3-slope linearity precorrection.
Excellent noise figure.
LDMOS technology in UHF versions.
Digital ready.
Channel changing 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 1 kW transmitters and transposers are the result of continuous technical research and careful selection of materials. The units in this series consist of one or two power amplifiers coupledtogether by means of a special patented system that allows low lossesand excellent linearity over the entire band, as well as guaranteeingthe continuity of duty even in cases of faults in the amplificationchain. Each individual unit is internally redundant both in its powersupply circuits and in its amplification and cooling circuits. A version with double exciters and automatic switch-over is available as well.

The control and protection circuits allow the display of all operatingparameters of the unit: direct peak output and total reflected power,also of each individual stage, power supply voltage and absorbedcurrent of each amplifier module, temperature of internal heatsinks,visualization of alarms, threshold level of the protection circuits,and restore attempts among others.

In the case of use of the amplifiers for the transmission of digitaltelevision signals, the resulting power reduction is extremely limitedthanks to the high degree of linearity and to the optimization of theRF circuits. A series of rear-mounted connectors permit remote monitoring of the unit’s operating conditions.

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
132FB	VHF I	1 x 15 RU	1	1.3 kW	320 W	500 W
132FM	VHF I	1 x 30 RU	2	1.3 kW	320 W	500 W
132TB	VHF III	1 x 15 RU	1	1.3 kW	320 W	500 W
132TM	VHF III	1 x 30 RU	2	1.3 kW	320 W	500 W
102UB	UHF	1 x 15 RU	1	1 kW	250 W	400 W
102UM	UHF	1 x 30 RU	2	1 kW	250 W	400 W
132UB	UHF	1 x 15 RU	1	1.3 kW	400 W	600 W

¹ SCTSeries = Analog transmitters
SCR Series = Transposers

Specifications and characteristics are subject to change without notice.

1 kW ps to 1.3 kW ps TRANSMITTERS and TRANSPOSERS TV TRANSMITTERS AND TRANSPOSERS
	Item#
	SCT-132FB	CALL	0.00
	SCT-132FM	CALL	0.00
	SCT-132TB	CALL	0.00
	SCT-132TM	CALL	0.00
	SCT-102UB	CALL	0.00
	SCT-102UM	CALL	0.00
	SCT-132UB	CALL	0.00
SCREEN SERVICE 1 kW ps to 1.3 kW ps TRANSMITTERS and TRANSPOSERS