RF-Transmissions Systems - A2D Solutions : Screen TV Transmitters Exciters : ANALOG/DIGITAL MMDS TRANSMITTERS

[RF-Transmissions Systems - A2D Solutions]

ANALOG/DIGITAL MMDS TRANSMITTERS

BROADCAST SYSTEMS

ANALOG / DIGITAL MMDS TRANSMITTERS

MAIN FEATURES

Video precorrection in analogue versions.
High linearity over the entire band.
AGC and ALC controls.
Excellent noise figure.
Agile channel programming from front panel.
Compliant with ETS 300 421 (DVB-S), ETS 300 429 (DVB-C) andETS 300 744 (DVB-T) specifications.
All uniform, hierarchical and non- hierarchical 2k, 4k and8k DVB-T and DVB H modes.
Payload up to 60 Mbits/s (DVB-S) and 155 Mbits/s (DVB-C).
Integrated network adapter.
Convectional or forced air cooling.
Multifunction digital display.

The MMDS systems in this series have been designed for the transmission of amplitude-modulated analogue television signals, with combined audio/visual amplification, or digital signals according to DVB-T, DVB-S and DVB-C standards. They are available both in separate amplification versions for eachindividual channel and in common amplification versions for combined groups of channels and in all frequency bands comprising of 1.5 to 24GHz.

The separate amplification systems consist of a transmitter and where necessary, of an RF amplifier which directly powers a radiant antennaor a power combiner in the case of multi channel transmission. The common amplification systems consist of an agile frequencymodulator, a low-level combiner and a broad-band amplifier (up to 400 MHz) that powers the transmission antenna.

The agile modulators enable the transmission channel to be changed directly from the front panel without any need for calibrationoperations. The high degree of linearity of the final stages and the optimization of the RF circuits guarantees low levels of intermodulation, thuspermitting the use of adjacent-channel systems.

SYSTEMS IN COMMON AMPLIFICATION
# of channels	Total output power @ 1 dB c.p.
1	2 W	5 W	25 W	50 W	100 W	200 W	400 W	800 W

6	15 dBm	19 dBm	26 dBm	29 dBm	32 dBm	35 dBm	38 dBm	41 dBm
12	12 dBm	16 dBm	23 dBm	26 dBm	29 dBm	32 dBm	35 dBm	38 dBm
16	11 dBm	15 dBm	22 dBm	25 dBm	28 dBm	31 dBm	34 dBm	37 dBm
24	9 dBm	13 dBm	20 dBm	23 dBm	26 dBm	29 dBm	32 dBm	35 dBm
31	5 dBm	9 dBm	16 dBm	19 dBm	22 dBm	25 dBm	28 dBm	31 dBm

Specifications and characteristics are subject to change without notice.

ANALOG/DIGITAL MMDS TRANSMITTERS BROADCAST SYSTEMS
	Item#
	DCD-2-500	CALL	0.00
	SCE-2-199	CALL	0.00
SCREEN SERVICE ANALOG/DIGITAL MMDS TRANSMITTERS