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A set of channel amplifiers
Every channel amplifier is prepared by the manufacturer for a specified channel - placing an order it is necessary to give the number of the channel.
High-end channel amplifier from ALCAD (prepared by the manufacturer for a specified UHF channel - from C45 to C56). Designed for distributing signals in medium, large and very large MATV/SMATV systems. Due to exceptional selectivity (Cn+2 37dB) the amplifier eliminates signals out of the pass band. It is especially useful when within an installation there are modulators.
Very high maximum output level (2x123dB) allows to build large installations (up to 200 outlets) without using additional amplifiers.
In the case of large systems there should be also used CO-405/705 channel converters.
Very high maximum output level (2x123dB) allows to build large installations (up to 200 outlets) without using additional amplifiers.
In the case of large systems there should be also used CO-405/705 channel converters.
A headend should include:
- ZG-401 R90517 - the number of the amplifiers is the same as the number of UHF channels used,
- ZG-601 R90538 - the number of the amplifiers is the same as the number of VHF channels used,
- ZG-201 R90512 - 1pc,
- AS-102 R90500 - 1pc for 12 ZG amplifiers,
- ZP-002 R90552 - the number is the same as of ZG channel amplifiers less the number of antennas,
- RM-075 R90504 - 2pcs,
- frame/s - see above.

Typical gain characteristics of ZG channel amplifier - the markers define one channel

Gain characteristics of two ZG channel amplifiers (in series)

Return loss characteristics
Specifications
Name | ZG-401 | |
Code | R90517C | |
Frequency range | ch. MHz | C 45 - C 56 662 - 758 |
Gain | dB | 53 |
Bandwidth | MHz | 8 |
Gain adjustment | dB | 20 |
Max. output signal level according to | dBuV | 2x123.5 |
Selectivity (Cn+2) | dB | 37 |
Selectivity (Cn+3) | dB | 60 |
Noise figure | dB | 6 |
Connectors | IEC 9.5 | |
Power | V/mA | +24/75 |
Weigh | kg | 0.40 |
Operation temperature | °C | -10...+65 |
Housing (IP class) | IP20 | |
Dimensions (L x W x H) | mm | 196x76x32 |