14MM-AT440 - Quad Single-Channel Amplifier, AGC plus SAW Filter In and Out

Quad Single-Channel Amplifier, AGC plus SAW Filter In and Out

14MM-AT440

Headend Equipment

Matchmaster has a full range of Headend Equipment from entry level to complex systems, including engineering support and system designs. Matchmaster can offer simple Channel Filters with AGC through to complex DVB modules for any type of broadcast including Encoders, Modulators & Transmodulators for DVB-T, DVB-C, DVB-S/S2, IP, ASI, SDI, FM and many more.
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Features and Benefits

  • TV channel amplifiers tunable in UHF range
  • SAW filters provide a high selectivity processing of digital and analog channels
  • Integrated LTE signal suppression filter
  • Each section has a built-in AGC system and an independent regulator of output level
  • built-in indicators and push buttons allow operatively to set required parameters
  • DC feeding for preamplifiers through RF input

Specifications

Turning Range of Channels 470-790MHz
RF Input TV Standard DVB-T*
Channel Bandwidth 8MHz
Level/Impedance 50-75dBµV/75 Ohm
Frequency Range of RF Distribution 47-790MHz
Loop Through Gain 0 ± 1.5dB
Return Loss >10dB
RF Output Level/Impedance Typical 82dBµV/75 Ohm
MER of DVB-T Signal ≥36dB (input signal MER 38dB)
Frequency Range of RF Combining 47-2150MHz
DC Pass Through 0.3A
Combining Through Loss Terr/SAT 1.5/2.5dB
Level Adjustment Range**** 0 ÷ -10dB by 1 dB step
Return Loss ≥10dB
Noise Figure 8dB
Selectivity, typical 40dB ±2MHz from 8MHz Bandwidth Border
Offset** ±0.25MHz by 0.125MHz step
Spurious Signals Level ≤-55dBc
Flatness of Channel Bandwidth ±1.5dB
DC Feeding for External**** 12V 0.1A max
Current Consumption*** 12V 0.75A
Operating Temperature Range 0-50°C
Dimensions 198 x 107.5 x 48.5mm
* 21-69 channels for at420 by G standard, 20-75 channels for at421 by Au standard, 21-60 channels for at440 by G standard
** the offset is used for fine tuning of the channel frequency response
*** without external DC loading
**** software control