CATV Trunk Amplifier feature:
1. CATV Amplifier adopt low noise Philips or NEC imported module, power doubler module or Gallium Arsenide module output, non-linear index is high.
2. Equalizer, attenuator have fixed and adjustable structure for selection.
3. Output splitter or coupler can plug change to make engineering debug more agile.
4. Forward and reverse fore-and-aft have independent test port, easy to debug.
5. Return channel adopt Philips or Motorola amplify module, good quality duplex filter, plug fixed attenuators and equalizers, makes it high C/N, easy to debug.
6. High reliable switch power and strict anti-thunder system fit for safe steady work in worse weather.
7. Suitable large or middle-size bi-directional network main trunk signal transmission, can substitute imported and famous brand machine.
ITEM
| UNIT
| PARAMETER
|
WA8227-XX
| WA8230-XX
| WA7227-XX
| WA7230-XX
| WA5227-XX
| WA5230-XX
|
Down Transmission
|
Frequency Range
| MHz
| 47/87-860
| 47/87-750
| 47/87-550
|
Rated Gain
| dB
| 27
| 30
| 27
| 30
| 27
| 30
|
Min Fill Gain
| dB
| ≥ 27
| ≥ 30
| ≥ 27
| ≥ 30
| ≥ 27
| ≥ 30
|
Rated Input Level
| dBµ V
| 72
|
Rated Output Level
| dBµ V
| 99
| 102
| 99
| 102
| 99
| 102
|
Flatness in Band
| dB
| ± 0.75
|
Noise Figure
| dB
| ≤ 10
|
Return Loss
| dB
| ≥ 16
|
C/CTB
| dB
| ≥ 67
| ≥ 61
| ≥ 70
| ≥ 62
| ≥ 74
| ≥ 66
|
C/CSO
| dB
| ≥ 64
| ≥ 60
| ≥ 66
| ≥ 62
| ≥ 68
| ≥ 64
|
Group Delay
| ns
| ≤ 10(112.25MHz/116.68MHz)
|
Signal to Hum Ratio
| %
| < 2
|
Gain Steady
| dB
| -1.0 - +1.0
|
Upgo Transmission
|
Frequency Range
| MHz
| 5 - 30/65
|
Rated Gain
| dB
| 12
| 16
| 20
| 24
|
Min Fill Gain
| dB
| ≥ 12
| ≥ 16
| ≥ 20
| ≥ 24
|
Max Output Level
| dBµ V
| ≥ 110
|
Flatness in Band
| dB
| ± 0.75
|
Noise Figure
| dB
| ≤ 12
|
Return Loss
| dB
| ≥ 16
|
Carrier to Second Order Intermodulation Ratio
| dB
| ≥ 52
|
Group Delay
| ns
| ≤ 20(57MHz/59MHz)
|
Signal to Hum Ratio
| %
| < 2
|
General Performance
|
Special Impedance
| Ω
| 75
|
Supply Voltage
| V
| A: AC(135 - 250)V: B: AC(35 - 90)V
|
Voltage Srtoke(10/700µ s)
| KV
| > 5
|
Consumption
| W
| 30
|
Dimention
| mm
| 340(L) × 220(W) × 160(H)
|
Flow Chart
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Prevail was founded in 2001, Hangzhou Prevail Optoelectronic Equipment Co., Ltd.Which is one of the earliest, largest, and most professional factory in CATV industry.
Our factory has been studying and developing different kinds of optoelectronic transmission equipments for HFC and FTTH networks since our foundation.Covering an area of over 15, 000 square meters, our factory boasts nearly 500 employees, 20% of whom have senior professional technique titles, eight assembling lines, and 21 testing and adjusting lines.
Our test instruments are mainly imported from the U.S.A (HP), which worth more than USD1.25 million.Some business institutes are set up both at home and abroad.
Our main products include HFC Optical Transmission&HFC Cable Transmission equipments.
Prevail always adheres to the "excellence, quality first" principle of the quality, taking the leading in passing ISO9001, ISO 14001, OHSAS18001, CE etc certifications.
