| Description
Adopt SOT-115 encapsulate CATV dedication RF module in forward path and low-noise micro push-pull circuit in return path. Have good index, small consumption, high reliability and performance to price ratio, suitable for medium and small CATV bi-directional network.
Feature
(1) Adopt low-noise micro tube circuit or SOT-115 encapsulate CATV dedication RF module in forward path, steady output level, well Non-linear; adopt low-noise micro tube push-pull circuit in reverse path, small distortion and high signal to noise ratio.
(2) Plug-in dual-filter and fixed (or VAR) equalizer and attenuator, plug-in output tap, science detector is rational, testing conveniently.
(3) Waterproof cast-aluminum shell, high-reliable power switching, tight anti-thunder system; have guaranteed that the equipment can work steadily in succession for a long time in the abominable environment of field.
|
Parameter |
Unit |
OPCA-8630L |
|
Forward Path |
|
Frequency Range |
MHz |
(47) 87~860 |
|
Rated Gain |
dB |
30 |
|
Min Fill Gain |
dB |
≥30 |
|
Rated Input Level |
dBμV |
70±2 |
|
Rated Output Level |
dBμV |
102 |
|
Flatness in Band |
dB |
±1 |
|
Noise Figure |
dB |
≤10 |
|
Return Loss |
dB |
≥14 |
|
C/CTB (84 PAL-D) |
dB |
≥58 |
|
C/CSO (84PAL-D) |
dB |
≥56 |
|
Carrier to Alternative noise ratio |
% |
≤2 |
|
Gain Stability |
dB |
≤± 1.0 |
|
Voltage Stroke |
KV |
5 |
|
Return Path |
|
Frequency Range |
MHz |
5~(30)65 (or specified by user) |
|
Rated Gain |
dB |
15 |
|
Flatness In Band |
dB |
±1 |
|
Noise Figure |
dB |
≤12 |
|
Return Loss |
dB |
≥16 |
|
MAX Output Level |
dBμV |
≥110 |
|
CSO inter-modulation ratio |
dB |
≥52 |
|
Carrier to Alternative noise ratio |
% |
≤2 |
|
General Response |
|
Power Voltage(50Hz) |
V |
A:AC (165～250)V ；B： AC(35～60)V |
|
Power consumption |
VA |
8 |
|
Impulse Resisting Voltage |
Kv |
＞5 |
|
Dimension |
mm |
178x100x55 |
Test condition
At the range of 750MHz (112.25~743.25MHz) when testing the C/CTB and C/CSO, set 79 PAL-D imitate TV channels signal. Set 93PAL-D imitate TV channels signal at the range of 862MHz (112.25~855.25MHz).Choose f1=65MHz, f2=63MHz and f3=57MHz to test when measuring index of max output level in up go transmission. The index of “Carrier to Second Order Inter-modulation Ratio” is tested under the condition of 110dBuV output level, and choose f1=10MHz, f2=60MHz and f3=50MHz three point to test.
Block Diagram
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