Fixed Frequency CATV Modulator
|
Frequency
|
47-862MHz
|
|
OutputLevel
|
≥105dBμV
|
|
OutputLevel Adj.Range
|
0--20dB(Adjustable)
|
|
A/VRatio
|
-10dB--30dB(Adjustable)
|
|
OutputImpedance
|
75 Ω
|
|
Spurious Output
|
≥60dB
|
|
Frequency Accuracy
|
≤±10KHz
|
|
OutputReturnLoss
|
≥12dB(VHF);≥10dB(UHF)
|
|
VideoInputLevel
|
1.0Vp-p(87.5%Modulation)
|
|
InputImpedance
|
75 Ω
|
|
Differential Gain
|
≤5%(87.5%Modulation)
|
|
DifferentialPhase
|
≤5°(87.5%Modulation)
|
|
GroupDelay
|
≤45ns
|
|
VisualFlatness
|
±1dB
|
|
Depth Adjust
|
0-90%
|
|
VideoS/N
|
≥55dB
|
|
AudioInputLevel
|
1Vp-p(±50KHz)
|
|
AudioInputImpedance
|
600 Ω
|
|
AudioS/N
|
≥57dB
|
|
AudioPre- emphasis
|
50μs
|
|
Rack
|
19Inchstandard
|
Specification:
|
Frequency |
47～862MHz |
|
Output Level |
≥100dB μV |
|
Output Level Adj. Range |
0～-20dB (Adjustable) |
|
A/V Ratio |
-10dB～-30dB (Adjustable) |
|
Output Impedance |
75 Ω |
|
Spurious Output |
≥60dB |
|
Frequency Accuracy |
≤±10KHz |
|
Output Return Loss |
≥12dB(VHF); ≥10dB(UHF) |
|
Video Input Level |
1.0Vp-p(87.5% Modulation) |
|
Input Impedance |
75 Ω |
|
Differential Gain |
≤5%(87.5% Modulation) |
|
Differential Phase |
≤5 °(87.5% Modulation) |
|
Group Delay |
≤45 ns |
|
Visual Flatness |
±1dB |
|
Depth Adjust |
0～90% |
|
Video S/N |
≥55dB |
|
Audio Input Level |
1Vp-p (±50KHz) |
|
Audio Input Impedance |
600 Ω |
|
Audio S/N |
≥57dB |
|
Audio Pre- emphasis |
50 μs |
|
Rack |
19 Inch standard |
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