Product Description
This model is a space saving and fixed channel modulator system. It consistsof 24 individual, vertically mounted, fixed frequency modulators and anefficient switching type power supply module. It is designed for 19” rackmounting.
Each modulator is SAW filtered and is factory set to the desired channel andproper offset. Precise frequency is maintained with PLL circuitry. It offers excellent video performance and high reliability in 4U rack.
Product Features
1 set can install 24 channels, which be able to be set within 47 MHz ~860MHz by user. Adjacent channel workable.
Individual function keys for each channel, simple operation.
High efficiency SMPS enable stable performance.
All the figures already pre-set in the factory. No further adjustment to the modulator in case of necessary.
Easy setup, Internal fans for cooling modulators
Only one RF output. No need combiner
Precise frequency control with PLL circuitry
Also available in NTSC,all PAL configuration
19” rack mountable.
Technical Parameters
Frequency Range | 47～860MHz (Any one channel) |
Output Level | ≥105dBμV |
Output Level Adjustment Range | 0～-20dB (Variable) |
Video to Audio Carrier | -10dB～-30dB adjustable |
Output Impedance | 75Ω |
Spurious Output Suppression | ≥60dB |
Frequency Accuracy | ≤±5KHz (VHF) , ≤±10KHz (UHF) |
Video Output Reflection | ≥12dB (VHF)； ≥10dB (UHF) |
Video Input Level | 1.0Vp-p (87.5% Modulation) |
Video Input Impedance | 75Ω |
Differential Gain | ≤5% (87.5% Modulation) |
Differential Phase | ≤5°(87.5% Modulation) |
C/L Delay | ≤45 ns |
Flatness | ±1dB |
Video Modulator Depth | 0～90% (Variable) |
Video S/N | ≥55dB |
Audio Input Level | 1Vp-p (±50KHz) |
Audio Input Impedance | 600Ω |
Audio S/N | ≥57dB |
Audio Pre-weighted | 50μs |
Power Supply | AC 110V/220V±10% 50Hz±2Hz，50W |
Working Temperature | 0～40℃ |
Dimensions | 19 Inch 4 U housing |
