Microyal Model 4000MUV

Professional Agile Adjacent Modulator

Microyal 4000MU-V professional agile IF modulator is constructed with proprietary SAW filter that achieves true VSB response and IF modulation signal processing, the spurious harmonic is better than 60dB, with outside channel filter, spurious harmonic could be above 70dB. Both video and audio carriers are PLL controlled to ensure accuracy and stability. Dual PLL frequency lock to guarantee high stability. RF amplification circuit module adopted to realize low non-linear distortion and high output level. With build-in micro - processor, 100 channels can be programmed and two LED displays on front panel. It has the features of last channel memory, frequency fine tune between ±4MHz; RF output level is above high audio and video linear. It can be used in medium-large CATV system independently or used with Microyal-3000MC, Microyal-2500MB, Microyal-2000MB or other modulator together to form a medium - large CATV system, especially used in expansion and program enhancement in 48MHz~870MHz CATV system.

Specifications:

Output Frequency Range

48MHz~870MHz Agile Channel Output,
(PAL D or PAL B/G )

Output Level

115dBμV

Spurious Harmonics

≥60dB

RF Output Return Loss

≥12dB（UHF）; ≥10dB（VHF）

Carrier Frequency Accuracy

≤5KHz（VHF）; ≤10KHz（UHF）

Carrier Frequency Fine Tune

±4MHz (0.5MHz Step)

Video Modulation Degree

87.5%@Video input level 1Vp-p

Input Impedance

75Ω

Differential Gain

≤3%@ 87.5% Modulation index

Differential Phase

≤3°@ 87.5% Modulation index

C/L Delay

≤45ns

Video Flatness

≤2dB

Video S/N Ratio

≥52dB

Audio Frequency

6.5MHz±2KHz (PAL D) 5.5MHz±2KHz (PAL B/G)

Audio Pre-emphasis

50μs

Audio Carrier Modulation Deviation

±50KHz @ Audio input level is 0dBm±6dB

Audio Harmonic Distortion

≤0.8%

Audio S/N Ratio

≥58dB

Operation Temperature

0～40°C

Relative Humidity

≤85%

Atmospheric Pressure

86Kpa~106Kpa

Power Supply

AC 220V±10%, 50Hz±2Hz, 20W

Dimensions

483mmX320mmX45mm

Weight

4Kg