Microyal Model 2500MB

860MHz Standard Adjacent Channel Modulator


Microyal 2500MB 860MHz, standard adjacent channel modulator, is applicable for the CATV headend system. It's embedded with broadband amplifiers and outputs the fixed channel. With a good price and performance ratio, it's the best choice of multiple channels adjacent CATV headend system. This equipment adopts the special IC to modulate the frequency to IF, after being mixed, amplified and filtered, it outputs the fixed channel range from 47~860MHz. By using the high reliable IF SAW filter, it performs stably.

Features:

  • Adjacent Channel Capability
  • Spurious Harmonics 60dB up
  • With Saw Filter for Vestigial Sideband Response
  • +113dBμV RF Output Capability at Low Distortion

Specifications:

RF

 

Output Frequency Range

47MHz~860MHz (Fixed Channel );

 

Output,PAL D(Ch1~56,z1~z43);
PAL B/G (E2~E69,S1~S41)

Output Level

113dBμV

Output Level Range

0-10dB (Adjustable)

Video/Audio Carrier Power Ratio

1020dB (Adjustable)

Output Impedance

75Ω

Spurious Harmonics

60dB

Frequency Accuracy

10KHzUHF;5KHzVHF

Audio Frequency

5.5MHz2KHz

RF Output Return Loss

10dBUHF;12dBVHF

Video

 

Input Level

1.0Vp-p for 87.5% Mod.

Input Impedance

75Ω

Differential Gain

5%@ 87.5% Modulation index

Differential Phase

5@ 87.5% Modulation index

C/L Delay

45 ns

Frequency Response

2dB

Modulation Range

090% (Adjustable)

Video S/N Ratio

55dB

Audio Input Level

1Vp-pfor 50KHz Dev

Audio Harmonic Distortion

0.8%

Audio Frequency Response

0.5dB

Input Impedance

600Ω

Audio S/N Ratio

57dB

Audio Pre-emphasis 50μs
General  

Operation Temperature

040C

Relative Humidity

85%

Atmospheric Pressure

86~106Kpa

Power Supply

AC 220V10%, 502Hz, 15W

Dimensions

483mm210mm45mm

Weight

3Kg