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AM2000 Encoder Modulator

AM2000 1RU PAL Television Modulator offers a flexible, compact and all-in-one device which converts V/A signals into RF output signals. AM2000 PAL signal Modulator is a high-quality, microprocessor controlled modulator used in large sized broadband networks.

•    1 RU compact platform suitable for various video headend applications

•    Cost effective solution with low cost per channel

•    Adjacent channel operation ( Fixed: Any fixed channel within 48 MHz to 861 MHz )

•    In accordance to adjacent frequency design, no interference between adjacent channel

•    Independent oscillation in IF 38.90 MHz

•    PLL frequency composite in video carrier frequency and audio carrier frequency

•    IF input/output interface for scrambling

•    Clamping and non-clamping switch , easy for Video frequency scrambler

•    Modular design provides great flexibility for video operator

•    Excellent modulation quality MER ≥ 42 dB

•    LCD display, Remote control and firmware (Radio frequency, Video/Audio medium frequency, Video frequency modulating scale, audio frequency modulating deviation, RF output level, A/V ratio, etc.)

•    Web NMS management; Updates via web

 

AM2000 PAL Modulator Solution - 19” 1RU 

RF


Frequency Range 

47 to 870MHz Any channel 

TV System 

PAL B/G or D/K 

IF Frequency 

38.9 MHz

Output Return Loss

≥15 dB (VHF) ≥12 dB (UHF)

Output Level

≥120 dBµV (typical)

4-in1 Model: ≥105 dBμV (independent output; ≥95 dBμV (combined output)

Output Level Adjustable Range 

0 dB to 16 dB (0.5 dB step)

Audio Carrier Power to Video Carrier Power Ratio 

-8 dB to -22 dB (0.5 dB step )

Total Frequency Deviation 

≤5 kHz (VHF); ≤10 kHz (UHF)

Error of Video/Audio Carrier Interval

≤±0.5 kHz

Carrier to Noise Ratio (C/N)

≥65 dB (fixed fc ± 4 MHz), ≥ 62dB (agile) 

Output Suppression 

≥60 dB

Interface

FL10

 

Video


Degree of Modulation Signal 

≥87.5 %

Flatness is Operating Band 

≤±0.75 dB

Gain of Differential Coefficient 

≤2 %

Phase of Differential Coefficient

≤2 °

K-2T Factor 

≤3 %

Delay Difference of Color or Light

≤30 ns 

Signal to Noise Ratio

≥56 Db (unweighted) ≥62 dB (weighted)

Audio


Pre-Emphasis of Audio 

50 µs

Maximum Partial Frequency of Audio 

±50 kHz

Audio Flatness

≤±0.5 dB (40 Hz to 15 kHz)

Distortion Degree of Audio 

≤1 %

Signal to Noise Ratio 

≥6 dB

Communication Interface


Interface 

RJ45

Communication Format 

RS485

Date Rate 

9600 bits/s

Miscellaneous


Dimensions 

44 mm × 482 mm × 360 mm

Power 

AC220 V ± 10 %, 50 Hz, 20 VA

 

 

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