QAM Modulator

Payment

T/T
MOQ

Negotiable
Country of sale

World Wide
PRICE
- FOB
  
  Depend on quantity

Description
Shipping&Payments
Company Introduction
POC SUGGESTIONS
(PROOF OF CONCEPT)
Product Reviews

ITEM SPECIFICS

Brand

Unbranded

Model DQM-1903ML
origin

Republic of Korea
Size(Capacity)

PRODUCT DESCRIPTION

Introduction

AS a QAM modulator, it shows professional performance for received transport stream signal to output as frequency band for suitable CATV band transmission. It is also easy to select frequency band via front control panel.

Feature

• ASI input transport stream

• Excellent RF output

• Supports QAM modulation

• Supports PCR re-stamping function

• User adjustable output level and frequency

• Front panel control

• QAM Modulation setting (64, 256QAM)

• PCR Jitter: ≤ ± 200 ns

• Group Delay as ± 20 ns

• MER After Equalizer: 42dB

• Phase Noise: VHF -105 dB@20KHz, UHF -103 dB@20KHz

• Frequency: 54 ~ 870MHz

• Output Level: 55±5 dBmV

• Spurious: ≤ -63dB

Competitiveness

• Hi-dense modulating for QAM(Annex A, B and C)

• Advanced coding as ITU-T(J.83) Annex A, B and C

• Cost effective with simple set-up and operation

• Hybrid AMP integrated

• Space efficient

Specification

Digital Input

Transport Stream	ASI
Connector	BNC (75Ω)
Coding	ITU-T (J.83) Annex A, B and C
Bit Rate	1~52 Mbps
Packet Format	188 Byte
Symbol Rate	1~7Mbps
Modulation	64,256 QAM

RF Output

Frequency Range	54~870MHz
Impedance	75Ω
Output Level	50 ± 5 dBmV
Level Control Range	0~-15dB
Bandwidth	6MHz : Annex B and C
	8MHz : Annex A
MER After Equalizer	42 dB
MER Before Equalizer	37 dB
Phase Noise	VHF -105 dB@20KHz
	VHF -103 dB@20KHz
Adjacent Channel Carrier Attenuation Characteristic	≥ 45 dB (Out-of-band)
Spurious	≤-63 dB
Return Loss	≥15 dB
Group Delay	±2 0ns
Frequency Response	± 0.5dB
Frequency Tolerance	±2ppm
PCR Jitter	≤ ± 200 ns

General

Power Requirements	AC 90~230V, 50/60Hz
Power Consumption	13W
Weight	3Kg
Dimensions	482 x 44 x 383 mm