Zhejiang, China
Business Type:
Trading Company
Number of Employees:
Year of Establishment:
Management System Certification:
ISO 9001, ISO 9000
Annual Revenue:
3.8 Million USD
OEM/ODM Service
Sample Available

DVB-S Digital Modulator, 4 Channels Input, RF Modulator manufacturer / supplier in China, offering High Quality DVB-S Digital Modulator/ RF Modulator, 40-1002MHz Micro Optical AGC Receiver, Optical Fiber Fusion Splicer and so on.

Diamond Member Since 2009
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Supplier Homepage Products Digital Headend High Quality DVB-S Digital Modulator/ RF Modulator

High Quality DVB-S Digital Modulator/ RF Modulator

Min. Order / Reference FOB Price
1 Piece US $1,100-2,500/ Piece
Port: Shanghai, China
Production Capacity: 500PCS/ Month
Payment Terms: L/C, T/T, Western Union, Paypal
Type: Encoder
Function: Signal Transmission Equipment
Certification: CE
Condition: New
Encoder Name: DVB-S Digital Modulator
Brand: Softel,OEM

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Basic Info.

Model NO.
QAM modulator
4 Asi Inputs
Qam Channel
F Type
Frequency Range
30~960 MHz
Temperature Range
Power Consumption
Transport Package
Each PCS Wth Soft, Safety Polyfoam, Then Packed I
HS Code
DVB-S digital modulator 
1.4 channels ASI input 
2.Support 5 QAM constellation 
3.Keyboard and remote control 
4.LCD display

Summary of Encoder Modulator
    SFT3340B 4 in 1 QAM is a cost effective integrated QAM modulator newly designed by SOFTEL Company. This device is integrated up to 4 channel QAM modulating carrier outputs, in which each carrier has independent signal channel encoding and direct RF output. Therefore, the device is featured with excellent RF performance index. It supports 4 channel ASI inputs (4 QAM (J.83 A/B/C), 4 DVB-S tuner input or 4 DVB-S2 tuner input). Alternatively, this device can take various RF inputs of DVB-S/DVB-C/DVB-S2 signals by installing the relevant build-in tuners. Hence, one PCS 4 in 1 QAM modulator can work as 4 standalone QAM modulators, significantly reducing the network operators' head-end cost. SFT3340B can also support local and remote control to set its working parameters.

Characteristic of QAM Modulator
1. Fully comply with DVB-C (EN300 429) and ITU-T J.83A/B/C;
2. 4 adjacent channel QAM carrier wave
3. 4 channels ASI input (4 QAM (J.83 A/B/C), 4 DVB-S tuner input or 4 DVB-S2 tuner input) and support 188/204 byte TS packet
4. DVB-S/DVB-S2/DVB-C RF input (optional)
5. Support accurate PCR adjusting
6. Support five QAM constellation(ITU-T J.83A) modes: 16/32/64/128/256 QAM,
7. Support QAM constellation(ITU-T J.83B/ITU-T J.83C) modes: 64 /256QAM
8. Symbol rate adjustment range: 5.0Mbps~9.0Mbps
9. Support PSI/SI editing function
10. RF output range: 30MHz~960MHz in 1.0 kHz step
11. RF ATT range: -16dBbm~0dBm in 0.5dB step
12. Support input de-multiplexing and PSI/SI editing
13. Support LCD display and keyboard
14. Excellent RF output performance index, MER≥40db
15. Support network management(NMS/SNMP)

 Technial Parameter of QAM Modulator
Input4 ASI inputSFT3340B-A
4 DVB-C tuner inputSFT3340B-C
4 DVB-S tuner inputSFT3340B-S
4 DVB-S2 tuner inputSFT3340B-S2
Modulation parametersQAM channel4
StandardDVB-C(EN300 429)and ITU-T J.83A/ ITU-T J.83B/ ITU-T J.83C
Symbol rate5.0~9.0Mbps, 1kbps stepping
Constellation16 / 32 / 64 / 128 / 256QAM
FECRS(204, 188)
RF OutputInterfaceF type, 75Ω impedance
Frequency range30~960 MHz, 1khz stepping
Output level-16dbm~0dbm(per QAM carrier) 0.5db stepping
MER≥ 40db
ACLR− 55 dBc
SystemSupport LCD display, keyboard operation, and NMS/SNMP operation
English and Chinese version interface conversion
Support Software Upgrading through Ethernet
Approx weight3.2Kg
Temperature range0~45ºC(Operating),-20~80ºC(Storage)
Power RequirementsAC 110V±10%, 50/60Hz
AC 220V±10%, 50/60Hz
Power consumption≈25W

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