QAM-to-QAM Regenerative Repeater DTV Modulator For Reginal Edge Headend System
Brand Name:GOSPELL
Certification:ISO9001,FCC,CE
Model Number:GQ-3640
Minimum Order Quantity:1
Delivery Time:Within 7 days
Payment Terms:TT/LC
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Location:
Shenzhen Guangdong China
Address:
Block F10-F13, F518 Idea Land, Baoyuan road, Bao'an Central District, Shenzhen City 518102, Guangdong Province, China
Supplier`s last login times:
within 48 hours
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Product Details
GQ-3640
QAM-to-QAM Regenerative Repeater
GQ-3640 is a QAM-to-QAM regenerative repeater with frequency
shifting option. It can receive 2 DVB-C signal from its RF inputs,
for demodulating, TS passing through, channel coding and finally
output 1[1] QAM signals at adjacent channels. GQ-3640 can be used in the
reginal edge headend systems, to improve RF signal quality from the
succeeding system and perform QAM frequency shifting according to
regioanl network needs, for ensuring signal quality and stability
in long distance transmission.
Main Features:
- Support ITU-T J.83 Annex A QAM modulation with output frequency range of 30MHz~860MHz
- Equipped with 2 RF inputs and 2 loop-out ports
- 1 QAM output with signal coming from either RF input
- Output level: 98dBuV~118dBuV (single channels, step size = 0.25dB)
- Support gain fine-tuning for in band level balancing, adjustable range: -2.5~10.5dB
- Provide - 20dB RF test output
- Filter circuit tracking design to ensure excellent out-of-band rejection
- LCD front panel for status checking and device configuration
- Equipped with serial port for working status monitoring and software upgrading
Technical Specification:
| Input | |
| Port Type | F-type |
| Number of Ports | 2*IN,2*LOOP OUT |
| Input Inpedance | 75Ω |
| Chanel Mode | ITU-T J.83 Annex A/B |
| Frequency | 50~860MHz |
| Symbol Rate | 4.2～7Mbaud/s |
| Constellation | 16/32/64/128/256 QAM |
| Input EPL | -65dBm ~ -25dBm |
| Output | |
| Port Type | F- type |
| Output Impedance | 75Ω |
| Number of Ports | 2 |
| Symbol Rate | 4.2～7Mbaud/s |
| Physical Bandwidth | 4.83～8.05MHz |
| Frequency | 30~860MHz |
| Constellation | 16/32/64/128/256 QAM |
| Output Level | 98dBuV～118dBμV |
| Gain Fine-tune | -2.5～10.5dB,Step size 0.25dB |
| Chanel Mode | ITU-T J.83 Annex A |
| MER | ≥ 45dB (equilibrium on) |
| Isolation | ≥ 75dB |
| Reflection Loss | ≥ 14dB |
| Management | |
| Port Type | RJ-45 |
| Power and Consumption | |
| Input Voltage | 100～240V AC |
| Input Frequency | 50/60Hz |
| Consumption | <15W |
| DC Output | 2A/12V |
| Environmental | |
| Operating Temperature | 5℃～45℃ |
| Storage Temperature | -25～85℃ |
| Humidity | 10%～90% |
| Physical | |
| Size (W x H x D) | 260mm x 44mm x 160mm |
| Weight | <2Kg |
For More Information
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representative:
GOSPELL Shenzhen, China | GOSPELL Chengdu, China | GOSPELL Chenzhou, China |
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QAM-to-QAM Regenerative Repeater DTV Modulator For Reginal Edge Headend System
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