GFM860 Fixed Channel TV Modulator
GFM860 is a cost effective 19” 1U Rack Mount fixed channel TV modulator designed for CATV Head-end. GFM860 provides audio and video modulated RF carrier on any fixed channel between 45MHz and 860MHz. Many standard audio/video sources can be used, such as satellite receivers and video tape recorders. The modulator has a wide range of standard and optional features that are very suitable for advanced MATV, SMATV or CATV systems.
FEATURES
19”1U Rack with internal power supply
Front Panel Control and Easy to Operate
IF Processing with High Quality SAW Filter
Adjacent Channel Capability
High Precision PLL Technology
Built-in High Anti-Hum Clamp Circuit
Video Modulation Depth and Audio Frequency Deviation in Front Panel
SPECIFICATIONS
Video |
| |
Items | Unit | Specifications |
Video Input Level | 0.6-1.5 Vp-p | |
Video Input Impedance | W | 75 |
Video Modulation Depth | 87.5% | |
Video Flatness | ≤±1.0dB (5MHz) | |
K coefficient | 4%(2T pulse) | |
Differential Gain | ±4%(87.5% Modulation) | |
Differential Phase | ± 4°(87.5% Modulation) | |
C/L Time Delay | ≤40nS | |
Video SNR | 50dB(Unweighted) | |
Audio |
| |
Items | Unit | Specifications |
Audio Input Level | -10 ~ +10dBm | |
Audio Input Impedance | 10KW(Unbalanced) | |
Pre-emphasis | ±50us | |
Audio Frequency Flatness | ±1.0dB (40Hz~15KHz) | |
Audio Nonlinear Distortion | 0.5% | |
Audio SNR | 60dB | |
Difference of Video /Audio | 6.5MHz±2KHz | |
RF |
| |
Items | Unit | Specifications |
Output Frequency | MHz | Any Fixed Channel (45-860MHz) |
Frequency accuracy | ±5KHz | |
Output Level | dBmV | 50dBmV |
Output Impedance | 75W | |
Output reflection | 12dB min, any channel | |
Audio to Video Carrier Ratio | dB | -10 ~-20 |
Spurious Output Suppression | dB | 60dB |
Side Band Suppression | 60dB | |
Circumstance |
| |
Power Supply | 110-250Vac, 50Hz, <10W | |
Operation Temp. & Humidity | -5C ~45C 5%~75% | |
Storage Temperature & Humidity | -20C ~70C ≤80% | |
Mechanical Dimensions | mm | 440×160×44 |
Ordering Information:
GFM860-Sys-CH Fixed Channel TV Modulator
Sys: B_PAL B/G; D_PAL D/K; I_PAL I; N_NTSC
CH: Channel Number
According to client's order quantity Our service:
1.Good Reply :Your inquiry related to our products or price will be replied within 24 hours.
2.OEM & ODM:Your any idea on telecom we can help you to design and put it into products.
3.Warranty: 1-years warranty
4.Transportation : FedEx, UPS, DHL, TNT etc
What is Greatway?
Greatway Technologies Co., Ltd. is a leading HD Video, High Speed Internet and Broadband RF over fiber products provider in China.
We are engaged in TV, Ethernet and VoIP triple-play products based on CATV and GEPON network.
What does Greatway offer?
We offer the whole range of cost-effective CATV, Ethernet over fiber products with excellent quality.
You can find them just clicking the http://www.greatwaytech.com or http://greatwaytech.en.china.cn
What are your working hours?
Monday-Friday, 8:30-17:45 (Beijing time, GMT+08:00).
How do I send an inquiry?
The most efficient way is to forward your inquiry to our e-mail address in "contact us" page, or contact us on TradeManager,Skype
Please, input your name, country, e-mail, phone, product specifications and desired quantity. A designated manager will get back to you within 24 hours.
Can I get a lower price?
OK, that's no porblem. I know the price is the most important part to the customer.
We could discuss it based on the order quantity. As the manufacturer, we also have the absolute confidence to offer the best price to you.
What's your company advantage?
We have our own R&D, production, sell and the rich experience technical support center.
We specialize in offering the whole CATV FTTH network solution and all equipments needed in this solution.
Could you give us help on the EOC/CATV solution?
OK, it is our pleasure to help you. We not only provide equipments needed in CATV FTTH solution,
But also offer the technical support about it if the customer need it. And you only need tell us the details of your network application.
For Trade Terms,such as payment and leadtime.
Payment Terms:T/T 100% in advance,Paypal and Western Union for the sample order
Price Terms:EXW Shenzhen
Internal Express: EMS,DHL,Fedex,TNT,UPS,by sea or your own shipping agent
Leadtime: Sample order,3-5work days; Bulk order 15-20work days(after your payment )
What is your product warranty policy?
All Greatway products carry a 12-month warranty.
What shall I do if I encounter a problem with products bought from you?
Please, don’t open or try to fix the problem yourself.
Contact Greatway immediately and submit inspection report or problem description. We will do our best to help you solve the problem.
Can I become an exclusive distributor of Greatway products in my area?
Yes, it is possible if we don’t already have a representative in your country (region).
The best start is to prove your good intentions with several regular orders over a period of time.
The beneficiary will always be “Greatway Technology Co., Ltd.”.