RF & Optical Product
SPEC offers a wide variety of RF & Optical products include Amplifier, Node, Transmitter, Modulator, EDFA ans Trans-receiver etc.
Transmitter is an electronic device which transmits optical signal of desired magnitude. Transmitter takes RF as input and converts it into optical signal of desired magnitude and wavelength. Magnitude and wavelength is depends on type of laser we use...
Trans-receiver is simply a combination of both optical transmitter and optical receiver. It can achieve RF output of desired level of optical signal(+2 ~ -8dBm). Same time we can get optical power of desired level(9 dBm or 10 dBm). It uses two adaptors, one as a optical...
Optical Receiver (Node)
The type of transmitter can used for retransmit of optical signal. It can also be used as a same 1310 RF optical transmitter. In this type of transmitter low power Optical Signal is used to convert into its equivalent RF...
The age of high-speed data communications and multimedia application have dawned on cable television. It has brought with it a myriad of services such as high-speed data, video on demand, IP telephony, status monitoring, impulse pay-per-view and internet access to name a few. A cable plant must be two-way ready to carry this high-speed data traffic from a variety of sources.
Cable TV system is directly link with public. It is necessary to reach the RF signal 24 hours consumer end. Therefore , it is necessary to keep our whole system (control-room, amplifiers, node etc.) to provide initial power supply every time through same co-axial cable wire to operate active power devices is called Power Pass System.
Saw Filter Modulator
Advanced phase locked loop oscillating technology and surface acoustic intermediate frequency modulation technology are used in our professional series modulator. Automatic control systems are used to monitor working status. Working status will displayed on LCD of front panels.
High pass Low pass Filter
Low pass filter suppression of high frequency is -50db.
High pass filter suppression of low frequency is -50db.
Over loss is 2db
Based on SMD Technology.
Available in steel alloy body and metal body.
RF and optical Accessories
It is just use a double IC double output optical receiver. Only difference is thst it operates on DC power supply instead of AC. It reduce complication of power pass system. It is very easy to maintain the co-axial cable line. It uses DC power in cable wire, having no frequency hence very less chance to produce heat inside cable wire....