Tags: WOC system TV splitter
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Smartphones, iPads, which mobile terminals do not need to go online, go home and lie in bed, want to play, the landlord finds that the wireless signal is not good, frequently dropped. The steel structure on the wall is too good. The wireless router has no signal in the living room bedroom. Is it necessary to open the bedroom door at night?
Put the wireless route in the bedroom and worry about radiation. In a duplex or villa building, the network signal of a single wireless router often covers less than all places, leaving many signal dead ends, which is a headache for many users.
A wireless router can't solve the signal coverage of all rooms in the home.
Is it necessary to use multiple wireless APs to bridge to make extended signals? Wireless relays are to reduce bandwidth and increase network delay. This has a great impact on many network battle games that are sensitive to latency.
For example, when playing World of Warcraft and mutual PK... Let's take a look, whether it is a hotel or an apartment, CATV cable coaxial cable is a must, but the cable currently used by CATV is SY(W)V-75. -5 coaxial cable, SY (W) V-75-5 is specially produced for cable TV signals.
Replace the cable TV splitter in your home with the WOC system combiner
The traditional view is that the frequency band transmitting 2.4g is greatly attenuated. However, according to the actual measurement, the coaxial cable rate is generally about 50db/100 meters. Microwave link loss calculation formula: Loss (in dB) = 32.5 + 20log (frequency, GHz) + 20log (distance, meter) + transmission cable loss.
Assume that the transmission to 50 meters, through calculation, the transmission loss of the CATV cable is about 9db less than the air transmission, if you consider the wall to 15 to 25dB loss of wireless transmission, CATV cable transmission is at least more than the traditional coverage The loss of 25db is reduced, and the WOC passive antenna extension system is based on this point.
In the figure: The blue curve is the attenuation of linear transmission in air under ideal conditions of wireless network signals. The effects of obstacles and Fresnel Zone were not considered in the calculation. The green curve is the attenuation of the wireless signal transmitted in the cable TV cable. It can be seen from the figure that even under the optimal conditions of the wireless network (accessible, no interference), when the transmission distance is less than 60 meters, the transmission performance of the ordinary quality cable to the wireless signal is better than the transmission of more than 30 dB in the air.
If you consider the impact of obstacles such as walls and ceilings on wireless transmission loss (the attenuation of 2.4GHz signal on each layer of 30cm thick wall/ceiling increases by 20-25dB), when the transmission distance is less than 60m, it is transmitted by cable TV signal line. 2.4GHz wireless signal, the advantage can reach more than 50dB.
WOC combiner
WOC is a passive 802.11b/g wireless network antenna extension system, which is a multi-antenna, small-signal wireless coverage mode. The wireless access point AP of the WLAN is installed in the information number, and the WLAN and CATV cable signals are mixed by the combiner and input into the existing CATV cable TV line in the room, and the CATV line coaxial cable is fully shielded and Directly transmitted to each room under interference, and finally separated by a WOC panel (separator) to achieve high-quality interference-free wireless network coverage and TV signal transmission in the room. Due to different working frequency bands, WLAN and TV signals do not interfere with each other. The process is:
How does the WOC MS04 four-way combiner work?
Cable TV signal/wireless signal separator installed on the wall of the room
Before entering each room, the 2.4 GHz signal of the wireless router and the cable TV signal are input into a dedicated combiner at home to generate a mixed WLAN/CATV signal. The WLAN/CATV mixed signal is transmitted over the existing cable TV cable to the cable TV outlet panel in each room.
WOC cable TV line, wireless RF line collinear system. Is to use the home or hotel ready-made cable TV line to transmit WIFI wireless signals, load the WIFI wireless signal into the CCAV cable in the cable distribution box, and then put the signal in the cable TV wall junction box of each room. Separated, this can get rid of the attenuation of the wireless signal in the wall of the room, and send the WIFI signal to each room. Let each room signal be full.
Change the cable TV panel in the room
Features of WOC: Under normal circumstances, a WOC home system can serve 4 to 8 rooms. Considering the attenuation of CATV cables, the CATV cable from the wireless router to the room should not exceed 50 meters. This distance also corresponds to the length of the cable buried in most home walls.
The WOC passive antenna extension system is fully shielded and transmitted through the CATV line, and the WIFI wireless and 3G signals are distributed to several adjacent rooms for sharing. In addition to the natural loss of the CATV cable, the wireless signal extending into the guest room is not excessively strong. So don't worry about radiation. Moreover, the signal is indoors, which also isolates the annoyance of using ordinary APs to be often interfered or attacked by people.
The WOC system only needs to change the cable TV brancher in the home.
The WOC passive antenna extension system allows the wireless signal to go straight to the room without going through the wall, so the wireless signal in the room is strong, the coverage is even, and there is no dead angle. If it is not connected to the wireless bridge, there will be no phenomenon that the traditional coverage mode is “intermittent and intermittent, and the wireless network jumps and jumpsâ€.
Schematic diagram of WOC system operation
Since it is only a replacement of the panel and connector of the original cable TV in the home, the construction is relatively simple, and a screwdriver can be completed with a vise.
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