Tuesday, 28 February 2017

How to Transmit Cable TVs by Wireless?

Article from: How to Transmit Cable TVs by Wireless?




Transmit Cable TVs by Wireless

Wireless technology is seemingly ubiquitous, but many people still use tangles of cables to connect TV sets to cable outlets. Homes that have more TVs than cable outlets or in situations where an outlet is far away from the TV, transmitting cable wirelessly can be a great solution — not to mention a terrific way to clear up all those cords. Transmitters are easy to set up and use, banishing messy wires for good.

Wireless Cable Transmission to a TV

To send cable signals to a TV, users can hook up a wireless video transmitter. Most transmitter receivers can pick up signals from 50 to 100 yards away.

Necessary Supplies

Wireless video transmitters(what is it?) have two components, a transmitter and a receiver. The transmitter hooks up to a video source such as a cable boxDVD player, or Blu-ray player, and the receiver hooks up to the TV.
There two kinds of wireless transmitters available, RCA transmitters and HDMI transmitters. RCA systems, such as the RF-Link Wireless Audio/Video System and the Terk Leapfrog Wireless Audio/Video System, connect to TVs, set top boxes, and other video sources using three-pronged RCA cables, which are compatible with most TV models. HDMI transmitters, such as the PAKITE Wireless HDMI Digital Kit, connect to other devices using HDMI cables, which can transmit HD video signals.

Setup Steps


To set up the system, plug the receiver into the RCA or HDMI port on the TV. Plug the cable box into the transmitter. If the transmitter has multiple inputs, then users can also connect other video devices, such as Blu-ray players and video streame
rs.


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Different funcktion's av sender

Article from: Different funcktion's av sender
Different series' av sender
Different categories:
Smart Wireless AV Senders support two group av input, support 38/56khz infrared remote control. more suitable used with dvd & sky box with tv.
Wireless AV Senders & IR support one group av input, support 38khz infrared remote control. more suitable used with dvd/sky box with tv.
Audio video senders support one group av input, but do not support av input. more suitable used with cctv camera with tv.
Two group av input means user can connect dvd and sky box with transmitter at the same times and switch the signal source at easy.
IR Remote control means user can switch the channels at tv end.
normally, we use tv and sky box in the same room, change channels is by control the sky box, if sky box and tv in the different room, then user need arrange a cable from sky box to tv, also can not change channels at tv end, must be sky box ends,
but if the user use our wireless av sender with ir remote control, then no need arrange cable from sky box and tv, and could switch channels at tv end.


How to make Cable to TV by Wirelessly connect

Article from: How to make Cable to TV by Wirelessly connect




300m HDMI av sender

Wireless technology seems to be the norm for most electronics, so it is reasonable to think that cable TV should be wireless as well. By switching to wireless, you can move the television to anywhere in the room or to another room altogether and not feel chained to a single cable outlet. You can send cable signals wirelessly with ease by using a wireless RF transmitter. Follow the steps to position the television, connect the transmitter and receiver, and adjust the signal to enjoy wireless cable TV in your home.

Choose Optimal TV Placement

Before connecting cable, choose a spot in the room to install the TV. Even though the cable is wireless, the television still needs power to operate, so the wall outlet should be nearby. With a wireless connection, you do not have to worry about staying close to the cable outlet. When possible, place the television at eye level. If that is not possible, angle it down to make viewing easier. Avoid placing the television on a wall opposite of a large window.

Connect the Wireless Transmitter to the Cable Box or Outlet

Locate the cable outlet in the room. Connect the wireless audio/video transmitter directly to the wall outlet using a coaxial cable. If thehome theater system uses a cable box, connect the wireless transmitter directly to the cable box. Attach the coaxial cable from the wall in the RF IN input of the cable box. Attach another coaxial cable to the RF OUT port on the cable box into the wireless transmitter. Plug the transmitter into a power outlet using the power adapter and turn it on. Adjust the antenna of the transmitter to point toward the television.

Connect the Wireless Receiver to the TV

Connect the wireless receiver to the proper port on the television. The most common way to connect the receiver is with red, yellow, and white RCA cables. Depending on the model of the receiver and the television's capabilities, you can also connect the receiver to the television using HDMI cables or coaxial cables. Plug the power adapter into a wall outlet and power the wireless receiver on. Adjust the television to the proper input when appropriate. Move the antenna to point in the direction of the wireless transmitter so it caneffectively pick up the signal.

Adjust the Signal

Devices in the home, such as microwaves, cordless telephones, and security systems, can affect the wireless cable signal. Ensure that the wireless transmitter and receiver system operates on a different frequency than other devices to get the best signal. Typically, the system operates on a frequency of 2.4 GHz or 5.8 GHz. Some systems have adjustable frequencies so that you can create the best signal possible. Power the television and cable box on. Adjust the placement of the receiver until the TV has the clearest picture.

Install an IR Extender for the Remote Control

If you place the television across the room or in a different room altogether, then using the remote control to change the channel might prove problematic. In most instances, you need to point the remote directly at the device in order for it to function. If the cable box is hidden inside a cabinet or on the opposite side of the room, the remote might not work at all. Installing an IR extender allows you to place the cable box in an inconspicuous location and still control it. Simply plug the connector into the IR port of the cable box and then mount the IR extender in a position that is more favorable. Make sure no object blocks the sensor located on the front of the receiver.

How to Avoid Distortion in A/V Transmitters

Article from: How to Avoid Distortion in A/V Transmitters




300 meter wireless HDMI TV sender

An audio / video transmitter, or AV transmitter, is a wireless device that sends audio and video signals from one device to another(details). The simplest explanation of how it works is to think of a TV signal, but on a far smaller scale. Instead of the TV station transmitting a signal to everyone who has a TV aerial, the transmitter sends a signal only to a specific receiver. Using this type of equipment allows one to send an audio/video signal from one device to another without needing to run a cable between rooms or equipment. Simply connect the transmitter to one device and the receiver to another.
As with all wireless signals, one can experience distortion or signal loss. This is aggravated by factors such as objects blocking the signal and a loss of line of sight. Loose connections, or poor signal can further complicate matters. Poor signal can be the result of issues like low quality hardware, damaged devices, or other faults. In order to minimize distortion one should shop carefully, doing adequate research through customer and expert reviews. Consumers must understand which specifications to look for in audio/video transmitters. AV transmitters are available from electronics stores or online.
Unfortunately, AV sender have not evolved to the level where they are readily compatible with HD devices. In addition, they are never completely wireless and need a main source of power to function. They have to be plugged in and switched on to work. While wireless technology is convenient and fast, coaxial cable connections give consistently better results. However, fixed cabling systems may be unsightly, more expensive, and impractical.

How Audio/Video Transmitters Work

Connecting a wireless AV sender to a TVDVD player, or other AV device turns the device into a broadcaster of video and audio signals. Connecting an AV receiver to another device within range turns that device into a receiver that is able to decode the signal sent out by the transmitter. Audio and video signals can be transmitted throughout one's home and some AV transmitters even allow one to change channels from a distance. However, one may need a remote control extender for this function. Installation is usually simple. Antennas are normally built into the sending and receiving units and all that is required is connecting the cable to the correct jack or connection. AV signals are usually transmitted via wideband FM (frequency modulation) signals that may help minimize interferencefrom other transmitters.
The best way to avoid distortion in wireless video transmitter is to choose the right sender based on specifications and reviews. Specifications include the frequency it broadcasts on, the range it covers, and the type of antenna the device has.

Broadcast Frequencies

Many AV transmitters broadcast signals in the 2.4 GHz frequency band. Unfortunately, this is also the band used by 802.11b and g Wi-Fi devices, as well as microwave ovens, cordless phones, and a number of other consumer electronics. These devices can cause interference, which leads to distortion and signal degradation. Transmitters that broadcast on a different frequency, like 5.8 GHz, are far less prone to distortion caused by interference.
Some transmitters feature adjustable frequencies (or channels) to allow users to find the best settings with the least amount of interference and distortion. The transmitter and receiver must be on the same channel for the set to work effectively. Where reception is poor or there is a large amount of interference one can adjust the channel to eliminate interference from other electrical devices. Some devices, like microwave ovens, may cause interference on all channels. If buying a transmitter that works on a higher frequency is out of the question, the simple solution to this problem is to use only one device at a time.

Broadcast Range and Signal

As with most wireless devices, AV transmitters rely on line of sight for clear, strong signals. One should always place the transmitter and receiver in open, uncluttered, unobstructed areas where the sender and receiver can "see" each other. In other words, the two devices should be in each other's line of sight. To better understand this, think of listening to the radio while driving. The moment one enters a tunnel or drives between high hills or mountains, the car's radio antenna loses line of sight with the radio station's sender and the signal cuts out or distorts.
Some transmitters are marked with the maximum range over which signals can be transmitted without obstructions between the sender and receiver. These are often somewhat optimistic, but can be used as a guideline for comparison nevertheless. Few homes are obstruction-free over the distances quoted by manufacturers, but some may wish to broadcast signals to rooms or areas outside the house. Some units are designed for outside use, with waterproof coverings and a more robust design. These transmitters boast range distances of up to 20 times that of indoor transmitters, but the range drops off significantly the moment an obstruction is encountered.

Antenna Types

The majority of transmitter types come with built-in antennas, but some transmitters feature adjustable antennas. These may need to be adjusted to find the best signal, or realigned to eliminate distortion. Where one is using more than one sender or receiver, antennas may need to adjusted every time one swaps between devices.

Using Customer and Expert Reviews to Choose an AV Transmitter

In addition to taking the factors above into consideration when choosing a sender, one should also do research by reading customer and expert product reviews. Customer reviews should, in some cases, be taken with a grain of salt as people are more inclined to post about negative experiences than they are about positive ones. However, this can be read in conjunction with expert reviews to see how devices perform in real life situations, and how the features and benefits highlighted by manufacturers compare during day-to-day use.


Compare HDMI & DisplayPort

Article from: Compare HDMI & DisplayPort



Author: pakite
Eight years ago, DisplayPort come out, someone said Displayport will replace HDMI in the future, but for now, Displayport didn't reach the their expectation, it looks like only a little chance to replace the HDMI. But it's why? Displayport has advantage for technological and better than other’s, including HDMI can not reach it’s technological.
DisplayPort technical standard:
DisplayPort
DisplayPort has developed 1.4a, and this is based on VESA Displayport at Sept 2014, the new vision 1.4a has HBR3 transmission model, 8.1Gbps transmission band, also combined VESA DSC 1.1 display compression standard, The combination of this two can allow the embedded display panel to support the highest resolution of 8K. From this technical standard we can analyze a keyword "bandwidth". the transmission of high bandwidth content is advantage of the DisplayPort interface, DisplayPort interface is based on the fundamental.
Technical standard of HDMI interface:
HDMI interface
HDMI Jack has developed 2.0 Vision, but the new jack still not commonly used. Now the popular HDMI 1.4 standard support 4K resolution output but only for 24fps and 30fps frame rate, HDMI 2.0 could capable of handling 18000 trillion bits / sec data, enough to make 12 color screen display with high frame rate 60fps per second .
Compare HDMI and DisplayPort:
From the development, we can found the DisplayPort interface is superior to the development of HDMI interface in technically area.  after all, DisplayPort interface can transmit 8K resolution content. While the HDMI 2.0 version only support 4K 60-frame content. There is no big difference in other technical between of them, both of of then can transmit audio and video at the same times, and there is no difference in the physical interface, The most important difference is still bandwidth.
But we know the current ultra-high resolution equipment is not commonly used, only a few of 4K resolution products in the market, as the display industry's top configuration, 8K content will began at 2018, besides,only a little of 4K resolution resolution for now. So the bandwidthadvantage of DisplayPort has not displayin currently. Moreover, after 2018, both have to be upgraded, the capacity of HDMI  should be improved to meet the needs of user.


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Technology of PAT-580 HDMI Transmitter Receiver | PAKITE

Article from: Technology of PAT-580 HDMI Transmitter Receiver




HDMI Extender Transmitter and ReceiverPAKITE brand HDMI av sender model PAT-580 is such a wireless device for transmit audio video from HD Signal source to TV or viewing device in another room, it’s transmit 720*576P resolution video without latency, full hard ware and support plug and play.

Transmission HD video by wirelessly, wireless transmission make the big problems---fix up cables. Transmit the signal source from Blue-ray device,Set-top box, DVD to HD TV.

PAT-580 Wireless AV Transmitter transmit video and audio without prejudice and compression though 5.8ghz frequency technique, 8 channels for avoid interference, support 720*576P resolution real time transmission.

1. The newest HDMI wireless transmission technology, based on 5.8ghz frequency, bandwidth 16.5MHz, FM/PLL demodulation, without latency and  compression
2. Support original video resolution 1080P real time transmission, output resolution up to 576P, latency less than 0.01second.
3. Adopt 270°rotation antenna for get stable signal.
4. Unique 8 channels for avoid RF telecommunications interference
5. Plug and Play, no need to install any software, support Set-top box, HD DVD Player or other signal source.
6. Support audio 1.0Vp-p, video 1.0Vp-p, makes you enjoy a nice video and real audio.
7. Support 433MHz Superheterodyne IR Remote control, you can change channels at receiver end.
8. Elegant design with high light black.
9. Adopt low consumption and low noise.

Multi-room project for family:
Most of family has TV in living room and bedroom, at least two sets. Two sets TV could get signal form one set Set-top box at the same times, both TV could get the HD video signal. This HDMI product is compatible with 43 "TV. 


How to Connect a PC to a TV by Wireless ?



Do you want to watch movies and videos on “big screen”? for family game night or music and social-media sharing with friends at parties. Or you might just want a bigger screen as you study or conduct research. Whatever your lifestyle or needs, it’s easier than ever to connect your PC to the TV, so here are a few ideas for making that a smooth process.

Basics
First, both your PC device and TV need to be on the same wireless network. That’s a priority common to both initial setup and any later troubleshooting. Confirming your equipment compatibility and correct routing also are keys to success, and that’s true regardless of which connection method you’re using. These methods may include Intel WiDi, HD wireless adapters, or simply direct connect with the increasingly common and hassle-free feature of built-in WiFi in your devices.

Intel WiDi
With Intel WiDi, you can stream directly from PC to HDTV, provided you have a certified WiDi receiver device. Intel Wireless Display features high-quality content delivery, with the ability to split screens and multitask. Tutorial videos are straightforward and offersimple walk-through menu pathways to add the device and activate projection. New, low-cost adapter options and Intel WiDi apps also make it possible to make the most of the wireless Intel WiDi connection.

Wireless HDMI Connection
Many laptops are HUMI-ready, and the port designated for HDMI cable use is available for wireless use, too. A number of kits on the market make it easy to connect without a cable by using a small, plug-in transmitter with a matching receiver. Other connection options between your TV screen and your PC -- or your handhelds, too -- include apps that are especially helpful for displaying and sharing content in the business networking or conference setting.

The Future of Wireless
At home, the TV is still the top screen choice for entertainment -- but more consumers are using it together with PCs and other devices, especially competing tablets and mobile handhelds common to “second screen” experiences. Experts expect more than 50 billion Internet-connected devices by 2020, twice the volume now, including refrigerators and appliances as well as TVs! So keep an eye on the Internet of Things future when considering your tech investments and capabilities today.


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Question for 300m HDMI av sender

Article from: Question for av sender


  1. Is there some way to avoid the noise while using the HDMI av sender?

      In order to avoid noise, pls try to set up the signal device audio become louder and reduce the monitor audio.

300m Wireless HDMI Video Transmitter and Receiver
 2. My HDMI av sender's IR Remote control seems doesn't work? What happened?
      One set HDMI wireless av sender contains a transmitter and a receiver, and transmitter in the wrong position will cause ir remote control become insensitive or not work. Solution method: If you don’t wanna use IR Cable, pls place the transmitter above at the signal source and keep the indicator light of transmitter and the infrared light of signal source in a line, but the transmitter bulge 2 cm.


 3. I brought two set HDMI wireless video transmitter for my parents, but I'm not so clear how to set the transmitter and receiver channels.
      Please make sure Transmitter and Receiver was set in the same channel.( Channel switch "1234" in the pan in the back of the device) Note: If Transmitter and Receiver channels in the different group, that will cause no signal. pls try to switch the channels in the same channel, example: 1234 all up; 134 up and 2 down.....Each group is suitable for different environments, pls try to find ot which channel is the best for your using environment.



Redefine HDMI TV Sender | PAKITE

Article from: Redefine HDMI TV Sender


HDMI wireless video transmitterEvery clients wanna get one set full HD resolution tv sender, but 98% of then stop since the high cost. And it's transmission range is very short. Now, PAKITE PAT-580 redefine 300 meter HDMI wireless tv sender, with a new design of blue light and long distance transmission range.

It’s a type of wireless tv sender with HDMI jack. It’s 5.8ghz frequency band, 5.8g has 8 channels for avoid interference, example 5645/ 5905/ 5925/ 5945/ 5725/ 5745/ 5765/ 5805. 300 meters transmission range at line of sight, that’s keep the universal SD av sender transmission distance, as for Full HD 1080P HDMI tv sender is hard to make it come true. Besides, it support one transmitter and many receivers, ( For example, three televisions sharing one cable box wirelessly just need one transmitter and two receivers; Transmitter connect cable box by HDMI cable, one television connect cable box, the other two receivers connect another two televisions separately ), it’s real time transmission, no need to connect with wifi and upload the video.


PAT-580 HDMI av sender is the best solution to deal with wirelessly transmission the HDMI TV Box signal to TV . Favorable price and lone distance transmission is clients needed.


Compare Wireless TV Sender Model PAT-220 and PAT-330 | PAKITE

PAKITE brand RCA/AV and HDMI jack Wireless AV Sender has become more and more popular, but since the character of wireless product is very special, so many clients may misunderstanding.

PAT-220 wireless tv audio/video sender transmitter and receiver

Model PAT-220 is Wireless TV Transmitter and Receiver for transmit both digital and analog signal by 433.92MHz wirelessly transmission; 2.4GHz ISM frequency band; support 150 meter transmission range at line of sight; and it support 38KHz infrared remote control, which means you can remote control the channels at receiver/television end.

But PAT-330 is 2.4GHz ISM frequency band; support 150 meter transmission range at line of sight; transmit both digital and analog signal by 433.92MHz wirelessly, but this model do not support ir remote control, so you can not change channels at receiver end if receiver and transmitter were placed at different rooms.

The reason why we suggest user choose PAT-220 for television is because the ir remote control function. Most of clients choose our Wireless TV Sender is for plan to place transmitter and receiver at difference rooms, so PAT-220 is better for television user. If user's signal source device and viewing device has HDMI interface, the PAKITE newest HDMI AV Sender may be fitable for HDMI user. And it requires signal source is 1080p full hd.

PAT-330 is more suitable for cctv camera transmit video from cctv camera to monitor, since cctv camera is no need to change channels or add/reduce the volume, so PAT-330 is much favorable for cctv camera user.

Dear clients, please confirm the using environments with our sales before make order, we would not like to see you make wrong order lead your Wireless TV to TV Sender can not work.