How to Convert Cable TV to Wireless

How to Convert Cable TV to Wireless

 

Hardwiring a television to a cable outlet seems antiquated when more and more electronics are moving toward wireless technology. Convert your cable TV to wireless by using a wireless RF transmitter and receiver ( wireless av transmitter and receiver fit for RCA port device, and HDMI av sender fit for HDMI port device ) to transmit signals from the cable box to the TV. This gives you the freedom to move a television to the other side of the room or house without having to move the outlet as well. By choosing the right equipment, connecting the wireless transmitter and receiver, and configuring the wireless signal, you can enjoy cable television free from wires.

1 - Choose Wireless Transmitter-Receiver Equipment
Several brands and models of wireless transmitters and receivers that deliver RF signals are available, and each model offers different features and capabilities. These systems work on frequencies that do not interfere with other devices in the home, such as microwaves and cordless telephones. They typically operate at frequencies of 2.4 GHz and 5.8 GHz. Choose one that operates at a frequency different than the frequency of other devices in your home to achieve a good signal and a clear picture.

While many wireless transmitters and receivers work for a single television, there are a handful that offer expandability options. To connect several televisions to a single cable outlet wirelessly, choose a system that has multiple receivers and a transmitter that can accommodate them.

2 - Connect the Wireless Transmitter to the Cable Box
The wireless transmitter connects directly to the wall outlet or the cable box. Connect the coaxial cable from the wall to the "RF IN" port on the transmitter. If you are connecting it to a cable box, connect a line from the "RF OUT" connector on the cable box to the "RF IN" port on the transmitter. Connect the AC adapter to the transmitter and plug it into a standard outlet. Power the device on and select the channel output.

3 - Connect the Wireless Receiver to the TV
The wireless receiver connects directly to the television using either an HDMI cable or a coaxial cable. Choose a short cable so that it is easy to conceal the receiver behind the television. Choose a longer cable to conceal the receiver inside an entertainment system.

Connect one end of the cable to the receiver and the other end to the appropriate HDMI or coaxial port on the television. Connect the AC adapter to the receiver and plug it into an outlet. Power the device on and select the channel output that matches the channel you selected on the transmitter. Repeat this process for all receivers.

4 - Set Up Your Television
When connecting an external device to a television, like a DVD player, VCR, or cable box, always plug them into the proper inputs. From the input menu on the screen, select the one that you connected the receiver to. If you use a coaxial connection, tune the television to the channel selected on the devices. For many televisions, this is channel 3. If you connect the receiver using an HDMI cable, tune the television to the appropriate HDMI input.

5 - Configure Your Wireless Signal
The transmitter and receiver each have a paddle or antenna that allows the two devices to communicate with each other. You may need to adjust the paddles on occasion to get a clearer signal. When first installing the system, point the paddles toward one another. After initial installation and turning on the television, make minor adjustments to the receiver until you obtain the clearest picture.

6 - Install the IR Remote Extender
If the television is in a different room and the cable outlet or box in another, install an IR remote extender so that you can use the standard remote. This boosts the IR sensitivity so that you do not have to worry about furniture or walls blocking the signal. Install the IR extender to the wireless transmitter and then place the receiver in an open area. Typical placement is near the IR receiver of the cable box. You can use the remote as normal to control the television.




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The difference between 480P 720P 1080P

Sources: The difference between 480P 720P 1080P

SD(Standard Definition)

Standard Definition: physical resolution of 720p video format. 720p refers to the video vertical resolution of 720 lines progressive scan. Specifically, SD means the resolution about 400 lines of VCD, DVD, TV programs and other "standard definition" video format, the standard definition. While the physical resolution up to 720p or more is known as HD ( High Definition) .On the high-definition standards, internationally recognized there are two standard: video vertical resolution of more than 720p or 1080i; video aspect ratio of 16: 9.

HD(High Definition)

Digital TV (HDTV) 720p, 1080i, and 1080p are high-definition standard formats defined by the Society of Motion Picture and Television Engineers, 1080p called the current top-of-the-line display format for digital televisions in progressive-scan 1920 × 1080 resolution. At present, only the  screen size over 60-inch can display the signal 1920 × 1080 resolution. Where I means  interlaced scanning, P means progressive scanning.  Simply , to show the effect, 1080p> 720p> 1080i. Of course, in 20-inch computer LCD screen, there is no difference.

FHD(Full HD)

Full HD:  the physical resolution up to 1920 × 1080 display (including 1080i and 1080P), where i (interlace) refers to interlaced; P (Progressive) represents progressive scan, the Fine degree in those two picture has a big difference, 1080P picture quality is better than 1080i. then 720 is called standard HD. Obviously,  the 1080 resolution is more advantages in large-screen TV, 1080 to ensure a clearer picture quality, but for small screen size tv, there is no big difference.


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Can I use two sets wireless tv sender in my home?

Wireless TV Sender(also known as wireless av sender, Digisender, wireless video sender) is a device that will let you remotely have TV in your bedroom without running a cable, and it's very easy to use and install, but the shortcoming is can not support watch difference channels.

At that time, user come out a solution: I can use two satellite receiver for two sets television, so does the wireless tv sender can support like that? The answer is “ definitely yes.” If any one can do like that, one house need two sets wireless tv sender, I will suggest you use two difference series wireless tv sender.

If such circumstances:

First, as you know, wireless device is easy to get interference from other wireless device, the same theory with wireless tv sender, so we would suggest you place the two set wireless tv sender as far as possible, like one unit place at first floor and second sets place at second floor.

Second, the first av sender at the first floor ... 

More>>Can I use two sets av sender in my home?

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How to use PAKITE PAT-433 Wireless IR Extender?

How to use PAKITE PAT-433 Wireless IR Extender?

First, PAT-433 is a type of wireless IR Extender, it’s used for extension the infrared remote control distance.

PAKITE PAT-433 tv ir sender is 433.92MHz ISM frequency band,support 38KHz IR Remote control, support 200 meter remote control distance at line of sight.

PAKITE PAT-433 including one pcs transmitter and one pcs receiver, as the following picture:

Transmitter

Receiver

Two circumstances:

First: for control tv at from another place.

If you would use PAT-433 ir repeater to control ( increase or reduce) the Volume of tv, then you need put the receiver at tv end, as the following picture 1, and remote control at transmitter end as the picture 2.

picture 1

picture 2

Second: for control Set Top Box/DVD at TV end.

If set top box and TV were placed at different rooms, you would use PAT-433 to control set top box to change program at tv end ...

More>>How to use PAT-433 Wireless IR Extender?



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Wireless TV Sender Receiver Choosing Guide Review

Wireless TV sender ( also called wireless av sender ) is an affordable and no-fuss solution to the problem of connecting all the TVs in a home to the household's primary set-top box or DVD player. With a AV sender, there is no need to run cables from room to room. The buyer can now watch clear audio and video reception on any television in the house from the comfort of any room. You should keep in mind that 5.8 GHz AV senders provide less signal interference and better picture quality than 2.4 GHz AV senders.

 

• Read also,  How to select a worthy TV to TV Sender
  

I bought this wireless tv sender because I couldn't see renting another cable box for my home office. I've ended up using it around the house as well. I hooked it to my DVR and now can watch recorded shows anywhere in the house. I wish I could just buy additional receivers and I would set it up permanently, but the hook up is still extremely easy and the boxes are very light and small. You do have to use the remote that runs whatever its hooked too, so periodically I forget where I've left the remote to the DVR .But it also limited by channel selection when using TV senders. Only one television channel can be viewed and transmitted at a time. Currently, there are no solutions available for this limitation. However, one should consider this to be only a minor limitation that does not detract from the convenience of being able to watch the same TV program on two different TV screens in two different locations in the home.

 

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• The difference between 480P 720P 1080P.
• Why my av transmitter receiver can not work well?

The picture and sound is surprising good. A small TV is perfect, for my 36 inch TV if you get close you can see the difference, but step a few feet back and it looks just fine. It doesn't like the microwave, lots of popping and crackling. Sometimes it crackles when someone walks directly in front of the receiver. A couple times I've had more troublesome interference, but was corrected by changing to another channel on the transmitter and receiver. (it has 4).

You can find a wide selection of wireless av transmitter and receiver on Pakite,  including 2.4GHz and 5.8GHz frequency band, transmission range from 150m to 700m.There is always one is suitable for you!

Good news: PAKITE hdmi wireless transmitter with hdmi jack is coming soon, and the wireless tv transmitter hdmi is used for the TV device with hdmi port. Waiting for your inquiry about the hdmi wireless transmitter.


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Types of AV Senders Wireless

Types of Wireless AV Senders

There are two basic types of AV senders, each transmits in a specific frequency range: 2.4 GHz or 5.8 GHz. The different frequencies are transmitted by radio waves through the use of an antenna attached to the transmitter and receiver. The frequency range determines the overall quality of the transmission signal of the transmitter to the receiver.

2.4GHz Wireless AV Sender:

2.4 GHz AV sender is more popular than 5.8 GHz AV sender. 2.4GHz frequency band has strong penetrate ability and suitable for the environment existing wall, especially for used at different floors. 2.4 GHz AV sender’s television picture may be fuzzy or difficult to view due to frequency interference caused by other devices in the home. Such sources could include baby monitors, WiFi, and anything that operates with a 2.4 GHz frequency.

5.8 GHz Wireless AV Sender:

5.8 GHz AV sender employs a relatively new form of technology that is still evolving. It is more expensive because the signal output and picture are clearer. 5.8GHz frequency band has strong anti-interference ability and suitable for open space. With this setup, there is little interference from other radio frequencies as is the case with the 2.4 GHz AV sender. When there is interference such as with 5.8 GHz cordless telephones, the user can change the specific channel within the frequency band to a channel other than the one used by the cordless telephones. Both the transmitter and receiver broadcast frequency channels should be the same. 5.8GHz frequency band suitable for the using environment existing many other wireless device.

  In a word, the wireless av sender were divide into two series, 2.4GHz has strong penetration ability, 5.8GHz has strong anti-interference. Choose a suitable av sender to enjoy freely wireless HD AV sharing data and Hi-Fi audio and video effect.

Artical from: Types of AV Senders Wireless

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Wireless TV to TV Sender Buying Guides

Wireless TV to TV Transmitter Buying Guides

In an age of convenience and high-tech home entertainment, many homes now come with more than one television. Today, one finds televisions in kitchens, home offices, bedrooms, and even bathrooms. The main television, usually located in the living room, is where the satellite or cable television box is located. In the past, in order to receive cable or satellite television in more than one room, there needed to be a set-top box in each room. This extra installation required cables and wires, and of course the set-top box itself. Having a TV in every room proved to be expensive. Now, with the advent of the TV to TV sender, a television signal can be transmitted from the main television to the other televisions. The Wireless TV sender allows each television to receive the same television transmission wirelessly without all the additional expense involved in buying and installing set-top boxes in every room.

This convenience has made the TV to TV sender very popular. In order to make an informed decision when selecting a TV to TV sender, the buyer should know the differences between 2.4GHz and 5.8GHz TV to TV senders. It is also important that the the buyer is mindful of some of the TV to TV sender’s limitations. Buyers can find TV to TV senders at local electronics shops, electronics departments in department stores, and online.

How a Wireless TV Sender Works

To make an informed decision when it comes to buying a wireless TV sender, the buyer must first understand how a Wireless TV sender works. A Wireless TV sender is connected to the main television by way of a SCART socket. The SCART socket is the largest socket located on the back of the television.

The wireless TV receiver is plugged into the secondary television by way of its SCART connection. Once connected, the secondary TV is able to receives radio signals transmitted from the TV sender connected to the main television in the other room.

With a Wireless TV sender, the user can view the television signal on two different televisions in two different rooms. The receiver can also send a wireless signal to the TV sender, commanding it to perform specific functions, such as changing the volume. This is only possible through the use of an infrared sensor on the receiver. The remote control for the main television can be used with the receiver from the secondary television. The remote control is pointed at the infrared sensor on the receiver. When the user pushes the volume button, a signal is transmitted from the secondary TV to the TV sender on the main television. It is important to source an additional remote control as this avoids the user having to take the remote control with them when they move to another room to watch television.

Artical from: Wireless TV to TV Sender Buying Guides

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PAT-260 Wireless Strong Penetration A/V Transmitter from PAKITE

PAT-260 - 2.4GHz Wireless Strong Penetration A/V Transmitter from PAKITE

PAKITE Wireless AV transmitter receiver is well knowed and professional. I had been using a 5.8 GHz audio/video system to transmit a video signal from my cable box(Converter Box) to a television one floor below. By placing the transmitter on the floor and the receiver near the ceiling below, I was able to get the units to within about a foot of one another, separated by the floor.

The system worked well until we moved the television to the floor above the Converter Box and, for practical and aesthetic reasons had to separate the link by about 25 to 30 feet with the floor in between. Unfortunately, in this new location, the signal became too weak to establish a wireless link so I decided to try this PAKITE PAT-260 system which is based on 2.4 GHz technology.

A 2.4 GHz signal can penetrate further into solid objects such as a wall or floor than a higher frequency 5.8 GHz signal. As a general rule of thumb, the higher the frequency, the better the video quality but the less penetration ability of the signal. So, if you have "line of sight" or LOS (i.e., no objects between the two units) at a reasonable distance then 5.8 GHz is the preferred system for acouple of reasons.

First, as noted previously, you can get a higher quality picture and, second, you can avoid interference from a range of devices(cordless phones, remote controls, wifi routers, etc.) in the crowded 2.4 GHz band. Of course, I don't have LOS and the increased distance between the transmitter and the receiver make 2.4 GHz my best option.

The system was easy to setup. It consists of two 4" X 3 1/2" unit seach of which has a 6" antenna and a power "cube" that is plugged into a wall outlet. One unit has "wireless transmitter" imprinted on the front, the other imprinted "wireless receiver". Of course, the transmitter is connected to the audio/video source while the receiver is connected to the television display. It comes with two, three-wire(red/white/yellow), audio/video connection cables with male "RCA jack" connectors. These are the cables where red and white are the two stereo audio channels and the yellow is the raw "composite" video signal. (Note: Since they both use the same round connectors, don't confuse the composite video output which carries the video signal on one cable with the red, green, blue "component" output swhich carry the three components of the video signal on three cables.)

Once set up you will need to make sure the transmitter and receiver are operating on the same channel by setting/matching a series of switches on the back of each unit. If you are getting wireless interference, then you will need to step through each channel (a total of eight channels) until you find a clear link. The link will work with any device that has a "composite" video(round yellow connector) and mono or stereo audio connections. So far it is working well for my application.

The PAT-260 av sender also supports a remote control extender which allows you to use an infrared remote to control the video source through the receiver box. Thiss ub-system uses a "reverse" link that transmits the remote signal through a separate wireless connection in which the receiver box "transmits" the remote signal to the transmitter box which then controls the video source. The system comes with an infrared transmission extension cable which is plugged into the transmitter and can be positioned infront of the IR detector on the video source.

I haven't set up this feature because we want to keep the remote control with the downstairs cable box and television. But, if needed, I would expect that we could buy a universal remote and set it up to run through the PAT-260 link.

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Smart times

With the popularity of smart phones, smart home also catch a ride on the mobile Internet. Compared to earlier years chisel wall wiring needs to go to war conditions, today's smart home just a cell phone can be achieved. Nanjing IOT Technology Department official told reporters that the current Smart home market has entered the era of wireless cable from the era, a variety of intelligent hardware after another, and the most common approach is to be APP, the equipment and mobile phones together, side by APP mobile phone to check the status of the device, or to control the device, which the implementation of intelligent species is most common. He told reporters: "At present, the majority of people in Nanjing have a wireless network at home, but also in the hands of smart phones, the hardware basic conditions."

　　　　But reporters in the west a smart home experience museum experience with a mobile phone found after control TV, virtual keys feel inferior to physical buttons is an indisputable fact. In addition, Common entity able to use the remote control to get up, then go through to unlock the phone, download the client, open the APP, TV connection, select the desired control mode, and many other steps, even the staff of the store with them is not so handy.

Artical from: Smart times

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Output power of an analog wireless TV sender

Output power of an analog wireless TV sender

The output power of a wireless TV sender( or wireless av sender ) is the electric power applied to antenna system. There are two definitions: nominal (or peak) and thermal. Analogue television systems put about 70% to 90% of the transmitters power into the sync pulses. The remainder of the av transmitter's power goes into transmitting the video's higher frequencies and the FM audio carrier. Digital television modulation systems are about 30% more efficient than analogue modulation systems overall.

    1 Analogue vs digital

    2 Power defined in terms of voltage

    3 Nominal power of a wireless TV sender

    4 Thermal power

    5 Ratio of thermal power to nominal power

Analogue vs digital

Analogue

    The large amount of energy that Sync Pulses use is largely independent of the measurement system and efficiency of the analogue wireless TV sender (as most analogue transmitters have on average 75% efficiency).

    The transmission of FM audio (including Stereo subcarriers) is only overall the 3rd largest consumer of wireless TV sender power.

    Power consumption (most to least) : Sync Pulses, High Frequency Video, FM Audio, Vestigial AM

Digital

    DVB like transmission systems, with their groups of mathematically related carriers are not quite as energy efficient as 8VSB systems

    8VSB transmission systems only provide a limited "Forced DC" signal (that consumes about 7% of the transmitters energy) that under multipath conditions can be lost causing a signal lock loss event

Power defined in terms of voltage

The average power for a sinusoidal drive is

For a system where the voltage and the current are in phase, the output power can be given as

In this equation "R" is the resistance and "e(t)"  is the output voltage

Nominal power of a wireless TV sender

Nominal power of a wireless TV sender is given as the power during the sync interval. (For the sake of simplicity aural power is omitted) Since, the voltage during the sync interval is a fixed value,

where "E" is the rms value of the output voltage.

To measure the nominal output power, measuring devices with time constants much greater than the line time are used. So the measuring equipment's measure only the highest level (sync pulse) of a line waveform which is 100%.

This power level is the commercial power of the transmitter.

Thermal power

In analogue TV broadcasting, the video signal modulates a carrier by a kind of amplitude modulation (VSB modulation or C3F). The modulation polarity is negative. That means that the higher the level of the video signal the lower the power of the RF signal.

The lowest possible modulating signal during the synchrone interval yields 100% of the carrier. (The nominal power of the transmitter.) The blanking level (300 mV) yields 73% (in an ideally linear transmitter). Usually the figure 75% is found to be acceptable. The highest modulating signal at white (1000 mV) yields only 10% of the carrier. (so called residual carrier). Sometimes 12.5% is used as the residual carrier so the output power applied to the antenna system is considerably lower than the nominal power.

The thermal power which can be measured by a microwave power meter depends on the program content as well as the residual carrier and sync depths.

Ratio of thermal power to nominal power

Since the program content is variable, the thermal power varies during the transmission. However, for testing purposes a standard line waveform can be applied to the transmitter.

Usually line waveforms corresponding to 350 mV or 300 mV black image (and without field sync) are applied to the input of the transmitter.

For System B, the duration of the black level 300 mV (together with the front and back porches), is 59.3 μs and it corresponds to 73% of maximum voltage level. The duration of the sync pulse is 4.7 μs. The total duration of the line is 64 μs.

So the maximum thermal power applied to the antenna system is 57% of the nominal power, even in the black scene. In normal program content this ratio may be around 25% or less.

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