There are some considerations other than battery life. Those are range, line of sight constraint, interference, compatibility and two way communications. Original Equipment Manufacturers (OEMs) usually ignore the remote control range. In contrast, it is a significant issue for satellite providers and multiple system operators who receive customer satisfaction or complaints accordingly. An internal regulator takes place in the transceiver of ZigBee remote and transmit power will always be kept the same even the voltage level drops as the battery gets old. Remote control range will not vary until the battery voltage decrements under the dead battery threshold. In this way, it is not necessary to be concerned about directing the remote controller to devices from a distance as the battery goes low. Furthermore, consumers need not to press repeatedly to buttons in order to transmit commands for their STBs. ZigBee remote controls have a further power management related with range. Quality of received signal can be measured and transmit power could automatically be decremented accordingly by the remote control as the connection with the controlled device is sustained. Thus, consumer experience will not be affected as an energy saving method is applied.
Radiation pattern of ZigBee remote controls are omnidirectional and the signals can pass through materials like house-hold goods, vegetation and can even reach another room. As a result, the audio-visual devices and STBs can be located without concerning line of sight connection between the remote control and the controlled device. Moreover, ZigBee remote control devices are robust against the interference with TV backlighting signals and other radio frequency (RF) signals.
ZigBee remote controls are intentionally designed such that they conform to standards-based equipments from a variety of vendors, interacting flawlessly and with a user-friendly installation. This makes the interoperability between devices much easy. The last consideration has been two-way communications. As ZigBee remote control has two-way communication capability, it is a possible candidate for appending more novel functionalities to its controllers. The commands can be acknowledged and users get the benefit of it if they are trying to utilize from another room. Downloading playlists and program menus could be possible for the remote controls with a display. It will also be likely to make some upgrades and fix some problems within the remote control.
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