Wireless Digital Video:Frequency and channels

From Wireless Digital Video
Jump to: navigation, search

Frequency and channels

  • WiDV uses 802.11a/b/g channels for video transmission and it works on 2.4Ghz and 5Ghz. Users can switch to 2.4Ghz and 5Ghz by simply using the menu bottom bar.

Rx osd frequency.png

  • The radio spectrum used by some frequencies tends to be crowded due to continuous increase of devices that have wifi built in. In order to avoid any interferences from any other radio equipment we have developed an automatic channel change mechanism so that the transmitter and receiver will try to use the least busy channel. Please note that WiDV devices might not work correctly on crowded areas where the radio spectrum available is minimum, producing noise and delay on the video.
  • When booting the device will read the default channel from the configuration file. You can then change to any channel by using the arrows. In order to start receiving video from the transmitter you need to select the same channel that the transmitter is on. This is the usual behaviour when the device is unlinked. More information about link modes here.

Rx osd channel unlinked.png

  • After linking the transmitter and the receiver, the channel section will change to "Automatic" mode and the arrows to select channel will be disabled. On Automatic mode the transmitter and receiver will change channel automatically if the current channel is busy.

Rx osd channel automatic.png

  • To force channel selection manually you can click on "Automatic", that way you can switch to "Manual" mode to select the desired channel. Please note that once linked to a transmitter, changing the channel will affect transmitter and receiver so no video is lost. "Manual" mode could make you end up on a very busy channel where both transmitter and receiver are not able not see each other, if that is the case they would go back automatically to the previous working channel.

Rx osd channel manual.png


  • Please note that there are different regulations on the 802.11a/b/g spectrum depending on the country you are located. You will need to specify your country using the configuration file both on the transmitter and on the receiver.