2018年5月1日 星期二

USB DVB-T TX Modulator transmitter generator can transmit over 300meter~0.5km by Wireless UHF


This is WINDOWS only  USB DVB-T TX dongle.

http://febon.blogspot.com/2013/10/windows-version-user-manual-for-usb.html




It can broadcast the video source from windows.

video source maybe video clip , usb webcam live stream, live windows desktop .



We want to let the wireless broadcast to be 300m~ 0.5KM.

We need add the Power amplifier ( PA ) to be strong the UHF signal .


  






USB DVB-T TX dongle +  Power amplifier + antenna is as below notice items




Notice:

1. add the PA (power amplifier)



1. The distance between Power amplifier and antenna must be more than 3 meter.



2.  the placed away from the walls and railings.

    The best location of  antenna is open void (wide spacious)
   ( in my video demo, it is not 100% spacious and empty-void.)

  in my test environment, it  is not good





I use APPLE mac air + usb DVB-T RX dongle to receive the live stream from "USB DVB-T TX"

We will go to  the place that is far away the antenna about 300m






After I change the location of antenna, the wireless distance rise to 1km.






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