The DigiLite Project is a system designed by radio amateurs to provide a low cost homebrew method of transmitting live digital TV pictures (DATV) . It is a derivative of the “Poor Man's DATV System” which many amateurs have contributed to over several years. Not available as a kit, but with the BATC single board and some of the more difficult to obtain parts available from the BATC shop it means a self-build digital modulator is now within the reach of everyone.
Information here is freeware and is not for commercial use, the DATV software should not be modified or released without G4EWJ approval. Any files downloaded from other sites remain the property of the originator and any copyright remains theirs. See EULAs therein.
This website is maintained on a daily basis to ensure that modifications and design changes to the DigiLite software are always the latest versions. Please do not reproduce these pages on other websites as they can not be kept up to date. If you wish to reproduce images or extract a few parts of these pages to use on your website you may, but please ensure that links to this index page are clearly visible. Full legal statement click here.
PROJECT NEWS 6 June 2013
One of the big irritations with the DigiLite project is the need for a PC to be used to record the data stream and insert the necessary parameters for transmitting. With the arrival of the MK808 Smart Stick using Linux it has been possible to avoid using a PC entirely and Rob M0DTS has successfully got his prototype running (using the old individual two-boards version).
The BATC shop is no longer stocking the G8BYI DigiLite Controller pcb. If you require a Controller pcb please contact me (G8AJN) direct as I keep a small stock of boards.
See the details on the OTHER/G8BYI Tuning Board page.
How to use this website:
Take a look through the overview on the PROJECT menu.
Download the circuit diagram from CIRCUIT DESCRIPTION
Get yourself a secondhand Hauppauge WINTV PVRx50 PCI video capture card or a USB stand-alone version if preferred and set a PC up to record from the video input of the PVR card. The DigiLite software can be downloaded from SOFTWARE/DOWNLOAD. TRANSMIT will use this stream of data whilst it is recording to build up a suitable Digital Tv signal for ATV use. Settings are made using CONFIG. Details of the various software options are on the other SOFTWARE pages.
The DigiLite is a serialiser/ modulator board, a separate pll local oscillator is needed and a plug-in USB interface . The BATC shop keep pre- programmed chips and USB interface boards ready to use as well as many of the harder-to-get parts available individually in the BATC Shop.
You will find detailed instructions to enable you to build, without expensive testgear, a good quality digital encoder from scratch and you will learn how it all works and have the pleasure of seeing your own handiwork in action. Don't worry about the technicalities, there are very detailed instructions with extra help pages and if you still have trouble after building it there is plenty of help on the BATC Forum.
We would like to thank the BATC for their efforts in getting behind this project and help in making it public.
Please consider joining the BATC and give them your support to get more projects like this published.
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