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Showing posts with label Digital Amateur Digital Television. Show all posts
Showing posts with label Digital Amateur Digital Television. Show all posts

Sunday, 24 February 2019

Portsdown - again?

Well,

I've been building myself another Portsdown DATV transmitter.

This is the Portsdown 2019 - instead of the Filter Modulator board in the last version, this uses a LimeSDR Mini.

I'm rather pleased with this new build, it's a lot neater than the 2018 version I made:


You can see the LimeSDR in the picture above, its in a 3D printed case - that's now got a 20mm square fan fitted.



The front panel is a lot better than the last build, if I had got the holes for the LEDs upright it would have been even better.


I wanted this second Portsdown so I can take it portable without destroying the shack to remove the 2018 version.

I'm rather pleased with this.


Sunday, 28 May 2017

Telly - really?

Well,

I've started to play with Digital Television and the broadcasting thereof. The fist part of the puzzle was to construct a means of receiving my own signals so I chose the Minitiouner from the BATC of which I am a member.

I bought the PCBs and the bits and bobs from the BATC shop and have built the project:





The transmit side of things will be from the well publicised BATC project the Portsdown

There is quite a bit to this project, hardware wise, but initially we need a Raspberry Pi and some software to run something they call "Ugle Mode" whereby you can send a picture across the shack.

Well, it works:


So its time to progress the hardware some more and move forward with the transmitter side of the project.

Interesting start, egh?