ARLA/CLUSTER: Depois de receber com um SDR o seu próximo passo é transmitir

[João Costa > CT1FBF]

Lime SDR (and PLUTO, too) sends TV
If you have experienced software defined radio (SDR) using the ubiquitous
RTL SDR dongles, you are missing out on half of it. While those SDRs are
inexpensive, they only receive. The next step is to transmit.

[Corrosive] shows how he uses DATV Express along with a Lime SDR or a Pluto
(the evaluation device from Analog Devices) to transmit video.
He shows how to set it all up in the context of ham radio. An earlier video
shows how to receive the signal using an SDR and some Windows software. The
receiver will work with an RTL SDR or a HackRF board, too. You can see both
videos, in the link below.

The DATV Express software has plenty of options and since SDR is frequency
agile, you ought to be able to use this on any frequency (within the SDR
range) that you are allowed to use. At the end, he mentions that to really
put these on the air you will want a filter and amplifier since the output
is a bit raw and low powered.

If you are old enough to remember when a TV transmitter was a big box full
of circuitry, seeing video pour out of a little circuit board is pretty
amazing. What’s more, is that on transmit and receive you can do an
impressive amount of processing in software that would have been very
advanced using traditional hardware.

Oddly enough, the RTL SDR was originally made to receive TV anyway.
You can actually do the transmit with nothing but a Raspberry Pi, and
[Corrosive] mentioned he’ll do a video about that soon.

https://hackaday.com/2019/01/19/lime-sdr-and-pluto-too-sends-tv/

*•* Our thanks to *Stephen, G7VFY* for spotting this item
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