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G4VXE (Tim): A 10GHz receiver using an LNBF and an RTLSDR - 10GHz RX for £20 or less?

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Laurent F6FVY tweeted the other day a very interesting link, showing that people had used a LNBF designed for broadcast satellite reception and an RTLSDR dongle for 10GHz reception.

There are two good videos and I particularly liked the one from EA5KGD showing his reception of EB5EA's 10GHz signals using the LNBF and the RTLSDR as an IF on around 618MHz.


So, I've ordered a suitable LNBF from the USA, which came in at just over £14 including shipping. If I can get a 10GHz receiver going for just under £20, I'll be happy!

The only puzzle I have at the moment, which I am sure is easily solved, is that the LNBF requires its power to be fed up the coax. I am not sure what arrangement to use for this in conjunction with the RTLSDR. If anyone has seen anything suitable written up, I'd be very grateful! It looks like I need to find a way of feeding the 12V up the coax...

This looks like it would be fun to get going. There's a 10GHz beacon on Cleeve Hill about 40 miles from here. I wonder if I could receive it and potentially look for rainscatter.

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