Potentially Receiving up to 10 GHz with an RTL-SDR and Multiple SUP-24000 Downconverters
Back in 2016 KD0CQ discovered that a $5 DirectTV device with model name SUP-2400 could be used as a downconverter with an RTL-SDR for receiving frequencies of up to 4.5 GHz. A downconverter is a device that converts high frequencies such as 4.5 GHz down into a frequency actually receivable by the RTL-SDR. The SUP-2400 is able to be modified into a useful downconverter by opening it up and manually removing some mixing harmonic filters.
In his latest post KD0CQ shows how you could combine four modified SUP-2400 downconverters to create a quarduple conversion mixer which allows you to receive up to 10 GHz. The post goes into the mixing math and practicalities of this idea. KD0CQ writes that some amplification will most likely be required to push the signal through, and in the past he’s managed to receive up to 7.5 GHz.
I bought the sup-2400, but I never received it
You might want to contact KD0CQ directly for assistance. But we know from shipping our own products if you live in a country with very slow mail processing then the mail could take several months to arrive. Check http://track-chinapost.com/China_Post_Arrival_Time_Stat.php for an estimate. USPS mail would probably take about the same time.
When I looked for a source in Europe it’s not just 5$ anymore
Lol SUP 2400^10
And what can I receive in that frecuences?
such zeros in the title … 😛
Its a SUP-2400 admin sir …
Yes but you are going to use ten of them for this project ( ͡ᵔ ͜ʖ ͡ᵔ )