Receiving up to 6 or 10 GHz with "normal" RTL-SDR

[Dirk_SDR]

I would like to receive frequencies above the 1.8 GHz of the normal RTL-SDR sticks.
Looking for a downconverter I found this interesting project:

Testing the Electrosense Up/Downconverter Expansion Board For 0 – 6 GHz

The Electrosense network is an open source project aiming to deploy radio spectrum sensors worldwide. The idea is to help analyze and understand radio spectrum usage across the globe. Each sensor consists of an RTL-SDR, Raspberry Pi and an optional downconverter to receive the higher bands. If...

www.rtl-sdr.com

... but I couldn't find a seller for this board. Perhaps it isn't sold at all.
Or is there another (non professional, not so expensive) downconverter for SDRs?

 

[dave3825]

I would like to receive frequencies above the 1.8 GHz of the normal RTL-SDR sticks.

... but I couldn't find a seller for this board. Perhaps it isn't sold at all.

From the link you posted,

The board is not for sale, however you can apply to be considered for a free unit if you want to host your own Electrosense node and meet their criteria. If you do not you can still produce the board yourself. The team mention that the design is easily hand soldered, but there are a few difficult LGA components like the PLL, crystals and mixer which require a heat gun to solder. A the same time they also note that it is possible to get PCB manufacture and SMT assembly done for you for dirt cheap by PCB prototype companies like JLC PCB.

From that link "apply to be considered for a free unit there is also a buy option it seems.

Getting a Sensor
Apply For a Sensor
Buy a Sensor
Purchasing a sensor is the easiest and recommended way to get started contributing to the ElectroSense project. A pre-configured sensor kit is available from Jetvision and requires little technical expertise to set up and run. In case of any problems, we are here to support you with the setup.

 

[Dirk_SDR]

Thank you, I read parts of the Electrosense page and as I see there are 3 options mentioned to get the board:
1. Contributing to the project (I don't want to. Is it still running at all? Project pages? Results?)
2. Buy it from a jetvision webshop, where I don't find it.
3. It is open source, so I could build it by myself (I cannot)