Idea Box: 10GHZ TX Mixer from the cheap HB100 Module ?

I may have mentioned it before, but I intend to use this blog, not just for telling you about ideas etc, but also for me to be able to find old ideas I have had.

Looked through 10GHz websites. Found a teardown of the HB100 Doppler radar module. It turns out that, apart from the expected DRO (oscillator) is a passive balanced diode mixer, much like seen in older LNBs. It looks like a simple modification of the HB100 module - removing the DRO (or maybe just the power for it) - and entering another LO signal, the mixer could be used the other way, too, i.e. a TX mixer.
The modification should involve adding a few SMA connectors (two for RF/LO and another one (maybe SMA, too) for the IF port, and likely cutting a PCB line from the original oscillator.

The idea could be tested by using the module as it is, just entering a low frequency (IF) drive signal and see what comes out on the RX port.

The HB100 module is an interesting device, even for modification or salvaging the very few microwave components it has, the price of the module off eBay is less than $5.