I noticed the frequency range of CN0507 is determined by the low-pass filters (HMC1044) and the directional couplers. The hardware should work up to 6GHz, if I replace HMC1044 with another filter up to 6GHz and replace BDCN-14-342+ with another coupler up to 6GHz.
I wonder if I can set the sweep frequency beyond 3.4GHz in software. I haven’t got the board yet so I cannot try. I just found a hex file for the software and I cannot find the source code.
Could you please help me to find the source code?
Also, do you have any plan to build a low cost VNA up to 6GHz? That will be fantastic.
Thank you very much.