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A comment on RF Breadboarding System. Parent comment

Re:RF Breadboarding System by edrxty on Saturday April 22, 2023 @12:48AM (#35663425)
How are you thinking you'll structure your frontend? I've been looking at ZIF, maybe the CMX991 or similar.

One thing I've also been investigating is the possibility of pushing the bandwidth way up to 10-20MHz and using a larger FPGA for DSP then conversion to PCIe. An increasing number of smaller SOCs/SOMs are supporting PCIe so that opens up interesting options like a CM4 on the low end or a Jetson Nano on the high end for all manner of shenanigans.

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Re:RF Breadboarding System by ChuckMcM on Saturday April 22, 2023 @01:29AM (#35663647) 

    LNA -> band filter -> mixer -> LPF -> ADC
                            |
                           LO
My current bodged together setup as 40/20/15/10M filters tied to a 4:1 RF switch (mini-circuits).

The "easy" design is the reference design for the AD9863 (they even have layouts you can use) but I wanted to see if I could make it so that the entry level version was very inexpensive and you could add money for more capability.

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Re:RF Breadboarding System by edrxty on Saturday April 22, 2023 @02:13PM (#35669414)
Nice, that's a good band selection. With the 9863 you could pretty much cover everything without even mixing but you'd be looking at some high end FPGAs and processors
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