Dragan Milivojevic 2020/05/13 17:45
Since Gabriel is already doing a SDR similar to Pluto how big of an
overlap, in basic building blocks, is there between a SDR and a VNA?
HPSDR has a VNA functionality but I'm not sure how applicable that is to
this case.
Speaking about better RF performance for low cost for a V3.
> I would heavily suggest the amazing low cost (less than 10USD for 1unit)
> multi-core LPC4370 (FET100) (instead of an expensive FPGA+external ADC)
> that I'm using in my products (I have designed the HW, FW and host tools)
> AirSpy R0/R2 and AirSpy Mini, it is clearly unbeatable price with 12bits
> ADC max 80MSPS which can be easily driven in real-time over USB HS
> (480Mbit/s) with 20MSPS like done in AirSpy R2.
>
> For more details on AirSpy Firmware which could be reused for a very good
> VNA
> https://github.com/airspy/airspyone_firmware
>
> https://github.com/airspy/airspyone_firmware/wiki/AirSpy-firmware-directory-structure-and-software-architecture
>
> We could even think about a platform with LPC4370 (mainly for ADC+USB HS)
> + STM32H750 (for heavy real-time computation+display) or doing all just
> with LPC4370 as it contains 2 CortexM0 + 1 Cortex M4F @max 204MHz
> Any feedback is welcome
>
> Best Regards,
> Benjamin
>
>