QUISK and linrad

[Leif Asbrink]

Hello John,

> I was curious if the LimeSDR is on your radar for possible
> LinRad support?? It won't be shipping until late November, but it has
> some interesting specifications (for one, it's a transceiver, not just
> a receiver). 
> https://www.crowdsupply.com/lime-micro/limesdr
> http://www.limemicro.com/

I find no information about the tuner chip. It seems to me
that this product is intended to do all processing in the on-board
fpga. That does not fit Linrad which is designed to operate
on an unprocessed baseband signal. The only need for an fpga
when interfacing to Linrad is managing the USB link and possibly
some resampling if the sampling rate of the ADC is too high for
the USB link, plus, of course managing the control signals to the 
tuner chip. (And corresponding for the transmit channel.)

In case someone else develops fpga code that makes a decent
SDR out of the LimeSDR with an appropriate library with an
API that can reasonably easily be called from a C program
I might become interested. I am not going to write fpga
code myself - and also not a library to provide an API.

73

Leif