On Fri, 2012-05-04 at 14:35 -0400, W2XJ wrote:
> When I/Q is via Ethernet, I do not see a connector issue. Any I/Q device
> I purchase supports Ethernet or I don't buy it. I/Q over Ethernet opens
> the door to things that were previously very difficult in this hobby.
Which moves the specification problem from hardware to protocol.
But as long as the protocol is defined (ports, packet formats, how clock
distribution is handled, how does the software find out what sample
rates are supported, what word length, what percentage of the
theoretical bandwidth makes it thru the reconstruction filters, what the
frequency coverage is, how to set the carrier frequency.....), then a
ethernet based system would make some of the physical layer pain go
away.
> I for one use a computer to generate I/Q streams.
TMS320 DSP in my case, but whatever makes the stream it is the same
basic idea.
> I am opposed to a
> complete hardware solution. The amateur community collectively does a
> better job developing front ends than does any one manufacturer.
Not sure about that!
Most SDR software sucks from a usability perspective IME, but the nice
thing about separating the radio from the interface is that we can both
get what we want.
> Any
> SDR based system is as current as the latest software download.
Or (provided the specs are there) as current as the software you write!
73 Dan (M0HCN).
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|