2768Re: [V4Protocol] Announcement -- TS-590S TechNote: SSB Audio Handling v1.0
- Apr 23, 2012___Original Message_________________________________________
From: Rick Muething <rmuething@...>
Date: Mon, 23 Apr 2012 Time: 07:30:28
>In general what do you think of the TS-590 and have you compared it toRick
>the Icom 7200?
My thoughts on the TS-590S tally very closely with most of the reviews
on Eham -- in other words, I am extremely happy with it all round (but
especially the receiver, which is outstanding for a radio in this price
bracket). I have no experience of the IC-7200, so I can't offer any
>One thing I would be interested in too is if you have made any
>measurements (they aren’t easy to measure) of the sample rate accuracy
>of the built in sound card.
No, I haven't made any detailed sample rate accuracy measurements with
the TS-590S or PC sound cards. That is something I want to look at in
more detail. I have not played much with low-level signals or multiple
carrier signals on this radio, where sampling accuracy can obviously
make quite a difference.
>The TS-590S uses the PCM2903B stereo audio CODEC:
>I suspect Kenwood and Icom are using a
>generic USB CODEC sound chip
>The whole world is very much looking forward to this!
>I have been keeping up with (and making occasional contributions to) the
>work on a open source Voice codec (good voice quality at about 1200
>bits/sec and 1500 Hz bandwidth). This is being done by David Rowe in
>Australia and it would be a perfect fit for a radio like the TS-590. David has
>achieved better performance than the proprietary CODEC used in the
>D-Star radios and I think will soon have the matching HF Modem ready for
>initial beta testing.
Finally, all your comments are most interesting -- sorry I can't add
much to them.
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