Dave,
I think Hayward's book covers everything you suggested, except
PowerSDR. Take a look for yourself.
Tom
Dave Gomberg wrote:
At 08:38 PM 8/1/2009, Tom Thompson wrote:
The ARRL publication: "Experimental Methods in RF Design" by Wes
Hayward, W7ZOI, Rick Campbell, KK7B, and Bob Larkin, W7PUA answers a
lot of these questions plus chapter 10 deals very well with DSP.
Also, Doug Smith's book "Digital Signal Processing Technology" is
another excellent ARRL publication that deals with the fundamentals
of DSP.
So this book spends a good deal of time on why SDRs need such
intensive sw support in the PC? That doesn't really seem like an RF
issue to me.... And the book I am suggesting has next to nothing on
DSP.
Tom W0IVJ
Dave Gomberg wrote:
This post has me convinced there is a good market for a book,
provisionally titled:
SDR basics.
Chapters might be: Hardware radios, Software radios, PowerSDR,
Hardware considerations, Helper software and addons.
Not really a nuts-and-bolts kind of book, the list is good for that.
More a conceptual
description so that the meaning of the elements is well understood,
and there is a
link between buzz-words and acronyms on the one hand and concepts
and block diagram
functions on the other.
I would think given the target market, e-publishing would be best.
Comments????
At 03:02 AM 8/1/2009, Eddy Van de Velde wrote:
Using HRD v5.0 with com0com and VAC on SDR-1000 here. So, the delay
on PTT is not an issue for the SDR-1000 only. The problem is not in
the FlexRadio hard- or software.
Simply use two Virtual Com ports for HRD-DM780. One Vcom port for
CAT control between PowerSDR and the second Vcom port for PTT
control configuration in DM780. No delay at all on PTT if
configured this way.
Eddy ON5UQ.
----- Original Message ----- From: "Steven O'Neal"
<se_on...@hotmail.com>
To: "Flex" <flexradio@flex-radio.biz>
Sent: Saturday, August 01, 2009 12:43 AM
Subject: [Flexradio] Anyone using HRD V 5.0
I took the plunge and updated my version 4.0 HRD to version 5.0
and wanted to see if anyone else running a Flex has done so and
what sort of problems they are having.
Problems I have encountered so far:
Long delay going into and out of Transmit HRD Bug was already
open, so I added a bit more for the Flex 3000 in use here.
I had a Blue Screen of Death before using an earlier version,
current one is 2277.
Have not entirely figured out the setup for waterfall settings,
tricks and tips appreciated.
Olivia operation seems to be somewhat improved, worked a ZL on 20
the other night with a s/n of around -2 who was running Fldigi,
which has been slightly problematic in the past.
So anyone else running Version 5 of HRD?
--
Dave Gomberg, San Francisco NE5EE gomberg1 at wcf dot com
All addresses, phones, etc. at http://www.wcf.com/ham/info.html
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Dave Gomberg, San Francisco NE5EE gomberg1 at wcf dot com
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