--- In [email protected], "jgorman01" <[EMAIL PROTECTED]> wrote: <snip> > I understand your promotion of your products. But again, if I > understand what your promoting, forgive me if I have doubts that an > $85,000 system is comparable to what you say may cost less than $300. > In my soon to be 56 years on this earth, I have learned that you get > what you pay for and seldom, if ever, get a deal like this. If you > can offer one at that price, again, congratulation, you are going to > be the next Bill Gates!
If you told someone in the 1950s that in the last 10 years of the 20th century most people would have personal computers in their homes 6+ orders of magnitude more powerful than the computers of the day they would have been skeptical too. SDR is a paradigm shift. > You might also be up front and tell the folks on an HF Digital forum, > that as of the last ARRL review the turn around times of your system > makes it usable for ARQ modes at the least. Like 170 ms versus 24 ms > for the Icom ProIII. This is only a implementation issue particular to the SDR-1000. ***Please remember the board stack used in the SDR-1000 was designed originally as a hobbyist project.*** It already outperforms the IC-7800. The turnaround times will be improved to the Icom ProIII levels and better in the HPSDR designs and I am sure in the next generation product from Flex Radio. > Likewise that the group delay of the software > filters requires reducing the number of taps from around 2000 to 200+, > thereby reducing their effectivness for digital communications. See above. > You > might mentionthe ARRL tests showed the SSB carrier suppression and > opposite SSB suppression on TX is only 53 dB vs the ProIII's at >70 > dB. Again, over my lifetime, I have learned that not everything comes > up roses. Products require compromises and you need to be up front > with the pimples. See above. All of the things you mention are in the process of being improved upon are ARE NOT a limitation of the SDR concept in general. <snip> > I do understand how things are changing, but I also understand how > they are not changing. It does not appear so based on what you have posted so far. I think most hams fit into that catagory when it comes to SDR. > A little background. I am a BSEE, and when I > started work at Southwestern Bell Tele. (now AT&T) I was like you and > couldn't believe how backward folks were. How computers should be > changing the world RIGHT NOW. However, I learned there were budgets, > for hardware, software, and most importantly, hiring and training > people. These budgets were limited and controlled how fast things > changed. You can build a SDR for under $50 that far outperforms many 10 year old radios that still cost > $1000 (provided you already have a computer - if you don't add $400). <snip> > You want to multiply sales. Integrate it all, screen included. Make > it absolutely as small as possible, i.e. portable with a handle. Make > it run entirely off of 12 volts. Forget hard drives, find as small as > OS as possible and use a flash drive that can be exchanged for > upgrades. Make every file read only. Let the experimenters/devlopers > that know how use a regular computer and make the files writable. There are already those of us in the process of doing just that. Using a mini-ITX or nano-ITX motherboard, LCD screen, flash storage, and Linux. It won't look like a computer. It will be powered from 12 volts and have real knobs and buttons. From the outside you'll not know it is a SDR by just looking at it. > You have a decent product but so was the Edsel, betamax vcr, etc. You > have to find out how to make people want it, not bemoan the fact that > you built it but they won't come! Not a valid comparison. They are already coming. 1000+ SDR-1000s have been sold. 1000+ SoftRocks have been sold. SDR is the future. > Jim > WA0LYK > 73 de Phil N8VB <http://www.philcovington.com/SDR.html> <http://hpsdr.org> <http://hpsdr.org/wiki/index.php?title=HpsdrWiki:Community_Portal> <http://lists.hpsdr.org/pipermail/hpsdr-hpsdr.org/> Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/ DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion) Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/digitalradio/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
