The preamp is the other difference which you mentioned earlier. Yes, we are very excited also and working hard to get everything completed.
Steve Stephen Hicks, N5AC, AAR6AM VP Engineering FlexRadio Systems™ 4616 W Howard Ln Ste 1-150 Austin, TX 78728 Phone: 512-535-4713 x205 Email: [email protected] Web: www.flexradio.com *Tune In Excitement™* PowerSDR™ is a trademark of FlexRadio Systems On Sun, Aug 19, 2012 at 6:17 PM, <[email protected]> wrote: > Steve, > Thank you very much for responding to my questions; I just wanted to > compare the two hardware models on a HF basis excluding the diversity > setup and oscillators. I know all of you are quite busy at this point and > I am extremely excited to be in the queue with an order placed (6500 & all > extras). I also placed an order for the GPSDO option. I believe in future > software upgrades the GPSDO will provide a new gateway of options to say > the least. As you can tell I am really excited about this. > > Thanks and 73's, > Joe > > > Joe, > > > > You've mentioned the only hardware differences in the two radios already. > > At this point, our goal is to place the same performance code in the > FPGA > > of each radio -- one radio just has more slice receivers. Moving > forward, > > it is possible that with more resources in the 6700 that more performance > > of some kind or another might be achieved, but in general the receivers > > will perform the same. > > > > Incidentally, with respect to the oscillators in the two radios, there > are > > two key performance factors: Frequency stability and phase noise. The > > former affects just what it indicates: your frequency stability. There > is > > a difference in the two radios here. The 6500 has a TCXO and the 6700 an > > OCXO from the factory (specs on the data sheet). The OCXO is, of course, > > a > > more stable reference and can be added to the 6500. From a receive > > performance perspective, however, the two have identical phase noise and > > so > > they will perform similarly. The phase noise is not set in the > TCXO/OCXO, > > but in the master oscillator running just shy of 1 GHz. > > > > The short answer is that the radios have the same performance. > > > > Steve > > > > Stephen Hicks, N5AC, AAR6AM > > VP Engineering > > FlexRadio Systems™ > > 4616 W Howard Ln Ste 1-150 > > Austin, TX 78728 > > Phone: 512-535-4713 x205 > > Email: [email protected] > > Web: www.flexradio.com > > > > > > > > *Tune In Excitement™* > > PowerSDR™ is a trademark of FlexRadio Systems > > > > > > > > > > On Thu, Jul 19, 2012 at 1:59 PM, <[email protected]> wrote: > > > >> If you had a 6500 and a 6700 on the same antenna and on the same > >> frequency > >> (HF Band Only as this is the range for the 6500); are both units equal > >> in > >> specification ability (MDS, IP3, Dynamic Range, etc.)? I ask this > >> because > >> I know there is some hardware difference between the two regarding the > >> FPGA. From what I understand the SCU's are equal except for the second > >> preamp in the 6700 which I figure would be used in the VHF range (6700 > >> Only). I do realize there also is a different oscillator tolerance > >> between > >> the two. Thanks for answers on this. > >> > >> Thanks, > >> Joe > >> WD5Y > >> > >> > >> _______________________________________________ > >> Flexedge mailing list > >> [email protected] > >> http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz > >> This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is > >> used for posting topics related to SDR software development and > >> experimentalist who are using beta versions of the software. > >> > > > > > _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
