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.
