My recollection is 3dB is 77MHz because this is what we put in the spec sheet.
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 3:43 PM, Gerald Youngblood <[email protected]>wrote: > Steve, the filter goes above 70 MHz but I don't remember the cutoff at the > moment. > > Sent from my iPad > > On Aug 18, 2012, at 9:33 PM, "Stephen Hicks, N5AC" <[email protected]> > wrote: > > > George, > > > > Yes this certainly can be done. We have a couple of options to show the > > "entire spectrum." One would be to show 0-61MHz and the bin size -- the > > amount of spectrum in each horizontal pixel -- is just under 30kHz. The > > other option would be to view 0-122MHz with a bin size of 60kHz. In this > > case, everything above 70MHz would be significantly rolled off because of > > our 70MHz LPF. So 70-122MHz would not have much useful data although you > > could probably see very strong stations such as FM broadcast stations. > My > > inclination is to do 0-61MHz, but I would be interested if there are > other > > opinions about this. They both cost us about the same in terms of FPGA > > fabric. > > > > > > 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]< > https://mail.google.com/mail/mu/mp/732/?source=na&ver=1.3&hr=1&hl=en> > > Web: www.flexradio.com > > > > > > > > *Tune In Excitement™* > > PowerSDR™ is a trademark of FlexRadio Systems > > > > > > On Saturday, August 18, 2012, George Allen wrote: > > > >> Since the SCU digitizes an astounding amount of the radio spectrum in > >> real-time, can the entire spectrum be displayed, in a single display, > to > >> provide a spectrum analyzer capability? > >> > >> This would be pretty handy when trying to analyze the output of a > >> home-brew rig. > >> > >> George > >> K2CM > >> > >> > >> > >> _______________________________________________ > >> 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. > >> > > > > > > -- > > > > 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 > > _______________________________________________ > > 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.
