Hi Clay: We have another report from Europe on the BugTracker that the noise blankers and the automatic notch filters were not working on a FLEX-1500.
They work fine on my FLEX-1500, here at home, and any of the BetaTest units in the field, that I am aware of. So, current status on those bug reports is "Not Reproducable." But something is going on. So, what OS, Computer, Sound Card Drivers are you using? Anything else you can think of that of that might help us see or reproduce the problem? Thanks, --- Graham == On Sun, Jul 11, 2010 at 1:21 PM, Clay W7CE <[email protected]> wrote: > I did an A/B comparison today of the noise blanker on the 1500 vs. my > 5000A. With a 6M power line noise observed on both at S3 strength, I turned > on NB and NB2 on both receivers. On the 5000A, the power line noise > disappears and the S meter dropped to about S 0.5. On the 1500 there was no > change in the S-Meter. Also, I could not detect an audible change in the > power line noise. I did this test with both receivers set to 48 KHz > sampling, RX Buffer Size of 2048 and USB with 2.7 kHz BW. The NB and NB2 > Thresholds are set to the defaults of 20 and 15, respectively. I have tried > this with different power line noise sources of different amplitudes and the > 1500 noise blanker doesn't seem to do anything. > > I first noticed this on the PSDR 2.0.2 on the 1500, but only started > investigating today after upgrading to 2.0.5 (Firmware 0.4.1.2). The 5000A > is running PSDR 2.0.0 Beta, Firewire Driver 3.5.2.8028 and Firmware 2.0.2.2. > > Is anyone else noticing that the 1500 noise blanker doesn't seem to work > well? The noise blanker is one of the best features of PSDR, so I hope this > is a temporary problem. > > 73, > Clay W7CE > > _______________________________________________ > 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 alpha and 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 alpha and beta versions of the software.
