Hi Mike, the B200 should usually be a little more reliable than the RTL dongles; what gain setting are you using?
Best regards, Marcus On 08/25/2015 02:08 PM, Michael Thelen DK4MT wrote: > Hi Andreas, > > thanks for the hint. However I am using a Ettus B200 and do not have > access to a different SDR right now. I will test outside and then trying > to find out what is going on. > > BR > Mike > > >> Hi Michael, >> >> i read your mail and i could remember i had a similar problem with a lot >> of lost sync and bad block messages. >> >> My solution was to use a different RTL USB stick and to play with >> antenna type / antenna position and the gain of the RTL stick. >> >> I used a "classical" lamda / 2 dipol UKW Radio antenna. The stick was a >> noname. >> >> regards, >> Andreas >> >> >> >> >> >> >> Am 23.08.2015 um 20:02 schrieb Michael Thelen DK4MT: >>> Hi Marcus, >>> >>> thanks, tried your script and found out, that it is always a little bit >>> uncomely if something is not really reproducible. This is the status: >>> >>> With your script I did not get the earlier error anymore. However with >>> my original I did not get it either. Instead I get the following message >>> in GRC: >>> @@@@@ Sync State Detected >>> @@@@@ Lost Sync (Got 50 bad blocks on 50 total) >>> >>> I do not get this message if I run your script. Both scripts though do >>> not show RDS information. So before I steal somebody's time I wonder if >>> one reason could be, that I can only receive one station really at the >>> limit and only if I set gain to a max. I can hear fairly clear audio, >>> but I am not sure if I can conclude from, that RDS decoding should work. >>> I am pretty much insulated from RF at my place. What would be in favor >>> by people being sensitive to EM waves, but for experimenting it is >>> pretty bad. >>> >>> So I might gonna check this outside, where I can see in my car, that RDS >>> reception is working on my radio and then I can compare. Just want to >>> make sure we or you aren't chasing an error which might be based on poor >>> reception. >>> >>> However the messages in the terminal have been there last time and the I >>> copied to also were there. Still don't no if this is part of the problem >>> though. Therefore probably more testing on my side. >>> >>> Best regards, >>> Mike >>> >>> >>> >>>> Hi Mike, >>>> >>>> dashed only means "message port connection" rather than "item stream", >>>> so that's nothing to worry about, usually. >>>> So the bad news is that this is possible a GRC bug, which on the other >>>> hand is good news, because it means that gr-rds isn't broken, GRC just >>>> has a hard time correctly generating the python file. >>>> Since that worked for me: can you try the attached python file? >>>> >>>> Best regards, >>>> Marcus >>>> >>>> On 22.08.2015 11:26, Michael Thelen DK4MT wrote: >>>>> Hi, >>>>> >>>>> I am using GNU Radio 3.7.7.2 and I checked out out and built gr-rds. >>>>> However RDS Decoding is not working. I found that there are to two >>>>> connections have dashed lines (see picture). And in the terminal all I >>>>> get is Error: Cannot create connection. But I could not find a hint, >>>>> what is going wrong. Can somebody tell me, what to check for? >>>>> >>>>> Best regards, >>>>> Mike >>>>> >>>>> >>>>> _______________________________________________ >>>>> Discuss-gnuradio mailing list >>>>> Discuss-gnuradio@gnu.org >>>>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>>> >>>> _______________________________________________ >>>> Discuss-gnuradio mailing list >>>> Discuss-gnuradio@gnu.org >>>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>>> >>> _______________________________________________ >>> Discuss-gnuradio mailing list >>> Discuss-gnuradio@gnu.org >>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio