On 31/03/2020 11:51, Jim web wrote: > In article <[email protected]>, Budge > <[email protected]> wrote: > >> Further examination of symptoms suggests that the noise seems to be >> interference, either with Bluetooth headphone directly or through the >> Bluetooth transmitter. I suspect possible source of interference might >> be from wifi which could be from phone, laptop or access point but could >> be household electromagnetic interference (EMI). I am trying to relate >> the clicks to possible traffic. The clicks are not related to the data >> stream but occur in bursts with minutes of quiet between. Clearly more >> work to do! > > An RF scanner might be useful. FWIW I've been planning to buy an > ADALM-PLUTO SDR TX/RX as it can be modified to work from about 70MHz up > to 6GHz(!). I want to use one for tests on receivers. But this has been put > on hold due to our current 'difficulties'. Been more concerned with getting > food as my Chief Exec and myself (manual labour) are nominally > 'vulnerable'. Further OT but I aim to do some measurements prompted by > > http://www.audiomisc.co.uk/BBC/FMandNICAM3/FMandNICAM3.html > > to get some results on the *actual* performance of some tuners. > > But the PLUTO should also be useful for other investigations. :-) > > Jim >
Jim, What a splendid bit of kit and price is amazing compared to "real" radio gear. Sadly all relevant knowledge here is a bit beyond my pay grade as I stopped at the RA17 receiver. As for my problem clicks, I have the wifi kit in the frame as the villain at present and when I can find a spare 5GHz access point will try and eliminate all the stray 2.4GHz devices locally and see if that helps. As I read and think I am beginning to understand why copper/analogue most of the way might be best, after accepting the CD signal and after the first DAC. I think I should wind up this OT thread but if you have time and inclination I would enjoy sharing my findings with you. Regards, Budge _______________________________________________ get_iplayer mailing list [email protected] http://lists.infradead.org/mailman/listinfo/get_iplayer
