af Solderdude » 3. okt 2013, 08:30
It is indeed a downside of the open design.
Some may experience more problems with it than others as it depends on the band the phone(s) work on as well as the distance from a cellphone tower.
The further the distance the more power the phone uses to connect with the tower and the stronger the signal is.
Above a certain power level of the phone it becomes audible by 'AM detection'.
The good news is (for those liking the sound but put off by the mobile phone/network noises) is that the amplifier can be built into a metal enclosure.
This will kill those problems at their root.
I have tried to convince Jeremy lots of times to offer a metal enclosure but alas he hasn't been doing much in this area.
My prototype is in a metal enclosure and workd fine, even with the tip of the tube popping out.
Use your ears to enjoy music, not as an analyzer.