On 12 September 2014 18:25, <[email protected]> wrote: > Re: > Yes done that mine is +62 ppm at the moment. The solution IMHO is an oven > controlled oscillator module ( rather than a TCXO) , but if I'm going to > change to one of those, then I may as well go to 48Mhz at the same time - if > it'll work. > > If you set up the software to periodically ensure a frequency reference such > as LTE and periodically adjust the error, it will be as good as using an > ovenized xtal. > > Where in dump1090 do I set a compensation?
--ppm command line option That said, my experience has been that once you have the initial adjustment in place the stability over time isn't too bad - even if it's been sitting in the sun all morning, mine only changes from +47ppm to +51ppm or so - so automatic periodic recalibration is probably overkill. Oliver
