Hi Attila, > So, that'd mean there would be an automatic calibration system inside > the device, because i dont have any equipment with which i could > calibrate delays over a temperature range.
I suppose they could do that---provide a weak broadband source (say a comb) combined with the antenna signal prior to the channel filters, and provide a reference channel for this calibration signal to compare against on-line. Or they could calibrate just once at production time, which would be less expensive---the system would then compensate open-loop based on temperature. > Nice disertation, but i cannot see how you come to the conclusion > that this temperature coefficient is from the input RF chain. > The measurement shows only a general time shift of the whole device. > And the author does not draw any conclusion from it. Well, it would have to be the front end. DSP doesn't drift with temperature. Cheers, Peter _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
