Usually these radio controlled clocks only check the time every few hours or when they are turned on. Normally the 1 pulse per second is just derived from the internal oscillator and I would expectyo
Hi Alberto, What an interesting experiment ! Do we have any idea about the internal workings of the "inexpensive", Conrad clock ? I was wondering if it contained some logic circuits, or even a microc
Thanks all for your comments. The clock has an analog part, the receiver, with a very small ferrite antenna, and a large black wax blob on the PCB, with many traces reaching it. Usually this is the l
Alberto, When I remember it right most "DCF-77 IC's" can be forced to receive mode (pulling a pin to ground or so). 73, Rik ON7YD The clock has an analog part, the receiver, with a very small ferrite
Hello Group, I made yesterday an interesting experiment and would like to know your opinions about it. [...] Hello Alberto and all, I think that the accuracy will never be sufficient for this kind of
Or if you think that you have a fever, you can have some real fun when you explain to your doctor how you measured your temperature! "Doctor, in the last couple of hours my fever went up at a rate o
I think that the accuracy will never be sufficient for this kind of measurement. I think you must make the comparation, but not whith the Conrad Clock. You musk take the pulse make from the RF signa
Hi Alberto ad all: When you install the GPS I think that you´ll probably find short-term variations in the same order, + - 100 nsec. 73 de José, EA1PX Hello Group, I made yesterday an interesting exp
