Hi Azelio,
On 05/02/2012 11:19 PM, Azelio Boriani wrote:
The phase of the PPSOUT and the generated 10 MHz will probably not align
up,>something which is critical to some applications.
Yes, for example the DVB-T SFN requires the PPS and 10MHz phases to be
aligned, better, not to move. This requires to slightly alter the 10MHz to
keep the PPS aligned.
Actually, DVB-T SFN doesn't really require that. It is claimed that some
transmitters do require it, but I still want hard evidence for that.
I keep hearing strange interpretations of what DVB-T SFN really
requires. The spec leaves room for improvement.
Let me ask Bjorn: did you succeed in aligning the two PRS10? Moreover, what
do you mean by "each other", a scheme like this:
|-------------------------------------------------------------------|
| |
| PRS10A PRS10B |
|--->PPS IN PPS OUT------>PPS IN PPS OUT--|
hoping that the font doesn't mess up the ASCII schematic...
PRS10A PRS10B
PPSOUT --> PPSIN
PPSIN <-- PPSOUT
I believe he meant.
I also believe he used a separate source for the later experiment.
Cheers,
Magnus
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