Greetings all
Am 09.04.2011 22:38, schrieb Stefan Schäfer:
Hey Eddie,
Take a look on your wideband grabber ;-) Then you see, GQD wasn't off
during the last hours...
Help is on the way soon: I have added the option in SL to tie the
soundcard's sampling rate to a GPS receiver.
Initial tests look promising: The output timing jitter from a Garming
GPS 18x LVC (emphasis on LVC) seems to be much better (lower) than the
+/-1 us accuracy specified by the manufacturer. I bought mine for 60
Euro from RS Components (p/n 010-00321-36). Details on how to set it up
later. I am still working on a decoder for the NMEA bitstream via
soundcard (same channel as the PPS signal). With that, a carrier would
remain coherent even after a 'glitch' from the soundcard.
GPS is less likely to be switched off temporarily - even with the
'jamming tests' mentioned here a few weeks ago.
Have a nice sunday,
73, Wolf DL4YHF .
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