Leave it to me to offer a statement that provides me the opportunity to insert my foot in my mouth! :-) I was remembering using one of our older receivers that was memory limited to 512M. We logged data 40 min before/after flight and had to clean it out each night before the next day's work or there were definite problems.
Tom -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Timo Juhani Lindfors Sent: Tuesday, October 25, 2011 12:48 PM To: Open Source GPS-related discussion and support Subject: Re: [FOSS-GPS] Post-processing RINEX to simulate RTK "Homan, Thomas" <[email protected]> writes: > eloped during the RTK session. 20Hz data collection was probably fine > but the RTK processing of our 2 different mfr's work at 1 or 2 HZ. As > I'm sure you saw, 20Hz data fills up memory cards VERY quickly. Hmm. For RTK I receive RXM-RAW and RXM-SFRB messages from my ublox antaris 4 receiver. RXM-RAW messages take 8 + NSV * 24 bytes and 42 bytes. Even if you use 20 Hz and assume that you see 15 satellites (clearly not possible) you still only get 20 * (8 + 15 * 24 + 42) = 8200 bytes per second. My 8 GB SDHC card that costs 13 EUR can thus store data for about 11 days. _______________________________________________ This message is sent to you from [email protected] mailing list. Visit http://lists.osgeo.org/mailman/listinfo/foss-gps to manage your subscription For more information, check http://wiki.osgeo.org/wiki/FOSS-GPS _______________________________________________ This message is sent to you from [email protected] mailing list. Visit http://lists.osgeo.org/mailman/listinfo/foss-gps to manage your subscription For more information, check http://wiki.osgeo.org/wiki/FOSS-GPS
