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General Discussion / Re: New release-20170619
« on: July 06, 2017, 08:54:32 am »
Thanks for that Lee. I have yet to encounter loss of GPS with SD, but worth knowing there's already a fix.
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General Discussion / Re: New release-20170619
« on: July 05, 2017, 09:54:49 am »
I too, was wondering what advantage (if any) UDP would have over the FLARM mode.
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Technical Support / Re: GPS reception - GNSS only?
« on: December 20, 2016, 12:00:21 am »
I fly a Piper letterbox, so could do with a few extra sats! I have a WAAS EGNOS capable GNSS & Glonass bluetooth GPS (Dual XGPS160) which I'd love to use, but I have no idea how I could interface it with the PA unit. 
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Technical Support / Re: GPS reception - GNSS only?
« on: December 14, 2016, 10:11:58 pm »
Hi Paul,
Just upping the chances of maintaining a successful lock and memories of GNSS prediction graphs which gave low sat counts.
Nice to see you on here BTW - escaping from the flying forums for a touch of sanity perhaps? ;-)
David
Just upping the chances of maintaining a successful lock and memories of GNSS prediction graphs which gave low sat counts.
Nice to see you on here BTW - escaping from the flying forums for a touch of sanity perhaps? ;-)
David
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Technical Support / Re: GPS reception - GNSS only?
« on: December 14, 2016, 01:27:13 pm »
Ah - that's interesting. I was going to download the u-blox software and have a poke about, but my anti-virus program flagged up a Trojan warning, so I was going to give it a go on my 'testing' laptop later today.
It would be interesting to know from the tech guys if there is a GPS driver library loaded onto the RPi, so other dongles can be used or whether they just loaded the u-blox-specific driver. I have established that the RPi will work with a FlightAware dedicated 1090MHz SDR dongle, so maybe we have the library for GPS dongles too.
I also need to test if the orientation of the supplied dongle affects reception. The u-blox patch antenna is on the black-printed side (uppermost when plugged into the RPi) of the unit and I know that my XGPS160 definitely does not like trying to 'see' through the PCB and battery. It might be worth mentioning this to those users who remotely mount the GPS dongle.
Part of my 'wishlist' would be support for dual GNSS/Glonass GPS dongles - and a bluetooth option for wireless GPS units.
Regards,
David
It would be interesting to know from the tech guys if there is a GPS driver library loaded onto the RPi, so other dongles can be used or whether they just loaded the u-blox-specific driver. I have established that the RPi will work with a FlightAware dedicated 1090MHz SDR dongle, so maybe we have the library for GPS dongles too.
I also need to test if the orientation of the supplied dongle affects reception. The u-blox patch antenna is on the black-printed side (uppermost when plugged into the RPi) of the unit and I know that my XGPS160 definitely does not like trying to 'see' through the PCB and battery. It might be worth mentioning this to those users who remotely mount the GPS dongle.
Part of my 'wishlist' would be support for dual GNSS/Glonass GPS dongles - and a bluetooth option for wireless GPS units.
Regards,
David
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General Discussion / Re: use GPS of Android Tablet?
« on: December 14, 2016, 10:59:29 am »
Off the back of this question, is it true that the u-blox GPS can only receive either GNSS or Glonass but not both simultaneously? I ask as that's what the documentation for the chip suggests and it would be nice to have both - presumably the Rpi is only interested in an NMEA data stream, so it would be a matter of the correct driver.
I'd quite like to use my (self-powered) Dual GPS160 over bluetooth, but I suspect that, with the myriad different GPS units out there, support might turn into a nightmare!
I'd quite like to use my (self-powered) Dual GPS160 over bluetooth, but I suspect that, with the myriad different GPS units out there, support might turn into a nightmare!
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Technical Support / GPS reception - GNSS only?
« on: December 14, 2016, 10:44:35 am »
Just been reading around the VK172 u-blox GPS specification. It would appear that the '172 only seems capable of receiving either GNSS (the American GPS constellation) or the Russian Glonass system, but not both simultaneously.
I wonder if anybody can confirm that the either/or situation is true and whether anyone has experimented with 'dual' GPS dongles. I have a GPS160 unit which supports GNSS and Glonass simultaneously, but only over a bluetooth connection. I'm assuming that PA is only interested in an NMEA stream on its USB port so any dual system GPS should work provided you have the driver and the dongle isn't too power hungry.
Has anyone experimented along these lines?
I wonder if anybody can confirm that the either/or situation is true and whether anyone has experimented with 'dual' GPS dongles. I have a GPS160 unit which supports GNSS and Glonass simultaneously, but only over a bluetooth connection. I'm assuming that PA is only interested in an NMEA stream on its USB port so any dual system GPS should work provided you have the driver and the dongle isn't too power hungry.
Has anyone experimented along these lines?
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