Jason Lin replied to rsaf's discussion Antenna for NS-RAW
"Use GNSS radar check what time at you location has fewer GPS satellites overhead, http://www.taroz.net/GNSS-Radar.html ; Avoid use NS-RAW + RTKLIB at those time will have better chance to get fixed solution, more satellites is better.
We have used $8…"
Sep 24, 2015
Jason Lin replied to sparkmatt's discussion NavSpark-GL giving time 1 second off
"Should be due to +1sec leap second adjustment happened on June 30,2015. Jan 29 2015 firmware default value has old leap second, off by 1 second. May take up to 12.5 minutes to get the new leap second info from signal. If using firmware built by late…"
Sep 19, 2015
Jason Lin replied to Andrew Witte's discussion NavSpark Arduino IDE download??
"Good idea. Thank you, Andrew!"
Sep 14, 2015
Jason Lin replied to Andrew Witte's discussion NavSpark Arduino IDE download??
"Hi Andrew,
1.5.6 r2 is no longer in use, moved to 1.6.5
Please see section 10 of the user's manual on page-13: http://navspark.mybigcommerce.com/content/NavSpark-User-Guide_rev0...."
Sep 13, 2015
Jason Lin replied to Hans Middelbeek's discussion Navspark mini and Board Manager and IDE Error 4
"Make sure baud rate is 115200. If not change to 115200 using GNSS Viewer. Disconnect from terminal or GNSS Viewer to free up COM port. Compile using NavSpark (GPS) and upload. See if it works."
Sep 4, 2015
Jason Lin replied to Michele Bavaro's discussion beidou codes higher than 30
"Default firmware from webstore product page or this test program all store ephemeris to internal Flash, so after recycle power it will have position fix in couple seconds after enough satellites tracked. Not needing to decode ephemeris data from sig…"
Aug 27, 2015
Jason Lin replied to Michele Bavaro's discussion beidou codes higher than 30
"Only Beidou satellite PRN search range is extended, firmware should behave like NavSpark-BD. This 115200 version will avoid potential flying mouse problem cause by 9600: http://navspark.mybigcommerce.com/content/BD_33_34_tst_fw_115200.zip"
Aug 27, 2015
Jason Lin replied to Michele Bavaro's discussion beidou codes higher than 30
"Hi Edwin, Beidou PRN33 & PRN34 signal contain no data thus not useful for position fix, only interesting to see new test satellite can be acquired and tracked. So no plan to update library yet to maintain best possible Beidou weak signal performance…"
Aug 21, 2015
Jason Lin replied to Michele Bavaro's discussion beidou codes higher than 30
"After modify code, we can track PRN34 (BEIDOU-3 M1) in below figure, PRN33 (BEIDOU-3 M2) is too low to track at the time. PRN34 signal has no ephemeris data, so cannot use for position fix.
Here is NavSpark-BD test firmware that works with Beidou PR…"
Aug 21, 2015
Jason Lin replied to Anatoly's discussion Problem with sparc-elf-mkprom
"With the new I2C library in the Board Manager support package, fix in mkprom for Board Manager support, and below I2C porting guideline, this issue should be resolved.
http://www.navspark.com.tw/blog/window-linux-board-manager-support
http://www.nav…"
Aug 20, 2015
Jason Lin replied to Gregg Mallory's discussion NavSpark PROGMEM support
"pgmspace.h is specific to AVR, it's not supported by NavSpark.
You can simply declare a global constant double type like below, and it'll be stored in the code area; replace {0} with your list of double constants.
const double tmp[10000] = {0};"
Aug 11, 2015
Jason Lin replied to Nathan M's discussion Possible to modify NS-RAW for 5V antenna bias?
"Proper way to do it is adding DC block before NS-RAW RF input, adding Bias Tee between DC Block and your antenna to provide needed DC power:
http://www.minicircuits.com/pdfs/BLK-18+.pdf
http://www.minicircuits.com/pdfs/ZX85-12G+.pdf
If you are able…"
Aug 2, 2015
Jason Lin posted a blog post
bit.ly/1OG0uDq
Jul 26, 2015
Jason Lin commented on Jason Lin's blog post Window & Linux Board Manager Support
"Hi James, Thank you for pointing this out. We fixed and uploaded with 32bit version. Wishing you a great weekend ! "
Jul 24, 2015
Jason Lin commented on Jason Lin's blog post Window & Linux Board Manager Support
"Hi James, We have  Board Manager working on Ubuntu 14.04LTS. Might it be possible for you to update to newer version?"
Jul 20, 2015
Jason Lin commented on Jason Lin's blog post Window & Linux Board Manager Support
"Let me have our engineer look into this and get back to you next Monday. "
Jul 18, 2015
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