This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
Next revision Both sides next revision
ntpgps [2016/02/26 10:02]
ntpgps [2016/02/26 10:19]
Line 83: Line 83:
 mintc=3, offset=0.492, frequency=22.723, sys_jitter=0.044, mintc=3, offset=0.492, frequency=22.723, sys_jitter=0.044,
 clk_jitter=0.000, clk_wander=0.145</code> clk_jitter=0.000, clk_wander=0.145</code>
 +====== To D0 & Thoughts ======
 +Right now my offset and jitter can be improved. This can be done by:
 +  * Disable all but GPGGA
 +  * Push pulse width to 200ms
 +  * Some people don't like, and have trouble with, the 18x LVC:
 +    * http://support.ntp.org/bin/view/Support/ConfiguringGarminRefclocks
 +  * Similar to above:
 +    * http://support.ntp.org/bin/view/Support/ConfiguringNMEARefclocks
 +    * I think it's worth noting that my jitter is WAY lower than being reported there. One guy is setting 5-10ms jitter while I am seeing <0.024ms jitter. Either that guy has a bad unit and is being a negative nancy, or firmware updates have made them notably better.
 +  * Get serial pass-through working on the TS140. This will take some tinkering but should be doable. Latency is my only concern.
ntpgps.txt ยท Last modified: 2020/02/21 12:04 (external edit)
Driven by DokuWiki Recent changes RSS feed Valid CSS Valid XHTML 1.0