Does it have gps at night? I read somewhere that it doesnt

Yes, of course it has gps at night.  Unless you are in a cave or indoors or somewhere the gps signal  can not reach.

Or when them Russian high flying satalites get into another late night poker and shrimp BrBq.

RedHotPoker

Yes ,ofcourse it has GPS at night ,It can't chage anytime!

Unless ET or some other Alien toasts all the satellites there will be GPS 24 hrs. a day...the number of satellites will vary but GPS is there as long as Satellites are up...For what it is worth, some of my best and longest distant flights have been late at night,,,,

If you need to ask a question like that, maybe a P4 is not a good idea for you right now.  Might want to read up some before jumping.  Start with a less complex drone.

Reminds me that I've seen several flyers thinking they would not have GPS when they went on holiday etc.
Not realising what the G in GPS stands for.  (global)
Or others believing that clouds knocked out their GPS.

labroides@yahoo Posted at 2016-4-16 10:21
Reminds me that I've seen several flyers thinking they would not have GPS when they went on holiday  ...

Maybe some think the G=Gone!
Gone Positioning System Gone......

Hey guys don't need to be mean,   GPS needs to sleep too!   

The object avoidance does not work in low light or darkness, likewise the down-facing camera.  Perhaps you saw a refernce to that.

What will be interesting is that Phantom 4 supports GPS & GLONASS, when the European system Galileo comes online in 2020 will this be incorporated to give millimetre precision using all three systems.
Phantom 8 perhaps

jstjohnz Posted at 2016-4-15 23:31
The object avoidance does not work in low light or darkness, likewise the down-facing camera.  Perha ...

Yes! I confused the gps with the sensor! Sorry haha!

Aardvark Posted at 2016-4-16 11:33
What will be interesting is that Phantom 4 supports GPS & GLONASS, when the European system Galileo  ...

By that time, 2020, there will be Phantom 8 out there which may fly itself. No need for any GPS

This site gives some good full forecasts for weather, sun activity (KP) and GPS Sats.  All you need to do is fill in your location.
www.uavforecast.com

Careful how you answer this seemingly simple question. Southern California is covered by the second advisory now. They seem to be scheduled for night and cover a huge area.

https://www.faasafety.gov/files/ ... Flight_Advisory.pdf
https://www.faasafety.gov/files/ ... Flight_Advisory.pdf

FLIGHT ADVISORY
GPS INTERFERENCE TESTING
NTC 16-03
14-18 April, 2016
Barstow, CA
GPS testing is scheduled as follows and may result in unreliable or unavailable GPS signal.
A. Location: Centered at 352435N 1163500W or the HEC VOR 338 degree radial at 37NM.
B. Dates and times:
14 – 18 APR 16 0430Z – 1330Z
C. Duration: Each event may last the entire requested period.
D. NOTAM INFO: NAV (NTC GPS 16-03) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVAILABLE WITHIN A 359NM RADIUS CENTERED AT 352435N1163500W (HEC 338037) FL400-UNL DECREASING IN AREA WITH A DECREASE IN ALTITUDE DEFINED AS:
331NM RADIUS AT FL250
217NM RADIUS AT 10000FT
196NM RADIUS AT 4000FT AGL
146NM RADIUS AT 50FT AGL
E. Pilots are encouraged to report anomalies only when ATC assistance is required.
The NOTAMs discussed in this advisory may change with little or no notice. Pilots are advised to check NOTAMs frequently for possible changes prior to operations in the area. NOTAMs will be published at least 24 hours in advance of any GPS tests.
Released
11 April, 2016