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GPS Satellite Status P3P vs P4
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Morph1
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Geebax
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The signal from the GPS satellites is very small, it requires a precision antenna system to receive them properly, so it is not surprising that it does not work inside your house. It only takes a slightly different position and you may come up with a different count. Try doing the test outside in the open.


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Morph1
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Morph1 Posted at 2016-4-10 08:42
Geebax , I had them reversed on the table.... also as soon as P3 starts I get 8 satellites where P4 ...

Like I said, try the same test outside in the open and see what you get. Normally it is not possible to see any GPS satellites inside a house. There may be slight differences in the reception systems, or perhaps the P4 is not set to receive GLONASS satellites. Is there a set-up for that in the menus?
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labroides
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Morph1 Posted at 2016-4-10 08:58
Geebax thanks for the reply, not sure about an additional satellite setup, what I see is that both ...

"so either one has a stronger signal or one is faulty"

Or ... one has a more sensitive receiver/antenna than the other.
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Geebax
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Morph1 Posted at 2016-4-10 08:58
Geebax thanks for the reply, not sure about an additional satellite setup, what I see is that both ...

'Looking forward to DJI techs reply...'

Don't hold your breath for that
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Morph1
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Drgiggles5000
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Morph1 Posted at 2016-4-10 10:51
Jeez , you know what , I thought the more improved Phantom will have perhaps better or at least th ...

The Phantom  4 is garbage.
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Geebax
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Drgiggles5000@g Posted at 2016-4-10 13:10
The Phantom  4 is garbage.

Yep, that comes from someone eminently qualified to pass judgement. Tool.
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Drgiggles5000
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Geebax Posted at 2016-4-10 13:20
Yep, that comes from someone eminently qualified to pass judgement. Tool.

How would you know if I am qualified or not? That was quite the over reaching statement. And I also feel that you calling me names is very uncalled for. I have used the p4. Have you?  It has many nice gimmicks, that is about it.  Perhaps you have not really read about all of the issues that the p4 is experiencing? Many users are experiencing things such far less range than the p3. As stated here, weaker satellite signals. Loss of video signal. Amongst other problems. So in what way is it better, if it doesnt work properly? But costs more. Please explain, rather than resort  to childish name calling.
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GQ.
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P4 have 2 GPS. That is why it takes more time for the system to link and show up the 2 results in the same data.
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R&L Aerial
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I own p4 no issues with gps.
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Morph1
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Michael M
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GQ. Posted at 2016-4-10 10:21
P4 have 2 GPS. That is why it takes more time for the system to link and show up the 2 results in th ...

so does the p3...
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Cale262
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Drgiggles5000@g Posted at 2016-4-10 11:10
The Phantom  4 is garbage.

Thank you for your educated response...

My P4 gets the same range as my P3P's consistently but the P4 gets better speed and flying time, this has been proven time after time regardless of the naysayers.
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SajidShah
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P4 firmware have many bugs
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projeffrey11
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I think it's only fair to give the P4 a chance to catch up because anyone who buys top of the line technology at launch all knows bugs for days, I mean come on p3 has been out a long time already but I will say this It kinda sucks to that the P3 is better in some aspects then the newest  generation of phantom. I think with time the P4 we'll be the bird it's suppose to be the true successor to the Phantom3.
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Cale262
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I had nothing better to do right now as it is raining out so I set up 3 of my DJI birds (one P4 and two P3P's) to test this for you... All three a running the most current software (RC, AC, tablets).  I was running three different devices to run the DJI go app but all three were running the same OS (Air2/mini4/6+) and all three had cellular. All three were setup side by side on a table indoors, the room has large windows, 13' ceilings and no issue capturing satellites from this position. All three birds are set up the same, calibrated etc. I left them sit for ~5-10 minutes and all three fluctuated back and forth holding a consistent 9-11 satellites alternating back and forth, while flying outside I usually see 16-18 on both the P4 and 3's...Take that for what it's worth as YMMV.








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Drgiggles5000
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Cale262 Posted at 2016-4-11 03:41
Thank you for your educated response...

My P4 gets the same range as my P3P's consistentl ...

I'm not naysaying. I bought a Phantom 4 my P3 Pro will fly 3 miles easily flying the same exact flight path my p4 loses video at about 1.2 miles. I also have issues with the phantom for not picking up the same amount of satellites as my Phantom 3. So I am not the only one this is a very real problem that people are actually having issues with.
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Cale262
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Drgiggles5000@g Posted at 2016-4-11 05:01
I'm not naysaying. I bought a Phantom 4 my P3 Pro will fly 3 miles easily flying the same exact fl ...

I would contest that the real problem is that people are not taking the time and setting up their P4 correctly... Out of the box when setup properly the P4 has no issue with keeping up to the 3. People are so quick to jump on in a dog pile fasion when someone gripes about a new/improved product instead of asking "Why"... Your post above is a prime example.
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Cale262 Posted at 2016-4-11 05:37
I would contest that the real problem is that people are not taking the time and setting up their P ...

You clearly have no clue what you are talking about. I own a p4, as well as a p3pro, and. P2, and a p1. I have been flying RC for years. Especially DJI products. I just explained to you that I am experiencing a very real world issue, as are others. But, you are very quick to say that basically, I dont know what I am doing. Which is quite the contrary. I am more than aware of how to setup a Phantom. Yet I am still experiencing signal loss. But thanks for your invaluable insight. You have no idea what you are talking about. Just because your unit works fine, does not mean, that others have no issues. Go suck an egg.
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dacofty
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Morph1 Posted at 2016-4-10 14:27
Do you currently have both birds ??
if you do please put them side by side turned them on and watch ...

I hope you really dont think you will get a valid explanation other than your doing it wrong or its your fault.  That is the typical fanboy reply you will receive
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Cale262
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Drgiggles5000@g Posted at 2016-4-11 07:26
You clearly have no clue what you are talking about. I own a p4, as well as a p3pro, and. P2, and a ...

An egg you say...I stand corrected and put in my place, you are of course a scholar and a man among men! Obviously as you put it, the P4 is indeed "garbage"...
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Cale262
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Morph1 Posted at 2016-4-11 08:06
hey guys why the GPS inside the house show different fluctuations on both crafts is a misterry to m ...

As I have shown above, you may indeed have a problem as when I compare mine they get the same signal across three different craft. Call DJI...
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Morph1 Posted at 2016-4-11 10:06
hey guys why the GPS inside the house show different fluctuations on both crafts is a misterry to m ...

What are the side-by-side results like outdoors with a proper view of the sky?
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Morph1
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GQ.
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No, P3 only have one GPS.
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parkgt
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An extra 30 seconds of startup time is not mission critical for most.   What is mission critical is maintaining GPS lock.  I would be interesting to see results from those with each on how they handle difficult GPS field conditions.  

Here are two examples that come to mind:

Is there a difference of how they maintain lock under tree canopies?
How do they compare in canyons either city building canyons or natural ones?
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GQ. Posted at 2016-4-11 03:21
P4 have 2 GPS. That is why it takes more time for the system to link and show up the 2 results in th ...

"No, P3 only have one GPS."

1 out of 2 correct.
Yes ... The P3 has only one GPS unit .. just like the P4.
The P4 has 2x IMU and 2x compass but only 1 GPS.
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parkgt Posted at 2016-4-11 22:45
An extra 30 seconds of startup time is not mission critical for most.   What is mission critical is  ...

"How do they compare in canyons either city building canyons or natural ones?"
A canyon blocks out much of the sky and denies a view of whatever satellites are in the hidden parts.
No GPS can do anything about that.
If it can't see the satellites, it can't receive their signal.
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I don't get why Cale262's post is being completly ignored.
He took the time to post his own tests and you still keep mouning about ignoring it.
Morph1, you got a faulty unit, go and call DJI.

Most of the time people forget the P3 had several "builds" that improved over time the GPS aislation (the stupid square thing in the top of the case) and the motors (shell cracks thing), so it was pretty obvious that buying the fresh-from-the-oven P4 wasn't a good idea. DJI makes incredible products, more cost efficient than any alternative on the market, but better yet, they keep improving them, either in firmware or in the making process.
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parkgt
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labroides@yahoo Posted at 2016-4-11 07:56
"How do they compare in canyons either city building canyons or natural ones?"
A canyon blocks out ...

Understood - but is their a difference between them.  
What angle of signal do they accept, how strong a signal gets past filtering etc.
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Michael M
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GQ. Posted at 2016-4-11 05:28
No, P3 only have one GPS.

P4 and p3 both have 1 compass module that can connect to usa and russian satellites. The p4 has 2 imus and 2 compasses, whereas the p3 only has one of each.
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parkgt
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Michael M Posted at 2016-4-11 10:42
P4 and p3 both have 1 compass module that can connect to usa and russian satellites. The p4 has 2  ...

Compass modules do not connect to any satellites!
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Poindexter
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Does the P4 work?  If yes, end thread.
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labroides
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Michael M Posted at 2016-4-12 01:42
P4 and p3 both have 1 compass module that can connect to usa and russian satellites. The p4 has 2  ...

You need to learn the difference between compass and GPS.
They are two completely unrelated systems.
Compass gives direction data, GPS gives position and speed data.
Compass is on the bottom of landing gear while GPS is inside the top of the shell.
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GQ.
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Michael M Posted at 2016-4-11 11:42
P4 and p3 both have 1 compass module that can connect to usa and russian satellites. The p4 has 2  ...

What I am say is P3 have 1 GPS module and 1 IMU. The P4 have 2 GPS modules and 2 IMU.
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