How to Know How Many Sattelites You Get Drone

Seedler

Hullo,

I'm withal wondering if there is an outcome with my Phantom 1.1.1's gps. I know the phantom needs six or vii (preferably vii) satellites to fly in gps. Any less than vi and information technology drifts equally if it is in atti way. Why is this? I have found out that apparently yous only need 4 gps satellites for a gps module to accurately set up its location. If the phantom could fly on 4 satellites this would be great.

This site http://www.calsky.com/?GPS= allows you to see how many satellites should be visible from a location at dissimilar times. I did a test when it was predicting 11 satellites. The phantom only seen between vii and 8 with a clear horizon in all directions. I then used my motorcar gps from the exact aforementioned location, it seen all 11. If they are there why is the phantom non seeing them?

Some other issue I noticed is loosing satellites when irresolute direction. I could have 8 on the ground, climb to a 10 metre hover and driblet to 5 or half dozen for a few seconds. If I permit information technology sit it volition lock on again, just drib a few when I yaw to head off on a flight.

I have checked to brand certain the gps plug is secure.

How many do the remainder of you get? How tin can I amend my reception? Would a bigger patch antenna work? Would shielding work?

The reason I'1000 asking is because I want to get the basis station, merely at the minute I wouldn't exist confident letting information technology caput of on its ain. Again the all-time number of satellites I have ever got was 8. Host times I wing in atti because I don't get a total lock.

Delight let some of y'all have some advice.

Damien.

P.South. I have never crashed my bird.

ElGuano

It depends on a lot of things, including where y'all are, and every bit you know, time of twenty-four hour period and year. Where I am, I get between nine and eleven satellites regularly, pretty sure I get i fewer or more on occasion, only I honestly haven't paid much attention other than making sure it's "seven or more." The just fashion you can tell for sure if your Phantom is getting fewer than normal is to be flying 2 Phantoms side by side and comparison the satellite counts betwixt them.

There are some parks I fly at with tall trees that make it difficult to get more than 5 satellites on the ground.

ianwood

Information technology depends on the sensitivity of the GPS receiver, atmospheric conditions and how many satellites are available LOS at that time. The more than satellites you can lock in, the higher the precision of the fix simply because there is more timing data to judge a position from. In Southern California, I will typically start out with ix satellites and afterwards a minute of flight at 50 to 100ft, I'll accept up to fourteen.

ericdes

The fluctuation of satelitte signal has prompted many to advise this may be a reason for loss of control of the phantom.

Become that ATTI switch working and get to know how to fly it!

Seedler

ianwood, wow 14 satellites at 100ft, that'due south amazing. My satellite count doesn't seem to change no thing what altitude I'm at.

ericdes, I can fly the phantom pretty well in atti. The reason I was asking about gps is I want to use the ipad basis station, so would need a good gps lock.

Don't know anyone else with a phantom for comparison, but to me 7 or 8 seems low.

Are there any flyers in Northern Ireland, or United kingdom of great britain and northern ireland? What'due south your all-time satellite counts?

Thanks,

Damien.

ianwood

Seedler said:

ianwood, wow 14 satellites at 100ft, that'due south astonishing. My satellite count doesn't seem to modify no matter what distance I'm at.

ericdes, I tin fly the phantom pretty well in atti. The reason I was request about gps is I want to utilise the ipad ground station, so would demand a good gps lock.

Don't know anyone else with a phantom for comparison, but to me 7 or viii seems low.

Are at that place whatever flyers in Northern Ireland, or Uk? What'southward your all-time satellite counts?

You should not, at least in theory, see any variation of satellite availability based on region with the exception of the poles. Satellites are every bit distributed to provide as compatible coverage as possible. Below the poles under normal conditions, you should exist able to become a minimum of 6 SVs and most often it should exist 9 or 10. Anything less you lot can aspect to basis based obstruction, RF racket or atmospheric conditions.

GPS performance including the number of locked satellites has much to do with the receiver'due south capabilities, the amount of sky visible downwards to the horizon, other RF signals and atmospheric conditions. Clouds, rain, ionic charging, etc. will all impact signal force and timing.

The all-time matter to exercise is wait. Depending on the last identify and time you lot used it, the receiver needs to update its tracking data in guild to locate each satellite and make useful calculations from them.

Seedler

How that definitely makes me think at that place is a trouble. I alive in the land with clear views of the horizon in all directions, too a few distant trees. I ordinarily wait for a infinitesimal earlier launch subsequently I become vii satellites cos I read it tin take thirty seconds for the gps satellites to transmit their data or something. Even after that I nevertheless loose satellites when I take off.

I would love the confidence to go flying and not have to worry nigh this. The only time I get all green flashes is around 12 noon. a few hours either side of that and I get ane ruddy flash at best.

Don't know what to do side by side. Would a bigger antenna help, or does anyone think there is something wrong with my gps module?

Thank you,

Damien.

Cr8tive_leo

seven indoors, 9-eleven outdoors.

EMCSQUAR

Seedler said:

How that definitely makes me think there is a problem. I alive in the country with clear views of the horizon in all directions, besides a few afar copse. I usually await for a infinitesimal before launch after I become 7 satellites cos I read it can have thirty seconds for the gps satellites to transmit their data or something. Even after that I still loose satellites when I take off.

I would dearest the conviction to get flying and non have to worry virtually this. The only time I become all green flashes is around 12 noon. a few hours either side of that and I become i red wink at best.

Don't know what to do adjacent. Would a bigger antenna assistance, or does anyone think there is something wrong with my gps module?

Thanks,

Damien.

Before investing into annihilation, get someone else w/Phantom out in that location & compare. (if possible) and see if information technology's your GPS or the location. Besides how are you measuring # of sats? Are you using IOSD mini?

ianwood

EMCSQUAR said:

Earlier investing into annihilation, get someone else w/Phantom out at that place & compare. (if possible) and see if information technology's your GPS or the location. Also how are you measuring # of sats? Are you using IOSD mini?

Or only use your telephone. If you have an Android telephone that is. This is very useful for many GPS related functions: https://play.google.com/shop/apps/deta ... gpsstatus2. If y'all accept an iPhone, well, you can curse Apple for not seeing a need to let you accept admission to GPS technical data on your phone.

Seedler

These numbers are making me jealous

EMCSQUAR I'1000 using the iosd mini. I don't call back its interference because my car satnav tin can lock onto a lot more, and then I would expect local interference would consequence it likewise

tupes

I unremarkably lock 12 fifty-fifty before I take off and ordinarily become 1 or two more than while in the air.

EMCSQUAR

Seedler said:

These numbers are making me jealous

EMCSQUAR I'm using the iosd mini. I don't recollect its interference because my car satnav tin can lock onto a lot more than, and so I would expect local interference would effect information technology besides

You might want to pop the hat and check connections on GPS puck and also make sure sheilding is tight. I had cable from GPS to Naza come loose subsequently a crash. That would exist my next things to bank check.

dataway

I usually get 12 as well on a routine ground.

wkf94025

ianwood said:

EMCSQUAR said:

Before investing into anything, become someone else due west/Phantom out in that location & compare. (if possible) and see if it's your GPS or the location. Too how are y'all measuring # of sats? Are you using IOSD mini?

Or just use your phone. If yous have an Android telephone that is. This is very useful for many GPS related functions: https://play.google.com/store/apps/deta ... gpsstatus2. If you take an iPhone, well, you tin expletive Apple for non seeing a demand to let you have admission to GPS technical information on your phone.

+one
Mountain View thumps Cupertino again!

Seedler

EMCSQUAR I think your rite, I might check the ceramic antenna also, in instance there are any cracks.

Hope its something simple.

Do I need to be careful of static when working with gps module?

Thanks,

Damien.

The Editor

Seedler said:

EMCSQUAR I recollect your rite, I might cheque the ceramic antenna as well, in example in that location are any cracks.

Promise its something unproblematic.

Do I need to be careful of static when working with gps module?

Thanks,

Damien.

Endeavor this ---> http://satpredictor.navcomtech.com/

It should give you an indication on how many sats you can expect to see.

EMCSQUAR

Seedler said:

EMCSQUAR I think your rite, I might check the ceramic antenna too, in instance in that location are whatsoever cracks.

Hope its something uncomplicated.

Practise I need to exist conscientious of static when working with gps module?

Thanks,

Damien.

If anything handle GPS & compass cablevision with care, those ends are pretty pocket-size and GPS end is just 4 soldered connections.

nwillitts

Seedler said:

These numbers are making me jealous

EMCSQUAR I'thousand using the iosd mini. I don't think its interference because my automobile satnav tin lock onto a lot more, and then I would expect local interference would upshot it also

i take p one.ane.1 with iosd mini and i consistently get xi sats.

How to Know How Many Sattelites You Get Drone

ElGuano

ianwood

Taco Wrangler

ericdes

ianwood

Taco Wrangler

thongbong

ianwood

Taco Wrangler

The Editor

nwillitts

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