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weak signal at 200 mertes UK
1569 21 2018-9-4
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Graham Mavic
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Weak signal at 200 mertes in the UK

This has happened to me on three or four occasions. I have deleted the app and reinstalled it I have reset the RC.
Is anybody else having trouble with distance in the United Kingdom?? I am led to believe in the UK they cut the Range down from 7 km to What????

2018-9-4
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Aardvark
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Well in Europe the range under CE regulation has always been, 2.5 mi (4 km), it was never cut down from anything.


Edit:- You could try relinking RC to aircraft, that might help.
2018-9-4
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Alex B.
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Yes, the range differs greatly on whether you are in CE mode or FCC mode.

Fly safe ppl.
Alex.
2018-9-4
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Aurelian (Spark)
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Aardvark Posted at 2018-9-4 07:24
Well in Europe the range under CE regulation has always been, 2.5 mi (4 km), it was never cut down from anything.

In Spain the limit is 500m
2018-9-4
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Aurelian (Spark)
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You use Android or iOS?
2018-9-4
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Aardvark
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From the Mavic Pro specification:-

Operating Frequency
2.4 GHz to 2.483 GHz
Max Transmission Distance
FCC Compliant: 4.3 mi (7 km);
CE Compliant: 2.5 mi (4 km)
SRRC Compliant: 2.5mi (4 km)
MIC Compliant: 2.5 mi (4 km) (Unobstructed, free of interference)

Spanish regulations might not allow you to fly more than 500m, as it is in UK for commercial license holders. But the range of the Mavic Pro is as shown.


The Mavic Air is limited to 500m @ 5.8GHz or 2km at 2.4GHz:-

2.400 - 2.4835 GHz:
FCC: 4000 m
CE: 2000 m
SRRC: 2000 m
MIC: 2000 m

5.725 - 5.850 GHz:
FCC: 4000 m
CE: 500 m
SRRC: 2500 m
2018-9-4
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userb175b7b256
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Aardvark Posted at 2018-9-4 09:49
From the Mavic Pro specification:-

Operating Frequency

In the UK the Air navigation (Amendment) Order 2018 effective from 30th July 2018, states that any drone above a take off mass of 250g should not be flown above 400ft AGL and 500 m horizontally (visual line of sight).
This is the rule for all remote pilots, commercial or not.
Unless there is geo fencing in operation in the area you are flying in, range should not be affected. if you are flying in an HIRTA (high radio transmission area) or the solar index is very high this may affect your transmission as will a mobile network mast. The NATS Drone assist app is really useful, as is Skydemon light, in highlighting such areas.
2018-9-4
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Aardvark
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userb175b7b256 Posted at 2018-9-4 10:57
In the UK the Air navigation (Amendment) Order 2018 effective from 30th July 2018, states that any drone above a take off mass of 250g should not be flown above 400ft AGL and 500 m horizontally (visual line of sight).
This is the rule for all remote pilots, commercial or not.
Unless there is geo fencing in operation in the area you are flying in, range should not be affected. if you are flying in an HIRTA (high radio transmission area) or the solar index is very high this may affect your transmission as will a mobile network mast. The NATS Drone assist app is really useful, as is Skydemon light, in highlighting such areas.

Do you have a link showing the 500m limit, I can only see reference to keeping it in VLOS such that any avoiding action can be taken if required.
2018-9-4
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Aardvark
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userb175b7b256 Posted at 2018-9-4 10:57
In the UK the Air navigation (Amendment) Order 2018 effective from 30th July 2018, states that any drone above a take off mass of 250g should not be flown above 400ft AGL and 500 m horizontally (visual line of sight).
This is the rule for all remote pilots, commercial or not.
Unless there is geo fencing in operation in the area you are flying in, range should not be affected. if you are flying in an HIRTA (high radio transmission area) or the solar index is very high this may affect your transmission as will a mobile network mast. The NATS Drone assist app is really useful, as is Skydemon light, in highlighting such areas.

"NATS Drone assist app is really useful"

Yes it is an excellent programme, I use it all the time for guidance, useful for highlighting low level and local hazards.
2018-9-4
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Aurelian (Spark)
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Aardvark Posted at 2018-9-4 09:49
From the Mavic Pro specification:-

Operating Frequency

It is true! You were talking about the manufacturer's specifications and me about the legislation. Anyway, 200 meters seems to me very little for the Mavic Pro. Now it depends on the area too, if it is urban and there are many interferences ... In the field I have reached 320 meters with the Spark.
2018-9-4
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Aardvark
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userb175b7b256 Posted at 2018-9-4 10:57
In the UK the Air navigation (Amendment) Order 2018 effective from 30th July 2018, states that any drone above a take off mass of 250g should not be flown above 400ft AGL and 500 m horizontally (visual line of sight).
This is the rule for all remote pilots, commercial or not.
Unless there is geo fencing in operation in the area you are flying in, range should not be affected. if you are flying in an HIRTA (high radio transmission area) or the solar index is very high this may affect your transmission as will a mobile network mast. The NATS Drone assist app is really useful, as is Skydemon light, in highlighting such areas.

Air navigation (amendment) order 2018

http://publicapps.caa.co.uk/docs ... mendmentOrder-3.pdf

Extract from section 94:-

"(3) The remote pilot of a small unmanned aircraft must maintain direct, unaided visual contact with the aircraft sufficient to monitor its flight path in relation to other aircraft, persons, vehicles, vessels and structures for the purpose of avoiding collisions"
2018-9-4
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userb175b7b256
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Aardvark Posted at 2018-9-4 11:15
Do you have a link showing the 500m limit, I can only see reference to keeping it in VLOS such that any avoiding action can be taken if required.

caa.co.uk/guidance for flying drones/uk civil aviation authority
2018-9-4
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Aardvark
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userb175b7b256 Posted at 2018-9-4 13:05
caa.co.uk/guidance for flying drones/uk civil aviation authority
[view_image]

I can't see your link, can you post URL ?
2018-9-4
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userb175b7b256
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Aardvark Posted at 2018-9-4 13:13
I can't see your link, can you post URL ?

https://www.caa.co.uk/Blog-Posts/Guidance-for-flying-drones/
2018-9-4
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Aardvark
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userb175b7b256 Posted at 2018-9-4 13:26
https://www.caa.co.uk/Blog-Posts/Guidance-for-flying-drones/

That was posted 17th May 2016, I would suggest it's been superseded by the CAA rules as laid out in the 2018 amendment I've linked to above.

To give you an idea that it is outdated, it states:

"For guidance we put an actual measurable distance on this 'line of sight' - which is set out very clearly in our Drone Code."

There is nothing in the current Drone Code specifying 500m:- https://dronesafe.uk/drone-code/
2018-9-4
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userb175b7b256
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Agreed. It is outdated however this rule does still apply to commercial drone pilots.
It seems a bit bizarre that they are stipulating a maximum height but not distance for the consumer drone pilots only relying the pilot in maintaining visible contact. There are pilots out there that will push their drones to the maximum limit regardless of the drone code.
I put this to the caa this morning and this is the reply from them.

Hi Gary

Primarily the Dronecode is aimed at the consumer rather than commercial user

They will be using a wide variety of size drones so we were conscious that the important message is that you can actually see the drone to be able to have the spatial awareness to keep clear of people / buildings / other airspace users

For consumer users I'd rather they kept their drone in really good line of sight so that they can avoid an air ambulance rather than try to push a small drone out to 500m which they may not be able to judge anyway.

Plus the law is keep the drone in line of sight so we're replicating that

Cheers

Jonathan


2018-9-5
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DJI Wanda
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Hi. We apologize for the inconvenience. For Mavic Pro, if you're in UK, it is under the CE regulation which is only 2.5 mi (4 km).
2018-9-6
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Graham Mavic
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Android Thanks
2018-9-6
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Alex B.
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Flight distance : 21105262 ft

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What’s your device and which app version are you running?
It might be that the device is not capable of running well the latest app and as a result you have short range, it does happen very often.
If that’s the case then you will just need to downgrade your app version and everything will be working.

Fly safe.
Alex
2018-9-6
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shazamin91_DJI
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Just flown my M2Z and signal was aircraft signal was totally lost after 500 meters.

Flying in the UK suburban on ip7+ (although signal is between RC and AC not between phone and AC, dont know why you guys asking about phone)

Am I missing something..?
2018-9-6
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Aardvark
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shazamin91_DJI Posted at 2018-9-6 10:51
Just flown my M2Z and signal was aircraft signal was totally lost after 500 meters.

Flying in the UK suburban on ip7+ (although signal is between RC and AC not between phone and AC, dont know why you guys asking about phone)

I would suggest that perhaps the range in the 5.8 GHz bands has a reduced range not dissimilar to that of the Mavic Air shown in post number 6. And for similar reason, the power output at 5.8 GHz is significantly lower than that in the 2.4 GHz bands. Extract from Specs shown below.

2.400 - 2.483 GHz
FCC: ≤26 dBm
CE: ≤20 dBm
SRRC: ≤20 dBm
MIC: ≤20 dBm

5.725-5.850 GHz
FCC: ≤26 dBm
CE: ≤14 dBm
SRRC: ≤26 dBm

Note that they don't differentiate in range when listed, perhaps DJI could clarify :-

2.400 - 2.483 GHz; 5.725 - 5.850 GHz
FCC: 8000 m
CE: 5000 m
SRRC: 5000 m
MIC: 5000 m
2018-9-6
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Alex B.
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Maybe it’s a mistake in the specs???

Fly safely
Alex
2018-9-6
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