This monster which is pumping out banal shite across UK shores at
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Personally no but I will follow this thread with great interestView attachment 82101
This monster which is pumping out banal shite across UK shores at 909MHz along with being close to an airport has curbed my enthusiasm for flying round here, it's a mile away and far from the 2.4GHz used for my expensive toy. Would you even bother trying? at that power there could be some nasty harmonics. I am a keen SDR-play user with a amplified magnetic induction loop antenna for short wave listening and this pisses all over it up to about 5MHz.
Fundamental yes, but third harmonic no.There’s a few of those near me. I fly and have never had an issue. I’ve flown by all kinds of masts without incident.
LW is so far from the GHz range the controller uses I really wouldn’t worry.
Note I’m an advanced amateur radio licence holder so have a good working knowledge of things radio
73 de M0SDB
Fundamental yes, but third harmonic no.
Although the final stage of the TX on the towers are probably fairly clean, the design of DJI's Chinese front end probably isn't the greatest.
The other thing to always bear in mind is that at 10kw of RF radiating from those masts the UAV's/RC receiver maybe swamped and unable to cope.
The OP said that the tower transmits at 909mhz. That’s why I said third harmonic.It’s not going to be 3rd harmonic though. More like the 27000th harmonic (assuming a transmit frequency of 198khz) by which time the power, even with a transmitter power of 10KW will be negligible given power halves with each harmonic.
I’d be very worried about the design of the DJI front end if frequencies in the KHz swamped it regardless of transmit power - of that were the case it’d knock out TV’s across the neighbourhood, satellite transmissions and mobile phones.
Honestly it’s nothing to worry about. I’d be surprised if you even got an interference warning.
The OP said that the tower transmits at 909mhz. That’s why I said third harmonic.
I’m confused by your comment regarding the front end of the DJI equipment. Swamping the receiver would have no consequence in being able to ‘knock out TVs’ etc.
I’m not talking about the TX side of the DJI equipment.
Not in you original post you don’t.I think I should have said khz, see for yourself, sorry for confusion but you can see what it does to my SDR radio at gains where I can receive and decode FT8, I digress.......View attachment 82118
Yes I did, I'm a **** sorryNot in you original post you don’t.
You specifically say 909Mhz
No worries........ Now you see why I was confused.?Yes I did, I'm a **** sorry
Personally, I'm with you on this one and would err on the side of caution, as the transmission power MAY induce electrical currents in the Drone - and also MAY swamp the receiver which would make your controller ineffective.
Not in you original post you don’t.
You specifically say 909Mhz
As a test I’m going to fly round the mighty Emley Moor TV mast in the next couple of weeks. Still pretty certain it’ll be fine and that’s much closer frequency-wise and a lot more than 10KW
A 909MHz Tx antenna would be really quite small. Great big long wire like that is MW at best.
And take your green headgear off and replace it with tin foil (just to be safe).Particularly nasty one here.....Think I need to move...
View attachment 82127
I'm not that bad honestly just want don't want to lose my Mavic...And take your green headgear off and replace it with tin foil (just to be safe).