DISH ARRAYI

[Rchawks]

Would you be at all concerned about flying near such a area because of interference?

 

[mavic3usa]

Nope.

 

[LoudThunder]

They look like they are mostly receivers, not transmitters. And if so, they would not cause you any interference… And even transmitters are not on your frequency… Is that a television station site?

 

[Rchawks]

Cable company.

 

[Rchawks]

Good to know, thanks

 

[Cafguy]

No problem flying Plus if you have a techy buddy, take them with you. Your buddy can probably hook you up with some free cable to watch while your batteries charge.

 

[LoudThunder]

Cable company.

Looks like the Optimum Cable site on North Woodbine. If so, then those dishes are mostly receivers for the 400 plus channels and Internet they provide… Of course, they might complain that the telemetry that your drone sends out (if flown just over the dish) might interfere with their reception… But you should have no other trouble…

Below is the Google Map, it's a bit old, it does not show the TV transmitter just north of this location…



This is the Airspace Map from my copy of the DroneUp App. The Red Arrow shows the Optimum Cable location, so if you are flying there, it's all Class G Airspace and no FAA Authorizations are needed…



Good Luck and Fly Safe…

 

[Droning on and on...]

They look like they are mostly receivers, not transmitters. And if so, they would not cause you any interference… And even transmitters are not on your frequency… Is that a television station site?

Yeah, those are all relievers. They're all pointed at the sky; transmitting to satellites require much larger dishes to narrow the aperture of the signal.

 

[Rchawks]

Yep, that nails it. We have friend that just moved in the building shown in your map on the edge. I've always wanted to fly from there, just haven't done it yet.

 

[LoudThunder]

Yep, that nails it.

This is the TV Tower that does not show up on the Google Street Map, It was put in after the Satallite view was made… You have to go down to Street View to see it. It does not look like there are any cables that are attached to it. If you fly an Oval Video around it near the top, pointing the camera down at about 30 degree angle, it will make an interesting video…



But again, make sure that are no cables that you might "wander" into…



Fly Safe…

 

[Rchawks]

Yep that's my POI, lol. I plan to take pics from a distance is all. Way to much activity and traffic to fly any auto missions for me.

 

[Droning on and on...]

This is the TV Tower that does not show up on the Google Street Map, It was put in after the Satallite view was made… You have to go down to Street View to see it. It does not look like there are any cables that are attached to it. If you fly an Oval Video around it near the top, pointing the camera down at about 30 degree angle, it will make an interesting video…

View attachment 165323

But again, make sure that are no cables that you might "wander" into…



Fly Safe…

THAT might interfere with your RC connection.

 

[LoudThunder]

THAT might interfere with your RC connection.

You should not have a problem. The DJI Drones communicate on 2.4 GHz and 5.8 GHz bands.

Television Stations in the USA broadcast on frequencies from about 54 to 806 MHz in the very high frequency (VHF) band, Other Networks listed below share this range of frequencies…

FM Radio broadcasts on frequencies from about 88 to 106 MHz

Aircraft broadcasts on frequencies from about 118 to 135 MHz

Ham Radio broadcasts on frequencies from about 144 to 148 MHz

Mobile or Marine broadcasts on frequencies from about 150 to 173 MHz

Cellular Telephone broadcasts on frequencies from about 806 to 902 MHz

Mobile or Marine broadcasts on frequencies from about 150 to 173 MHz

Mobile or Marine broadcasts on frequencies from about 150 to 173 MHz

Aliens from outer space broadcasts on frequencies from about 10 to 100 THz (Terahertz)

Star Fleet broadcasts on "sub-space B three nine". (Sub-Space -- 183k FTL*)

*183k FTL is 183,000 times Faster Than Light-Speed (FTL)

So, as Spock might say if he flew drones, "Live Long and Fly Safe…"

 

[Rchawks]

Gtk.

 

[Droning on and on...]

100% correct regarding frequencies, @LoudThunder

Also must consider transmit power, and how leakage and other issues in the electronics in the drone might be affected.

A 50kW transmitter on TV broadcast frequencies can create enough noise in the receiver amp section to overwhelm the comparatively weak signal from your RC at the drone's location.

This is why DJI recommends staying away from commercial broadcast towers. A high power signal at any frequency (typically used, not talking about Gamma Rays or something) can cause interference to electronics. How much can be tolerated is a matter of design and shielding.

Every receiver can be jammed by strong enough EM radiation at any frequency. Every trace on a PCB is an antenna. Enough RF power will result in voltages on those traces that gets rectified by the active circuitry, and interferes with the intended signals in the circuitry.