Airlink E190 back in JNB after 4:06 hr. 3686 km. non-stop from HLE. At HLE they did a lot of approaches in windy conditions over two days with two Airlink crews and an Embraer instructor pilot. They got a good taste of the wind shear.
A Delta 777 ATL-JNB passes near by and a Middle Eastern flight to South America and that's about it.
The airport is 1000' AGL and most inhabitants live at 1000 AGL and above if it is privately operated. Inbound aircraft even from Brazil to the west report VHF Tower contact over 200 nm. so data bursts can probably do a little atmospheric fringing. Combined VHF range of 1000' and 37000' is 273 Nm. No other radio signals down there.
FR24 says they have three ADS B receivers on St. Helena.
Last edited by lolder; 22nd Aug 2017 at 23:04.