[LINK] Ffx: 'Farmers ‘crippled’ ... as GPS-guided tractors grind to a halt'

[Tom Worthington]

On 22/4/23 15:54, Roger Clarke wrote:

> ... So you're suggesting that the chairman of the NFF 
> farming systems committee was having a lend of a city reporter ...

An increase in cost of 4% is significant, but that is far from being 
unable to plant a crop. If this function is critical, the farmer could 
purchase a navigation system which does not depend on the US GPS system.

Other satellite navigation networks exist, as well as ground based 
radio, & laser systems. Low cost LoRa digital radio networks have been 
tested for navigation. Their 100m accuracy (Fargas & Petersen,2017) 
should improve at short range on a farm. Newcastle company CORE 
Electronics sells LoRa equipment. 
https://core-electronics.com.au/wireless/lora/gateways.html

Reference

Fargas, B. C., & Petersen, M. N. (2017, June). GPS-free geolocation 
using LoRa in low-power WANs. In 2017 global internet of things summit 
(Giots) (pp. 1-6). IEEE. 
https://backend.orbit.dtu.dk/ws/portalfiles/portal/130478296/paper_final_2.pdf


-- 
Tom Worthington, http://www.tomw.net.au