[NLRS] Influence of Aurora on GPS and other navigation satellites

[Dr. Gerald N. Johnson]

With satellite navigation systems dependent on propagation time from the 
satellite to the receiver, anything that refracts the path or adds noise 
modulation to the signal (like aurora does at VHF) upsets the position 
precision. I don't know how wide a frequency range is affected but I 
have seen occasional Aurora E on 6 and 2m while the aurora was fairly 
far north, but gave clean signals from 42 degrees north to the south 
like 35 or 38 degrees latitude. Surely those apparently static charged 
clouds supplied by aurora particles could affect higher frequencies 
causing both time delays and refracted propagation. Those researchers 
probably didn't notice Aurora E.

73, Jerry, K0CQ

On 3/20/2017 11:42 AM, Barry Malowanchuk wrote:
>
>
> see https://www.everythingrf.com/News/details/3771-Research-Analyze-Disruption-of-Satellite-Navigation-Systems-due-to-the-Northern-Lights
>
> I guess it wont bother EME stations...except for very northern stations (KL7, etc)
>
> Barry VE4MA/ W7
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