[ARC5] A-10 Radios

Peter Gottlieb kb2vtl at gmail.com
Fri Jul 13 23:23:38 EDT 2018


Hundreds of megawatts?


On 7/13/2018 5:07 PM, Brooke Clarke wrote:
> Hi:
>
> The problem is that all these sat nav systems work in what used to be called 
> L-band (1 - 2 GHz) and it's pretty easy to make a receiver deaf by noise 
> jamming with low power. and an antenna that's a few inches in size.  The mil 
> receivers know they are being jammed and roughly the bearing where it's coming 
> from, but they still are jammed.
>
> LORAN-C, operating at 100 kHz and with the eLORAN updates would be close to 
> GPS in capability and is virtually jam proof.  The transmitters are running 
> hundreds of megawatts into a 1000+ foot antenna.  Hard to generate a signal at 
> the receiver that can compete with that received power.
>



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