Jan Ceuleers wrote:
Interesting Light Reading article on the degree to which infrastructure
(in casu wireless networks) is dependent on GPS timing signals, how
little is needed to jam GPS (intentionally or otherwise), and what the
impact of such jamming would be.
It also talks about how PTP
unruh un...@invalid.ca wrote:
On 2013-12-12, Rob nom...@example.com wrote:
Jan Ceuleers jan.ceule...@computer.org wrote:
Interesting Light Reading article on the degree to which infrastructure
(in casu wireless networks) is dependent on GPS timing signals, how
little is needed to jam GPS
John Hasler wrote:
In any case designers of things like cell towers should no more assume
that GPS is always just there than they should assume that electric
power is always just there.
This is a _basic_ shortcoming in CDMA as designed and in use.
( think of it as the NTSC of mobile phone
I wrote:
In any case designers of things like cell towers should no more assume
that GPS is always just there than they should assume that electric
power is always just there.
Uwe writes:
This is a _basic_ shortcoming in CDMA as designed and in use.
( think of it as the NTSC of mobile phone
John Hasler wrote:
I wrote:
In any case designers of things like cell towers should no more assume
that GPS is always just there than they should assume that electric
power is always just there.
Uwe writes:
This is a _basic_ shortcoming in CDMA as designed and in use.
( think of it as the
Interesting Light Reading article on the degree to which infrastructure
(in casu wireless networks) is dependent on GPS timing signals, how
little is needed to jam GPS (intentionally or otherwise), and what the
impact of such jamming would be.
It also talks about how PTP might or might not
There are many things that could be done to mitigate the GPS jamming and
interference problem. Unfortunately, few if any are being done by
anyone outside the military. These include:
1) Better front-end selectivity
2) Better front-end dynamic range
3) Directional antennas for fixed sites such
On 12/12/13 13:57, John Hasler wrote:
1) Better front-end selectivity
2) Better front-end dynamic range
I don't really see how these help against all but the crudest jammers,
which transmit pure CW carriers or are off frequency.
3) Directional antennas for fixed sites such as cell towers
I wrote:
1) Better front-end selectivity
2) Better front-end dynamic range
David Woolley writes:
I don't really see how these help against all but the crudest jammers,
which transmit pure CW carriers or are off frequency.
Better dynamic range means that the jammer must be closer or more
In article 87vbyugh88@thumper.dhh.gt.org,
John Hasler jhas...@newsguy.com wrote:
In any case designers of things like cell towers should no more assume
that GPS is always just there than they should assume that electric
power is always just there.
So long as they're still running IS-2000
Jan Ceuleers jan.ceule...@computer.org wrote:
Interesting Light Reading article on the degree to which infrastructure
(in casu wireless networks) is dependent on GPS timing signals, how
little is needed to jam GPS (intentionally or otherwise), and what the
impact of such jamming would be.
It
On 2013-12-12, Rob nom...@example.com wrote:
Jan Ceuleers jan.ceule...@computer.org wrote:
Interesting Light Reading article on the degree to which infrastructure
(in casu wireless networks) is dependent on GPS timing signals, how
little is needed to jam GPS (intentionally or otherwise), and
unruh writes:
The article talks about a truck driving by the airport (ie a few km)
jamming the airport. And that was a trucker probably unwilling to
spend more than a 100 dollars on his jamming gear.
And the jammed receivers probably weren't worth much more than that
(though the airport
unruh un...@invalid.ca wrote:
The article talks about a truck driving by the airport (ie a few km)
jamming the airport. And that was a trucker probably unwilling to spend
more than a 100 dollars on his jamming gear.
Is this the incident?
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