[time-nuts] Story in the Economist about GPS jamming

Bob Camp lists at rtty.us
Tue Jul 30 19:49:38 EDT 2013


Hi

A sector antenna autocorrelateor  should be a pretty useful gizmo for tracking GPS jammers. You have most of the gear already in a cell site. Software patch and away you go. Of course you would need pretty good timing, but that's not impossible ….

Bob


On Jul 30, 2013, at 7:27 PM, Chuck Forsberg WA7KGX <caf at omen.com> wrote:

> Don't junk your ADF just yet.
> 
> On 07/30/2013 11:46 AM, Scott McGrath wrote:
>> It doesn't    It simply increases the risk that GPS will be made unavailable due to events outside the operators control    Hence system risk profile is high
>> 
>> Was not so high when LORAN was available as aviation, maritime and timing applications could gracefully degrade to LORAN in the event GPS was unavailable
>> 
>> Now if GPS availability is denied we are back to maps bowdoins sextants and chronometers for navigation except for the vanishingly small number of ships and planes equipped with INS
>> 
>> Scott
>> 
>> 
>> Sent from my iPhone
>> 
>> On Jul 30, 2013, at 1:28 PM, "Lester Veenstra" <lester at veenstras.com> wrote:
>> 
>>> Yes. LOS jamming of the civilian code is easy; However whey do you think the
>>> use of LEO aids this?
>>> 
>>>>> Any competent engineer could have told the powers that be that a
>>>>> satellite system based in LEO has a relatively high risk profile from
>>>>> the Universe/hostile activity/spoofing and jamming
>>> 
>>> Lester B Veenstra  MØYCM K1YCM W8YCM
>>> lester at veenstras.com
>>> 
>>> US Postal Address:
>>> 5 Shrine Club Drive
>>> HC84 Box 89C
>>> Keyser WV 26726
>>> GPS: 39.33675 N  78.9823527 W (Google)
>>> GPS: 39.33682 N  78.9023741 W (GPSDO)
>>> 
>>> 
>>> Telephones:
>>> Home:                     +1-304-289-6057
>>> US cell                    +1-304-790-9192
>>> UK cell                    +44-(0)7849-248-749
>>> Guam Cell:              +1-671-929-8141
>>> Jamaica:                 +1-876-456-8898
>>>  This e-mail and any documents attached hereto contain confidential or
>>> privileged information. The information is intended to be for use only by
>>> the individual or entity to whom they are addressed. If you are not the
>>> intended recipient or the person responsible for delivering the e-mail to
>>> the intended recipient, be aware that any disclosure, copying, distribution
>>> or use of the contents of this e-mail or any documents attached hereto is
>>> prohibited.
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> time-nuts mailing list -- time-nuts at febo.com
>>> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>>> and follow the instructions there.
>> _______________________________________________
>> time-nuts mailing list -- time-nuts at febo.com
>> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> and follow the instructions there.
>> 
> 
> -- 
>     Chuck Forsberg WA7KGX   caf at omen.com   www.omen.com
> Developer of Industrial ZMODEM(Tm) for Embedded Applications
>  Omen Technology Inc      "The High Reliability Software"
> 10255 NW Old Cornelius Pass Portland OR 97231   503-614-0430
> 
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.



More information about the time-nuts mailing list