You're sure it's RF and not something else?

There was an infamous case in Monterey Bay that disabled GPS
on-and-off for months.  Turned out to be that bane of the=20
radio amateur, a faulty TV amplifier in someone's=20
attic.  You might want to check your own house, although
it could also be a neighbor. =20


-----Original Message-----
From: psnlist-request@.............. [mailto:psnlist-request@...............
] On Behalf Of jonfr@.........
Sent: Monday, November 01, 2010 12:44 PM
To: psnlist@..............
Subject: Re: GPS RECEIVER

Hi,

I have never had a GPS signal jammed because of some other transmitters
that are being used close to my GPS antenna.

Regards,
J=F3n Fr=EDmann.

> Hello PSN:
>
> Many of you have this gps receiver to get good times on your graphs
> and over time you should learn any problems.
>
> I have found one Which I do not know how to beat.
>
> There seems to be RFI related problems
> where the in the presence of a high energy RF field
> of some frequency the GPS signal or A/D board is being
> jammed and the lock is lost and an alarm will sound.
>
> This problem is not the fault of of the device
> but simply related to the fact the unwanted RF signal
> has penetrated the electronics.
>
> Can anyone tell me if they have successfully won
> the battle of when like a police car or fire truck
> or other government car is outside in the neighborhood with a 25 watt
> transmitter maybe 100ft away and using their radio ?
>
> It wipes out my data and everything for a minute or so.
>
> This mostly happens in the winter when the city
> here grows three times its normal population.
>
> Comments ?
>
> geoff
>
> or, grumbly in Arizona.
>
>
> __________________________________________________________
>
> Public Seismic Network Mailing List (PSNLIST)
>
> To leave this list email PSNLIST-REQUEST@.............. with
> the body of the message (first line only): unsubscribe
> See http://www.seismicnet.com/maillist.html for more information.
>


__________________________________________________________

Public Seismic Network Mailing List (PSNLIST)

To leave this list email PSNLIST-REQUEST@.............. with=20
the body of the message (first line only): unsubscribe
See http://www.seismicnet.com/maillist.html for more information.
__________________________________________________________

Public Seismic Network Mailing List (PSNLIST)

To leave this list email PSNLIST-REQUEST@.............. with 
the body of the message (first line only): unsubscribe
See http://www.seismicnet.com/maillist.html for more information.