Bruce, the most common cause of a GPS receiver getting the date incorrect is
due to cross-correlation. And cross-correlation is usually the result of
too much gain in the GPS antenna's LNA. And depending on the make of the
receiver, some will clear the date information with a power cycling and
others require erasing the flash memory where those parameters are stored.
Do you have a way to see the relative C/No reading for your receiver? Most
receivers start experiencing cross-correlation when this reading exceeds 50.
Regards, Doug, K4CLE...
Connected by DROID on Verizon Wireless
-----Original message-----
From: Bruce Lane <[email protected]>
To: [email protected]
Sent: Wed, Oct 19, 2011 22:00:40 GMT+00:00
Subject: Re: [time-nuts] Epoch rollover?
Heh... Well, that's annoying. This being the case, I have no idea why
the date went whacko...
Thanks.
*********** REPLY SEPARATOR ***********
On 19-Oct-11 at 17:45 Joseph M Gwinn wrote:
The last rollover was in August 1999, just before Y2K, and the next
rollover will be in April 2019.
From: "Bruce Lane" <[email protected]>
To: [email protected]
Date: 10/19/2011 05:19 PM
Subject: [time-nuts] Epoch rollover?
Sent by: [email protected]
Hi, gang,
Did we just have another GPS epoch rollover? My trusty old
Odetics 425
seems to believe the date is March 4th, 1992.
I could probably correct it in firmware, if I looked hard and
long
enough, but the ToD is still correct and the frequency standard is
staying nicely locked. Not sure if recovering the correct Julian date is
worth the effort.
Thanks much.
Bruce Lane, Owner & Head Hardware Heavy,
Blue Feather Technologies (http://www.bluefeathertech.com)
Assoc. member, AZA & AAZK for many moons.
"Salvadore Dali's computer has surreal ports..."
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