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PostPosted: Mon Nov 28, 2016 3:14 pm 
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Joined: Mon Nov 28, 2016 4:44 am
Posts: 5
Hello everybody

I have a Tough Book CF19 MK2 with Windows 7.

I have a Problem with my GPS Signal.

In Operation with Battery i don't have any Problems. Outdoor or in a Room i have perfect 3D GPS Signal.
But when I plug the laptop at the current for charging whether home or with the car charger, the GPS signal is practically out.
I only have bad to no reception.

Do you have an idea or help?

greetings from Switzerland
Michel


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PostPosted: Mon Nov 28, 2016 4:50 pm 
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Please post a photo of the label of the home charger and the car charger.

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PostPosted: Tue Nov 29, 2016 1:11 am 
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Hello

ok i will post a Photo tonight.

But i have the Original Home Charger from Panasonic and in the Car the LIND Charger 12-32V. My Car ist running on 24V.
With both Charger i have the same Problem.

If I connect the power plug to the laptop is the signal quite weak or gone. As soon as I remove plug from the power connection is in seconds the GPS reception is again good.

Greetings Michel


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PostPosted: Tue Nov 29, 2016 6:00 am 
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Joined: Mon Nov 28, 2016 4:44 am
Posts: 5
Now are the Pictures.


Attachments:
File comment: Car Charger from Lind for CF19
P1060489.JPG
P1060489.JPG [ 144 KiB | Viewed 1657 times ]
File comment: Original Charger for Home Use
P1060488.JPG
P1060488.JPG [ 137.17 KiB | Viewed 1657 times ]
File comment: Original Charger for Home Use
P1060485.JPG
P1060485.JPG [ 135.08 KiB | Viewed 1657 times ]
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PostPosted: Tue Nov 29, 2016 6:22 am 
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Thank you for the photos.

Many people use aftermarket chargers at the wrong voltage.
I just wanted to verify that you have the correct chargers first.
Those are both fine.

Next question.. What bios version? Post a photo of the main BIOS page if you can. I am wondering if you have a custom BIOS that shuts off the gps power. The antenna connection and switching is mechanical only, but the main gps power is controlled by the BIOS.


Panasonic has a program called gps viewer. It is listed under the drivers for later models. (CF 31 mk3) Install that and run it to check gps. Use com3. It will give us a visual of the data stream.

What are the exact conditions of the issue? Are sure the problem is not the location?
If I am standing outside running on battery, I get great gps reception. As soon as I come inside my home, I lose reception. My issue is not that I am plugged in to the AC adapter, it is the metal roof of my home (or car).

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PostPosted: Tue Nov 29, 2016 6:51 am 
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Joined: Mon Nov 28, 2016 4:44 am
Posts: 5
Here the Photo from Bios

The problem is wherever I am.
When running on battery, the GPS runs properly.
Whether in the house, in the garden or in the wide mountains.
As soon as I connect it to the power at the same place, the signal coincides.

With very good signal with battery I sometimes have a signal with power connection. But only weak. Of 8 saddles remain just 3-4 left or it breaks completely together to 80%


Attachments:
P1060500.JPG
P1060500.JPG [ 129.3 KiB | Viewed 1653 times ]
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PostPosted: Tue Nov 29, 2016 7:52 am 
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It is not a custom BIOS. That is good
Is this a built in gps or a usb one?

Try the gps viewer and report back.

Hopefully Teo will read this and have a better answer.

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PostPosted: Tue Nov 29, 2016 8:10 am 
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Joined: Mon Nov 28, 2016 4:44 am
Posts: 5
Hi

Its a original Sony GPS in the Laptop. Also Build/In

I have a Progamm to see the GPS Stream. Its called GPS-Information and its Freeware.
What will you see from there?


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PostPosted: Tue Nov 29, 2016 10:05 am 
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I want to know if the stream continues or stops when the gps quits working.
If the stream quits, you have a power problem.
If the stream continues, you have an antenna or module problem.

Personally, I never liked the Sony modules. I much prefer the Leadtek modules.

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