2010/2/24 Gora Mohanty :
>> impossible to get a fix. I was surprised that I managed to get
>> a fix in a jet aircraft a few months ago - I would have expected
>> this to be a good shield too.
> [...]
>
> You were probably sitting in a window seat, right? Getting a fix
> from a window seat is usua
On Tue, 16 Feb 2010 18:29:10 +
Graham Jones wrote:
> You are both right. RF absorption is a combination of amount of
> material and its properties. I think the issue with trains is
> limited to newer ones with special windows (I think they are
> conductive - some cars have them too). The
You are both right. RF absorption is a combination of amount of material
and its properties. I think the issue with trains is limited to newer ones
with special windows (I think they are conductive - some cars have them
too). The combination of shielding from the roof and windows makes it
pract
Hello everyone,
On Mar 16 Feb 2010, ce-test, qualified testing bv - Gert Gremmen wrote:
> No it ain't correct.
> Satellite signals are blocked by conductive materials
> such as metals, and to a limited extend by materials
> containing humidity (= limited conductivity) such as leaves
> and possibly
On Wed, 17 Feb 2010, Dave F. wrote:
> > It has little to do with the material it's made of, it's all about how
> > much mass an object has, the more mass the more it will absorb RF.
>
> Is this correct?
>
> I assumed the reason I had trouble getting reception on board trains
> because of what th
-boun...@openstreetmap.org
[mailto:talk-boun...@openstreetmap.org] Namens Dave F.
Verzonden: dinsdag 16 februari 2010 18:46
Aan: John Smith
CC: OpenStreetMap talk mailing list
Onderwerp: Re: [OSM-talk] fwd: Two thirds of mobile users want driving
ANDwalking navigation
John Smith wrote:
> On 17 February
On 16 Feb 2010, at 9:46 , Dave F. wrote:
> John Smith wrote:
>> On 17 February 2010 01:40, John F. Eldredge wrote:
>>
>>> Frequently you can't get a position fix at all, if the building has much
>>> metal in its structure. I can't get a position fix from inside my house
>>> unless I am near
John Smith wrote:
> On 17 February 2010 01:40, John F. Eldredge wrote:
>
>> Frequently you can't get a position fix at all, if the building has much
>> metal in its structure. I can't get a position fix from inside my house
>> unless I am near a south-facing window, probably due to a metalli
On 17 February 2010 01:40, John F. Eldredge wrote:
> Frequently you can't get a position fix at all, if the building has much
> metal in its structure. I can't get a position fix from inside my house
> unless I am near a south-facing window, probably due to a metallic-foil vapor
> barrier in t
Frequently you can't get a position fix at all, if the building has much metal
in its structure. I can't get a position fix from inside my house unless I am
near a south-facing window, probably due to a metallic-foil vapor barrier in
the attic.
--
John F. Eldredge -- j...@jfeldredge.com
"Rese
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