I don't know, for the warmer winter here that is something we didn't get
that much.  I've seen inversions though all the way to 800 MHz though, and
it has been humid here the last few days, and SUnday it was lower.  I am
using the Trekker with Bluetooth RBT-2000 Receiver.





On Wed, 7 Jun 2006, Brett Winchester wrote:

> We get inversions  in the winter months here and I have not noticed any
> degradation of the G. P. S. signals at those times.  Wonder if the
> humidity is the real factor at the 2 ghz plus frequencies here?
>
> >>> [log in to unmask] 6/7/2006 8:29 AM >>>
> Hi Collin and the group.  I guess that it is a give and take type
> deal
> then.  I love to DX and work skip on 2-meters and 440, but don't
> appreciate this bad coverage.  Like I posted on Sunday the GPS worked
> well, and it was cooler.  The last few mornings there have been band
> openings that have  been fun.  I guess then that if 2-meters is opened
> and
> opened wide it will be an olman for poor GPS coverage.
>
>
>
>
>
> On Wed, 7 Jun 2006, Colin McDonald wrote:
>
> > hi Jeff:
> > My bet would be that the GPS isn't getting a good signal from the
> satelites
> > because of a dense ceiling layer caused by extreme heat and
> humidity.
> > When there is much heat near the ground, and cooler temps up higher,
> a layer
> > is created...due to high levels of moisture in the eastern areas of
> the US
> > or anywhere near coast lines and large bodies of water, a layer of
> moisture
> > adds to the problem.
> > It can also be great for ground wave DX...50MHZ and above just love
> moisture
> > layers, or inversion layers to propigate with.
> > 73
> > Colin, V A6BKX
> > ----- Original Message -----
> > From: "Jeff Kenyon" <[log in to unmask]>
> > To: <[log in to unmask]>
> > Sent: Wednesday, June 07, 2006 6:50 AM
> > Subject: another GPS observation
> >
> >
> > > Hi everyone, I have had my Trekker GPS for a few months  wont, and
> have
> > >  made a few observations.  When it is hotter out it takes it longer
> to get
> > > a signal, and when it does it seems that the signal isn't that
> good.  i
> > > went out on Sunday when it was cooler and it worked better, but
> this week
> > > when it has been warmer the signal strength hasn't been too hot.
> > >
> > >
> >
>