GPS and solar flares

I have a GPS antenna which is never moved. With this antenna position the
receiver normally "sees" 4 satellites. A PC is connected to the receiver and
on some occasions I can see that the receiver has lost FIX for many minutes.
Is it possible to check if this coincides with changing solar activity (is
there somewhere on the web that these activities are recorded?) and will the
problem disappear if I get a better antennaposition to "see" more
satellites?

RK wrote:
Acquisition of only 4 satellites is really not very many.

What kind of receiver are you using?

I have several GPS units that I can use in a "mobile" type environment.

However, I am also using a frequency standard in a fixed location. Even
with that, I am seeing anywhere from 6-10 satellites at a time. It will
only lock on 8 but it will also display the satellites it is not tracking.

However, I am also using a frequency standard in a fixed location. Even

Please explain: Do you have a GPS signal source for testing receivers and
if so how do you avoid that the satellites signals interfere with your
source? And if not what do you mean by frequency standard?

RK wrote:

No, I do not have a GPS simulator although I think I have seen where
they are made.

My frequency standard is a special receiver that takes the extreme
accuracy of the GPS system and provides a very stable and accurate 10mhz
reference signal for electronic and other communications equipment. It
also provides a VERY precise 1pps timing output (which I do not use).

The frequency standard is NOT designed for navigation or mobile
purposes. It is designed to be set up in one location and provide a
stable, highly accurate signal reference.

This is exactly what I use it for, but I monitor the 1 PPS signal and log
it on a PC, and this is where I occasionally see that the 1 PPS signal is
lost. I have solar activity suspected for this and that's why I'd like to
see if my loss of signal coincides with a rise in solar activity!