[time-nuts] GPS splitter measurements
azelio.boriani at screen.it
Thu Oct 11 19:15:13 EDT 2012
To test this kind of items, you have to play with DC-blocks and bias-tees.
Rather tedious but necessary. I know as at times I have to test
questionable GPS antennae that return after lightning strikes.
On Fri, Oct 12, 2012 at 1:09 AM, paul swed <paulswedb at gmail.com> wrote:
> Magnus what would the possibility be of measuring an 8 way satellite
> splitter? The $7 wonders with dc pass through. That looks like a very nice
> network analyzer you have.
> On Thu, Oct 11, 2012 at 7:05 PM, Magnus Danielson <
> magnus at rubidium.dyndns.org> wrote:
> > On 10/12/2012 12:16 AM, Azelio Boriani wrote:
> >> Please take care that the S14WI is "smart": if it doesn't sense a DC
> >> current on the antenna port then it reports that to the user ports and I
> >> think it can even power off the internal amplifier, this can account for
> >> the observed loss instead of the gain.
> > I did consider this. but did not have the time and energy to follow that
> > up at the time. It was only when I got home that I could dig up the
> > datasheet and manual of the S14WI. Didn't want to fry it in the lab.
> > I rather do an incomplete lab quick and safe. I reports warts and all.
> > I'll see if I get time to re-do it tomorrow.
> > Regardless, I want to get things going. More people than me should be
> > to do this.
> > Cheers,
> > Magnus
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