GPS Antenna

john smith wrote:

Why would you go to the hassle of an active splitter at 1.7 GHz. when it is
not necessary? Remember, a good engineer can build a bridge that will stand
up to maximum design loads plus safety factor. An EXCELLENT engineer can
build a bridge that will stand up to maximum design loads plus safety factor
JUST BARELY.


Oh what the heck!!!
Let's make this real world...
A good engineer can build a levy that will stand up to a Level 5
hurricane plus safety factor. An EXCELLENT engineer can build a levy
that will stand up to a Level 5 hurricane plus safety factor JUST BARELY.

And let's add the corillary... for tens of billions of dollars less.

The real world is that the politicans controlling the money won't
approve enough for either.


Matt

john smith wrote:

Why would you go to the hassle of an active splitter at 1.7 GHz. when it is
not necessary? Remember, a good engineer can build a bridge that will stand
up to maximum design loads plus safety factor. An EXCELLENT engineer can
build a bridge that will stand up to maximum design loads plus safety factor
JUST BARELY.


Oh what the heck!!!
Let's make this real world...
A good engineer can build a levy that will stand up to a Level 5
hurricane plus safety factor. An EXCELLENT engineer can build a levy
that will stand up to a Level 5 hurricane plus safety factor JUST BARELY.

And let's add the corillary... for tens of billions of dollars less.

Don't forget about the explosives to make them fail at the right time.

john smith writes:

Let's make this real world...
A good engineer can build a levy that will stand up to a Level 5
hurricane plus safety factor. An EXCELLENT engineer can build a levy
that will stand up to a Level 5 hurricane plus safety factor JUST BARELY.


Not quite... See, Level 5, unlike those below it, has no upper limit...

--
A host is a host from coast to
& no one will talk to a host that's close........[v].(301) 56-LINUX
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

Trivial for you and trivial for me.... as long as we both know the receiver
designs to let us know where the direct and AC ports of the hybrid should be
located. But without further knowledge of the receivers it takes a little
more testing to get the information. I doubt the original poster had that
information.

John Severyn
"RST Engineering" wrote in message
.. .
It is trivial. You let the one side of the hybrid direct couple the
signal and let the other side of the hybrid capacitively couple the
signal. THe downside is that the DC receiver has to be on and working to
let the AC receiver work. A bit more work with diodes and chokes can be
done as a work-around to let either of the receivers power the active
antenna.

Jim




"J. Severyn" wrote in message
news:QsOdncAU7pUX6gbeRVn-

This is not quite as simple as just hybrid or resistive RF power divider
because of the 5V for the LNA inside of many GPS antennae. More info is
needed on the receivers and the antenna.

Darrel Toepfer wrote:

And lets build a Level3 instead and pocket the difference for artsee
projects...

And let's just drive the pilings 1/3 the way down and pocket the difference.

George Patterson
Coffee is only a way of stealing time that should by rights belong to
your slightly older self.