The companies "GPS Source" and "GPS Networking" make so-called "networked"
splitters which have very high isolation between ports and which, as a
bonus, do not require unused outputs to be terminated.
How does this work? The incoming signal is amplified by roughly 25 dB, then
split several ways
A resistive splitter has essentially no useful port-to-port isolation, in
addition to the
excess splitting loss problem. For this reason, resistive splitters are
usually used
only when very broad frequency ("DC to daylight") coverage is needed.
Many RF splitters are of the Wilkinson variety, or
Hi
Pretty much *any* splitter will have issues with outputs being un-terminated.
Resistive splitters are really no worse that others. The problem that they have
is 6db of loss per split rather than 3db.
The Symmetricom units are not immune to this. They have a single amplifier that
drives a
I keep forgetting to do a thread about this.
I recently (er, perhaps a year ago) picked up a Microlab unit, and was
very disappointed, notably the output simply isn't built to handle being
plugged into units that provide antenna power, with each port ending up
having a DC path to ground (at 200
On 28/06/2021 21:56, lstosk...@cox.net wrote:
Thanks guys. Opened a lot of things to think of. Makes me wonder how I get
any results from a north facing window with the UV coating! Will work out
something. N0UU
Maybe an antenna in the loft might produce better results? Check it
with
Or, it could be that the UV coating is really a multi-layer dielectric
coating, not metal at all,
in which case it would have negligible impact on L-band signals.
Dana
On Mon, Jun 28, 2021 at 6:17 PM Dana Whitlow wrote:
> Could be that north-facing window/reflector is actually helping you a
Could be that north-facing window/reflector is actually helping you a bit
with signals
from the south coming through the house. Stranger things have happened ...
Dana
On Mon, Jun 28, 2021 at 4:03 PM wrote:
> Thanks guys. Opened a lot of things to think of. Makes me wonder how I
> get any
Hi
One significant thing to consider:
How many GNSS bands do you want / need / wish to cover?
A while back, you would be fine just grabbing GPS and Glonass on one band.
These days
widening things out to two or three bands may make sense. There are an ever
increasing
number of devices that
I have a couple of these and they work wonderfully well:
https://timemachinescorp.com/product/4-way-gps-splitter/
They also have an option that you can power with an external
supply, which is a nice feature if you need it.
John
Original Message
Subject: [time-nuts] Re: GPS
4-port: ttps://www.sv1afn.com/en/gnss-gps/-7.html 99euro I have one
works fine
Don
On 2021-06-27 15:06, Georg Sauthoff wrote:
Hello,
On Sat, Jun 26, 2021 at 11:49:26PM -0400, lstosk...@cox.net wrote:
I seem to have an gathering of GPS antenna on my window ledge. I seem
to have missed info
Hello,
On Sat, Jun 26, 2021 at 11:49:26PM -0400, lstosk...@cox.net wrote:
> I seem to have an gathering of GPS antenna on my window ledge. I seem
> to have missed info on building a splitter/amp to take one signal and
> distribute it. Quick reference? N0UU
Sysmocom has a 16-channel GPS
Hi
It’s well worth getting an antenna into a good location before you
play with splitters. Things like the amount of gain needed may change
as coax runs get longer.
Bob
> On Jun 26, 2021, at 11:49 PM, lstosk...@cox.net wrote:
>
> I seem to have an gathering of GPS antenna on my window ledge.
Sending something like this to google ”gps splitter site:febo.com” is a good
start to search the archives.
/Björn
Sent from my iPhone
> On 27 Jun 2021, at 06:47, wb...@gci.net wrote:
>
> A DuckDuckGo or Goggle searco on "gps antenna split" will give you more than
> you want to know
>
A DuckDuckGo or Goggle searco on "gps antenna split" will give you more than
you want to know
- Original Message -
From: lstosk...@cox.net
To: time-nuts@lists.febo.com
Sent: Sat, 26 Jun 2021 23:49:26 -0400 (EDT)
Subject: [time-nuts] GPS antenna distribution???
I seem to have an
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