[time-nuts] LTE-Lite and - S14WI 1x4 GPS splitter
Björn
bg at lysator.liu.se
Sat Nov 29 09:54:17 UTC 2014
Hi!
The splitter will not route 5V back out to another splitter port. Your gpsd(tcx)o antenna port is safe.
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Björn
<div>-------- Originalmeddelande --------</div><div>Från: cfo <xnews5 at luna.dyndns.dk> </div><div>Datum:2014-11-29 08:53 (GMT+01:00) </div><div>Till: time-nuts at febo.com </div><div>Rubrik: [time-nuts] LTE-Lite and - S14WI 1x4 GPS splitter </div><div>
</div>Gents
I have a S14WI GPS antenna splitter w. Opt :
Amplified + DC Bias Select + Ant Current monitor
It's connected to a Maxrad 40dB "ice cone timing antenna"
DS for the spliter here
http://www.amtechs.co.jp/2_gps/pdf/S14WI_spec.pdf
http://tinyurl.com/nfmpyqm
Currently i have this connected :
Port1 : Tbolt
Port2 : Z3810A
Port3 : Reserved KS Lucent (Waiting for TNC->BNC adapter)
Port4 : Reserved for LTE-Lite (hope to connect today)
Port3/4 have a 50ohm (BNC ethernet terminator) on right now
As i read the DS , the splitter currently used the antenna power from
Port1, to power the antenna, and Port2 is terminated w. 200ohm.
I'm a bit unsure about the DS , but as i read it it will isolate Port4
from the antenna DC , as it draws power from Port1 (Tbolt)
The LTE-Lite is 3v3 , and wouldn't like to get 5v on it's antenna.
If anyone could have a quick glance , and verify my assumptions i'd be
gratefull.
TIA
CFO -Denmark
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E-mail:xnews5 at luna.dyndns.dk
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