On 26 Feb 2007, John Ackermann N8UR <[EMAIL PROTECTED]> wrote: > I started working on my 58517A splitter yesterday. After looking at the > board, I don't think installing a simple 0-ohm shunt to the GPS port is > the right way to enable "thru" power. If you do that, port 1 will go > directly to a bunch of bypass capacitors, and I doubt you'll see any > signal there. What probably needs to be installed is an RF choke of > some sort. That'll let the DC through without shunting the signal to > ground.
What you say is correct -- an SMD RFC in 1206 does seem like the right thing and the shunt is clearly wrong. I don't recall why I thought the shunt was correct. It did work. I can only guess that there was sufficient reactance at L1 on the injected DC to prevent killing the RF. I've since switched over to SmartSplitter's. -- Christopher. _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts