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Discussion of precise time and frequency measurement

MCL Antenna Splitter

Arthur Dent

Mon, Sep 27, 2010 6:58 PM

I am using one of the MCL-ZAPD-3DB units I bought new on Ebay
and it was easy to change the input antenna connector from an “N”
to the “TNC” connector that I needed, eliminating an adaptor and
probably a little loss. One of the outputs from the ZAPD is
connected to a 40-2400MHz 4–way splitter (with “F” connectors)
that was designed for TV applications. I bought a splitter with one
output with d.c. pass through so the T-bolt I leave on all the time
can power the antenna. They do make a model with all 4 ports with
d.c. pass through but I chose to go with the one. Seeing the T-bolts
use an “F” connector as well, it makes most of the cabling pretty
simple and off the shelf. I realize there are better ways to accomplish
this but my way was inexpensive, simple, and effective, at least for
my needs.
-Arthur

I am using one of the MCL-ZAPD-3DB units I bought new on Ebay and it was easy to change the input antenna connector from an “N” to the “TNC” connector that I needed, eliminating an adaptor and probably a little loss. One of the outputs from the ZAPD is connected to a 40-2400MHz 4–way splitter (with “F” connectors) that was designed for TV applications. I bought a splitter with one output with d.c. pass through so the T-bolt I leave on all the time can power the antenna. They do make a model with all 4 ports with d.c. pass through but I chose to go with the one. Seeing the T-bolts use an “F” connector as well, it makes most of the cabling pretty simple and off the shelf. I realize there are better ways to accomplish this but my way was inexpensive, simple, and effective, at least for my needs. -Arthur

Mark Spencer

Mon, Sep 27, 2010 7:19 PM

If I decide to leave both GPSDO's running full time I'll likely invest in a
propper GPS splitter.

----- Original Message ----
From: Arthur Dent golgarfrincham@yahoo.com
To: time-nuts@febo.com
Sent: Mon, September 27, 2010 11:58:26 AM
Subject: [time-nuts] MCL Antenna Splitter

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Home depot here in Canada sells a three way (one input, three outputs) satellite TV splitter with power pass thru on one port only. This works okay with my Thunderbolt and Rockwell Jupiter based GPSDO, with the un used port terminated with a 75 ohm load. I did notice that when I powered the antenna via the Rockwell GPS that the thunderbolt showed an open antenna as expected. When I disconnected the Rockwell GPS from the power pass thru port on the splitter the thunderbolt then powered the antenna. This was not expected so as a precaution I disabled the 5 volt power output from the Rockwell GPS only power the antenna from from the Thunderbolt. If I decide to leave both GPSDO's running full time I'll likely invest in a propper GPS splitter. ----- Original Message ---- From: Arthur Dent <golgarfrincham@yahoo.com> To: time-nuts@febo.com Sent: Mon, September 27, 2010 11:58:26 AM Subject: [time-nuts] MCL Antenna Splitter I am using one of the MCL-ZAPD-3DB units I bought new on Ebay and it was easy to change the input antenna connector from an “N” to the “TNC” connector that I needed, eliminating an adaptor and probably a little loss. One of the outputs from the ZAPD is connected to a 40-2400MHz 4–way splitter (with “F” connectors) that was designed for TV applications. I bought a splitter with one output with d.c. pass through so the T-bolt I leave on all the time can power the antenna. They do make a model with all 4 ports with d.c. pass through but I chose to go with the one. Seeing the T-bolts use an “F” connector as well, it makes most of the cabling pretty simple and off the shelf. I realize there are better ways to accomplish this but my way was inexpensive, simple, and effective, at least for my needs. -Arthur _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.