[time-nuts] 10 MHz 'failover' switch?

Van Horn, David david.vanhorn at backcountryaccess.com
Thu Jul 26 18:23:05 EDT 2018


Not quite what you are looking for, but I implemented a pair of thunderbolts with no common parts (dual antennas power etc) into a simple RF switch.
The production manager flipped the switch on Mondays, and if either system wasn't working I had a third system in a box ready to replace.
So for any failure of the two live systems, all he had to do was flip the switch and call me.


-----Original Message-----
From: time-nuts <time-nuts-bounces at lists.febo.com> On Behalf Of W7SLS
Sent: Thursday, July 26, 2018 1:46 PM
To: time-nuts at lists.febo.com
Subject: [time-nuts] 10 MHz 'failover' switch?

Hello,

Looking for recommendation for a ‘failover’ or ‘redundant’ switch for 10 MHz distribution.

	Not really sure of the correct term.
	Something that sensed RF on primary 10 MHz, and then switched to secondary on fail of primary.

A brief search showed several very nice $$$ items, suitable for commercial applications, but I wonder if there are some “last year’s” (but not last century) versions that would work for a home lab.

Context:

I have a GPSDO and a Rb source of 10 MHz.  
The power supply on the GPSDO failed (worked enough to light up the GPSDO, but not enough to lock).
I have a new power supply on order, but would be nice to have “insurance”.

Thanks in advance for the group bandwidth.

Scott
W7SLS
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