Roger, I took a look at this unit and it appears to be an active unit rather than a passive switcher that you need for Topband. You can call Dynair at 858-450-0504 and see if they can tell you where to download a schematic.

Herb, KV4FZ

On 7/4/2015 5:47 PM, Roger D Johnson wrote:
I've been looking for a way to switch multiple receiving antennas to multiple receivers. I know some hams are using video switchers but info on them is scarce. There is a Dynair SVA-100B for sale on eBay but no real description
of it's functions.

It seems obvious that you can, for instance, switch input 3 to output 7 but can you simultaneously switch input 5 to output 6? In other words, can you have more than one path through the switcher?

Any other ideas on switching greatly appreciated!

73, Roger




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