Topband: Video Switch for Low Band Antenna switching

[Roger D Johnson]

It appears that the better video switches need a signal from the vertical 
blanking interval to switch. No
signal, no switching. Probably explains why they are so cheap on eBay!

I have 3 bi-directional Beverages, an 8 circle and 4 square receiving antennas. 
I would like to switch
any one to my K3 main rx, K3 aux rx, R-388 or DX Engineering NCC-1 phasing box. 
That's 8 inputs
and 4 outputs minimum.

Ideally, some sort of matrix arrangement would do. I've looked far and wide for 
a commercial unit that
would do the job but no luck. Virtually everything is designed for SO2R 
operation. At present, I'm using
a switcher used in RV units. It has 5 inputs and 3 outputs. I use a separate 
switch for Beverage selection.

Thanks for all the inputs!

73, Roger


On 7/4/2015 21:47, 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
>
>
>
>
> <http://antiqueradios.com/forums/report.php?f=2&p=2337227>
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