2 to 4 channel video multiplexer for robot

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Hello guys,

This is my first post but I have been reading the posts for some time.

I am building a medium size robot that will have up to 4 video sources
that I want to be able to control.
The best thing I have found so far has been the "X-QVC-EM" engineering
module from www.xavien.com . I have 2 questions:

1. Has anybody used this before, and if so how well does it work? The
price is really good, I have seen similar units for alot more money,
but you never know.

2. Anyone have any other ideas or recommendations? I need 4 video
inputs that are 75 ohms, I want to be able to choose which source is
displayed on the screen, and I want simple TTL control.

Thanks guys.

Carl.

 

[Jan Panteltje]

2. Anyone have any other ideas or recommendations? I need 4 video
inputs that are 75 ohms, I want to be able to choose which source is
displayed on the screen, and I want simple TTL control.

inputs with 75 Ohm terminations, a 74HC4051 1of8 switch,
and, if you need to drive 75 Ohm again, a 5 MHz wide 2x amp with
2 transistors.