I got an Antenna with a 75 Ohm Impedance. Did I screw up?

[kalikraven]

How much difference will this make vs a 50 Ohm antenna? It's a wide band Yagi.

[IBCrazy]

75Ohms is not desirable, but should yield accceptable results so long as the elements are in the correct position. Most Yagis actually have a very low impedance (as in 30 ohms). I am surprised your is 75.

-Alex

[kalikraven]

It's a Wilson 304475 Wide Band Yagi. I was planning on trying it out for multiple video freq's. I may end up getting the 50 Ohm version and selling this one.

[Airborne]

This site offers a PCB log periodic antenna that has ~6dbi gain between 850MHz - 6.5GHz It is probably very similar to what is inside the Wilson antenna, but a lot cheaper ($18) and you can add your own connectors or run your own coax straight to the board.

http://www.wa5vjb.com/products1.html

Can't find any impedance ratings, however at this price you aren't going to be too upset if it sucks.

[IBCrazy]

I wouldn't bother changing it due to impedanece. You probably will not see a difference. Impedance only comes into play at the edge of your range. it is more of a measure to verify the antenna was built correctly in the first place.

-Alex