Multiple antennas using one coax feed

[prcguy]

Then we will have to agree to disagree. In my professional life I used 75r BNC connectors extensively and in my comm's experience, 50r too. 75r BNC just like N type have thinner diameter pins.

I’ve installed thousands and thousands of BNC connectors for the largest satellite provider in the US, both 50 and 75 ohm including testing most brands on vector network analyzers and specifying which brands to use. I was also a certified trainer for installers teaching them how to use the tools for putting on connectors. If you have a BNC with a thinner center pin please post the dimensions.

 

[galligan122]

Is there a certain distance the 150 MHz antenna would need to be from the 800 MHz one to avoid problems? Right now I have one mast, and to have it high enough they would need to be very close together.

 

[mmckenna]

Is there a certain distance the 150 MHz antenna would need to be from the 800 MHz one to avoid problems? Right now I have one mast, and to have it high enough they would need to be very close together.

If it's just receiving, you want to keep it a wavelength or so away to prevent the smaller antenna from becoming directional.

For 800MHz, you probably want a foot or more of space. Getting creative with some brackets or Unistrut can make this pretty easy.

 

[galligan122]

If it's just receiving, you want to keep it a wavelength or so away to prevent the smaller antenna from becoming directional.

For 800MHz, you probably want a foot or more of space. Getting creative with some brackets or Unistrut can make this pretty easy.

Thank you!