Why this is important

When you select an antenna with your RF switch you expect to hear all of the signals that are on that antenna. – And that is all you want to hear!

You don’t want to hear the signals from any of the other antennas.

Port-to-port isolation is the property of the RF switch that keeps you from hearing signals from any of the other antennas.

When you listen on a band if you have more noise than you would expect then you may have less port-to-port isolation than you should.

There is a lot of RF out there. All of your antennas are immersed in RF all of the time. When you listen to 80m, for instance, your 40m antenna is still picking up the RF from the 40m Band, 160m Band, AM Broadcast Band, etc. Your other antennas are doing the same thing. Sometimes, the signals from two or more of the antennas can mix to give you even more interference issues.

If the port-to-port isolation of your RF switch is lacking, you are going to hear some amount of the noise that the other antennas are picking up. This raises the noise floor of your location and makes it difficult to hear that station that you are trying to work.

DX Engineering RF Switches have a port-to-port isolation of greater than 70dB. This is the best port isolation of all of the coax switches that we have tested --- and we have tested ALL of the major brands. If you are not using a DX Engineering RF switch you are hearing more background noise than you need to.

NOTE: Some of the switches that we have tested from a major Manufacturer have tested as low as 30 dB!!

None of the tested switches has a port-to-port isolation as high as the DX Engineering RF switches.

This is one location in your station where you need the very best!

DX Engineering RF Switches are The Best.