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Author Topic: Advise on Antenna Switch  (Read 383 times)
KC8QXI
Member

Posts: 4




Ignore
« on: January 30, 2003, 12:57:41 PM »

Looking for a good manual antenna switch..
Can anyone help..
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WB2WIK
Member

Posts: 20595




Ignore
« Reply #1 on: January 31, 2003, 11:26:50 AM »

You didn't say how many ports you need, or what frequency you'll be using, but the Alpha-Delta coaxial switches are good, well-made and support operation through the VHF spectrum with an excellent match.

I've noted the MFJ coaxial switches (and I own two of them) look similar, but are not made the same way and actually can be quite poor, compared with the Alpha-Delta designs, especially with regard to isolation and impedance (maintaining 50 Ohms through the switch) in the VHF region.

The old-fashioned "wafer switch in a can" designs by B&W and others are very poor performers compared with the Alpha-Deltas.

For UHF+ work, I use only Bird Electronics RF transfer switches, which use a rotating coaxial line section and are excellent up to 2 GHz+.

WB2WIK/6
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WA4PTZ
Member

Posts: 528




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« Reply #2 on: February 01, 2003, 06:58:05 AM »

Yes, I'm afraid that WIK is correct...not enough
information to provide good answers.
73 - Tim
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