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My First Test with a Cubical Quad

I am so confused. I built this thing EXACTLY to the output of the calculator here:
http://www.ve3sqb.com/
I expect that it would be off a TINY bit as a result of insulation (I understand you have to remove 2-3% of length if you are using insulated wire).
Ignore my ugly duct tape as it was just temporary to get this thing off the ground for testing.
For some reason the best SWR I can get is 6:1 and higher. EVERY measurement was made exactly to the output of the software for 2M antenna with a 75ohm matching feed.
Ideas?

Re: My First Test with a Cubical Quad

A 6:1 swr usually indicates a problem with the feed line. If you are using new coax then check the connectors for an open or short. Like most software for any type of antennas the designs are tried and true. The quad program is 20 years old and used hundreds of times. what are you using to measure the swr? Do you have an antenna analyzer or a vna that would help you trace the problem?

Re: My First Test with a Cubical Quad

Al
A 6:1 swr usually indicates a problem with the feed line. If you are using new coax then check the connectors for an open or short. Like most software for any type of antennas the designs are tried and true. The quad program is 20 years old and used hundreds of times. what are you using to measure the swr? Do you have an antenna analyzer or a vna that would help you trace the problem?
Thanks for the reply. I gave up for a while as I could't seem to get any help at the time, plus I got busy with other things. I was using an analyzer to get the numbers.