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Since the GM was marketed to compete against 5/8 wave ground planes it has its gain figures referenced against the 5/8 wave ground plane rather than the 1/2 wave dipole.

Some of us are curious if Sirio had the time to confirm the specifications in question were free space gains and if you had a chance to conduct the simple 4 wire test on your Sigma models to determine if they are reliable?

[QUOTE="Shockwave, post: 445444, member: 10882"] Since the GM was marketed to compete against 5/8 wave ground planes it has its gain figures referenced against the 5/8 wave ground plane rather than the 1/2 wave dipole. Some of us are curious if Sirio had the time to confirm the specifications in question were free space gains and if you had a chance to conduct the simple 4 wire test on your Sigma models to determine if they are reliable? [/QUOTE]

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