[TowerTalk] SP7GXP antennas?

[Randy Farmer]

Sounds like they're specifying gain relative to isotropic, hence an 
extra 2.1 dB.

73...
Randy, W8FN

On 10/21/2021 10:38 AM, john at kk9a.com wrote:
> I have modeled some OptiBeam antennas and the published specs seem accurate.
> Of course getting 2db more gain from the same boom length would circumvent
> the laws of physics. I recently installed a 4el 40m OptiBeam on my tower,
> the SP6GXP version is 37% lighter.
>
> John KK9A
>
>
> David Gilbert AB7E wrote:
>
> His 16 element 20/15/10 tribander looks like an almost complete copy of
> my Optibeam OB16-3, except that SP6GXP claims about 2 db more gain on
> each band and uses lighter weight materials.
>
> Dave   AB7E