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Yes Riverman, I would agree.
However, let us go a step further using these numbers.
Again using 100 watts to the antenna.
A half-wave ground plane having 1.5 dB gain over a Dipole...
ERP = 141.2 watts equates to a 34% increase over the A99
The 5/8ths ground plane having 2 dB gain over a Dipole...
ERP = 158.5 watts equates to a 41% increase over the A99
Now using these reasonable numbers we can begin to show a discernable difference if all antenna conditions are equal.
All the Best
Gary

I am not saying these are TRUE real-world numbers, just this old math major having fun playing with his pad and pencil.

<blockquote data-quote="BJ radionut" data-source="post: 723898" data-attributes="member: 7026">Yes Riverman, I would agree.However, let us go a step further using these numbers.&nbsp;Again using 100 watts to the antenna.A half-wave ground plane having 1.5 dB gain over a Dipole...ERP = 141.2 watts equates to a 34% increase over the A99The 5/8ths ground plane having 2 dB gain over a Dipole...ERP = 158.5 watts equates to a 41% increase over the A99Now using these reasonable numbers we can begin to show a discernable difference if all antenna conditions are equal.All the BestGary&nbsp;I am not saying these are TRUE real-world numbers, just this old math major having fun playing with his pad and pencil.<img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f606.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":LOL:" title="Laugh&nbsp; &nbsp; :LOL:"&nbsp; data-smilie="19"data-shortname=":LOL:" /></blockquote>

[QUOTE="BJ radionut, post: 723898, member: 7026"] Yes Riverman, I would agree. However, let us go a step further using these numbers. Again using 100 watts to the antenna. A half-wave ground plane having 1.5 dB gain over a Dipole... [B]ERP = 141.2 watts equates to a 34% increase over the A99[/B] The 5/8ths ground plane having 2 dB gain over a Dipole... [B]ERP = 158.5 watts equates to a 41% increase over the A99[/B] Now using these [I]reasonable [/I]numbers we can begin to show a discernable difference if all antenna conditions are equal. All the Best Gary I am not saying these are TRUE real-world numbers, just this old math major having fun playing with his pad and pencil.:LOL: [/QUOTE]

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