I agree.

It is the antenna elevation which matters.
However, having said that, further description might clarify the situation.
Around here, with my vertical, I put out a better signal at only a few feet
above sea level, and about 100 yards away, with minimal grounding, than my
friend 300 feet higher on a chalk escarpment with a reasonable earth system
for his equivalent vertical.

The relative ground conductivity is the answer in our instance.

With a yagi, however, it would be a different scenario.

73

David W Wood 

-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Pat Byrne
Sent: Tuesday, April 14, 2015 3:13 PM
To: [log in to unmask]
Subject: Re: antenna height measurement question

David,
i would think that antenna height is above ground, whether that be on 
the paciffic ocean beach or in Denver.  Otherwise, here near Chicago 
my G5RV is nearly 1,000 feet high!  i couldn't afford the feedline!
Pat, K9JAUAt 08:18 AM 4/14/2015, you wrote:
>Hi:
>
>If a person's QTH is in an elevated area(Denver, for example), which is
>nicknamed the "mile-high city", and they tell you that their hex beam is
>mounted at a height of 50 feet, it seems to me that this figure should be
>added to the QTH's elevation to have a more accurate height  Is this valid,
>or is this a faulty assumption         ?
>
>Sincerely yours,
>
>
>
>David S. Pearson-wa4dsp.
>
>
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