Workman W58 Not Really A 5/8 Wave Antenna?

[freecell]

I see, this is not a wire antenna though. Your formula is close enough to 585/f in the real world anyway.

Thank You,

SuperLid

that formula only applies to antennas in free space.

 

[SuperLid]

You implied that by adjusting the lower section, in lieu of the upper, the VSWR bandwidth would be wider, than narrower. The antenna was already too short, so nothing to adjust in respect to length, as it was at the physical maximum length as built.

The antenna is done and gone. I am happy about that and not going to play around with one of these again.

 

[SuperLid]

that formula only applies to antennas in free space.

It is close enough in real life.

 

[freecell]

@ a frequency of 27.205 mhz. the difference is 13.25 inches. it's easier to shorten an element if length is excessive than it is to add length to an element that is too short.

in free space: 585 / 27.205 = 21.50' or 258.04"
over real earth: 615 / 27.205 = 22.60' or 271.27"

learn the difference.

 

[SuperLid]

@ a frequency of 27.205 mhz. the difference is 13.25 inches. it's easier to shorten an element if length is excessive than it is to add length to an element that is too short.

in free space: 585 / 27.205 = 21.50' or 258.04"
over real earth: 615 / 27.205 = 22.60' or 271.27"

learn the difference.

I know the difference. The real world difference, at the adjustment stage is noise.

SuperLid

 

[freecell]

LOL!