In your ARRL Antenna Handbook....you DO have one
of these... right?.... Check
1) pages 4-7 and following for EZNEC modeling information
2) pages 6-11 and following for a discussion of the construction
and application performance of horizontal antennas for
low bands.
3) page 4-4 on the flattop geometry and output patterns
4) Chapters 6 and 7 generally regarding wire antennas
5) Chapter 26 has various topics on what feed line to use,
specifically page 26-4 on open wire vs coax cable feed line
and pages 26-18 an 19 regarding symmetrical and asymmetrical
coax feed lines
The difficulty in giving a more specific localized question is there are
many variables involved.. including such things as :
* Do you want it to be single or multi-band in operation?
* Do you want it for local or DX contacts or a little of both?
* How high can you put it?
* What is nearby - environmental metal and structures?
* How far is it to the antenna from the shack?
* Resonant or non-resonant antenna?
* Power?
* Using a tuner?
* Cost analysis and your budget?
* Baluns-Transformers-current chokes-isolation transformers-, etc?
* Metal vs non-metal and other dielectric materials for supports?
* Directionality desired or not?
* Bands to be worked - sometimes it matters how high,
long, close to other objects, etc. - some bands are
tricky and others not.... I guess... that is what the book
indicates...
Happy trails.
==================== K8JHR =====================
Jim WB5OXQ inb Waco, TX wrote:
> For a 1/2 wave dipole which is better;
> flat top or inverted v?
> feed it with coax or a ballanced line (ladder, window, etc)?
> How high above ground is optimum? Is higher better if over 1/4 wave?
> WB5OXQ
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