Antenna plots
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| Jun 10th 2016, 00:38 | |
mikehTotal Topics: 0 Total Posts: 0 |
Can anyone describe how to read an antenna polar plot diagram? I am pretty new to all of this. I understand the basic look of the thing, but don't understand why the dB start at negative 30 dB and go out to 0 dB. I'm reading through the ARRL book and it doesn't explain it at all; and surprisingly the internet is no help. Thanks. |
| Jun 10th 2016, 00:48 | |
W1VTSuper Moderator Total Topics: 0 Total Posts: 0 |
Jul 1980 - QST (Pg. 26) New Look For QST's Antenna Patterns, The Author: Hall, Jerry, K1TD Article: http://p1k.arrl.org/pubs_archive/73749 |
| Jun 10th 2016, 21:30 | |
mikehTotal Topics: 0 Total Posts: 0 |
So the values on the chart are only applied where the concentric circles meet the plotted lines? e.g.- the 0 db straight out, the -2 db line meets at 30 deg off of the centerline, -4 at 40 deg, -20 db at 80 deg, etc? |
| Jun 11th 2016, 02:47 | |
W1VTSuper Moderator Total Topics: 0 Total Posts: 0 |
Yes, though I see the intersections at 45 degrees for -4 and 82 for -20. Zack W1VT |
| Jun 11th 2016, 17:54 | |
mikehTotal Topics: 0 Total Posts: 0 |
Ok, thanks so much for the help. |
Displaying 1-5 of 5
