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Kevin Reid AG6YO ♦
Kevin Reid AG6YO ♦
  • 25k
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  • 55
  • 105

Here is a chart I made. Hope you find it useful. The numbers are approximate and it depends on your exact method of calculation. I use percentages because that information is easier to find or calculate. This chart is the average percentage using the center frequency (I also have numbers related to each band edge). A lot of people quote a "good" or "well designed" or "average" antenna as having about 10% bandwidth, but it varies a LOT with the exact antenna type in use. The "notoriously wide" bands are 160M, 80M, 10M (despite the smaller munbersnumbers), and I would add 6M and 70Cm. 160M 10.55% 80M 13.39% 60M 1.36% 40M 4.2% 30M .49% 20M 2.47% 17M .55% 15M 2.12% 12M .4% 10M 5.9% 6M 7.7% 2M 2.74% 1.75M 2.7% 70Cm 6.9% 33Cm 2.84% 23Cm 4.73%

 160M 10.55%
  80M 13.39%
  60M  1.36%
  40M  4.2%
  30M   .49%
  20M  2.47%
  17M   .55%
  15M  2.12%
  12M   .4%
  10M  5.9%
   6M  7.7%
   2M  2.74%
1.75M  2.7%
 70Cm  6.9%
 33Cm  2.84%
 23Cm  4.73%

Here is a chart I made. Hope you find it useful. The numbers are approximate and it depends on your exact method of calculation. I use percentages because that information is easier to find or calculate. This chart is the average percentage using the center frequency (I also have numbers related to each band edge). A lot of people quote a "good" or "well designed" or "average" antenna as having about 10% bandwidth, but it varies a LOT with the exact antenna type in use. The "notoriously wide" bands are 160M, 80M, 10M (despite the smaller munbers), and I would add 6M and 70Cm. 160M 10.55% 80M 13.39% 60M 1.36% 40M 4.2% 30M .49% 20M 2.47% 17M .55% 15M 2.12% 12M .4% 10M 5.9% 6M 7.7% 2M 2.74% 1.75M 2.7% 70Cm 6.9% 33Cm 2.84% 23Cm 4.73%

Here is a chart I made. Hope you find it useful. The numbers are approximate and it depends on your exact method of calculation. I use percentages because that information is easier to find or calculate. This chart is the average percentage using the center frequency (I also have numbers related to each band edge). A lot of people quote a "good" or "well designed" or "average" antenna as having about 10% bandwidth, but it varies a LOT with the exact antenna type in use. The "notoriously wide" bands are 160M, 80M, 10M (despite the smaller numbers), and I would add 6M and 70Cm.

 160M 10.55%
  80M 13.39%
  60M  1.36%
  40M  4.2%
  30M   .49%
  20M  2.47%
  17M   .55%
  15M  2.12%
  12M   .4%
  10M  5.9%
   6M  7.7%
   2M  2.74%
1.75M  2.7%
 70Cm  6.9%
 33Cm  2.84%
 23Cm  4.73%
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Keith Martineau
Keith Martineau
  • 184
  • 8

Here is a chart I made. Hope you find it useful. The numbers are approximate and it depends on your exact method of calculation. I use percentages because that information is easier to find or calculate. This chart is the average percentage using the center frequency (I also have numbers related to each band edge). A lot of people quote a "good" or "well designed" or "average" antenna as having about 10% bandwidth, but it varies a LOT with the exact antenna type in use. The "notoriously wide" bands are 160M, 80M, 10M (despite the smaller munbers), and I would add 6M and 70Cm. 160M 10.55% 80M 13.39% 60M 1.36% 40M 4.2% 30M .49% 20M 2.47% 17M .55% 15M 2.12% 12M .4% 10M 5.9% 6M 7.7% 2M 2.74% 1.75M 2.7% 70Cm 6.9% 33Cm 2.84% 23Cm 4.73%