[Elecraft] EFHW

[Jim Brown]

Not true, Ron. Most AM broadcast transmitting antennas are in the range 
of 80-90 electrical degrees (a quarter wave).  Nearly all of the Class I 
clear channel stations use antennas that are at least 180 electrical 
degrees. You can see this data for any US station at

https://www.fcc.gov/media/radio/am-query

WLW's tower is 189.3 degrees.  So is WLS.  WGN is 195 degrees. WBZ uses 
an array of four towers that are 188.5 degrees.  WIND on 560 kHz near 
Chicago, has an array of four 100 degree towers. The station where I 
worked in my home town has an array of four 82 degree towers.  And so on.

73, Jim K9YC

On Sun,2/12/2017 9:13 AM, Ron D'Eau Claire wrote:
> Most BCB (0.5 to 1.6 MHz) antennas are 1/8 wavelength high (or less) which necessitates an extensive ground system.