[Elecraft] EFHW

[Ron D'Eau Claire]

That's correct Jim. I meant close to 90 degrees (1/4 wavelength). Some of
the "big guns" do have 1/2 wave tall antennas, but most are near 1/4 wave
tall. 

Tnx for catching that. 

73, Ron AC7AC

-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Jim
Brown
Sent: Sunday, February 12, 2017 5:31 PM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] EFHW

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.


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