Yep, flamethrower of No. Cal. The groundwave coverage is amazing. Imagine how big that thing would be if they were on 580 instead of 1530 :^)
Ken K6MR From: donov...@starpower.net<mailto:donov...@starpower.net> Sent: Sunday, February 12, 2017 9:07 PM To: elecraft@mailman.qth.net<mailto:elecraft@mailman.qth.net> Subject: Re: [Elecraft] EFHW There are excellent photos and a description of the KFBK Franklin array here: https://www.fybush.com/sites/2005/site-051028.html 73 Frank W3LPL ----- Original Message ----- From: "Fred Jensen" <k6...@foothill.net> To: elecraft@mailman.qth.net Sent: Monday, February 13, 2017 3:56:33 AM Subject: Re: [Elecraft] EFHW KFBK in Sacramento uses [or used, my info is a few years old] a center-fed half-wave vertical ["Franklin"] antenna, said to be the only one left. It's ... interesting. [:-) KFBK is also the originator of the first out-phasing BC TX which became the RCA Ampliphase [or Amplifuzz if you ever had to get one to pass PoP]. KFBK is also the radio birthplace of Rush, "Bloviator in Chief," although that's probably far less important than the Franklin. There was a radial field under the Franklin, it may have rusted into oblivion by now, I'm not sure it was all that important, it's located in the flood plain north of Sacramento ... moderately wet, they grow rice in the area. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 2/12/2017 5:31 PM, Jim Brown wrote: > 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. > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k6...@foothill.net > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donov...@starpower.net ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k...@outlook.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
