[Lowfer] lowfer KE

KA4SEY ka4sey at gmail.com
Fri Jan 22 09:49:21 EST 2021


Doug,It seems like it's working good. I'm in the process of building an E-probe antenna, by W5JGV. It is about 100 feet from ctySent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: Douglas Williams <williamsdoug1966 at gmail.com> Date: 1/22/21  9:43 AM  (GMT-05:00) To: "Discussion of the Lowfer (US, European, & UK) and MedFer bands" <lowfer at mailman.qth.net> Subject: Re: [Lowfer] lowfer KE LOL!Kidding aside, KA4SEY, I use an active whip in the backyard and thereceiver currently in use is a Kenwood TS-890, which I purchased last year.Prior to that, I used an ICOM R-75 and a Winradio SDR, which both performedwell.The trick to using active whips for LF reception is you have to get themphysically away from noise sources, the biggest of which, most of the time,is the very house you live in. Common mode chokes on the coax out to theantenna can also help. For a receiver, you want one that is sensitive atLF, and has good IMD characteristics. Also helpful are a frequency readoutto 1Hz, and narrow CW filters (if you plan to hunt beacons aurally).In the past I have used, with success, an active loop and my old amateurradio dipole with a tuner that I copied from an old Burhans article. Ididn't like having to fool with a rotator, and the ham dipole picked up alot of noise at my QTH.Do you have anything to receive LF with? If you live near beacon KE, thatmight be problematic.-DougOn Thu, Jan 21, 2021 at 9:33 PM John Hamer <wilbur0611 at gmail.com> wrote:> I had one of those when I was a kid.  It was inside a teddy ruxpin stuffed> bear.>> On Thu, Jan 21, 2021, 9:21 PM Douglas Williams <williamsdoug1966 at gmail.com> >> wrote:>> > On Thu, Jan 21, 2021 at 6:27 PM KA4SEY <ka4sey at gmail.com> wrote:> >> > > Nice captures Doug, Im glad it started coming in. What's your recieve> > > setup consist of? It seems like it works pretty well. Thanks.Kasey,> > KA4SEY> > >> >> > I use a phased e-probe/magnetic loop/random wire antenna fed into a> > homebrew quadruple superheterodyne direct downconversion receiver with> > diversity tuning, similar to what Jay uses with his ONION network.> >> > John Davis could probably explain it better.> >> > 73, Doug WB4DW> > ______________________________________________________________> > Lowfer mailing list> > Home: http://mailman.qth.net/mailman/listinfo/lowfer> > Help: http://mailman.qth.net/mmfaq.htm> > Post: mailto:Lowfer at mailman.qth.net> > Post must be less than 50KB total for message plus attachment!> >> > This list hosted by: http://www.qsl.net> > Please help support this email list: http://www.qsl.net/donate.html> >> ______________________________________________________________> Lowfer mailing list> Home: http://mailman.qth.net/mailman/listinfo/lowfer> Help: http://mailman.qth.net/mmfaq.htm> Post: mailto:Lowfer at mailman.qth.net> Post must be less than 50KB total for message plus attachment!>> This list hosted by: http://www.qsl.net> Please help support this email list: http://www.qsl.net/donate.html>______________________________________________________________Lowfer mailing listHome: http://mailman.qth.net/mailman/listinfo/lowferHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:Lowfer at mailman.qth.netPost must be less than 50KB total for message plus attachment!This list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.html


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