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Hi Wayne,
If we're connecting the random wire and counterpoise directly to the kx2 or Kx3 bnc via the binding post adapter is a 9:1 an improvement or is the tuner able to drive it directly just the same? Thanks and Regards, Brian ve3bwp Message: 17 Date: Sun, 29 Jan 2017 18:52:26 -0800 From: Wayne Burdick <[hidden email]> To: Jeff Crilly <[hidden email]> Cc: "[hidden email]" <[hidden email]>, Elecraft Reflector <[hidden email]>, Tom McCulloch <[hidden email]> Subject: Re: [Elecraft] [KX3] The "Kinda Random Antenna" (was: Random wire lengths for antennas) Message-ID: <[hidden email]> Content-Type: text/plain; charset=us-ascii Have you tried this with a low-power balun mounted right at the antenna jack? That will often help with RFI issues. Wayne N6KR On Jan 29, 2017, at 6:03 PM, Jeff Crilly <[hidden email]> wrote: > So I tried this out... using a ~26 foot wire ... ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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Hi Wayne,
If we're connecting the random wire and counterpoise directly to the kx2 or Kx3 bnc via the binding post adapter is a 9:1 an improvement or is the tuner able to drive it directly just the same? Thanks and Regards, Brian ve3bwp > Message: 17 > Date: Sun, 29 Jan 2017 18:52:26 -0800 > From: Wayne Burdick <[hidden email]> > To: Jeff Crilly <[hidden email]> > Cc: "[hidden email]" <[hidden email]>, Elecraft Reflector > <[hidden email]>, Tom McCulloch <[hidden email]> > Subject: Re: [Elecraft] [KX3] The "Kinda Random Antenna" (was: Random > wire lengths for antennas) > Message-ID: <[hidden email]> > Content-Type: text/plain; charset=us-ascii > > Have you tried this with a low-power balun mounted right at the antenna jack? That will often help with RFI issues. > > Wayne > N6KR > >> On Jan 29, 2017, at 6:03 PM, Jeff Crilly <[hidden email]> wrote: >> >> So I tried this out... using a ~26 foot wire ... Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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This will vary from one installation to the next.
When I'm not traveling ultralight, I carry a BL2 balun with me. The BL2 has a 4:1 / 1:1 switch so you can try both positions. This will almost always expand the range of bands you can cover with a given ad-hoc antenna. As noted, the balun also tends to reduce RFI on the enclosure and mic. 73, Wayne N6KR On Jan 29, 2017, at 10:23 PM, Brian “VE3BWP” Pietrzyk <[hidden email]> wrote: > Hi Wayne, > > If we're connecting the random wire and counterpoise directly to the kx2 or Kx3 bnc via the binding post adapter is a 9:1 an improvement or is the tuner able to drive it directly just the same? > > Thanks and Regards, > > Brian ve3bwp > >> Message: 17 >> Date: Sun, 29 Jan 2017 18:52:26 -0800 >> From: Wayne Burdick <[hidden email]> >> To: Jeff Crilly <[hidden email]> >> Cc: "[hidden email]" <[hidden email]>, Elecraft Reflector >> <[hidden email]>, Tom McCulloch <[hidden email]> >> Subject: Re: [Elecraft] [KX3] The "Kinda Random Antenna" (was: Random >> wire lengths for antennas) >> Message-ID: <[hidden email]> >> Content-Type: text/plain; charset=us-ascii >> >> Have you tried this with a low-power balun mounted right at the antenna jack? That will often help with RFI issues. >> >> Wayne >> N6KR >> >> On Jan 29, 2017, at 6:03 PM, Jeff Crilly <[hidden email]> wrote: >> >>> So I tried this out... using a ~26 foot wire ... ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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Hi Wayne, thanks for this. I see the advantage now that I see the schematic for the BL2 (although the switch is not shown in the circuit). The common mode to differential mode isolation right at the BNC connector alone could help out.
OK this is on my list to pick up when I see you next at Dayton. > On Jan 30, 2017, at 1:54 PM, Wayne Burdick <[hidden email]> wrote: > > This will vary from one installation to the next. > > When I'm not traveling ultralight, I carry a BL2 balun with me. The BL2 has a 4:1 / 1:1 switch so you can try both positions. This will almost always expand the range of bands you can cover with a given ad-hoc antenna. As noted, the balun also tends to reduce RFI on the enclosure and mic. > > 73, > Wayne > N6KR > > > > On Jan 29, 2017, at 10:23 PM, Brian “VE3BWP” Pietrzyk <[hidden email] <mailto:[hidden email]>> wrote: > >> Hi Wayne, >> >> If we're connecting the random wire and counterpoise directly to the kx2 or Kx3 bnc via the binding post adapter is a 9:1 an improvement or is the tuner able to drive it directly just the same? >> >> Thanks and Regards, >> >> Brian ve3bwp >> >>> Message: 17 >>> Date: Sun, 29 Jan 2017 18:52:26 -0800 >>> From: Wayne Burdick <[hidden email] <mailto:[hidden email]>> >>> To: Jeff Crilly <[hidden email] <mailto:[hidden email]>> >>> Cc: "[hidden email] <mailto:[hidden email]>" <[hidden email] <mailto:[hidden email]>>, Elecraft Reflector >>> <[hidden email] <mailto:[hidden email]>>, Tom McCulloch <[hidden email] <mailto:[hidden email]>> >>> Subject: Re: [Elecraft] [KX3] The "Kinda Random Antenna" (was: Random >>> wire lengths for antennas) >>> Message-ID: <[hidden email] <mailto:[hidden email]>> >>> Content-Type: text/plain; charset=us-ascii >>> >>> Have you tried this with a low-power balun mounted right at the antenna jack? That will often help with RFI issues. >>> >>> Wayne >>> N6KR >>> >>> On Jan 29, 2017, at 6:03 PM, Jeff Crilly <[hidden email] <mailto:[hidden email]>> wrote: >>> >>>> So I tried this out... using a ~26 foot wire ... > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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