Re: [HCDX] AM Radio In Alaska
Hi Paul, I know they are not commercially available. I am interested in building one myself. All the Youtube videos I have watched (about 15 of them) don't show any significant construction details. I am wondering if they can be made to work in the 137, 183 and 475 kHz ham bands and the LF NDB bands. And the videos I've seen show an FSL antenna that is just one coil with coupling to an AM receiver accomplished by proximity. How would I connect one to an SDR receiver that covers this LF range? Zack W9SZ On Fri, Jan 28, 2022 at 11:37 AM Paul B. Walker, Jr. < walkerbroadcast...@gmail.com> wrote: > > Look for it on YouTube. It’s not commercially available. > > > On Fri, Jan 28, 2022 at 8:36 AM Zack Widup wrote: > >> I have not heard of the FSL antenna up till now. Is there a site >> somewhere with construction details? What kind of ferrite rod? (What is the >> best type of material? 61? 77?). Will these work in the LF range? (down to >> 100 kHz)? >> >> Zack W9SZ >> >> On Thu, Jan 27, 2022 at 1:48 PM Paul B. Walker, Jr. < >> walkerbroadcast...@gmail.com> wrote: >> >>> I have 2 5" FSL antennas and they do just that.. one can do reception and >>> one can null. The 5" FSL's out perform box loops 3-4 feet in size. >>> >>> I didnt want to totally null things out in this case, to show an example >>> of >>> what I heard as I heard it >>> >>> Paul >>> >>> On Thu, Jan 27, 2022 at 10:40 AM Rick Kunath via groups.io >> yahoo@groups.io> wrote: >>> >>> > Paul, >>> > >>> > I wonder if a 4-foot box loop (box not spiral, i.e. the NRC design) >>> > would let you null that offending station? You should be able to do >>> that >>> > using a combination of rotation in azimuth and tilting in elevation, >>> > then back and forth to get the null deep enough to take them out. Back >>> > when I had strong locals I was able to do that using that loop. You >>> ahve >>> > to be careful to get the loop balance just right. That's not hard to do >>> > if you follow the directions. And then you get a good really deep null. >>> > >>> > It might be worth a try and you'd have another tool. >>> > >>> > Have you tried tilting and rotating the FSL at all? Assuming the >>> > internal loopstick on the portable doesn't get any of the offending >>> > station. Otherwise nulling is harder. I would think that would work the >>> > same way an air-core loop does. I know the ferrite bar loops I built >>> > back in the day worked that way. >>> > >>> > Rick Kunath, K9AO >>> > >>> > >>> > -=-=-=-=-=-=-=-=-=-=-=- >>> > Groups.io Links: You receive all messages sent to this group. >>> > View/Reply Online (#24786): https://groups.io/g/IRCA/message/24786 >>> > Mute This Topic: https://groups.io/mt/88728025/527171 >>> > -=-=- >>> > Opinions expressed in messages on this mailing list are those of the >>> > original contributors and do not necessarily reflect the opinion of the >>> > IRCA, its editors, publishing staff, or officers >>> > >>> > For more information: http://www.ircaonline.org >>> > -=-=- >>> > Group Owner: irca+ow...@groups.io >>> > Unsubscribe: >>> https://groups.io/g/IRCA/leave/3828619/527171/976508909/xyzzy >>> > [walkerbroadcast...@gmail.com] >>> > -=-=-=-=-=-=-=-=-=-=-=- >>> > >>> > >>> > >>> >> _ >>> Hard-Core-DX mailing list >>> Hard-Core-DX@hard-core-dx.com >>> http://montreal.kotalampi.com/mailman/listinfo/hard-core-dx >>> http://www.hard-core-dx.com/ >>> ___ >>> >>> THE INFORMATION IN THIS ARTICLE IS FREE. It may be copied, distributed >>> and/or modified under the conditions set down in the Design Science >>> License >>> published by Michael Stutz at >>> http://www.gnu.org/licenses/dsl.html >>> >> _ Hard-Core-DX mailing list Hard-Core-DX@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/hard-core-dx http://www.hard-core-dx.com/ ___ THE INFORMATION IN THIS ARTICLE IS FREE. It may be copied, distributed and/or modified under the conditions set down in the Design Science License published by Michael Stutz at http://www.gnu.org/licenses/dsl.html
Re: [HCDX] AM Radio In Alaska
These can’t be connected a reciever. They are inductively coupled. There are construction articles for these online. I’ve copied Gary, the creator of these so maybe he can link to the construction articles. Paul On Sun, Jan 30, 2022 at 7:34 AM Zack wrote: > Hi Paul, > > I know they are not commercially available. I am interested in building > one myself. All the Youtube videos I have watched (about 15 of them) don't > show any significant construction details. I am wondering if they can be > made to work in the 137, 183 and 475 kHz ham bands and the LF NDB bands. > And the videos I've seen show an FSL antenna that is just one coil with > coupling to an AM receiver accomplished by proximity. How would I connect > one to an SDR receiver that covers this LF range? > > Zack W9SZ > > On Fri, Jan 28, 2022 at 11:37 AM Paul B. Walker, Jr. < > walkerbroadcast...@gmail.com> wrote: > >> >> Look for it on YouTube. It’s not commercially available. >> >> >> On Fri, Jan 28, 2022 at 8:36 AM Zack Widup wrote: >> >>> I have not heard of the FSL antenna up till now. Is there a site >>> somewhere with construction details? What kind of ferrite rod? (What is the >>> best type of material? 61? 77?). Will these work in the LF range? (down to >>> 100 kHz)? >>> >>> Zack W9SZ >>> >>> On Thu, Jan 27, 2022 at 1:48 PM Paul B. Walker, Jr. < >>> walkerbroadcast...@gmail.com> wrote: >>> I have 2 5" FSL antennas and they do just that.. one can do reception and one can null. The 5" FSL's out perform box loops 3-4 feet in size. I didnt want to totally null things out in this case, to show an example of what I heard as I heard it Paul On Thu, Jan 27, 2022 at 10:40 AM Rick Kunath via groups.io >>> yahoo@groups.io> wrote: > Paul, > > I wonder if a 4-foot box loop (box not spiral, i.e. the NRC design) > would let you null that offending station? You should be able to do that > using a combination of rotation in azimuth and tilting in elevation, > then back and forth to get the null deep enough to take them out. Back > when I had strong locals I was able to do that using that loop. You ahve > to be careful to get the loop balance just right. That's not hard to do > if you follow the directions. And then you get a good really deep null. > > It might be worth a try and you'd have another tool. > > Have you tried tilting and rotating the FSL at all? Assuming the > internal loopstick on the portable doesn't get any of the offending > station. Otherwise nulling is harder. I would think that would work the > same way an air-core loop does. I know the ferrite bar loops I built > back in the day worked that way. > > Rick Kunath, K9AO > > > -=-=-=-=-=-=-=-=-=-=-=- > Groups.io Links: You receive all messages sent to this group. > View/Reply Online (#24786): https://groups.io/g/IRCA/message/24786 > Mute This Topic: https://groups.io/mt/88728025/527171 > -=-=- > Opinions expressed in messages on this mailing list are those of the > original contributors and do not necessarily reflect the opinion of the > IRCA, its editors, publishing staff, or officers > > For more information: http://www.ircaonline.org > -=-=- > Group Owner: irca+ow...@groups.io > Unsubscribe: https://groups.io/g/IRCA/leave/3828619/527171/976508909/xyzzy > [walkerbroadcast...@gmail.com] > -=-=-=-=-=-=-=-=-=-=-=- > > > >>> _ Hard-Core-DX mailing list Hard-Core-DX@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/hard-core-dx http://www.hard-core-dx.com/ ___ THE INFORMATION IN THIS ARTICLE IS FREE. It may be copied, distributed and/or modified under the conditions set down in the Design Science License published by Michael Stutz at http://www.gnu.org/licenses/dsl.html >>> _ Hard-Core-DX mailing list Hard-Core-DX@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/hard-core-dx http://www.hard-core-dx.com/ ___ THE INFORMATION IN THIS ARTICLE IS FREE. It may be copied, distributed and/or modified under the conditions set down in the Design Science License published by Michael Stutz at http://www.gnu.org/licenses/dsl.html
Re: [HCDX] AM Radio In Alaska
Look for it on YouTube. It’s not commercially available. On Fri, Jan 28, 2022 at 8:36 AM Zack Widup wrote: > I have not heard of the FSL antenna up till now. Is there a site somewhere > with construction details? What kind of ferrite rod? (What is the best type > of material? 61? 77?). Will these work in the LF range? (down to 100 kHz)? > > Zack W9SZ > > On Thu, Jan 27, 2022 at 1:48 PM Paul B. Walker, Jr. < > walkerbroadcast...@gmail.com> wrote: > >> I have 2 5" FSL antennas and they do just that.. one can do reception and >> one can null. The 5" FSL's out perform box loops 3-4 feet in size. >> >> I didnt want to totally null things out in this case, to show an example >> of >> what I heard as I heard it >> >> Paul >> >> On Thu, Jan 27, 2022 at 10:40 AM Rick Kunath via groups.io > yahoo@groups.io> wrote: >> >> > Paul, >> > >> > I wonder if a 4-foot box loop (box not spiral, i.e. the NRC design) >> > would let you null that offending station? You should be able to do that >> > using a combination of rotation in azimuth and tilting in elevation, >> > then back and forth to get the null deep enough to take them out. Back >> > when I had strong locals I was able to do that using that loop. You ahve >> > to be careful to get the loop balance just right. That's not hard to do >> > if you follow the directions. And then you get a good really deep null.. >> > >> > It might be worth a try and you'd have another tool. >> > >> > Have you tried tilting and rotating the FSL at all? Assuming the >> > internal loopstick on the portable doesn't get any of the offending >> > station. Otherwise nulling is harder. I would think that would work the >> > same way an air-core loop does. I know the ferrite bar loops I built >> > back in the day worked that way. >> > >> > Rick Kunath, K9AO >> > >> > >> > -=-=-=-=-=-=-=-=-=-=-=- >> > Groups.io Links: You receive all messages sent to this group. >> > View/Reply Online (#24786): https://groups.io/g/IRCA/message/24786 >> > Mute This Topic: https://groups.io/mt/88728025/527171 >> > -=-=- >> > Opinions expressed in messages on this mailing list are those of the >> > original contributors and do not necessarily reflect the opinion of the >> > IRCA, its editors, publishing staff, or officers >> > >> > For more information: http://www.ircaonline.org >> > -=-=- >> > Group Owner: irca+ow...@groups.io >> > Unsubscribe: >> https://groups.io/g/IRCA/leave/3828619/527171/976508909/xyzzy >> > [walkerbroadcast...@gmail.com] >> > -=-=-=-=-=-=-=-=-=-=-=- >> > >> > >> > >> > _ >> Hard-Core-DX mailing list >> Hard-Core-DX@hard-core-dx.com >> http://montreal.kotalampi.com/mailman/listinfo/hard-core-dx >> http://www.hard-core-dx.com/ >> ___ >> >> THE INFORMATION IN THIS ARTICLE IS FREE. It may be copied, distributed >> and/or modified under the conditions set down in the Design Science >> License >> published by Michael Stutz at >> http://www.gnu.org/licenses/dsl.html >> > _ Hard-Core-DX mailing list Hard-Core-DX@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/hard-core-dx http://www.hard-core-dx.com/ ___ THE INFORMATION IN THIS ARTICLE IS FREE. It may be copied, distributed and/or modified under the conditions set down in the Design Science License published by Michael Stutz at http://www.gnu.org/licenses/dsl.html
[HCDX] AM Radio In Alaska
I've shared my DX clips from well outside Alaska, but I wanted to show just how far AM's in Alaska carry and how good the signals can be. Thought you'd like to hear these clips. I've heard ALL AM's in Alaska, but one.. KTKN 930 which is blocked by KNSA 930 Unalakleet here, only 180 miels away with 5KW non directional 24/7 KZPA 900 Fort Yukon, Alaska isnt owned by KSKO, but simulcasts us a good portion of the day. 5KW Non D from 350 miles away NE of us . I recorded this clip this morning during the KSKO morning show. 6khz audio on my radio, STL is a 128K stereo mp3 stream. Audio: https://drive.google.com/file/d/1NhLxMAtt_NnkbWsWPKbnQkyhfZAnNM8s/view?usp=sharing KLAM 1450 is 250 watts from about 350 miles away, SE of us. The whine/het you hear is from Iran with 400kw. KLAM is owned by a guy who is the morning news anchor for a Fairbanks TV station and he's originally from Cordova. Audio: https://drive.google.com/file/d/14tsJFnYQIiH7ST1MCRttB3rhKnl_K4mP/view?usp=sharing KCAM-AM 790 Glennallen, Alaska. 5KW Non D 24/7 from about 320 miles away. Audio: https://drive.google.com/file/d/1K75qEVUyN_XaS0Sk8WFs3K6M2KHKKgf9/view?usp=sharing KCHU-AM 770 Valdez, Alaska 10KW Non D 24/7 from about 315 miles away. Audio: https://drive.google.com/file/d/1Zp4_ctOBuXKIw3tBpn-DfogWvp7wG_6Z/view?usp=sharing Location: McGrath, Alaska Radio: CCrane Skywave Non SSB Model Antenna: DeBock 5" FSL tunable AM "loop" _ Hard-Core-DX mailing list Hard-Core-DX@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/hard-core-dx http://www.hard-core-dx.com/ ___ THE INFORMATION IN THIS ARTICLE IS FREE. It may be copied, distributed and/or modified under the conditions set down in the Design Science License published by Michael Stutz at http://www.gnu.org/licenses/dsl.html
