Re: Wiki of Links
Paul Blundell
If anybody has any good links for this, please send them to me. I would love to update this and have a good list moving forward.
-- Paul - Moderator UltralightDX
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Re: [nrc-am] Re: [irca] Seattle Convention Schedule
Tony Magon
Thanks for that Nick - and will be interested in seeing the 2019 presentation on the site 73 Tony VK2IC
On Mon, Aug 26, 2019 at 2:58 PM Nick Hall-Patch <nhp@...> wrote:
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Re: [nrc-am] Re: [irca] Seattle Convention Schedule
Nick Hall-Patch
The presentations from conventions go back to 2014:
toggle quoted messageShow quoted text
http://durenberger.com/DXPAGE.htm Thanks to Mark Durenberger. There's generally a notice about uploads after the conventions, then presumably everyone forgets about it, hi. best wishes, Nick At 03:58 2019-08-26, MarkWA1ION via Groups.Io wrote:
PDF's of the presentation documents should go online for the benefit of hobbyists around the world.
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Re: [nrc-am] Re: [irca] Seattle Convention Schedule
Paul Blundell
I am happy to share this on my blog and assist with this Paul
On Mon, 26 Aug 2019, 1:58 p.m. MarkWA1ION via Groups.Io, <MarkWA1ION=aol.com@groups.io> wrote:
--
Paul - Moderator UltralightDX
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Re: [nrc-am] Re: [irca] Seattle Convention Schedule
MarkWA1ION
PDF's of the presentation documents should go online for the benefit of hobbyists around the world.
Mark
-----Original Message-----
From: Les Rayburn <les@...> To: markwa1ion@... <markwa1ion@...> Cc: IRCA <IRCA@groups.io>; UltralightDX <UltralightDX@groups.io>; nrc-am <nrc-am@...>; mw-dx <mw-dx@groups.io> Sent: Sun, Aug 25, 2019 11:41 pm Subject: Re: [nrc-am] Re: [irca] Seattle Convention Schedule Can’t make it to the convention this year—but would love to see this presentation. Any chance of sharing the materials afterwards? Even better-could someone videotape the presentation and provide a link?
This technology is really adding a lot to the hobby. Thanks to all who are spearheading the effort.
73,
Les Rayburn, N1LF 121 Mayfair Park Maylene, AL 35114 EM63nf Member WTFDA, IRCA, NRC. Former CPC Chairman for NRC & IRCA. Elad FDM-S2 SDR, AirSpy SDR2, SDRPlay RSP-2 Pro, Sony XDR-F1HD [XDR Guy Modified], Dennon TU-1500RD, Sangean HDT-1X, Ray Dees RDS Decoders, Korner 9.2 Antenna, FM-6 Antenna, Kitz Technologies KT-501 Pre-amps, Quantum Phaser, Wellbrook ALA1530 Loop, Wellbrook Flag, Clifton Labs Active Whip. “Nothing but blues and Elvis, and somebody else’s favorite song…”
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Re: [nrc-am] Re: [irca] Seattle Convention Schedule
Les Rayburn
Can’t make it to the convention this year—but would love to see this presentation. Any chance of sharing the materials afterwards? Even better-could someone videotape the presentation and provide a link?
toggle quoted messageShow quoted text
This technology is really adding a lot to the hobby. Thanks to all who are spearheading the effort. 73,
Les Rayburn, N1LF 121 Mayfair Park Maylene, AL 35114 EM63nf Member WTFDA, IRCA, NRC. Former CPC Chairman for NRC & IRCA. Elad FDM-S2 SDR, AirSpy SDR2, SDRPlay RSP-2 Pro, Sony XDR-F1HD [XDR Guy Modified], Dennon TU-1500RD, Sangean HDT-1X, Ray Dees RDS Decoders, Korner 9.2 Antenna, FM-6 Antenna, Kitz Technologies KT-501 Pre-amps, Quantum Phaser, Wellbrook ALA1530 Loop, Wellbrook Flag, Clifton Labs Active Whip. “Nothing but blues and Elvis, and somebody else’s favorite song…”
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Re: [irca] Seattle Convention Schedule
MarkWA1ION
If the collaborators on the Phasing talk could send me a draft of their presentation (PowerPoint or Word presumably), I would be happy to supply comments that could form an addendum.
I would touch on the different requirements, e.g. broadband - driven by SDR spectrum capture, of today's phaser applications versus the one-frequency-at-a-time version that got going when Gordon Nelson first brought Beverage phasing to the MW DX hobby in the late '60s.
Mark Connelly, WA1ION
South Yarmouth, MA
-----Original Message-----
From: Phil Bytheway via Groups.Io <phil_tekno@...> To: IRCA@groups.io <IRCA@groups.io>; UltralightDX@groups.io <UltralightDX@groups.io>; nrc-am@... <nrc-am@...>; mw-dx@groups.io <mw-dx@groups.io> Sent: Sun, Aug 25, 2019 10:33 pm Subject: [irca] Seattle Convention Schedule Here it is!! Feel free to post this to any other eGroup that might be interested.
Thursday, September 5 2019
Guests arrive by air, train, bus, and cars (hotel provides shuttle van) Courtyard by Marriott Seattle Southcenter, 400 Andover Park W, Tukwila WA 98188 800-321-2211 or 206-575-2500. 4:00P Registration in Lobby. HOSTS: Mike Sanburn, Bruce Portzer. 6:00P Dinner on your own at near-by restaurants (possible group meal at Outback) 5-9PM Museum of Flight FREE night, only 10 minutes from the convention Friday, September 6 2019 9:00A Meeting room opens 10:00+ Depart for KIRO tour (tour is at 11 AM) 1:00P KNHC tour (student run FM station) 5:00P Dinner Break 6:30P Transmitter sites - Ben Dawson Over the Pole DXing, What a Difference a Year Makes - Nick Hall-Patch DXing from Japan - Satoshi Miyauchi/Hiroo Nakagawa Rockworks' Greatest hits - Tom Rothlisberger Life as a DXer/group - Pat Martin group DXcussion 10:00P Good night (meeting room closes) Saturday, September 7 2019 9:00A Innovative Ferrite Antennas - Gary DeBock Antenna phasing, an Introduction, by moderator, Bill Whitacre and Nick Hall-Patch Fixed Phasers For Pairs of Antennas - Dave Aichelman Phasing Backyard Antennas - Nick Hall-Patch 11:30A Lunch Break 1:00P Social time, plus outside (weather permitting) informal demonstration of antenna arrays and techniques - Gary DeBock/Guy Atkins/Nick Hall-Patch 4:00P IRCA Business Meeting - Bruce Portzer 4:45P Group picture - gather in lobby 5:00P Gathering for banquet at Claim Jumper (on your own funds) 5:30P Leave for banquet 6:00P Banquet at Claim Jumper 8:00P Auction in the meeting room – auctioneers TBD 10:00P Good night (meeting room closes) - see you next year! Sunday, September 8 2019 No events planned, random gatherings with folks waiting to leave I will have some free passes to the Museum of Flight should anyone want to go there. There will also be a DXpedition to Grayland WA after the convention, starting Sunday night. See Bruce Portzer for details. Phil Bytheway
IRCA's "DX Monitor" Editor-in-Chief Seattle WA Drake R-7 / KIWA Loop
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Seattle Convention Schedule
Phil Bytheway <phil_tekno@...>
Here it is!! Feel free to post this to any other eGroup that might be interested. Thursday, September 5 2019 Guests arrive by air, train, bus, and cars (hotel provides shuttle van) Courtyard by Marriott Seattle Southcenter, 400 Andover Park W, Tukwila WA 98188 800-321-2211 or 206-575-2500. 4:00P Registration in Lobby. HOSTS: Mike Sanburn, Bruce Portzer. 6:00P Dinner on your own at near-by restaurants (possible group meal at Outback) 5-9PM Museum of Flight FREE night, only 10 minutes from the convention Friday, September 6 2019 9:00A Meeting room opens 10:00+ Depart for KIRO tour (tour is at 11 AM) 1:00P KNHC tour (student run FM station) 5:00P Dinner Break 6:30P Transmitter sites - Ben Dawson Over the Pole DXing, What a Difference a Year Makes - Nick Hall-Patch DXing from Japan - Satoshi Miyauchi/Hiroo Nakagawa Rockworks' Greatest hits - Tom Rothlisberger Life as a DXer/group - Pat Martin group DXcussion 10:00P Good night (meeting room closes) Saturday, September 7 2019 9:00A Innovative Ferrite Antennas - Gary DeBock Antenna phasing, an Introduction, by moderator, Bill Whitacre and Nick Hall-Patch Fixed Phasers For Pairs of Antennas - Dave Aichelman Phasing Backyard Antennas - Nick Hall-Patch 11:30A Lunch Break 1:00P Social time, plus outside (weather permitting) informal demonstration of antenna arrays and techniques - Gary DeBock/Guy Atkins/Nick Hall-Patch 4:00P IRCA Business Meeting - Bruce Portzer 4:45P Group picture - gather in lobby 5:00P Gathering for banquet at Claim Jumper (on your own funds) 5:30P Leave for banquet 6:00P Banquet at Claim Jumper 8:00P Auction in the meeting room – auctioneers TBD 10:00P Good night (meeting room closes) - see you next year! Sunday, September 8 2019 No events planned, random gatherings with folks waiting to leave I will have some free passes to the Museum of Flight should anyone want to go there. There will also be a DXpedition to Grayland WA after the convention, starting Sunday night. See Bruce Portzer for details. Phil Bytheway IRCA's "DX Monitor" Editor-in-Chief Seattle WA Drake R-7 / KIWA Loop
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Re: Best of my Ultralight DXing Photos
radiojayallen
Paul,
Nice shots Thanks for sharing. Jay
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Best of my Ultralight DXing Photos
Paul Blundell
I have spent some time of late not being as active but instead sorting and arranging my files. As a part of this I have put together a "best of" collection of my ultralight radio photos.
https://ultralightradiodxingtasmania.blogspot.com/2019/08/best-of-ultralight-dxing-photos.html
-- Paul - Moderator UltralightDX
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Re: 7.5” Loopstick LW antenna not enough inductance?
<<< I should add that my coil is wound with 175/46 Litz, perhaps a little smaller diameter than the specified 100/44 Litz. I've found it works even better at LF, in fact I've found all the types of /46 Litz work better at LF than /44 Litz.
Steve >>>
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Re: 7.5” Loopstick LW antenna
Hello Igvitk (and Steve),
<<< I’m trying to make the 7.5” loopstick LW antenna according to the instructions. I used the Amidon R33-050-750 rod, 100/44 litz wire, made 122 turns of the coil, which is located exactly in the center of the rod and which length is 106,5 mm. However, the output inductance measured by the multimeter is only 1432 uh instead of 1700 uh. The similar result was shown by another multimeter VICY DM4070. I think that is a strong deviation. Can anybody explain how to solve this problem? >>> As Steve has explained, the specified 1700 uH is not an essential inductance value, and there are variations in the inductance of ferrite rods and Liz wire, even among the same manufacturer. The important thing is to have enough inductance to make your loopstick provide good sensitivity on your chosen Longwave frequencies, and in order to do this you need a lot more inductance than what SiLabs recommends for Medium Wave (180-450 uH). Your 1432 uH inductance should be fine for most of the Longwave frequencies, unless you wish to concentrate on chasing the LWBC stations from Europe and Africa on the lower edge of the band, in which case you may wish to add a few more coil turns to raise the inductance up a little. For NDB chasing you should already be OK with the 1432 uH. Originally five test models were made up for the Longwave loopstick design project, and they were all compared on different Longwave frequencies using a Tecsun PL-360 plug-in system. Full details are contained in the article posted at http://www.mediafire.com/file/845snah2h4ek9z9/7.5inLWLS.doc/file 73, Gary DeBock (in Puyallup, WA, USA)
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Re: 7.5” Loopstick LW antenna not enough inductance?
Steve Ratzlaff
I should add that my coil is wound with 175/46 Litz, perhaps a little smaller diameter than the specified 100/44 Litz. I've found it works even better at LF, in fact I've found all the types of /46 Litz work better at LF than /44 Litz. Steve On 8/22/2019 10:47 AM, Steve Ratzlaff
via Groups.Io wrote:
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Re: 7.5” Loopstick LW antenna not enough inductance?
Steve Ratzlaff
Curious, I unsoldered my R33 LF coil and measured it--1546 uH at 100 kHz test frequency--so mine isn't close to 1700 uH either, yet mine will tune down to at least 200 kHz with my PL 380 ULR. Here in USA there are no LWBC stations to be heard so I try for NDBs, which only go down as far as 198 kHz (DIW in North Carolina, a powerful NDB). So I guess your R33 rod has even less permeability than mine, and the 1432 uH is probably correct. If you can rewind it with more turns, that's what I'd suggest doing. It wouldn't matter if turns on the end were under the rod support, that wouldn't affect the rod's pickup. 73, Steve AA7U On 8/22/2019 9:58 AM, igvitk@...
wrote:
Hi all! I’m trying to make the 7.5” loopstick LW antenna according to the instructions. I used the Amidon R33-050-750 rod, 100/44 litz wire, made 122 turns of the coil, which is located exactly in the center of the rod and which length is 106,5 mm. However, the output inductance measured by the multimeter is only 1432 uh instead of 1700 uh. The similar result was shown by another multimeter VICY DM4070. I think that is a strong deviation. Can anybody help to resolve this problem?
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Re: 7.5” Loopstick LW antenna low inductance problem
Steve Ratzlaff
Assuming you're using a real R33 rod, which if you bought it from
Amidon, is most likely the case, then it sounds like maybe your
rod's permeability is lower than other R33 rods, and that other
than rewinding and putting on more turns, you're stuck with this
inductance. I realize the rods are very expensive ($20 here in the
USA, plus shipping) so you probably wouldn't buy another one just
to see if it gives more inductance. Depending on how low you want
to tune in LF you may be able to get by with this lower inductance
rod and coil. So you may want to just put it on the radio and see
how low your particular radio's SiLab's IC tuning will go--maybe
you'll get lucky and it will tune low enough. 73, Steve AA7U On 8/22/2019 9:58 AM, igvitk@...
wrote:
Hi all! I’m trying to make the 7.5” loopstick LW antenna according to the instructions. I used the Amidon R33-050-750 rod, 100/44 litz wire, made 122 turns of the coil, which is located exactly in the center of the rod and which length is 106,5 mm. However, the output inductance measured by the multimeter is only 1432 uh instead of 1700 uh. The similar result was shown by another multimeter VICY DM4070. I think that is a strong deviation. Can anybody help to resolve this problem?
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7.5” Loopstick LW antenna
Hi all! I’m trying to make the 7.5” loopstick LW antenna according to the instructions. I used the Amidon R33-050-750 rod, 100/44 litz wire, made 122 turns of the coil, which is located exactly in the center of the rod and which length is 106,5 mm. However, the output inductance measured by the multimeter is only 1432 uh instead of 1700 uh. The similar result was shown by another multimeter VICY DM4070. I think that is a strong deviation. Can anybody explain how to solve this problem?
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Re: Top Twelve South Pacific Signals to the Rockwork Cliff (August 2019)
radiojayallen
Breathtaking Photo! Jay
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Re: Top Twelve South Pacific Signals to the Rockwork Cliff (August 2019)
Thanks Art (and Paul),
We would be honored to have you (and/ or Dave) to join us in one of our Rockwork "Cliffhanger DXing" sessions someday! As for choosing DXing priorities, we all face tough decisions. At the Rockwork cliff there was exceptional Longwave NDB-DX (from Australia and New Zealand) coming in at the same time as exceptional Medium Wave DX, which for a live Ultralight radio DXer is probably the ultimate tough choice. Since the Longwave DX was much more rare I went after stations like 320-AI (Aitutaki, Cook Islands), 346-TG (Tauranga, NZ) and 366-PNI (Pohnpei, FSM) when I could have been chasing rare Kiwis and Aussies on MW. But my partner Tom Rothlisberger was recording it all on his Perseus-SDR, so not all is lost :-) He made out like a bandit! 73, Gary
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Re: Top Twelve South Pacific Signals to the Rockwork Cliff (August 2019)
Paul Blundell
Another excellent report.
On Mon, 19 Aug 2019, 9:00 p.m. Gary DeBock via Groups.Io, <D1028Gary=aol.com@groups.io> wrote: Excellent Longwave propagation was the big story of this month's Rockwork Cliff effort, with Tom R. once again breaking the record for South Pacific NDB's received during a west coast DXpedition. But even on the lower part of the Medium Wave band some South Pacific signals got a huge boost as a related bonus. The two Kiwi stations on 531 kHz pounded in like locals when the South Pacific NDB's made their move, and 558-Fiji rode the same trend. Other than that the usual Kiwi and Aussie regulars rounded out the top ten, except that the new 1107-Magic Talk made the list for the first time, definitely seeming to have received a power boost along with the new format. --
Paul - Moderator UltralightDX
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Re: Top Twelve South Pacific Signals to the Rockwork Cliff (August 2019)
Gary, you remind me why I moved here :)
One of these days I need to get Dave and I to join you up there. Still unpacking, repairing and refurbing..... more than once on some things. My two big MW loops need to be repaired. My HF Ham activities (what time I have) has definitely shown a flare for liking Trans-Pacific/Equator. I get rare islands and Asia on 14 MHz fairly easy when the antenna is working (had to repair again yesterday). Europe is a struggle due to my location against a hill. It is also a little noisy, but will work with that. I am spending time getting adjusted to what nearby AMBC powerhouses are around here. Do I Ham, do I MW DX, do I FMBC DX ...... ???? Do I put up my tower? .... decisions decisions. I also love the Wine country :) 73 ... Enjoy the posts and videos. Art Jackson K7DWI GP Oregon
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