Re: [IRCA] propagation article

GREAT piece! Mark, thanks for sharing. Cheers! Mark Durenberger -Original Message- From: Mark Connelly Sent: Saturday, November 24, 2018 1:01 PM To: cap...@yahoogroups.com; irca@hard-core-dx.com Subject: propagation article Maybe of some relevance to MW DX: <http://solar.spacew.

[IRCA] Coverage maps by frequency

all the stations on each frequency? The NRC pattern book is great, but I'm looking for something digital, for the classes I'm teaching. Any thoughts are welcome! Cheers! Mark Durenberger ___ IRCA mailing list IRCA@hard-core-dx.com http

[IRCA] Living the core values of DXING.

all about. Not the kiss; the sharing! Cheers! Mark Durenberger -Original Message- From: IRCA On Behalf Of R. Colin Newell Sent: Sunday, October 28, 2018 7:40 PM To: Mailing list for the International Radio Club of America Subject: [IRCA] Living the core values of DXING. We all co

Re: [IRCA] KAZ versus Pennant/Flag

Okay; thanks Kaz, I get it. I'm now going to my happy place to think about a world without copper :-)) Cheers! Mark Durenberger -Original Message- From: IRCA On Behalf Of Neil Kazaross Sent: Friday, October 26, 2018 3:07 PM To: irca@hard-core-dx.com Subject: Re: [IRCA] KAZ versus

Re: [IRCA] KAZ versus Pennant/Flag

increasing the apex? Cheers! Mark Durenberger -Original Message- From: IRCA On Behalf Of Neil Kazaross Sent: Friday, October 26, 2018 1:33 PM To: irca@hard-core-dx.com Subject: Re: [IRCA] KAZ versus Pennant/Flag OK Mark, let me understand what you're asking. You want

Re: [IRCA] KAZ versus Pennant/Flag

a front pole height of 22 feet with a few different “back”-pole heights? We may discover that identical-apex is the best solution. On the other hand… Cheers! Mark Durenberger -Original Message- From: IRCA On Behalf Of Neil Kazaross Sent: Wednesday, October 24, 2018 2:03

Re: [IRCA] KAZ versus Pennant/Flag

Thanks Mark. Kaz reminds us that D-KAZ Aspect Ratio is important to a good EZNEC result so, presumably, the same is true in real antenna life. One of the measurement runs I've made for the upcoming D-KAZ Cookbook compared two different apex heights. Cheers! Mark Durenberger -Original

Re: [IRCA] KAZ versus Pennant/Flag

Hi Don. That D-Kaz paper is being updated but will probably still suggest 140 feet as a popular length. (Ducking, expecting incoming bananas from Chuck) Cheers! Mark Durenberger -Original Message- From: IRCA On Behalf Of Don Moman VE6JY Sent: Tuesday, October 23, 2018 6:02 PM

Re: [IRCA] KAZ versus Pennant/Flag

Bill uses a "big" D-Kaz (160 ft) Cheers! Mark Durenberger -Original Message- From: IRCA On Behalf Of C B via IRCA Sent: Tuesday, October 23, 2018 3:38 PM To: Mailing list for the International Radio Club of America Cc: C B Subject: Re: [IRCA] KAZ versus Pe

Re: [IRCA] KAZ versus Pennant/Flag

That might be worth pursuing... Cheers! Mark Durenberger -Original Message- From: IRCA On Behalf Of Mark Pettifor Sent: Tuesday, October 23, 2018 1:51 PM To: Mailing list for the International Radio Club of America Subject: Re: [IRCA] KAZ versus Pennant/Flag I agree - good

Re: [IRCA] KAZ versus Pennant/Flag

, 1570 and 1600). The temptation was to watch for a minute and grab the highest signal rise...but that wouldn't necessarily be accurate either. Cheers! Mark Durenberger -Original Message- From: IRCA On Behalf Of Neil Kazaross Sent: Tuesday, October 23, 2018 11:29 AM To: irca@hard

Re: [IRCA] KAZ versus Pennant/Flag

orget" antenna when properly installed. Null for one frequency, and that same null-setting usually works for almost all the other frequencies. Cheers! Mark Durenberger -Original Message- From: IRCA On Behalf Of Guy Atkins Sent: Tuesday, October 23, 2018 11:37 AM To: Ma

Re: [IRCA] KAZ versus Pennant/Flag

I'll be publishing work on the comparison between a 140-foot and a 170-foot DKAZ, data taken this summer. Cheers! Mark Durenberger -Original Message- From: IRCA On Behalf Of Neil Kazaross Sent: Tuesday, October 23, 2018 10:38 AM To: irca@hard-core-dx.com Subject: Re: [IRCA] KAZ

Re: [IRCA] TP 12 Oct Victoria West Coast live snippet

"I'm sorry, Officer; I didn't see the flashing lights. I was busy tuning 972." (Hee Hee) Mark Durenberger -Original Message- From: IRCA On Behalf Of R. Colin Newell Sent: Friday, October 12, 2018 10:14 AM As I was driving to work at 1440 972 was alive and well on my Honda

Re: [IRCA] Oct 2 WC TP’s - what WC TP’s?

Maybe it's just as well I'm not heading to the cabin today :-)) Cheers! Mark Durenberger -Original Message- From: IRCA On Behalf Of Neil Kazaross Sent: Tuesday, October 02, 2018 10:01 AM To: irca@hard-core-dx.com Subject: Re: [IRCA] Oct 2 WC TP’s - what WC TP’s? Here in IL, DU cx

Re: [IRCA] Loop antenna question

You can do no better than the Wellbrook approach https://www.wellbrook.uk.com/loopantennas Cheers! Mark Durenberger -Original Message- From: IRCA [mailto:irca-boun...@hard-core-dx.com] On Behalf Of Larry R Fravel Sent: Tuesday, September 18, 2018 10:26 AM To: Mailing list

Re: [IRCA] CONVENTION INTENTION

19 responses so far; thanks. Keep ‘em coming please! Cheers! Mark Durenberger From: Mark Durenberger [mailto:ma...@durenberger.com] Sent: Tuesday, September 11, 2018 9:16 AM To: DX-IRCA (irca@hard-core-dx.com); IRCA2 (mw...@groups.io); mwnedi...@mwcircle.org; nrc

[IRCA] CONVENTION INTENTION

! Mark Durenberger WHY I COULDN'T MAKE THE DX CONVENTION (Pick all appropriate numbers in your response): 1) I made no plans to attend because: 1A I'm frankly tired of conventions. 1B Couldn't allocate the travel/lodging cost. 1C Didn't see anything on the program that would

Re: [IRCA] Blowtorches of the Americas.

iate a lot more than 50 kilowatts in certain directions. Cheers! Mark Durenberger -Original Message- From: IRCA [mailto:irca-boun...@hard-core-dx.com] On Behalf Of R. Colin Newell Sent: Wednesday, September 05, 2018 5:57 PM To: irca@hard-core-dx.com Subject: [IRCA] Blowtorches

Re: [IRCA] Convention goers - Phaser.

Colin: FYI Kaz is doing a paper on phasing and I'm sure would like to get his pinkies on it. Cheers! Mark Durenberger -Original Message- From: IRCA [mailto:irca-boun...@hard-core-dx.com] On Behalf Of R. Colin Newell Sent: Tuesday, September 04, 2018 2:53 PM To: irca@hard-core-dx.com

Re: [IRCA] Fun with Phasers

MIDGE! I love it. Cheers! Mark Durenberger -Original Message- From: IRCA [mailto:irca-boun...@hard-core-dx.com] On Behalf Of R. Colin Newell Sent: Wednesday, August 15, 2018 12:00 AM To: Mailing list for the International Radio Club of America Subject: [IRCA] Fun with Phasers I have

[IRCA] CONVENTION REGISTRATION

him a note, so he can add your name to the "body-count" for the events? Use this: stlouisherd...@gmail.com Cheers! Mark Durenberger ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions

Re: [IRCA] Misek/Lankford/Ratzlaff proto test.

Any "loop" you try in phasing will also null the opposite direction...which may not be a bad thing for your situation...? Cheers! Mark Durenberger -Original Message- From: IRCA [mailto:irca-boun...@hard-core-dx.com] On Behalf Of Mark Pettifor Sent: Tuesday, June 26, 20

Re: [IRCA] Misek/Lankford/Ratzlaff proto test.

ut it. > > > But I didn't understand what is meant by the "hot end". Nor why > phasing would affect what a DKAZ delivers. > > > Chuck > > > ____ > From: IRCA on behalf of Mark > Durenberger > Sent: Tuesday,

Re: [IRCA] Misek/Lankford/Ratzlaff proto test.

Mark, if you use an omni antenna to phase the D-Kaz you'll also be pulling down signals from the "hot" end of the D-Kaz. You might do better by phasing with a loop orthogonal to the D-Kaz; this would help you wipe out stuff from the sides. Cheers! Mark Durenberger -Origin

Re: [IRCA] TP DX in Seattle on 3.14

Way to go Bruce! Cheers! Mark Durenberger -Original Message- From: IRCA [mailto:irca-boun...@hard-core-dx.com] On Behalf Of Bruce Portzer Sent: Wednesday, March 14, 2018 7:27 PM To: Mailing list for the International Radio Club of America Subject: [IRCA] TP DX in Seattle on 3.14

Re: [IRCA] retirement / move / antennas

BOY Stephen, we need to get you into some D-Kaz MW action! Imagine 30 to 35 db rejection across the band toward Milwaukee/Chicago... One can never have too many antennas...and since we're only three hours apart, I'll be glad to pile on, once you can see the soil once again Cheers! Mark

Re: [IRCA] Searching for a FLG100LN

It's POSSIBLE Andy's web-site thinks you're trying to order the "European" version from North America. I believe for North American customers the model number includes a "2" ("LN-2") Cheers! Mark Durenberger -Original Message- From: IRCA [mailto

Re: [IRCA] 690 KFXN

4 watts at night :-)) Cheers! Mark Durenberger -Original Message- From: IRCA [mailto:irca-boun...@hard-core-dx.com] On Behalf Of Forrester S Sent: Saturday, November 04, 2017 11:03 PM To: Mailing list for the International Radio Club of America; a...@yahoogroups.com Subject: [IRCA] 690

Re: [IRCA] [NRC-AM] Paul S.

I wonder how many folks knew Paul wrote “teens” adventure books? Cheers! Mark Durenberger From: Am [mailto:am-boun...@nrcdxas.org] On Behalf Of Mark Connelly Sent: Saturday, September 23, 2017 10:22 PM To: a...@nrcdxas.org; irca@hard-core-dx.com Subject: Re: [NRC-AM] Paul S

Re: [IRCA] Split SuperLoop variant

This is what's fun about the empirical world. I'll set this up as planned.check F/B and then record while moving the separation from "0" to 3 feet, and let you know what I learn. PostScript: The wires do essentially "kiss" on the D-Kaz J Cheers! Mark Durenbe

Re: [IRCA] Split SuperLoop variant

Dear "Lost:" Are you possessive of wisdom that suggests the crossovers and center down runs should be a certain distance apart...and kiss only momentarily at a crossover point? Cheers! Mark Durenberger -Original Message- From: IRCA [mailto:irca-boun...@hard-core-dx.com]

Re: [IRCA] Split SuperLoop variant

poles are already in place, as the supports for the D-Kaz. Hopefully it’s a matter of adding the center pole and restringing wires. Of course that’s without the Murphy Factor Cheers! Mark Durenberger From: Neil Kazaross [mailto:neilka...@gmail.com] Sent: Wednesday, September 06

Re: [IRCA] Split SuperLoop variant

hed is the draft plan; if it doesn't make it through the reflector servers it can be found at: http://www.durenberger.com/documents/DUALOOP.pdf Cheers! Mark Durenberger, mobile -Original Message- From: Mark Connelly via IRCA Sent: Monday, September 04, 2017 11:38 PM To: neilka...@gmai

Re: [IRCA] 3.5 Inch (89mm) "Frequent Flyer" FSL Antenna Rocks at Rockwork

Hope the QRM in the motel garage where he'll put you won't be a problem Cheers! Mark Durenberger -Original Message- From: IRCA [mailto:irca-boun...@hard-core-dx.com] On Behalf Of d1028g...@comcast.net Sent: Monday, August 07, 2017 9:27 AM To: America, Mailing Subject: Re: [IRCA] 3.5

Re: [IRCA] 3.5 Inch (89mm) "Frequent Flyer" FSL Antenna Rocks at Rockwork

What role will FSLs play in the solar eclipse? Gary? Cheers! Mark Durenberger -Original Message- From: IRCA [mailto:irca-boun...@hard-core-dx.com] On Behalf Of R. Colin Newell Sent: Sunday, August 06, 2017 7:15 PM To: Mailing list for the International Radio Club of America Subject

Re: [IRCA] [NRC-AM] ECLIPSE DX-ING

1700 kHz. Cheers! Mark Durenberger, mobile ___ The 37th edition of the AM Radio Log is Sold Out! Look for the 38th Edition in August! Visit the NRC at http://www.nrcdxas.org -- Shawn Axelrod VE4DX1SMA Winnipeg MB

Re: [IRCA] TECH: Improved LF for Wellbrook ALA1530LNP

Interesting, Steve; thanks! Regards, Mark Durenberger -Original Message- From: Steve Ratzlaff Sent: Monday, May 15, 2017 5:40 PM To: ndbl...@yahoogroups.com ; Mailing list for the International Radio Club of America Subject: [IRCA] TECH: Improved LF for Wellbrook ALA1530LNP I

Re: [IRCA] DXing the West from a HOA Neighborhood

Les: Check in with Skip Dabelstein. Regards, Mark Durenberger -Original Message- From: Les Rayburn Sent: Monday, May 08, 2017 1:13 PM To: National Radio Club NRC am@nrcdxas_org ; IRCA Radio List - irca@hard-core-dx_com ; ABDX Yahoo Group - abdx@yahoogroups_com Subject: [IRCA

Re: [IRCA] Revitalization and Interference: Fact vs. Science Fiction

to more than a hundred...network affiliates, many of which are within the Class A's protected service area. They're facing reality. But gawd help us if the bottom line to all of this is yet more satellite-programmed signals doing nothing but adding to nighttime interference... Cheers! Mar

Re: [IRCA] TP 1 May Victoria version

Nick: Time to start living in the past...oh, say, around April 28th...to see what the Net-SDR sucked off the Long Beverage in the Utah desert. Regards, Mark Durenberger -Original Message- From: Nick Hall-Patch Sent: Tuesday, May 02, 2017 12:47 AM To: Mailing list

Re: [IRCA] Interesting presentation on the Bev-Flex 4 antenna

This system is way cool. Geoff Mendenhall is a dear friend from our broadcasting days. Regards, Mark Durenberger -Original Message- From: Nick Hall-Patch Sent: Friday, April 14, 2017 11:29 AM To: Mailing list for the International Radio Club of America Subject: Re: [IRCA

Re: [IRCA] 1566-HLAZ (and Jammer) S9 at 1248

I think it's really outstanding (and even cool) that the club has John Bryant to hold in fond memory...and STILL inspire us! Cheers! Mark Durenberger -Original Message- From: d1028g...@comcast.net Sent: Saturday, March 18, 2017 9:21 PM To: America, Mailing Subject: Re: [IRCA

[IRCA] Battery charger

Hi folks. I'm wondering if you can advise as to whether a laptop power supply (nominally 19 volts) can be used to charge a Sealed Lead-Acid battery stack of 18 volts? I s'pect the supply should deliver 20+ volts but...maybe this will work? Thanks in advance! Mark Durenberger

Re: [IRCA] noise?

How did you know I've been putting on weight? :-)) Regards, Mark Durenberger -Original Message- From: billy brooks Sent: Monday, January 30, 2017 5:50 PM To: 'Mailing list for the International Radio Club of America' Subject: Re: [IRCA] noise? Wow!!! One of the big guns replies

Re: [IRCA] noise?

I wouldn't apologize, Bill! You've got a great "rig." And I don't think ground is nearly as important as it would be to single-ended antennas like long wires and verticals. Regards, Mark Durenberger -Original Message- From: billy brooks Sent: Monday, January 30, 20

Re: [IRCA] off grid noise

to mention almost all wall-warts, computer routers, lights and dimmers... Regards, Mark Durenberger -Original Message- From: Neil Kazaross Sent: Monday, January 30, 2017 2:33 PM To: Mailing list for the International Radio Club of America Subject: Re: [IRCA] off grid noise I

Re: [IRCA] Alberta TPs for 29 January 2017

Build the antennas so big they're physically threatening to the neighbors. Show them the rip-cord you can pull to 'accidentally' topple them into their yard. Regards, Mark Durenberger -Original Message- From: R. Colin Newell Sent: Sunday, January 29, 2017 3:29 PM To: n.pimbl

Re: [IRCA] S. AZ TPs, Tuesday 1/17

OUCH! COFFEE TIME!!! Regards, Mark Durenberger -Original Message- From: R. Colin Newell Sent: Tuesday, January 17, 2017 11:02 AM To: Mailing list for the International Radio Club of America Subject: Re: [IRCA] S. AZ TPs, Tuesday 1/17 Back home to Victoria where temps are 40

[IRCA] MEETING NOTICE

Just had to post this, to prove you really have to be careful what you say. In this case a comment made 16 years ago has come home to roost (This is a meeting notice for Mpls-area broadcast engineers): "There will be a short business meeting tomorrow followed by Mark Durenberger g

Re: [IRCA] Alberta TPs for 8 January 2017

FYI: Andy told me some weeks ago that the Wellbrook Phased Array system is no longer being sold. Cheers! Mark Durenberger -Original Message- From: Neil Kazaross Sent: Monday, January 09, 2017 9:46 AM To: Mailing list for the International Radio Club of America Subject: Re: [IRCA

Re: [IRCA] Aloha from Hawaii

NOT FAIR! Regards, Mark Durenberger -Original Message- From: R. Colin Newell Sent: Monday, January 02, 2017 8:42 PM To: Mailing list for the International Radio Club of America Subject: [IRCA] Aloha from Hawaii Hopefully Dx reports will commence shortly Packed 2 Gary

[IRCA] DX-ing presentations

and slides are available in THE DX CORNER at www.durenberger.com Happy New Year! Mark Durenberger ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list

Re: [IRCA] Father of radio

As I understand it, the Fessenden event itself has been occasionally debunked; at least the date... Regards, Mark Durenberger -Original Message- From: Chuck Hutton Sent: Friday, December 23, 2016 10:58 PM To: Mailing list for the International Radio Club of America Subject: Re

Re: [IRCA] Father of radio

There are them what think the REAL dad was Nathan Stubblefield: https://en.wikipedia.org/wiki/Nathan_Stubblefield http://www.rense.com/general34/rew.htm Regards, Mark Durenberger -Original Message- From: Richard N Allen Sent: Friday, December 23, 2016 7:04 PM To: irca@hard-core

Re: [IRCA] MMTC To Trump: Decommission AM Band

That'll please the many AM broadcasters who voted for change. Cheers! Mark Durenberger -Original Message- From: Dennis Gibson Sent: Thursday, December 22, 2016 10:20 AM To: Mailing List for the International Radio Club of America Subject: [IRCA] MMTC To Trump: Decommission AM Band

Re: [IRCA] Fw(5): dc2dayli...@gmail.com

Is this legit? Can't imagine getting an e-mail and "clicking here" Regards, Mark Durenberger -Original Message- From: dc2daylight Sent: Monday, December 19, 2016 11:48 PM To: mcv ; Bill Nollman ; irca ; am ; dc2daylight ; swl ; Jeff Lehmann ; karlzuk ; Roy Barstow

Re: [IRCA] opening

This news just in to the DX Detector Desk: "Expect massive openings on all bands, ONE DAY AFTER 'next week or perhaps just before Christmas.' " Mark Durenberger -Original Message- From: R. Colin Newell ...my one remaining antenna will come down next week or perhaps j

Re: [IRCA] Fwd: Re: Topband: Improving condx?

some of them.) ...Offering no interpretations...tho I did NOT have pizza before bedtime Cheers! Mark Durenberger -Original Message- From: Paul Crankshaw Sent: Wednesday, December 07, 2016 3:43 PM To: Barry Davies ; Mailing list for the International Radio Club of America Subject

Re: [IRCA] Puyallup, WA Ultralight TP's for 12-7

Geez Gary...don't say "Japanese big guns" on December 7th! :-)) Regards, Mark Durenberger -Original Message- From: d1028g...@comcast.net Sent: Wednesday, December 07, 2016 10:14 AM To: America, Mailing Subject: [IRCA] Puyallup, WA Ultralight TP's for 12-7 Impr

[IRCA] MiniCircuits transformers

If you’re a fan as I am. you may wish to know about a 10percent holidaybreak for these neat little RF transformers. http://www.minicircuits.com/holiday/holiday2016.html Regards, Mark Durenberger ___ IRCA mailing list IRCA@hard-core-dx.com http

[IRCA] An SDR for the masses?

From Radio World http://www.rtl-sdr.com/the-titus-ii-complete-sdr-solution/ Regards, Mark Durenberger ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages

Re: [IRCA] Final Report # 5 from Murray Harbour North, PEI

Richard, I'm beginning to think those of us of 'advanced age' ought to put a DXPedition together in "Middle America." I know of a perfectly good desert not that far from you... Regards, Mark Durenberger -Original Message- From: Richard Allen Sent: Sunday, November 13,

[IRCA] Halloween Fun

nutes of a good time, appropriate for Halloween listening. Enjoy! Stream at http://www.durenberger.com/DonovansBrain0544.mp3 Download MP3 at www.durenberger.com (20 mb) Sure, Sure, Sure Mark Durenberger ___ IRCA mailing list IRCA@h

Re: [IRCA] WATERPROOF BOXES (was: DKAZ questions)

Another reason? Moist air is less dense than dry air. Regards, Mark Durenberger -Original Message- From: R. Colin Newell Sent: Sunday, October 30, 2016 12:45 PM To: Mailing list for the International Radio Club of America Subject: Re: [IRCA] WATERPROOF BOXES (was: DKAZ questions

Re: [IRCA] WATERPROOF BOXES (was: DKAZ questions)

The other concern about weep holes may be unfounded: What if the boxes are subjected to a moist/foggy environment? Does that ambient moisture get inside the box? Regards, Mark Durenberger -Original Message- From: Nick Hall-Patch Sent: Sunday, October 30, 2016 10:31 AM

Re: [IRCA] WATERPROOF BOXES (was: DKAZ questions)

I was just telling the boys who asked: I'm going to try a few packs of Silica Gel to see how they "weather" before drilling holes... https://www.amazon.com/30-PACKS-Gram-Desiccants-Dehumidifier/dp/B00VJ02VMK/ref=sr_1_5?ie=UTF8=1477844645=8-5=silica+gel Regards, Mark D

Re: [IRCA] WATERPROOF BOXES

Know what you mean! I've been trying to come up with a way to make one of the end-posts pivot somewhat, so I can tighten/loosen the wire as temperatures dictate. Don't guffaw...I've seen measurable F/B differences in doing this. Cheers! Mark Durenberger -Original Message- From

[IRCA] Early-season DX

1350 KCCY Pueblo, CO 1360 KNGN McCook, NE 1410 KOOQ North Platte, NE 1430 KEZW Aurora, CO 1460 KXPN Kearney NE 1550 KRPI Ferndale, WA 1580 KFCS Colorado Springs, CO Mark Durenberger ___ IRCA mailing list IRCA@hard-core-dx.com http

[IRCA] 2016 CONVENTION TECH TALKS

collator welcomes feedback on this work. Cheers! Mark Durenberger ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors

Re: [IRCA] Reversible Super Loop

Whoa!!! I never thought about being able to phase the two ends of the loop. What a great idea! Can you also create steerable nulls doing this? Regards, Mark Durenberger -Original Message- From: Mark Connelly via IRCA Sent: Wednesday, September 07, 2016 3:05 PM To: irca@hard

Re: [IRCA] Reversible Super Loop

these resistance values may not be the best; if so, someone else will chime in. Regards, Mark Durenberger -Original Message- From: Donald Barnes via IRCA Sent: Wednesday, September 07, 2016 8:40 AM To: Mailing list for the International Radio Club of America Cc: Donald Barnes

Re: [IRCA] Reversible Super Loop

from the lead-in to the amp input. (If coax lead-in, use 1:18; if twisted-pair use 1:9). This gets you "free' RF gain. Regards, Mark Durenberger, CPBE -Original Message- From: Donald Barnes via IRCA Sent: Tuesday, September 06, 2016 9:18 PM To: irca@hard-core-dx.com Cc: D

Re: [IRCA] DKAZ

ohmmeter application that should be negligible). The bigger concern would be adding that Cat-5 pair across the antenna null-port. At the upcoming Kansas City convention we hope to have in operation a reversible D-KAZ...if the QRN, QRM and Hotel gods look kindly upon us. Cheers! Mark D

Re: [IRCA] first HAARP, now.....

The really FUN DX will come from the Square Kilometer Array...we'll chat about THAT at the convention. Regards, Mark Durenberger -Original Message- From: Nick Hall-Patch Sent: Monday, August 22, 2016 9:04 AM To: Mailing list for the International Radio Club of America Subject

Re: [IRCA] Kiwa Loop

Need to get into the Junque Box over the weekend :-)) Regards, Mark Durenberger -Original Message- From: Walter Salmaniw Sent: Tuesday, August 02, 2016 1:09 PM To: Mailing list for the International Radio Club of America Subject: Re: [IRCA] Kiwa Loop Guy, and Mark, I'd love

Re: [IRCA] Kiwa Electronics' Prototype Tropical Band Loop Antenna -Photos

Nice shot of Craig! Regards, Mark Durenberger -Original Message- From: Guy Atkins Sent: Tuesday, August 02, 2016 4:04 PM To: Mailing list for the International Radio Club of America Subject: [IRCA] Kiwa Electronics' Prototype Tropical Band Loop Antenna -Photos Here are links

Re: [IRCA] Kiwa Loop

Oh yes; at the moment he's DX-ing 1 to 10 Hz with earth sensors. www.kiwa.com New web-site: www.kiwa-electronics.com Regards, Mark Durenberger -Original Message- From: Mike Sanburn Sent: Tuesday, August 02, 2016 1:55 PM To: Mailing list for the International Radio Club

[IRCA] DX Convention tech-talk schedule

Hi folks. Here’s the finalized “tech-talks” segment for the joint DX Convention in Kansas City (Sep 9-11 2016). Ernie’s gang has put together a great agenda for the three-day gathering and it’s not too late for you to register. CHEERS! Mark Durenberger SATURDAY MORNING 9/10 TECH TALKS

Re: [IRCA] Kiwa Loop

Speaking of fun prototypes...I have the in-line 'sampler' Craig built, for insertion into car-radio-antenna lead-ins. Regards, Mark Durenberger -Original Message- From: Guy Atkins Sent: Monday, August 01, 2016 7:32 PM To: Mailing list for the International Radio Club of America

Re: [IRCA] First Rockworks impression

MY goodness! WHAT were you buys drinking thinking? Cheers! Mark Durenberger mobile -Original Message- From: James Renfrew Sent: Saturday, July 09, 2016 4:01 PM To: Mailing list for the International Radio Club of America Subject: Re: [IRCA] First Rockworks impression Well my

[IRCA] 850 Minnesota

Has WQRM 850 gained nighttime authority? Recorded them last night at 10PM. Cheers! Mark Durenberger mobile ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Be sure to register now for the Joint DX

[IRCA] NULLING THE D-KAZ ON MW

be repeated by others, to yield the same results.” PLEASE LET ME KNOW ASAP IF YOU WANT ANY OTHER MEASUREMENT CRITERIA ADDED TO THE TESTS! Cheers! Mark Durenberger, CPBE ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman

Re: [IRCA] Vactrol luvin' !!

*** Those with no co/adjacents in the territory So as not to waste IRCA bandwidth, unless someone hollers otherwise I'll also take this off the IRCA reflector, to the informal discussion group already in session. Cheers! Mark Durenberger There's SO much I still don't know! -Original

Re: [IRCA] Vactrol luvin' !!

-tweaking of the Vactrol. So my question is: Was the null-depth improvement and consistency caused by the better physical installation? Or is because with the Vactrol there's no longer any direct extension of the null-end circuit via copper to a remote pot? Cheers! Mark Durenberger

Re: [IRCA] DKAZ Construction

Michael: What's the distance from the antenna midpoint to the shack? Cheers! Mark Durenberger mobile -Original Message- From: Michael Yule Sent: Sunday, May 08, 2016 7:31 AM To: irca@hard-core-dx.com Subject: Re: [IRCA] DKAZ Construction Thanks Mark and Nick for getting back to me

Re: [IRCA] DKAZ Construction Help Request

with a potentiometer. Cheers! Mark Durenberger mobile -Original Message- From: michaeldy...@gmail.com Sent: Saturday, May 07, 2016 6:02 PM To: irca@hard-core-dx.com Subject: [IRCA] DKAZ Construction Help Request I would like to install a couple of reversible DKAZ's (DKAZi?) and am wondering

[IRCA] Alberta fires

Hope Don and Nigel are safely removed from this horrible conflagration. Best, Mark Durenberger mobile ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Be sure to register now for the Joint DX Convention

Re: [IRCA] TOPAZ

Barry, your service is invaluable...accuracy unparalleled! Regards, Mark Durenberger There's SO much I still don't know! -Original Message- From: Barry McLarnon Sent: Thursday, April 28, 2016 10:20 AM To: irca@hard-core-dx.com ; a...@nrcdxas.org Subject: Re: [IRCA] TOPAZ On 04/26

Re: [IRCA] [ABDX] Common-Mode Choke Designed for MW DXing

Would this be called a "Current Balun?" Regards, Mark Durenberger There's SO much I still don't know! -Original Message- From: Brandon Jordan Sent: Wednesday, April 27, 2016 3:43 PM To: a...@yahoogroups.com Cc: AMFMTVDX - amfmtvdx@mailman_qth_net ; National Radio Cl

Re: [IRCA] TOPAZ

Thanks Barry; working here too. Regards, Mark Durenberger There's SO much I still don't know! -Original Message- From: Barry Davies Sent: Wednesday, April 27, 2016 10:08 AM To: Mailing list for the International Radio Club of America Subject: Re: [IRCA] TOPAZ OK this side

Re: [IRCA] TOPAZ

URL? http://topazdesigns.com/ambc/ Regards, Mark Durenberger -Original Message- From: Chuck Hutton Sent: Tuesday, April 26, 2016 4:27 PM To: Mailing list for the International Radio Club of America Subject: Re: [IRCA] TOPAZ Mark - It worked fine yesterday. I just re-checked

[IRCA] TOPAZ

What happened to the Topazdesigns AM website? Regards, Mark Durenberger ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Be sure to register now for the Joint DX Convention Kansas City, September 9

Re: [IRCA] Single-turn tuned loop article

Great piece! It's interesting to note Andy Ikin at Wellbrook DOES specify a maximum size (21m for a triangle, for example) but I always assumed that had to do with the configuration of his ALA 100 amplifier input. Regards, Mark Durenberger There's SO much I still don't know! -Original

Re: [IRCA] Alliance Urges FCC to Reconsider Protection Proposals

50-kilowatt 1-As who try to service their entire protected-coverage areas. Cheers! Mark Durenberger -Original Message- From: Dennis Gibson http://www.radioworld.com/article/alliance-urges-fcc-to-reconsider-protection-proposals/278493 Sent from my iPad __

[IRCA] PHOOLS IN THE PHIELD

Here’s the not-awaited pre-report of our thinking about a 2016 Utah desert DXPedition. http://www.durenberger.com/documents/PRESBT2016.pdf Sass back as appropriate. Cheers! Mark Durenberger There's SO much I don't want to know! ___ IRCA mailing

[IRCA] Noise Is the Big Problem for AM, SBE Argues

Regulatory relief to knock down noise? NOT gunna happen, dear friends! The noise is even starting to show up in cheaper FM radios. Get your DX-ing in while you still can...or better yet, join us in the desert :-)) Cheers! Mark Durenberger, CPBE -Original Message- From: Dennis

Re: [IRCA] Chance meetings of DXers

Must be some gnarly Spam filter...:-)) Regards, Mark Durenberger There's SO much I still don't know! -Original Message- From: R. Colin Newell Sent: Monday, March 21, 2016 5:05 PM To: Mailing list for the International Radio Club of America Subject: Re: [IRCA] Chance meetings

Re: [IRCA] Chance meetings of DXers

Wonder why the photo didn't make it to Minneapolis? Regards, Mark Durenberger There's SO much I still don't know! -Original Message- From: R. Colin Newell Sent: Monday, March 21, 2016 4:31 PM To: Mailing list for the International Radio Club of America Subject: Re: [IRCA] Chance

[IRCA] NOISE-BEATING

uld be sufficient. Hope this helps! Sincerely, Rachael Parker Cheers! Mark Durenberger, CPBE There's SO much I still don't know! ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messa

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