If your lighning problem results in burning up the transformers, then it may not be simply that the ones you tried have issues. You may have to disconnect and/or short to ground the antenna whenever storms are forecast. I realize that's a response you'll necessarily like, but an antenna grabs signals and noise and directs them toward the other end, and if that's where the transformer is, then it's in the line of fire.
Russ Edmunds 15 mi NNW of Philadelphia Grid FN20id <[email protected]> FM: Yamaha T-80 & Onkyo T-450RDS w/ APS9B @15'; Grundig G8 AM: Modified Sony ICF 2010's barefoot --- On Mon, 1/16/12, Mark Durenberger <[email protected]> wrote: From: Mark Durenberger <[email protected]> Subject: Re: [NRC-AM] [IRCA] 16:1 Matching Transformer for "Superloop" To: [email protected] Cc: "DX @NRC" <[email protected]>, "Mailing list for the International Radio Club of America" <[email protected]> Date: Monday, January 16, 2012, 6:02 PM Naw they're pretty tiny. Regards, Mark Durenberger From: Les Rayburn Sent: Monday, January 16, 2012 4:20 PM To: Mark Durenberger Cc: Mailing list for the International Radio Club of America ; DX @NRC Subject: Re: [IRCA] 16:1 Matching Transformer for "Superloop" Mark, I used the Mini-Circuit RF Transformers in the past on a Flag antenna. Good performance, but I suffered several failures due to nearby lightning strikes. Anything I can do to "beef them up"? 73, In a Foreign Lottery, You Always Lose. deliveringtrust.com Les Rayburn, Director High Noon Film 130 1st Avenue West Alabaster, AL 35007-8536 (205) 621-7500 (205) 621-7505 FAX (205) 253-4867 CELL http://www.highnoonfilm.com On 1/16/2012 4:01 PM, Mark Durenberger wrote: Yeah...I see the system burped because it couldn't swallow that whole URL. So go to Minicircuits.com and ask 'Model Search" to show you T16-6. Regards, Mark Durenberger -------------------------------------------------- From: "Mark Durenberger" <[email protected]> Sent: Monday, January 16, 2012 3:55 PM To: <[email protected]>; "Mailing list for the International Radio Club of America" <[email protected]>; "DX @NRC" <[email protected]> Subject: Re: [IRCA] 16:1 Matching Transformer for "Superloop" Les: Try www.Minicircuits.com http://www.minicircuits.com/MCLStore/ModelInfoDisplay?13267504978520.5445037711796857 This puts you right on the page for a 16:1 transformer. They're pretty inexpensive. Regards, Mark Durenberger -------------------------------------------------- From: "Les Rayburn" <[email protected]> Sent: Monday, January 16, 2012 3:48 PM To: <[email protected]>; <[email protected]>; <[email protected]>; <[email protected]> Subject: [IRCA] 16:1 Matching Transformer for "Superloop" I've finally decided to try my hand at building a "Superloop" antenna as described in the October 2009 issue of "Popular Communications" in an article by Bruce Conti. In that article he mentions a 16:1 matching transformer made from a binocular ferrite core and 30 AWG wire. I've never had much luck at winding my own coils. For my previous "Flag" antenna, I used 16:1 transformers from Mini-Circuits which performed well, but suffered many failures due our frequent and intense lightning storms here. Bruce's article mentions that many amateurs are available to make these coils and easily found on the Internet--but I'm having no luck. Does anyone out there know someone who makes great 16:1 transformers for Superloops and would be willing to wind two of them for me? Happy to pay for the service, and can send funds via PayPal or USPS money order. Thanks! 73, Les Rayburn, N1LF 121 Mayfair Park Maylene, AL 35114 c-- *In a Foreign Lottery, You Always Lose.* deliveringtrust.com <http://www.deliveringtrust.com> Les Rayburn, Director High Noon Film 130 1st Avenue West Alabaster, AL 35007-8536 (205) 621-7500 (205) 621-7505 FAX (205) 253-4867 CELL http://www.highnoonfilm.com _______________________________________________ IRCA mailing list [email protected] http://montreal.kotalampi.com/mailman/listinfo/irca 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 To Post a message: [email protected] -----Inline Attachment Follows----- _______________________________________________ The NRC AM mailing list Now accepting pre-orders for the 32nd AM Radio Log Questions? [email protected] Latest DX Tests are found at http://www.nrcdxas.org _______________________________________________ IRCA mailing list [email protected] http://montreal.kotalampi.com/mailman/listinfo/irca 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 To Post a message: [email protected]
