Re: [Elecraft] T1 Miniature ATU
I have one that I bought fully built and it's an excellent tuner. I only stopped using it because I have all built-in tuners now and wanted to reduce the extra cabling. You'll really like it, works great. I'm not sure I'd want to actually build one tho. My K2's already have enough super tiny parts lol. 73, LS W5QD -- View this message in context: http://elecraft.365791.n2.nabble.com/T1-Miniature-ATU-tp7615913p7615922.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] T1 Miniature ATU
Most of the gripes I've see are about winding the toroids. However, Michael "the toroidguy" can supply you a set if you don't want to wind them yourself. He's "Elecraft approved" http://www.elecraft.com/Apps/ToroidGuy/toroidguy_prewound_toroids.htm That page doesn't list the T1 but I know he's done them for some builders and they're on his order sheet you can download from that page. 73, Ron AC7AC -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of a45wg Sent: Monday, April 4, 2016 10:16 AM To: elecraft@mailman.qth.net Subject: [Elecraft] T1 Miniature ATU Fellow Hams, I am considering adding a T1 ATU to my portable setup - any comments/suggestions ? Is the kit easy or difficult to construct ? As always your constructive comments are very appreciated 73s Tim A45WG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to r...@elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] T1 Miniature ATU
I bought mine assembled. It didn't look like $20 worth of fun to build. But, like everything I've bought from Elecraft, it is really unique, exceptional quality, and works very well. I was building a lot of off-brand (i.e. non-Elecraft) QRP rigs at the time. It was the perfect companion for those. Tunes almost anything, fast and very quiet. I no longer use or need it, but it's so damn cute I can't bear to sell it. I recently had a problem with my K2 ATU. No problem. I used the T1 until I could get the KAT2 on the bench. Eric KE6US On 4/4/2016 10:16 AM, a45wg wrote: Fellow Hams, I am considering adding a T1 ATU to my portable setup - any comments/suggestions ? Is the kit easy or difficult to construct ? As always your constructive comments are very appreciated 73s Tim A45WG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to eric_c...@hotmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] T1 Miniature ATU
It's solid as a rock and quite easy to build. Before I got internal tuner in my K3, I was using it for the WARC bands. Occasionally I would hit it with 100 watts RTTY and it survived. 73 Bill AE6JV On 4/4/16 at 10:16 AM, t...@sy-edm.com (a45wg) wrote: I am considering adding a T1 ATU to my portable setup - any comments/suggestions ? Is the kit easy or difficult to construct ? --- Bill Frantz| Re: Computer reliability, performance, and security: 408-356-8506 | The guy who *is* wearing a parachute is *not* the www.pwpconsult.com | first to reach the ground. - Terence Kelly __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] T1 Miniature ATU
The kit is quite easy to build and the finished product tunes fast and quietly. I've had mine since they were first offered (10+ years or so), and have backpacked with it numerous times and subjected it to many miles of motorcycle-induced vibration (and will again soon!) ...still works like new. John AE5X Part 2 coming up: https://tatqrp.wordpress.com/the-radio >I am considering adding a T1 ATU to my portable setup - any >comments/suggestions ? Wall Street Daily Peter Schiff: China Just Armed its Financial Missile http://thirdpartyoffers.juno.com/TGL3131/5702aa5a6e9ec2a5a01d5st04vuc __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] T1 Miniature ATU
Tim, If you can build in tight quarters with 1/8 watt resistors, you should have no problem. Just beware of solder bridges. 73, Don W3FPR On 4/4/2016 1:16 PM, a45wg wrote: Fellow Hams, I am considering adding a T1 ATU to my portable setup - any comments/suggestions ? Is the kit easy or difficult to construct ? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] T1 Miniature ATU
I picked one up used, so I can't speak to construction, beyond the normal good Elecraft build... However, it does seem to match just about anything, and it is cute! -- 73's, and thanks, Dave (NK7Z) For software/hardware reviews see: http://www.nk7z.net For MixW support see: https://groups.yahoo.com/neo/groups/mixw/info For SSTV help see: http://groups.yahoo.com/neo/groups/MM-SSTV/info On Mon, 2016-04-04 at 21:16 +0400, a45wg wrote: > Fellow Hams, > I am considering adding a T1 ATU to my portable setup - any > comments/suggestions ? > > Is the kit easy or difficult to construct ? > > As always your constructive comments are very appreciated > > 73s Tim > A45WG > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to d...@nk7z.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] T1 Miniature ATU
Fellow Hams, I am considering adding a T1 ATU to my portable setup - any comments/suggestions ? Is the kit easy or difficult to construct ? As always your constructive comments are very appreciated 73s Tim A45WG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Elecraft T1 Miniature ATU / BL2
I'm assuming when using the Elecraft T1 Miniature ATU with a wire antenna, dipole or long wire, the BL2, 1:1 4:1 (switched) Balun, is required. Is this correct ? thanks __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft T1 Miniature ATU / BL2
Hi Randall, You can connect a random wire antenna directly to the T1 (then toss it into a tree, etc.) without a feedline. But you'll need to add a ground counterpoise wire, too; use at least one wire cut to 1/4 wavelength on the lowest band in use. If you want to run a balanced feedline to the antenna, then a BL1 or BL2 would be required. The counterpoise or ground wire may then be optional, but is still recommended. 73, Wayne N6KR On Nov 6, 2011, at 5:59 PM, Randall wrote: I'm assuming when using the Elecraft T1 Miniature ATU with a wire antenna, dipole or long wire, the BL2, 1:1 4:1 (switched) Balun, is required. Is this correct ? thanks __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft T1 Miniature ATU / BL2
W9CF and K9YC websites are recommended reading. I found K9YC's cookbook for common mode chokes invaluable. Jim ab3cv On Sun, Nov 6, 2011 at 8:59 PM, Randall n0...@cox.net wrote: I'm assuming when using the Elecraft T1 Miniature ATU with a wire antenna, dipole or long wire, the BL2, 1:1 4:1 (switched) Balun, is required. Is this correct ? thanks __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- 90g Planted Tank Blog http://www.jtmiller.com/wordpress __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft T1 Miniature ATU / BL2
I have frequently used the T1 with a balanced antenna (open wire feed line, etc.) simply by connecting one side to the feed line to the hot center pin and the other to the shield or ground terminal on the T1. Yes, a slight amount of unbalance may be introduced, but usually much less than the natural unbalance in a doublet or loop due to surrounding objects near the antenna, even when the antenna is in a fixed location up in the clear. Such unbalance may shift the pattern slightly but IMX, has no detectable effect on the effectiveness of the antenna. Curious, I have measured the current in each side of the feed line in several setups and found no significant difference with or without a balun. What I have found that happens in rare occasions is that there is a voltage loop (high rf voltage) point at the feed point at the T1. That can raise the entire rig - T1 and the transmitter - well above ground causing tuning and RF feedback issues. I have only encountered that rarely. A balun may help in that case, but I've always cured it by changing either the length of the feed line or the antenna. My favorite ad-hoc field antenna for QRP work is two 45 foot lengths of insulated wire that terminate in a male BNC connector, one side to the center pin and one to the shield. If I can, I toss both in trees so the angle between them is at least 90 degrees. Sometimes I use the tiny plastic clothes pins sold for office use to hold papers to hold the two wires near each other for ten feet or so, forming an open wire feed before the wires head off in roughly opposite directions. If it's inconvenient to get both wires up and in the clear, I just toss the one connected to the center pin into a tree or other somewhat lofty location and leave the other wire on the ground as a 'counterpoise'. 73, Ron AC7AC -Original Message- Hi Randall, You can connect a random wire antenna directly to the T1 (then toss it into a tree, etc.) without a feedline. But you'll need to add a ground counterpoise wire, too; use at least one wire cut to 1/4 wavelength on the lowest band in use. If you want to run a balanced feedline to the antenna, then a BL1 or BL2 would be required. The counterpoise or ground wire may then be optional, but is still recommended. 73, Wayne N6KR On Nov 6, 2011, at 5:59 PM, Randall wrote: I'm assuming when using the Elecraft T1 Miniature ATU with a wire antenna, dipole or long wire, the BL2, 1:1 4:1 (switched) Balun, is required. Is this correct ? thanks __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
