[Elecraft] Elecraft T1 auto tuner question

2023-05-22 Thread n7tb
I have a T1 that I have used for several years. I recently purchased a QCX-mini, and an SW-3B. I normally use my K2, KX2 or KX3 for portable operations, but occasionally I like to use something different for QRP CW. Both the QCX-mini and the SW-3B require a 2.0 or less SWR. The documentation fo

[Elecraft] T1 Antenna Tuner for sale

2023-08-30 Thread Jim Sheldon
I have a T1 that's a couple years old. It got used only slightly and never out portable with my KX2 after I built it from the kit. I added the internal tuner to the KX2 to minimize things to carry when we went on vacation and the T1 was shelved as a backup in case the KX2's tuner quit (it nev

Re: [Elecraft] T1 beginner operating question

2024-01-14 Thread wb0gaz via Elecraft
Thanks, Myron - I've plugged my paddle (tip = dit, ring = dah) into the side jack of the tuner. I can press the Dah (RING) contact and after 2 seconds while in sleep mode, it appears to enter tune-ready (blinking green LED) condition. During blinking green LED condition, application of 5 watts

Re: [Elecraft] T1 beginner operating question

2024-01-14 Thread wb0gaz via Elecraft
One note I should add - after the "INFO" procedure (emits "L0" with yellow LEDs, followed by string of individual flashes with Red LED), I noticed relays clicked once at the end of the red LED sequence. On Sunday, January 14, 2024 at 05:31:25 PM MST, wrote: Thanks, Myron - I've pl

[Elecraft] T1 Remote Tuning and Power Supply

2010-11-16 Thread GeorgeP1111
I am in the process of slowly reconfiguring my station for the inevitable future move to a condo or antenna restricted area where I will have to play the "Stealth" antenna game. My station comprises of a Yaesu FT-817ND, W1 PWR/SWR Indicator, 3ft diameter remotely tuned home built 20m-10m Magnetic

Re: [Elecraft] T1 tuner balanced in/out

2009-07-20 Thread Gil Cross
Thanks but no thanks. Only balun I would consider would be at the input to the rf section and would be a 1-1 balun. Gil - Original Message - From: "Doug Phillips" To: Sent: Monday, July 20, 2009 12:12 PM Subject: T1 tuner balanced in/out > Gil try the BL2 kit from

Re: [Elecraft] T1 tuner balanced in/out

2009-07-20 Thread Ron D'Eau Claire
The BL2 *is* a 1:1 balun. The only difference between a 1:1 and a 4:1 is the way the windings are connected. The BL2 has a switch to make the connections for either transformation, 1:1 or 4:1. Your choice. Ron AC7AC -Original Message- Thanks but no thanks. Only balun I would cons

RE: [Elecraft] T1 How to mount it?

2008-10-18 Thread Dale Putnam
I've mounted my T-1 with the foam tape, but with care to not cover the battery compartment. Yes, the tape would need to come up.. or off, to change the batteries, although that doesn't have to happen often, and the tape will come up with a bit of good luck, clean enough to reuse, especially whe

[Elecraft] FT-817 - Elecraft T1 Y adapter

2005-11-02 Thread Julian (G4ILO)
Has anyone made available a Y adapter to allow the FT-817 control cable for the T1 ATU to be used at the same time as a CAT interface cable? I suppose I could try to figure out how to make one, but I haven't found a source for inline mimi DIN 8 pin sockets, and these days I can't see well enoug

[Elecraft] FS/Trade: Elecraft T1 auto tuner

2005-11-27 Thread NZ8J
I have an excellent condition Elecraft T1 auto tuner that is factory built for sale or possibly trade towards a Elecraft KX1. $125 shipped and insured or if you have a trade on a KX1 let me know what you have and how you'd like to trade. Thanks Tim

[Elecraft] T1 ATU used in attic environment

2006-04-08 Thread Kenneth Moorman
Hi All, I am considering using my T1 to tune a couple of attic antennas, a 40 mtr dipole with drooping ends, and a horizontal loop of about 130 feet total length, as close to the feed point of each antenna as possible to reduce losses in the coax from shack to attic. I would plan to use a rela

Re: [Elecraft] T1 internal to FT-817

2006-04-12 Thread Tom Althoff
ent: Wednesday, April 12, 2006 11:43 AM Subject: [Elecraft] T1 internal to FT-817 I see the FAQ for the T1 suggests that the T1 could be mounted in the FT-817 battery compartment "With some effort". I plan on doing this but would like to hear back from anyone who's "been t

Re: [Elecraft] T1 internal to FT-817

2006-04-12 Thread Nigel A. Gunn G8IFF/KC8NHF
There ya go. Been there, done that and here's the pictures. http://www.ngunn.net/cyberworld/hamradio/t1/index.html Tom Althoff wrote: I see the FAQ for the T1 suggests that the T1 could be mounted in the FT-817 battery compartment "With some effort". I plan on doing this but would like to he

Re: [Elecraft] T1 internal to FT-817

2006-04-12 Thread Tom Althoff
Nice job Nigel...I'm glad you included the FT-817 module too. Thanks! I'll talk with you off-line. - Original Message - From: "Nigel A. Gunn G8IFF/KC8NHF" <[EMAIL PROTECTED]> To: "Tom Althoff" <[EMAIL PROTECTED]> Cc: Sent: Wednesday, Apri

Re: [Elecraft] T1 internal to FT-817

2006-04-12 Thread Eric Swartz - WA6HHQ, Elecraft
colony! 8-) Yup...forgot to specify a method of shipping. I wonder if the $999 is a bug or if it is a deliberate way of shocking the user into going back and re-entering the data properly? - Original Message - From: "Tom Althoff" <[EMAIL PROTECTED]> To: Sent: Wednesd

Re: [Elecraft] T1 internal to FT-817

2006-04-26 Thread Tom Althoff
inal Message - From: "Tom Althoff" <[EMAIL PROTECTED]> To: Sent: Wednesday, April 12, 2006 11:43 AM Subject: [Elecraft] T1 internal to FT-817 I see the FAQ for the T1 suggests that the T1 could be mounted in the FT-817 battery compartment "With some effort". I p

[Elecraft] Re: Enclosure for Elecraft T1 tuner

2006-05-29 Thread Alexandra Carter
ke an enclosure for the Elecraft T1 tuner, I've just read through the reviews of it on Eham and a lot of people don't like the plastic case. 73 de Alex NS6Y ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscr

Re: [Elecraft] Elecraft T1 tuner for sale.

2016-02-23 Thread Jim Rodenkirch
I sent two replies to ur QRZ.com e-mail address, Randy. 71.5 de Jim Rodenkirch K9JWV -- View this message in context: http://elecraft.365791.n2.nabble.com/Elecraft-T1-tuner-for-sale-tp7614417p7614517.html Sent from the Elecraft mailing list archive at Nabble.com

[Elecraft] FS: Elecraft T1 Automatic Antenna Tuner

2016-04-27 Thread Dan Boardman
Only used it a few times - 9/10 in nice condition - non smoker $135 shipped Dan - NB1C __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mail

Re: [Elecraft] [T1] Newly assembled T1 inop

2019-04-12 Thread Randy Moore
Found the problem! As many would guess - it's a solder problem! A tiny splash of solder in a random location shorted one of the remote control lines to ground! 73, Randy, KS4L On Thu, Apr 11, 2019, 9:05 PM Randy Moore wrote: > Just completed an Elecraft T1 ATU. I built and used one

Re: [Elecraft] T1 ATU for 200mW WSPRlite

2019-06-30 Thread Bill Adams
from Mail for Windows 10 From: MaverickNH Sent: Sunday, June 30, 2019 7:47 AM To: elecraft@mailman.qth.net Subject: [Elecraft] T1 ATU for 200mW WSPRlite I'm planning to do some camping and will bring along a KX3Helper EndFed 40-6m antenna with 9:1 Unan, T1 ATU and SOTAbeams WSPRlite to run o

Re: [Elecraft] T1 ATU for 200mW WSPRlite

2019-06-30 Thread MaverickNH
Thanks Bill, but I wasn't clear the options I was looking for were how to use he T1 with the EndFed antenna I have with the WSPRlite, given that the T1 requires 0.5W and the WSPRlite outputs only 0.2W. Odd as it sounds, I'm looking for an "amplifier" to switch in to bump 10-25 fold to 2-5W as the T

Re: [Elecraft] T1 as stopped tuning correctly.

2016-08-08 Thread Don Wilhelm
Steve, The blinking yellow LED as well as the Self Test results seem to indicate that the T1 is in BYPASS mode. Tap the BYP/INFO button to alternate between ATU inline (green LED on). 73, Don W3FPR On 8/8/2016 12:44 PM, Steve-KI4EZL wrote: Hello, My T1 tuner quit working. It is about 5 w

Re: [Elecraft] T1 as stopped tuning correctly.

2016-08-08 Thread Steve-KI4EZL
Thanks Don. In the video I posted on youtube, the blinking yellow is actually the self test sending code for each value. The green light was blinking when in first step of tune mode, then touch paddle to start 2nd step of tune mode. Normally it moves around trying different tunings and latche

Re: [Elecraft] T1 as stopped tuning correctly.

2016-08-08 Thread Don Wilhelm
Steve, That 33 foot wire may be what is giving you problems. It is a half wave on 20 meter and present an impedance greater than the T1 can tune. I quote from the T1 manual: "Avoid lengths close to a multiple of 1/2-wavelength on any band you plan to use. If you use an end-fed wire with no fee

Re: [Elecraft] T1 as stopped tuning correctly.

2016-08-08 Thread Steve-KI4EZL
Thanks Don. The antenna that I am using is the UltiMax 100 End Fed antenna with a 33' wire which all came from the factory as is. It has been a super antenna, worked lots of state side and DX with it and the MTR 5b radio tuning with the T1. I just spent a week with it up in the Smokes. It wa

Re: [Elecraft] Elecraft T1 Miniature ATU / BL2

2011-11-06 Thread Wayne Burdick
ne 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 > antenn

Re: [Elecraft] Elecraft T1 Miniature ATU / BL2

2011-11-06 Thread Jim Miller
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 wrote: > > I'm assuming when using the Elecraft T1 Miniature ATU with a wire antenna, > dipole or long wire, the BL2,

Re: [Elecraft] Elecraft T1 Miniature ATU / BL2

2011-11-06 Thread Ron D'Eau Claire
. 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] Elecraft T1 inside a Sierra (etc.)?

2005-02-28 Thread wayne burdick
Hi all, Someone just asked me if our new T1 ATU could be built into a Sierra. The answer most definitely yes. In fact it would fit into just about any 0.5 to 20-watt rig that I know of, including inside the battery compartment of an FT-817. (I'm pretty sure it would even fit into an SST :)

Re: [Elecraft] T1 and 50' end fed.

2005-03-10 Thread wayne burdick
On Mar 9, 2005, at 8:14 PM, Glen Torr wrote: Just ordered my T1 and was interested in the disposition and ground system of the 50' end-fed Wayne uses with no feed line, sounds really applicable to my home situation. I will be using it with my KX1. Hi Glen, I do a lot of experimenting wit

[Elecraft] T1-A are back in stock!

2005-07-11 Thread Eric Swartz - WA6HHQ, Elecraft
T1-A auto-tuners are now back in stock ready for immediate shipment :-) 73, Eric WA6HHQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://m

[Elecraft] ATU efficiency and the Elecraft T1

2005-08-08 Thread wayne burdick
Jay wrote: All tuners will eat up some percentage of your RF output power. The ones with toroid or smaller inductors may eat up more power. Jay, John, etc.: The physical size of the inductors would only be a factor if they were also inefficient (dissipating a lot of heat). In all of our tune

[Elecraft] T1 connections/Fridge Full of Beer

2007-10-17 Thread Jonathan
Well, Ken, that reminded me of something I was thinking when I was building a RockMite once. I'm not talking about excess here--just normal moderate healthy enjoyment of brewed beverage--I can't touch the stuff when I'm building anything! I thought I could wet my whistle as I often do in the eve

Re: [Elecraft] T1 to Window Line connection?

2007-12-15 Thread Sandy
Go for the BNC to double banana jack adapter. Be careful to get a genuine Pomona one as a lot of the generic ones are Chinese and crap! 73, Sandy W5TVW - Original Message - From: "Jim Miller" <[EMAIL PROTECTED]> To: Sent: Saturday, December 15, 2007 8:49 PM Subject:

[Elecraft] [T1] T1 tuner auto-tune sensitivity?

2010-12-27 Thread eric norris
Dear Gang: Has anyone used a T1 with a RockMite?  My T1 will not detect and autotune with either of two RockMites I have tried it with.  Are there any mods that would increase the T1 autotune sensitivity?  The RockMites put out about .5 watts, so I am thinking I only need to increase the sensit

[Elecraft] T1 Tuner green/yellow flashing LEDs

2020-12-15 Thread Craig Vonilten
I just finished building my T1 kit. As with their other gear, top notch instructions and quality. A very solid design. Power up and test all appear to be functional, although I've not tuned any radials yet, since I wanted to step through the testing. Everything appears nominal including the ind

[Elecraft] Elecraft T1 and ICOM IC-705

2021-01-26 Thread Björn Ekelund
Thinking entirely egoistic, I think Elecraft should manufacture this great design as an option to the equally great T1. Elecraft T1 controller (T1con) with extremely low energy consumption!: アマチュア無銭家のブログ (cocolog-nifty.com) <https://amateur-radio.cocolog-nifty.com/blog/2021/01/post-7d1c42.h

[Elecraft] T1 cable for the IC-705

2021-02-27 Thread William Combs via Elecraft
Is there any update on the T1 control cable for the IC-705? Bill W8BC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net Thi

[Elecraft] T1 bypass mode and 2M/70CM

2021-04-25 Thread Don - W6CZ
I know that the T1 can’t be used to tune an antenna above 6 meters, but can it be used in the bypass mode? -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecra

[Elecraft] OT FS: Elecraft T1 Tuner - Assembled

2022-04-04 Thread James Bennett via Elecraft
Got another item in the shack that has moved to my “un-needed at this time” list: an Elecraft T1 tuner, with printed manual. Works fine, never been out of the house. Non-smoking environment. Take a look at the price of a new one! I’ll sell mine for $185, shipped USPS Priority Mail. Jim

Re: [Elecraft] Elecraft T1 auto tuner question

2023-05-22 Thread David Gilbert
The T1 specs say that it should function with input power as low as 0.5 watts.  An 8 dB attenuator at the output of your 4-5 watt QRP rig should still give you close to 0.5 watt into the T1, and the attenuator acts as a buffer that diminishes the reflected power from the high SWR load.  Tune

Re: [Elecraft] Elecraft T1 auto tuner question

2023-05-23 Thread Dave New, N8SBE
I use this on all my QRP rigs that can't take a high SWR during tuning with an external tuner: https://qrpguys.com/tuning-indicator It's tiny, inexpensive, and keeps the SWR under 1.5:1 while you are tuning, and has a little slide switch that bypasses the gadget after you done tuning, so you

Re: [Elecraft] T1 Remote Tuning and Power Supply

2010-11-16 Thread Bill K9YEQ
To: elecraft@mailman.qth.net Subject: [Elecraft] T1 Remote Tuning and Power Supply I am in the process of slowly reconfiguring my station for the inevitable future move to a condo or antenna restricted area where I will have to play the "Stealth" antenna game. My station comprises of

[Elecraft] T1: resistance check problems before final assembly

2009-11-16 Thread John Shadle
On p. 22 of the T1 assembly manual it states that "resistance between D3 anode and the "-" pad near D7" should be >100Kohms. That's good. However, it then states that when I press S1 I should see resistance between 117k and 130k ohms. I have 148k ohms. Is this a problem? If so, what should I ch

Re: [Elecraft] T1 ATU used in attic environment

2006-04-08 Thread Joe-aa4nn
Being an engineer I am sure you enjoy putting these kinds of pieces together. OTOH, the Ameritron 4-position switch placed in your attic will switch up to four antennas. The control voltage to activate the switch rides on the coax. One coax, four antennas. Quality RG213 and your db loss ain't

Re: [Elecraft] Re: Enclosure for Elecraft T1 tuner

2006-05-29 Thread W2AGN
Alexandra Carter wrote: > This is a letter/replay to American Morse Guess I only rate a 72 > lol! But, who knows, this may happen. for the record the plastic > case is fine with me! Alex. > FYI, for many years "72" has been used among QRPers to indicate "Best QRP." Originated by Oleg, RV3G

Re: [Elecraft] Re: Enclosure for Elecraft T1 tuner

2006-05-30 Thread Alexandra Carter
OH, ok, I guess I feel better now! 73/72/HP-41C de Alex NS6Y On May 29, 2006, at 2:39 PM, W2AGN wrote: FYI, for many years "72" has been used among QRPers to indicate "Best QRP." Originated by Oleg, RV3GM back in 1994 or 1995. -- _ _ _ _ _ / \ / \ / \ / \ / \

[Elecraft] [T1] T1 autocoupler with low power transceiver

2015-12-25 Thread inventor61 .
adio covers up to 4 bands instead of just two, costs only slightly more than the Ensemble TXRX, is the same form factor as the Ensemble, requires no sound card, is compatible with all SoftRock Si570 control software, and, it directly connects to and commands the Elecraft T1 tuner. Another poster ma

[Elecraft] [T1] T1 autocoupler with low power transceiver

2015-12-25 Thread inventor61 .
It was pointed out to me that the radio I referred to was not currently available. I did say 'soon.';-) The new kit is to be available in January. I am unaffiliated with Omnia SDR. However, I did build three of the Peaberry radios, and still own one of the original model. The Omnia folks ha

[Elecraft] FS: Elecraft T1 and Yaesu FT817ND #QRP

2018-11-29 Thread Hai Nguyen Ly
Morning all: I purchased the following items in hopes of setting up a portable QRP station/coms go kit of sorts with the Yaesu FT817ND, however I'm finding that work and family commitments leave me little to no time for the hobby. I also recently obtained a KX2 which also streamlines my QRP asp

[Elecraft] T1-A and T1-FT817C FOR SALE

2017-07-15 Thread Michael Raskin
For sale is a brand-new, still in the box, never-used, factory assembled Elecraft T1-A Automatic Antenna Tuner. New they sell for $159.95 assembled. Buy mine for $100. Also have a brand-new T1-FT817C Remote Control Adapter Cable which sells new for $59.95. Buy mine for $40. Or buy both

[Elecraft] T1 as remote tuner for KX2/KX3?

2017-09-15 Thread Steve Sergeant
I am developing plans a hut-to-hut skit tour in Canada for next winter. On this trip, I will want to operate my KX2 inside of metal-roofed A-frame huts with a 60' feedline (RG-174, RG-58, or 300Ω twinlead?) to some kind of wire antenna outside. I plan to operate SSB on 40 & 20 meters at a minimum,

[Elecraft] FOR SALE: ELECRAFT T1 ATU - Factory Built

2016-08-21 Thread Dan Boardman
I have a Elecraft T1 (factory built) for sale - I used it ounce, Non smoking user. Sell for $125 shipped in the US - Paypal OK - ADD 3% for fees. First responder that tells me they will take it will be the lucky new owner! Thanks much Dan - NB1C

[Elecraft] Antennas for use with Elecraft T1 ATU

2006-07-05 Thread thomaskd
I have an Elecraft T1 ATU and am looking for some simple antenna ideas for using it with my QRP rigs including my Wilderness Radio Sierra and SWL-20. I am new to this outdoor portable QRP operations...so I apologize if the questions seem very basic. I would like a setup that uses the T1 and

[Elecraft] FS: Complete QRP kit with Elecraft T1

2006-07-09 Thread JEAN-FRANCOIS MENARD
Hi, I have a complete QRP kit that includes an Elecraft T1 to sell on eBay. Take a look at... www.ebay.com Type item number in the search box: 35739039 Happy bidding !!! J-F / VA2VYZ __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the

[Elecraft] Antennas for use with Elecraft T1 ATU

2006-07-11 Thread Kenneth A. Christiansen
Hi from Fargo, ND and many camp sites. This is the antenna I have used for the last 5 years in my camper with I feel excellent results. It is a 44 foot doublet (22 feet) on each side of center) with a feed line of 22 feet of 450 ohm window line. The center is supported by a 23 foot telescopin

[Elecraft] Elecraft T1 ATU FAQ: #1 question & answer

2005-02-28 Thread wayne burdick
Hi all, The frequently-asked-questions page for our new T1 antenna tuner will be up in a few hours. Meanwhile, by popular demand, here's the first Q, and first A. 73, Wayne N6KR * * * Q: How does the T1 compare to Elecraft’s other low-power ATUs – the KAT2, KAT1, and KXAT1? A: The T1 is

[Elecraft] T1 ATU tests with 8-foot whip

2005-03-10 Thread wayne burdick
The preliminary T1 owner's manual (on our web site) says that the tuner can match an 8-foot whip down to 10 MHz. Make that 7 MHz. I just completed more rigorous testing, and was able to tune to close to 1.0:1 on 40-6 meters with a standard 102" (8' 6") whip. On 160 and 80 meters, a loading coil

[Elecraft] T1 Arrives--Good News and Bad NewsQ

2005-03-24 Thread DYARNES
First the good news! My T1 arrived today! Now the bad news! I have a new Bullmastiff puppy--3 months old--his name is Linus, but I may rename him T1--I had the bags out of the box to inventory parts--got a phone call--puppy (he's 30 lbs. already), stretches up to table and grabs bag of pa

[Elecraft] T1 and a large measure of embarrassment.

2005-04-03 Thread Bill Scovell
Greetings from down-under, I believe it may make me feel a little better if I share this embarrassment with the group. My T1 kit which was shipped on March 21 arrived a few days ago and yielded the usual perfect inventory, but of course the shipment precede

[Elecraft] T1 and FT-817 sometimes not tuning

2005-04-12 Thread Leigh L Klotz, Jr.
I gave my new T1 a workout operating /VE3 last week, and found an oddity. Sometimes pressing the tune button and sending dits or dahs doesn't do anything but flash the green LED. Taking the battery out doesn't dix it, but a band change and a retune and then QSY back usually makes it start aga

[Elecraft] T1 and remote control - works just fine

2005-07-08 Thread Gerhard Schwanz
Hi list! Just these days I received my T1 kit and the next evening (abt. 4hrs) was his. No problems while building though a little bit confused over the picture showing the battery terminals for installation. First tests showed it well functioning. The next day I tried several different antenna se

Re: [Elecraft] ATU efficiency and the Elecraft T1

2005-08-08 Thread Bob Cunnings
So far I've not bothered with a balun when running my KX1 into a dipole fed with balanced line (using the internal tuner to match) and seem to have pretty good results, better than the random wire and counterpoise so far (portable operation over poor ground). My thinking was that since the whole sy

[Elecraft] Re: ATU efficiency and the Elecraft T1

2005-08-08 Thread wayne burdick
On Aug 8, 2005, at 9:29 AM, Bob Cunnings wrote: So far I've not bothered with a balun when running my KX1 into a dipole fed with balanced line (using the internal tuner to match) and seem to have pretty good results, better than the random wire and counterpoise so far (portable operation over p

[Elecraft] Re: ATU efficiency and the Elecraft T1

2005-08-08 Thread wayne burdick
On Aug 8, 2005, at 10:01 AM, Darrell Bellerive wrote: If I recall the BL1 was designed for a 200 ohm load. Will it still do a 4:1 conversion if the load is 1000 or 2000 ohms? Yes, although the higher the impedance, the more the balun's own strays will come into play. (Note also that at QRP l

RE: [Elecraft] ATU efficiency and the Elecraft T1

2005-08-08 Thread Robert Tellefsen
: Monday, August 08, 2005 9:30 AM To: Elecraft Subject: Re: [Elecraft] ATU efficiency and the Elecraft T1 So far I've not bothered with a balun when running my KX1 into a dipole fed with balanced line (using the internal tuner to match) and seem to have pretty good results, better than the random

Re: [Elecraft] ATU efficiency and the Elecraft T1

2005-08-08 Thread Stuart Rohre
L. B. Cebik, W4RNL, explored the "im balance" of the end fed Zepp antenna, a half wave with open wire feed where one side of the wire connects to nothing, and the other to the antenna end element. That would seem to be the extreme case of current imbalance but he found typically, there is only

Re: [Elecraft] ATU efficiency and the Elecraft T1

2005-08-08 Thread Bob Cunnings
On 8/8/05, Stuart Rohre <[EMAIL PROTECTED]> wrote: > This was done for a floating system, or a closed system, ie dipole in space, > no other ground. That would pretty well approach the floating system you > have used on rock. > Well, my thinking went like this: Imagine I connected a 3/4 wavele

Re: [Elecraft] ATU efficiency and the Elecraft T1

2005-08-08 Thread Darrell Bellerive
On August 8, 2005 01:39 pm, Stuart Rohre wrote: > L. B. Cebik, W4RNL, explored the "im balance" of the end fed Zepp antenna, > a half wave with open wire feed where one side of the wire connects to > nothing, and the other to the antenna end element. > > That would seem to be the extreme case of cu

RE: [Elecraft] ATU efficiency and the Elecraft T1

2005-08-08 Thread W3FPR - Don Wilhelm
Darrell, It all depends on the electrical length to the feedline at the frequency of operation. Sorry, but no better answer exists. If your antenna is end fed (like the example of an end fed dipole), the impdance at the antenna feedpoint will be high, but if the feedline is an odd multiple of a

Re: [Elecraft] ATU efficiency and the Elecraft T1

2005-08-08 Thread Darrell Bellerive
On August 8, 2005 07:03 pm, W3FPR - Don Wilhelm wrote: > If your antenna is end fed (like the example of an end fed dipole), the > impdance at the antenna feedpoint will be high, but if the feedline is an > odd multiple of a 1/4 wave (elecrtical), the impedance presented to the > shack loaction sho

RE: [Elecraft] ATU efficiency and the Elecraft T1

2005-08-08 Thread Ron D'Eau Claire
Darrell asked: So how would the Elecraft BL1 Balun do with the End-Fed Zepp? Depending on the ground losses, the impedance could be 5000 ohms or so. Would the 4:1 transformation ratio still hold true? What would the efficiency of the balun be? Would 100 watts from a K2/100 cause saturation of th

Re: [Elecraft] ATU efficiency and the Elecraft T1

2005-08-08 Thread Darrell Bellerive
On August 8, 2005 07:30 pm, Ron D'Eau Claire wrote: > Many Hams try to use lengths other than 1/2 wave for the radiator and 1/4 > wave for the feeders. When you do that, all bets are off. It's like any > "non-resonant" doublet or end-fed wire. They can work well, but you must > have a matching netw

Re: [Elecraft] ATU efficiency and the Elecraft T1

2005-08-08 Thread Paul Gates
ED] - Original Message - From: "Darrell Bellerive" <[EMAIL PROTECTED]> To: Sent: Monday, August 08, 2005 10:49 PM Subject: Re: [Elecraft] ATU efficiency and the Elecraft T1 > On August 8, 2005 07:30 pm, Ron D'Eau Claire wrote: > > Many Hams try to use lengths

RE: [Elecraft] ATU efficiency and the Elecraft T1

2005-08-08 Thread Ron D'Eau Claire
Paul, KD3JF wrote: My only comment is, first of all I am not an engineer and I am not savvy always on the ins and outs of antennas, but my gut feeling is that a "L" network tuner is the better for all circumstances than a "T" network tuner. Good 'gut'

RE: [Elecraft] ATU efficiency and the Elecraft T1

2005-08-08 Thread W3FPR - Don Wilhelm
Darrell, In your example, the 160 meter half wave will work FB on 160 meters with a feedline that is 1/4 wavelength at 160 meters. For all other ham bands, the situation is different - the antenna length will still be a multiple of 1/2 wavelentghth, but the feedline will also be a multiple of a h

Re: [Elecraft] ATU efficiency and the Elecraft T1

2005-08-09 Thread Stuart Rohre
Another answer for Darrell, is that a balun is designed to see equal antenna halves either side of it. (on its balanced side). There is no advantage to using one on an end fed dipole. If you were to feed with coax, to an end fed dipole, and that coax is quarter wave long, you would transform t

Re: [Elecraft] ATU efficiency and the Elecraft T1

2005-08-09 Thread Stuart Rohre
The L network tuner has one less lossy reactive component, (coil or cap). It also has an unambiguous tune up for optimum power transfer. Ie, only one setting of the variable components gives the lowest loss transfer of power. In a Tee tuner, there are three adjustable parts, and two settings fo

[Elecraft] Re: FS: Elecraft T1 kit - new *SOLD*

2007-09-30 Thread Andrew Moore
My Elecraft T1 kit has been sold. --Andrew On 9/30/07, Andrew Moore <[EMAIL PROTECTED]> wrote: > Elecraft T1-K > 20 W standalone antenna tuner, new, unassembled. > Current rev. Bought it last month. > > $100 plus $5 to ship, within U.S. > > (Elecraft

Re: [Elecraft] [T1] T1 tuner auto-tune sensitivity?

2010-12-28 Thread Don Wilhelm
Eric, The specified minimum power required for tuning is 0.5 watts. Since you seem to be willing to experiment a bit, and given the fact that the combination of R3 and R5 look similar the the Forward power potentiometer in other Elecraft wattmeters, I would try increasing R5 to 150 k and red

Re: [Elecraft] T1 Remote Tuning and Power Supply

2011-03-10 Thread GeorgeP1111
in what you come up with? IF you have the time please keep me informed. Bill K9YEQ -Original Message- From: [hidden email] [mailto:[hidden email]] On Behalf Of GeorgeP Sent: Tuesday, November 16, 2010 11:25 AM To: [hidden email] Subject: [Elecraft] T1 Remot

Re: [Elecraft] T1 Remote Tuning and Power Supply

2011-03-10 Thread Michael Babineau
AM EST >To: elecraft@mailman.qth.net >Subject: Re: [Elecraft] T1 Remote Tuning and Power Supply >Hi Bill >Quite a while back you sent me this request (I didn't forget). I'm done with >the schematic of the T1 remote tuning interface that I hope to find time to >

Re: [Elecraft] T1 Remote Tuning and Power Supply

2011-03-10 Thread GeorgeP1111
Thanks Michael Maybe I'll continue with my plans and give it a try this spring. de George WD0AKZ -- View this message in context: http://elecraft.365791.n2.nabble.com/T1-Remote-Tuning-and-Power-Supply-tp5744646p6159746.html Sent from the Elecraft mailing list archive at Nabble.com. _

Re: [Elecraft] T1 Remote Tuning and Power Supply

2011-03-10 Thread Jim Miller
il] > [mailto:[hidden email]] On Behalf Of GeorgeP > Sent: Tuesday, November 16, 2010 11:25 AM > To: [hidden email] > Subject: [Elecraft] T1 Remote Tuning and Power Supply > > > I am in the process of slowly reconfiguring my station for the inevitable > future m

Re: [Elecraft] T1 Remote Tuning and Power Supply

2011-03-10 Thread GeorgeP1111
Jim AB3CV wrote: > > I've been running my T1 remote out under my 88ft dipole which is just > short > of 50ft in the air at the midpoint. The ends are a bit higher. The T1 is > down at the ground under a plastic container and connected to the > windowline > via a Elecraft 1:1 balun. I remote contr

Re: [Elecraft] T1 Remote Tuning and Power Supply

2011-03-11 Thread David Cutter
Jim I like the idea of a battery operated remote tuner and a simple relay change-over to provide a top-loaded vertical. I'm often bothered by connecting the antenna feeder into a 1:1 balun and then to the tuner. I've read that the very large impedance mis-match can lead to large losses in the

Re: [Elecraft] T1 Remote Tuning and Power Supply

2011-03-11 Thread Vic K2VCO
I did an experiment in which I connected an open-wire-fed 88 foot dipole to my K3 through a large balun. The KAT3 matched it perfectly on all bands, but I wondered about the efficiency of this system compared to a balanced tuner like my old Johnson Matchbox. So I measured the temperature rise

Re: [Elecraft] T1 Tuner green/yellow flashing LEDs

2020-12-15 Thread James Bennett via Elecraft
Craig - I built one about two months ago and it’s working fine. On mine, to go to bypass, I quickly press the PWR button, then the BYP button. Doing so alternates back and forth between bypass and not. After doing that one-two press combo, the yellow will light up for a second or two if you are

Re: [Elecraft] T1 Tuner green/yellow flashing LEDs

2020-12-15 Thread James Bennett via Elecraft
What I meant to say in the second paragraph is that the yellow light will flash if you tap PWR and do nothing else. > On Dec 15, 2020, at 12:50 PM, James Bennett via Elecraft > wrote: > > Craig - I built one about two months ago and it’s working fine. > > On mine, to go to bypass, I quickly p

Re: [Elecraft] Elecraft T1 and ICOM IC-705

2021-01-26 Thread Wayne Burdick
> design as an option to the equally great T1. > Elecraft T1 controller (T1con) with extremely low energy consumption!: > アマチュア無銭家のブログ (cocolog-nifty.com) > <https://amateur-radio.cocolog-nifty.com/blog/2021/01/post-7d1c42

Re: [Elecraft] Elecraft T1 and ICOM IC-705

2021-01-26 Thread David Patino
d wrote: > > > > Thinking entirely egoistic, I think Elecraft should manufacture this > great > > design as an option to the equally great T1. > > Elecraft T1 controller (T1con) with extremely low energy consumption!: > > アマチュア無銭家のブログ (cocolog-nift

Re: [Elecraft] Elecraft T1 and ICOM IC-705

2021-01-26 Thread Wayne Burdick
t; Our adapter is housed in a custom enclosure that measures only 2.5 x 1.2 x >> 0.4”. >> >> 73, >> Wayne >> N6KR >> >> >> elecraft.com >> >>>> On Jan 26, 2021, at 12:48 AM, Björn Ekelund wrote: >>> >>> Thinking

Re: [Elecraft] T1 cable for the IC-705

2021-02-27 Thread Wayne Burdick
In progress. Wayne elecraft.com > On Feb 27, 2021, at 1:57 PM, William Combs via Elecraft > wrote: > > Is there any update on the T1 control cable for the IC-705? > > Bill > W8BC > > > > __ > Elecraft mailing list > Ho

Re: [Elecraft] Elecraft T1 and ICOM IC-705

2021-04-27 Thread Erik Tkal
ed in a custom enclosure that measures only 2.5 x 1.2 x > 0.4”. > > 73, > Wayne > N6KR > > > elecraft.com > >> On Jan 26, 2021, at 12:48 AM, Björn Ekelund wrote: >> >> Thinking entirely egoistic, I think Elecraft should manufacture this > g

Re: [Elecraft] T1 cable for the IC-705

2021-05-05 Thread Don - W6CZ
Waiting with breath like bait... ;) - Don W6CZ DM07bk -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: m

Re: [Elecraft] T1 cable for the IC-705

2021-06-02 Thread MaverickNH
Me too. I’m fine with folks running QRP transceivers off 500W amps and all, but I use them at <10W, so the T1 is perfect. Other options take up too much space/weight in my backpack! Bret/N4SRN -- Sent from: http://elecraft.365791.n2.nabble.com/ __

Re: [Elecraft] T1 cable for the IC-705

2021-06-02 Thread Wayne Burdick
We hope to get back to work on this soon. We have a prototype -- just needs some firmware. 73, Wayne N6KR > On May 5, 2021, at 12:42 PM, Don - W6CZ wrote: > > Waiting with breath like bait... ;) > > > > - > Don > W6CZ > DM07bk > -- > Sent from: http://elecraft.365791.n2.nabble.com/ > _

Re: [Elecraft] OT FS: Elecraft T1 Tuner - Assembled

2022-04-04 Thread James Bennett via Elecraft
Just for clarification - this T1 was not factory assembled - I built it from a kit a while back. > On Apr 4, 2022, at 11:07 AM, James Bennett wrote: > > Got another item in the shack that has moved to my “un-needed at this time” > list: an Elecraft T1 tuner, with printed manual

Re: [Elecraft] OT FS: Elecraft T1 Tuner - Assembled

2022-04-04 Thread James Bennett via Elecraft
Folks, the T1 has been sold - thanks to all who responded. I’ll probably have more goodies to post in the near future. > On Apr 4, 2022, at 11:07 AM, James Bennett wrote: > > Got another item in the shack that has moved to my “un-needed at this time” > list: an Elecraft T1 tuner,

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