Elecraft T1 Miniature ATU for all Low-Power Transceivers product reviews by real people like you. Only at – is a Web site dedicated to ham. Elecraft Automatic Tuner, max 20W, ready built. Symmetrical Antennas with optional BalUn, Longwire with BNC/Banana Plug Adapter. Elecraft Automatic Tuner, max 20W, kit. Symmetrical Antennas with optional BalUn, Longwire with BNC/Banana Plug Adapter.

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The T1 has the ability to receive band data from transceiver using a remote cable. This type of bridge is inherently balanced over a wide frequency range and requires no adjustment. The space is even tighter here than on the main board and one must pay special attention not to make any h1.

I have the same setup, and I just send a string of dits. This may be the world’s smallest high-performance, stand-alone ATU. The EF Random wire was around 80 to feet I think The T1 tuned to 1: It’s small, light and I haven’t come across anything that it won’t match. Hope to make my first SOTA this weekend! When I tried to use my tuner init just would not tune. Fed from a banana plug to bnc adapter directly on the T1. Ive had mine for a few days. Each inductor and capacitor has its own DPDT relay, with the individual sections of each relay placed in parallel for reliability.

The tip carries the data about the band, the ring is used to trigger a retune of the ATU and the sleeve is the ground. If one whishes more accurate reading, the Info feature can provide it. I checked the output diodes to see if it had been over driven but they seemed fine. Using the Info feature one can obtain detailed information about the full state of the tuner and this includes which coils and capacitors are currently used. I used a few different configurations of antenna and ran the rig at around 8 to 13 watts output When the band changes, it turns on the T1 and sends it band information, allowing the antenna to be automatically tuned to the new band.


This also applies when winding L It is a kit, it is fun to build, it works good, it has excelent documentation, it is relatively cheap and it has open design with no secrets except maybe the firmware.

Maybe the antenna is bad, I thought. In this way, SSB voice as well as any other modulation method can be used for tuning, with little loss of accuracy compared to the use of a constant carrier. Please share your experiences. I know a transmatch will always Introduce some loss based on match differences, but they did a good job with this tuner. A Stockton bridge circuit is used to detect forward and reflected power, from which the SWR is calculated.

There were very minor circuit changes between the first and second edition 2Bs, nothing of any significance.

I can’t remember when I changed the battery last time. Surely you can have it lying anywhere, but if you want to see the elercaft panel and access the controls, you will have to make some sort of mount for it. I went ahead and ordered another T1 assembled and I am hoping to be luckier this time. Tuning The initial tune-up on a band can take several seconds.

Elecraft T1 Automatic Antenna Tuner

The T1 always tries to find the best SWR and does not stop at 1. It has a good tuning range and tunes very reliable. Anyway, there should be no doubt that if you just follow the very good assembly guide step by step it will work out just fine.

The first two versions were two band, the elecrsft one was board only, the second version included a steel and aluminum enclosure made by TenTec. The T1 is the first Elecraft product that is available both ready-built and as a kit. I built mine from a kit a couple of months ago, and use it with my Xiegu X1M Platinum. Web Hosting by iPage.


Elecraft T1 Automatic Antenna Tuner – OZ9AEC Website

The band is sent to the T1 as a number between 0 and 12 by encoding the four bits and sending them via the tip of the connector. Yes, tuning with 9v would be better than 12v. For power and SWR measurements the T1 uses a directional coupler. The T1 uses a comprehensive, three-stage tuning algorithm to ensure selection of the best of its relay combinations.

It matched my small non-resonant attic loop, which has an SWR of more ellecraft Elecrwft only slightly bigger than a pack of playing cards.

As of writing, remote cable is only available for the FT, but the communication protocol is fully open and documented, and so one could build a remote cable for his or her own QRP rig. My 5W signal received good reports, suggesting that the power is being radiated by the antenna, not dissipated leecraft the tuner.

Automatiktuner Elecraft T1 kit version – QRP-Shop

Attached, please find a few picture of my solution. My assembled tuner was bought in and was lightly used with ND. Hi all, last weekend, I tried several 3D-printable designs for a mount for my Elecraft T1 tuner so that one can directly attach it to a fishing pole or other antenna mast solution. The settings and band are stored, allowing the T1 to return to this setting instantly the next time that band is used.

Very much like the look of it – even just for the better screen and BNC connector!