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QRP Automatic Antenna Tuner
Mfr. No: KT-005 Ultra portable QRP ATU ![]() Update: June 13, 2025
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Expected availability:
Mid of June 2025*
KT-005 User & Assembly Manual available! (NEW!) >> Official Release <<
(Last update: June 13, 2025)
Product brochure:
(Last update: January 07, 2025) ---------------------------------------------------------
*) Why does ATU availability keep shifting?
Our policy is to deliver finished products, not initial protypes. Extensive testing and corrections take considerable time. Thank you for your patience. The project is, of course, ongoing.
Why were SMA connectors used in the circuit instead of BNC connectors?
The top priority was maximum miniaturization. Even the smallest right-angle
BNC connector would have noticeably increased the size of the device. In the current design, there is literally no room left inside. It’s recommended to use a convenient BNC-to-SMA adapter to connect the ATU directly to the transceiver. ---------------------------------------------------------
(05.06.2025) The first production units were fully assembled and tested.
Everything looks fine. I will soon be reaching out to those who expressed interest in making a purchase. (28.05.2025) All known bugs have been fixed. If the tests confirm
correct operation, the latest firmware will be uploaded to the units for shipment.
> The first production batch is reserved as a priority for those who have
expressed interest via email. Emails with availability information will
be delivered shortly.
>> The first production series will be available only as assembled devices.
The device is not easy to assembly due to high miniaturization of the components.
We want to make sure that everyone gets properly functioning ATUs.
>>> The first production run is several dozen pieces. We hope there
will be enough for everyone interested!
![]() 07.01.2025: ATU (KT-005) First production units undergoing final testing
![]() ![]() 07.12.2024: ATU (KT-005) series production begins
Price:
- assembled version in the enclosure: $219 or 199 EUR
- kit for self assembly (SMT components populated) + enclosure: $175 or 157 EUR
- kit for self assembly (SMT components populated) without enclosure: $150 or 134 EUR
- enclosure: $25 or 23 EUR
Shipping cost: (please contact directly for a detailed quote; the cost depends on the destination country; use the email provided below)
- European Union: up to 17 EUR
- Outside Europe: up to $45/40 EUR
Questions & Answers:
Q: Why ATU KT-005 project was created?
A: There were no ATUs on the market that were sized to fit the portable TRX QCX® and QMX® series. The KT-005 is twice as small as previously available solutions. Here we have portability without compromise.
Q: Is the visual resemblance to QCX®/QMX® TRX coincidental?
A: No. The ATU KT-005 is designed as an extension to QCX®/QMX® TRX series. Also in terms of visuals. Aesthetics matter. More products from this series on the way (e.g. KT-019 NanoSpeaker; check the datasheet in the bottom section).
Q: Why ATU KT-005 development take so long?
A: Well... The ATU project is much more complicated than it seemed at first. My quality goal is to fix all known bugs and offer a factory quality product, not a product in the prototype phase. I hope this will be understood and appreciated. --------------------------------------
YouTube promotional video (published September 08, 2024):
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NanoSpeaker
Mfr. No: KT-019 Ultraportable high-efficient active speaker for POTA/SOTA activations KT-019 Preliminary User Manual available!!!
Expected availability:
series (black enclosure like KT-005) - end of Q3 2025
>> If you are seriously interested, let us know! The start of serial production depends on customer interest.
Price:
- assembled version in the enclosure: $45 or 43 EUR
- kit for self assembly (SMT components populated) + enclosure: $39 or 37 EUR
- enclosure: $25 or 23 EUR ![]() NanoSpeaker (KT-019) in action (YouTube promotional video):
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Buy
these products NOW on:
> Available offers are visible to users in Europe (EU) only.
>> If you are interested in shipping to other parts of the world, please
contact us by e-mail to determine transport costs. In most cases it will
cost around $35-45.
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Products under development: NCDXF monitor + clock (GPS synchronized) (KT-013)
MK II version of acclaimed KT-003 kit (available Q3/2025)
Antenna Impedance Monitor (KT-014)
Novel real-time antenna impedance monitor (available Q4/2025) ![]() Portable Active Speaker (KT-019)
Compact powered speaker for POTA/SOTA operation (available Q2/2025) Ultra-portable CW Paddle (KT-025)
CW paddle for POTA/SOTA operation
(available Q3/2025) |
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All of our products are proudly designed
and manufactured in Poland.
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