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New product!!!

 

 

 

QRP Automatic Antenna Tuner
Mfr. No: KT-005
Ultra portable QRP ATU

Update: January 29, 2025
--------------------------------------
Expected availability: 
series - mid of Q1/2025

All people who sent an email inquiry will receive an availability notification!
>> The first production series will be available only as assembled devices. The device is not easy to assembly the components due to high miniaturization. We want to make sure that everyone gets properly functioning devices.
>>> Final qualifications are now being performed to ensure the product is error-free. The first production run is several dozen pieces. We hope there will be enough for everyone interested!



 (NEW!) 07.01.2025: ATU (KT-005) First production units undergoing final testing


KT-005 User & Assembly Manual available!!! 
(Last update: January 12, 2025) (NEW!)
 
(Last update: January 07, 2025) (NEW!)

 
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).
 
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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!!! (NEW!)
 
Expected availability: 
series (black enclosure like KT-005) - end of Q1 2025

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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SWRduino
Mfr. No: KT-001K (kit)
New tool for RF experiments with Arduino Uno board
RF Dummy Load
Mfr. No: KT-002K (kit) or KT-002A (assembled)
Cost effective HF + 6 m band 50R RF dummy load

KT-001 picture
Features
  • Higly integrated QRP HF band SWR bridge up to 20 W
  • Full compatibility with Arduino™ Uno board
  • Tandem Match configuration for best directivity
  • Only THT components for easy assembly
  • Easy access to measured values (P fwd  and P ref ) from
    ANALOG_IN input section
  • Germanium diodes for best sensitivity
  • Optional trimmers for precise adjusting
  • SMA connectors for size critical applications (optional
    also BNC connectors)
  • Equipped with ISP connector (2x3 pin header)  
  • Only passive components; no current consumption 

Mechanical Characteristics
  • Full mechanical and electrical compatibility with
      Arduino™ Uno Board and LCD 2x16 shields
  • Double-layer PCB
  • Double-sided connectors for Arduino 
  • Compact design: 68 x 54 x 12 mm  

KT-002 picture

Features
  • Cost-effective HF + 6 m band 50R RF dummy load
  • 100 W continuous power handling
  • 300 W peak power handling capability
  • Low VSWR levels up to 54 MHz
  • UC-1 (PL-259) RF input connector
  • Built-in fan for reliable continuous operation
  • 2,1x5,5 DC input connector for the fan supply
  • THT components for easy assembly

Mechanical Characteristics
  • Compact design: 80 × 80 x 75 mm (with fan)
  • One layer PCB for easy components assembly
  • Solid aluminum baseplate for the input connector




------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------
NCDXF/IARU Beacon Monitor
Mfr. No: KT-003K (kit) or KT-003A (assembled)
Useful tool for monitoring NCDXF/IARU beacons

KT-003 picture
Available from June 2023!

Features

    • Usefull tool for quick HF propagation condition check
    • Time synchronized with built-in GPS receiver
    • SYNC LED for monitoring synchronization state
    •
CTRL button for band change
    • External DC_IN connector
    • Optional battery operation: 3x AAA (holes for a battery holder)
    • Current consumption: 60 mA @ 9.0 V
    • Input voltage range: 5.5-18.0 VDC
    • THT components only for easy assembly

Mechanical Characteristics

    • Metalised front panel with set of LEDs and CTRL switch
    • Dimensions: 140 x 90 x 25 mm 
    • Two layers PCB
    • Wooden enclosure available (sold separately)

Application

    • Useful tool for easy HF propagation monitoring
    • Part of the radio shack 


KT-003 review on eHam.net: KT-003 Review

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NCDXF/IARU Beacon Monitor
Mfr. No: KT-003E
Wooden enclosure for KT-003 kit
Features

    • Laser cut plywood housing (3 mm thickness) with mounting holes and metal spacers 
    • Supplied in parts. Requires gluing.
 
CWduino QRP HF CW Transmitter
Mfr. No: KT-004K (kit)
Superportable CW transmitter for Arduino Uno board with keyer input

kt004

Features


    • Highly integrated CW transmitter compatible with Arduino Uno board
    • HF band coverage: 80, 40 and 20 m (depends on version)
    • Class-E topology for high efficiency
    • Built-in 2nd harmonic notch filter to meet CFR requirements (-43 dBc)
    • 500 mW RF output power from 5 VDC Arduino’s power supply rail
    • 2000 mW RF output power at 9 VDC
    • Transmitter keying available from pin PD4 (IOL group)
    • Precise frequency adjustment via trimmer
    • Keyer input connector (mini-jack)
    • Equipped with SMA connector for size critical applications
    • Equipped with ISP connector (2x3 pin header) 
    • Most components are THT for easy assembly
    • Example projects for Arduino: CW Beacon and CW keyer available free for download
     
Mechanical Characteristics

    • Fully mechanical and electrical compliance with Arduino™ Uno board
    • Double-layer PCB
    • Compact design: 68 × 54 x 12 mm

Application

    • Board for experiments with class E amplifier
    • Experimental CW  transmitter controlled from Arduino
    • Automatic keyer with integrated TX stage
    • Part of Arduino's controlled beacon (in CW mode)
    • Battery supplied experimental TX module
    • Part of a portable CW transceiver







  


























 
Buy these products NOW on:    
    or     ebay.com

> 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.

 



NEED SUPPORT...?
>> For technical, quotation or after-sales questions, please contact us:

 
 
 

Products under development:

 
Portable Active Speaker (KT-019)
Compact powered speaker for POTA/SOTA operation
(available Q1/2025)

Antenna Impedance Monitor (KT-014)
Novel real-time antenna impedance monitor
(available Q2/2025)



FAQ'S

Q: Is the printed manual attached with the kit?
A: Yes, every kit is shipped with a printed instruction/assembly manual.

Q: How are the sets secured during transport?
A: Each set is packed in a separate cardboard box. We do not ship kits/devices in bubble envelopes.

Q: Did you offer assembled boards?
A: For kits which are the most popular we offer an assembled version.

Q: What is the estimated international shipping costs?
A: In most cases it is in the $30 to $40 range. 
Please contact us in advance to arrange the details. We use DHL and FedEx services.


DOCS & DOWNLOADS
KT-001 SWRduino

Example file for the Arduino Uno and SWRduino board available in the Application Example document -->
PDF FileKT-001 datasheet [ENG version] 


PDF FileKT-001 SWRduino - Przyklad aplikacyjny [POL version]
KT-002 RF Dummy Load PDF FileKT-002 datasheet [POL version]
PDF FileKT-002 datasheet [ENG version]
KT-003 CW Beacon Monitor
PDF FileKT-003 datasheet [ENG version]
KT-004 CWduino

Example files for the Arduino Uno board available for free download:
- CW beacon
- CW keyer

>> Start your own project with ease!
PDF FileKT-004 datasheet [ENG version]
PDF FileKT-004 datasheet [POL version]  

arduino_icon
KT-004 example files for Arduino
KT-019 Nano Speaker (NEW!)
(Preliminary version)
PDF FileKT-019 datasheet [ENG version]
(Preliminary)

 KT-005 Automatic Antenna Tuner (ATU) - User Manual for assembled version 

 PDF FileKT-005 datasheet [ENG version]

(Preliminary)

 




 


All products are proudly designed
and manufactured in Poland.


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