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DS5EVU South Korea flag South Korea

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Ham Member Lookups: 2280



If you send QSL card to me, please send E-mail to ds5evu@gmail.com . And then I'll send my detail address.
(When you send QSL to me, please SASE or 2 USD)​


I was born in Korea on Nov. 20, 1979 and QTH is Yongin and live in the 16-floor apartment.
Favorite mode is CW and I have been operating CW since 1997.
CW, it's my life and sometimes go on 40m, 10m and 6m QRP.

My Job is design engineer of antenna and microwave components such as Reflector Antenna for Satellite VSAT,
Corrugated Horn Antenna, Microstrip Array Antenna, Slotted Waveguide Array Antenna,
Phased Array Antenna(AESA RADAR) and Waveguide components (OMT, Polarizer, Rotary Joint, Diplexer and Filter) and so on.

Another hobbies are 3D Printing, Visual Basic programming, Arduino implementation and astronomical observation.


Website : http://arraybeam.wordpress.com   http://ds5evu.tistory.com/


a member of DT0HH(59DX) and SKCC(#5805)


DX Expedition

June. 2014 - 6M6M (Jeju Isl.)

June. 2015 - 6M6M (Gyeonggi-do)

June. 2016 - 6M6M (Jeju Isl.)

June. 2017 - 6M6M (Chungcheongnam-do)





40m QRP, VN-4002 (3.5 Watt)



CW Keyer : DIY - 3D Printed Paddle Keyer (http://ds5evu.tistory.com/521)

[Test movie for 3D Printer Paddle Keyer]

1. 10 WPM : CQ calling
2. 20 WPM : CQ calling & A~Z Tx
3. 30 WPM : CQ calling & A~Z Tx
4. 40 WPM : CQ calling & A~Z Tx


Antenna : Radix RD-S106 V-Dipole (100 Watts)


DIY Callsign plate using 3D Printer

8333113 Last modified: 2017-09-16 11:31:54, 3720 bytes

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