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HL1SB South Korea flag South Korea

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Name(First): Jeong Hyeon

Name(Last): Yu

Handle Name: Yu

Ham Radio since 1979

(XYL: HL1SBL , Name: Hee Jin, Since 1993)

E-Mail: hl1sb@naver.com


TRCV: FTDX-5000(PWR:200W)

Amp: VL-1000(PWR:1KW)

(Others equipments for portable & mobile operation : IC-7000, FT-817)

Ant: Dipole for 80m/40m band

        V-diple for 40m/20m/15m/10m/6m band

        Long wire with tuner MJF-998RT for 10/18/24Mhz band


Condenser Type: tube & fet hybrid microphone LCT-940(LEWITT)

Condenser Type : Order made tube type microphone

Condenser Type: beta-87a(Shure)

Condenser Type:SE2200a-II (SE Electronics),

Dynamic Type: MD421(Sennheiser)



Mini Vegali paddle installed on the Yamaha mixer by magnetic base.



I believe the UH-7000(Mic amp) is good matched with my lovely FTdx-5000


Inside the mic.

Tube 12AX7 inside.


Other side inserted components.



My old friend "straight key"

I have been together with this key since 1971.

This key is made in London England in 1940s


Inside view of the key.

Inductor for anti-key-click is installed.


Marked "British Made" on the condenser.

I am using this key on my usual CW communication. This key giving me a soft feeling.

I have been accustomed to this key for a long time.




Condenser microphone LCT940

Mixed Tube(12AX7B) & FET, called hybrid type condenser microphone


LCT940 has a abservation window on front side


Power supplyer device for LCT940

This device provided not only power but also PAD selector(0dB/-6dB/-12dB/-18dB),Tube&FET mixer/selector,

directivity selector(5 patterns), low cut frequency selector(0Hz/40Hz/150Hz/300Hz) are provided





The PIC Keyer has a internal "Golden Bright" key-paddle.

The straight key on the top of the keyer and Begali external key paddl in left side of PIC keyer are connected

with PIC keyer to transmitter so that available to use those kyes at same time.



Sloped wire dipole ant for 80m/40m dual band on the rooftop of 15-storey.




Back ground view is the LOTTE TOWER-II building under construction(Left side) and

Seoul Samsung Medical Center.

Lotte Tower-II will be turned into 123-storey landmark near future.



The fifth-tallest building in the world, the Lotte World Tower, has opened in Seoul(April,3th 2017).

The event was celebrated in a ceremony with a fireworks display that lit up the building and the sky.

The 123-story glass and steel structure is South Korea’s tallest building.

It rises 555 meters above theSeoul skyline. (One of the picture for fireworks display

took by myself in front of my house)




1:1 medium power balun for sloped wire dipole ant.

This balun is "Basicom" brand with high realibility.

1.5KW /SSB and 1KW/CW available




Create Design 730V-1AW (V-dipole for 7/14/21/28/50Mhz band )



Broad band vertical non-radial ant CHA250BX-II

Covered from 3.5Mhz to 50Mhz extreamly wide range ant.

The actual SWR is less then 1:1.3 at all band under my installation condition.

In my opinion, this ant would be suitable for quick monitoring for all band .

But also can enjoy DX on cw mode.




Another way to enoy my leasure time is a flying.

I got a flight lecense for LSA(Light Sport Aircraft) in 2002.

I have  more then 500 hours flight experience.



Sunset in the west coast


Almost every week-end I flew with my son.


I love to take a picture from air to earth,  I traind flying technic to my son so I could focus to take a photo.


My son completed his solo-flight when he was 13 year-old.

Following picture is a landing scene during his solo-flight.




"May on Horse"  International horse back riding competition in Daemyeong Vialdi Resort,

(Lense: EF28-300 F3.5-5.6L IS USM, Body: EOS-1D Mark IV)






Korean traditional [Fan Dancing]



Korean traditional food "Samgetang"

Korean ginseng & rice are inside the chiken



8064014 Last modified: 2017-04-30 02:25:26, 11001 bytes

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QRZ Logbook Summary for - HL1SB
Latest Contacts for HL1SB at QRZ.com
dedateband mode grid Country op
JH3CCT 2014-08-23 40m SSB PM74tp Japan MINORU ROKUJO
7K3MER 2014-07-29 40m SSB PM95rj Japan Shuichi (Shu) Kawabe
JE1RXJ 2014-07-27 17m SSB PM95oh Japan ”Tack” Takeshi Goto
YC8TYB 2014-07-19 40m SSB PJ21kl Indonesia John Fitzgerald Rembet
YC8RBI 2014-07-19 40m SSB PJ23so Indonesia RICHARD BYLL ( ICA )
AF6TC 2014-07-19 40m SSB DM13kd United States Mark E Magdaleno
JS6GKS 2014-04-13 17m SSB PL24ci Japan Seiyu Kinjyo
JG2EAT 2014-04-12 40m SSB PM85il Japan KOJI 'KOU' HIRASAWA
BH4XDZ 2014-01-26 40m CW OM94oo China Bin Zhang
JH4PUS 2014-01-25 40m CW PM64nj Japan Yutaka Takiguchi
JA8BWU 2014-01-19 17m SSB PM86tf Japan Hatsuo Kikuta
JG8XTU 2014-01-18 17m SSB QN04ui Japan Youzi Otobe
YN2N 2013-10-30 40m SSB EK71au Nicaragua OCTAVIO MIRANDA L
CE3VM 2013-09-09 40m SSB FF46md Chile Steve Ivovic
CE3VM 2013-09-09 40m SSB FF46md Chile Steve Ivovic

Book Totals: 57 qso's   40 confirmed Get a free logbook at QRZ.COM

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