Welcome to the home page of Ham Radio Station OP4K    

Primary call ON4JZ
Other callsigns used OO4JZ - OQ4JZ - OR4JZ - OS4JZ - OT4JZ and OT5A (contest team Lier M/M) 

Ex callsigns ON1BZJ - ON4AJZ





 Rig    Yaesu FTDX-101MP
 Amplifier    Acom 2000A
 Antenna switch    Acom 2000SW
 Switch controller    Acom 2000S
 Microphone    Heil PR-781 + boom mount PL2T + shock mount SM-2

   18 element Optibeam OB18-6 on top of a 10 story  apartment building @ 50 meters / 164 feet
                   * 3 element on 40 meters
                   * 4 elements on 20 meters
                   * 4 elements on 17 meters
                   * 4 elements on 15 meters
                   * 4 elements on 12 meters
                   * 7 elements on 10 meters  

   2 element Optibeam OB2-30 on top of a 10 story apartment building @ 53 meters / 174 feet  

   dipole (inverted V) on top of a 10 story apartment building @ 50 meters / 164 feet (thanks Jim ON4DS/OP5T)

   A top loaded T was build with DX Wire, vertical space of 26,50m @8m over ground and
   with only 1 radial of 37m long (thanks Jim ON4DS/OP5T)


 Rig    Yaesu FT-8800 (VHF/UHF FM only)
 Amplifier    Tono 2M-130G 150 Watts output 
 Antenna's    2M + 70 cm G.P. Comet on top of a 10 story apartment building @ 54 meters / 177 feet 

6 meter

 Rig    Yaesu FTDX-101MP
 Antenna's     5 el Optibeam OB5-6 @ 45 meters / 150 feet


 Rotator    Heavy duty double worm (no commercial rotator) for HF beams
   Yaesu G2800DXC for 6m
 Rotator clamps    Full saddles model ON5OT Marc (SK), manufactured by ON6IQ (SK)
 Computers    NETWORKED
   Intel NUC I7 11th generation 32Gb RAM M.2 Samsung 500Gb + Samsung 500 Gb + 1Tb SSD
   Intel NUC I5 10th generation 16Gb RAM M.2 Samsung 2 Tb SSD
 Printer     HP LaserJet PRO M283fdw MFP
 Station interface     MicroHam
    MicroKeyer III
    Station Master SM
 Logging program     Ham Radio Deluxe - HRD  FT8 + FT4 - WSJT-X
 Contest program     N1MM+
 Weather station     Davis Vantage Pro 2 cabled
 Internet     Broadband via cable (Fibernet) Telenet


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Ziegelshiffer Joe OP4K 2021 - Last update October 10, 2022