DU1AU | Philippines

This page also features my other hobby, amateur radio. I transmit and receive radio signals to and from orbiting satellites and fellow enthusiasts from around the world using homebrewed radio equipment. I have a license to transmit signals using the callsign DU1AU.

Fully-automated DIY satellite tracker and antenna system

My interests include satellite communications, Morse code, and building home-brewed equipment such as antennas and automated motorized satellite tracking systems.

  • HF Antenna: Center-fed fan wire dipole antenna (resonant to 40 m, 20 m, and 15 m bands)
  • Satellite Antenna: 4-element cross-Yagi VHF and 8-element cross-Yagi UHF antenna on an automated azimuth-elevation tracker
  • VHF/UHF Antenna: Dual-band mobile antenna 1/4 wave VHF and 6/8 wave UHF Diamond SG7000, homebrewed VHF-UHF dual band dipole antenna
  • Radio Transceiver: Kenwood TMV71A (full duplex VHF/UHF), Yaesu FT-2900R (VHF), Icom 718 (CW and SSB in HF), Yaesu FT60 (VHF/UHF), and Wouxun KG-UV9DE (VHF/UHF)
  • Accessories: Home-brewed straight key, home-brewed electronic iambic keyer with Uni-Ham paddles, home-brewed desktop microphone using a Sony PX470 voice recorder, home-brewed TNC for APRS operation, Tokyo Hy-Power VHF/UHF amplifier with RX preamp, Air-Spy mini SDR with Air-Spy HF upverter and NooElec LNA
  • Calling frequencies: 7.095 MHz (LSB), 7.102 MHz (CW), 21.074 MHz (FT8), and 145 MHz (FM)
  • Grid: PK04lk

The country where I live in, the Philippines, is a beautiful island nation with pristine beaches and turquoise waters. If we have made contact, I would like to receive a paper QSL card, and will send you one as well. I use LOTW for electronic QSL. For my mailing address, please head to my QRZ page.

Coron, Palawan

DIY Projects | Amateur Radio
Diwata 2 Satellite Test
DIY HF Antenna (40 m, 20 m, 15 m multi-band fan dipole)
DIY VHF-UHF Antenna (2 m, 70 cm, dipole)
DIY Satellite Antenna
DIY Portable Satellite Radio Setup
DIY SATNOG Satellite Tracker
DIY SARCNET Satellite Tracker
DIY Antenna Rotator
Receiving NOAA Satellite Images
DIY Arduino Terminal Node Controller (TNC)
SSTV Images from the International Space Station (ISS)
Satellite Communications Demo with Phil Navy
DIY Morse Code Straight Key and Dual-Paddle
View all posts about amateur radio

Night Sky in Focus | Astronomy and Amateur Radio
© Anthony Urbano | Manila, Philippines

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