VHF BEACON DO0JT

(formerly DB0JT)

144.428 MHz CW

Wildberg 785 m above sea level
N 47 49.348 E 012 46.263

Locator: JN67jt

Technical Information

Operator: DO7DH (formerly Volker DJ8QP sk)

Technical support: DL8MCG

Transmitting power (RF): 1.5 Watt

Frequency generation with temperature-stabilized crystal

Antenna: Four-element array (8dBd) from Kathrein, horizontal opening angle 58° horizontally polarized - beam direction 2° (North)

Coaxial cable: RG213, length 4m

Station Images

• Left: the "new" 2m antenna - since July 6, 2007
• Right: the antenna of DB0INN: 432.883MHz
• On air since August 19, 2007

• Left: DO0JT - Right: DB0INN

• DL8MCG adjusting the frequency

• DO0JT frequency processing and pre-amplification stages

Antennas as of May 2020 - from top left to right:

• Mount for 10GHz beacon - currently under repair
• Multiband Ring Loop: 23cm, 13cm, 9cm, 6cm (currently no beacon available)
• Reflector to DB0QP 5.8 GHz
• DB0INN broadband dipole 6 dBd and SSTV camera (438.550MHz)
• DO0JT four-element array 8 dBd (144.428MHz)
• DB0INN broadband dipole 6 dBd (432.483MHz)
• HAMNET 13cm user access point
• HAMNET antenna to DB0MBG 5.8 GHz

Current News

• Federal Network Agency inspection in autumn 2015 - without any issues

Planned Upgrade of the Beacon Site in 2025

Data Transmission via HAMNET to the Internet Operational data of the PV system Weather data

Installation of an APRS-LoRa-iGate with high-quality 70cm cavity filter to suppress beacon signals