OH3RTR 6M Repeater Data


Channel
  • R28
  • 51.950 MHz output
  • 51.350 MHz input
    • Receiver
  • Location: Hervanta water tower, KP11WK
  • Antenna: Vertical dipole at 220 m asl / 65 m agl
    • Transmitter
  • Location: Tampere University of Technology, KP11WK
  • Power: 50 watts
  • Antenna: Vertical dipole at 184 m asl / 65 m agl
    • RX-TX Link
  • Low power NBFM link at 433.975 MHz
  • Radio equipment: Modified from Japanese Kyodo BSR80 and BSR420 base stations
    • Controller
  • RYYDLAB(tm) 8032 card by OH1NPK
  • Firmware by OH3NYB
  • Full DTMF remote control of operating parameters as well as DTMF user functions.
    • Duplex Filters
  • Not needed due to the concrete apartment buildings that provide more than 110 dB isolation between the receiver and transmitter antennas. However, we use a home made heavy duty low pass filter with more than 70 dB attenuation at 100 MHz to protect BC listeners.
    • Coverage
  • The repeater provides mobile coverage inside a 50 to 70 km radius. Stations as far from the U.K. have been worked with sporadic E propagation mode.



    • Places to go from here:
    Go on to the OH3TR web pages. Go back to the GB3AM Home Page; Latest available information about UK 6M repeaters from my update page; Some pictures taken on site at GB3AM; An insight into the hardware in use at GB3AM; the history of GB3AM.

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    Webmaster: Iain Philipps - G0RDI

    Note: This page is Copyright (c) 1997, 1998 Iain Philipps. If you must copy information from it, you are free to do so PROVIDED you acknowledge the source. A much better thing to do is provide a link to it!

    Last updated:- 16 February 1998