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On Sunday 17th November Maxwell VK5AC and John VK5DJ restored the beacons to their home at Mt Graham.
Maxwell had conducted considerable work on the beacons. This involved preventing some instability on 1296.550 MHz and a failed amplifier module on 432.55MHz. The fans had also seized. The DTMF control was checked.
At the site Maxwell installed an adapter that allowed audio to be extracted from the 146.2MHz receiver and conveyed to the DTMF chip in the beacon box.
Some re-arrangement of the boxes was also made while on site. The repeater and link system is now on top and the beacons below. This permits easier access to all the equipment.
From the top:
Link System on 430.475 with antenna to The Bluff (VK5RMG). Link system on 440.025 with antenna to Mt Benson (VK5RKN)
Repeater 146.2 in/146.8 out. this repeater is running on temporary antennas at present but providing reasonable coverage.
Controller for Beacons on 144.550, 432.550 and 1296.550MHz
Amplifier stages for beacons
Note 1296MHz is currently off due to antenna failure.