The OARC's 10 m beacon VE3TEN is located a few miles south of Ottawa, near the intersection of Century Road and Hwy. 416. Current equipment consists of a rack mount box containing the transmitter and power supply, a separate rack box with the identifier unit and a Ringo Ranger antenna mounted approximately 50 feet above ground level. The output of the transmitter has been turned back to 11-12 watts and a ducted cooling system has been made to increase the life span of the radio. The beacon operates on 28.175 Mhz and the mode is frequency shift keying. This means that the radio is on at full output at all times but that the transmit frequency is varied by about 700 hz to provide an audio tone shift at the receiver. FSK can be received by a receiver in any mode.
The antenna at VE3TEN was a casualty of the January 1998 ice storms in eastern Ontario,
broken in half and leaning over. Two visits up the tower were made, the first to inspect
the antenna and mounting hardware, the second to remove the old unit and install a
new antenna and mounting mast.
Starting up the tower. It's about 30 feet to the top.
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Most of the way up.
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Almost to the top. That's 3/8 " guy wire, 18" face width tower and a safety rail fall arrest system. Full body harness as well.
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Inspection reveals that the mount is so rusted that it should be replaced.
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The old wooden ladders to get to the roof.
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The VE3TEN beacon radio rack box sitting on top of the rack unit.
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A view down into the rack boxes.
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Tuning the match box so the transmitter won't over heat. This was a stop gap measure so we could remain on the air using the old broken antenna.
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300 watts and up to 3 Ghz .... that's a dummy load!!!
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VE3TEN's backup power source, also runs the landlords .580 Mhz , 50 KW , AM rig.
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The Ringo Ranger being measured out before final tuning
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Richard, VE3UNW assembles the new antenna.
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