Lo-MedFER "NC" Beacon

510.510 KHz

This beacon is operated per FCC Part 15 rules with a maximum input power of 0.1 watt and a maximum antenna length of 3 meters.

1st Reception report for this beacon was made by Mitch Powell, VE3OT, London Ontario     537 Miles

Best DX Reception for this beacon is from Lyle Koehler, KØLR,  Aitkin, Minnesota            1035 miles

Confirmed reception of this beacon has been made by:

27 Jan 2001

  Mitch Powell London, Ontario, Canada   537 Miles 1st Reception on 1st day
17 Nov 2001   Paul Stroud   Raleigh, North Carolina    104 Miles  
08 Dec 2001   Larry Putman Pasadena, Maryland   339 Miles  
09 Dec 2001   Bob Riese York, Pennsylvania   380 Miles  
09 Dec 2001   Bill Farmer Rockville, Maryland   323 Miles  
09 Dec 2001   Lloyd Chastant Marriottsville, Maryland   337 Miles  
10 Dec 2001   Lyle Koehler Aitkin, Minnesota  1035 Miles Best DX
10 Dec 2001   Jim Shaffer Normal, Illinois   309 Miles  
12 Dec 2003   Lloyd Chastant Marriottsville, Maryland   337 Miles (Screen capt)  (16 Dec 03)
15 Dec 2003   Larry Putnam Pasadena, Maryland   339 Miles (Screen capt)  (10 Jan 04)
16 Dec 2003   Steve Dove Elm, Pennsylvania   405 Miles (Screen capt)
16 Dec 2003   Jay Rusgrove Burlington, Connecticut   603 Miles (Screen capt)
14 Jan 2004   Roger Thompson Smithville, Mississippi   463 Miles (Screen capt)
20 Jan 2004   Mitch Powell London, Ontario, Canada   537 Miles (Screen capt)

The MedFER "NC" beacon antenna is a 9 foot section of 2 inch ID aluminum conduit.  The top hat is an old UHF TV parabolic reflector grid that is covered with window screen.  The window screen probably wasn't necessary but this once TV antenna was modified for a microwave antenna by adding the window screen.  Now in it's third life it serves as a top hat.  The conduit is supported by a section of fiberglass which once was the shell of a commercial VHF "Stationmaster" type antenna. 

This view shows the loading coil with the cover lifted.  The coil base is made of 1/4 inch Plexiglas.  Holes were drilled into the base to support the 1/4 inch diameter fiberglass rods that form the basket weave form.  The rods were cut from old bicycle flags.  The coil is wound with 18 gauge silver plated Teflon insulated wire.  A copper ground strap connected to the metal building provides a good ground for the transmitter feed point.  The transmitter final amplifier, a BS170 FET,  is located under the building roof.  The present exciter is an oven controlled signal generator capable of 0.1 Hz frequency increments.



W4DEX Home Page