Wellbrook Magnetic Aerial

[Eddystonepete]

Hi John, The Wellbrook doesnt give very large peaks as you turn it but gives a quite sharp null. If you carefully chose your direction you may not need a rotator!. That said how about using a radio control servo for a rotator?  Remember that you only need 180 deg. rotation. Most RC servos are a bit fast for this job but a sail winch servo is slower and more powerful. They can be driven by a "servo tester", one chip giving a 1 to 2 millisecond pulse every 20 milliseconds. Heres one,

http://www.ebay.co.uk/itm/GWS-Digital-Se...1677285120

I never thought about matching but I wanted a splitter that would feed 2 rxs. This one, the DH-P worked fine

http://www.dxing.info/equipment/rolling_..._bryant.dx

I used a ferrite bead and fine wire. Maybe altering the turns would give matching too. as a splitter it worked very well, only losing about half an S point with no noticeable loss of intelligibility.

Peter