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A CB antenna definitely will not work on AM BCB, but the Rangemaster doesn’t use a CB antenna per se, just the 102″ whip. The 102″ whip serves as the radiating element, similar to the 9 foot (108″) copper pipe on the Manteca Magnum.
The Magnum uses an air coil for matching and the pipe for a radiator. I believe the Rangemaster has a toroidal matching coil built into the final stage of the XMTR, and uses the whip as a radiator.
Probably should ask [url]http://www.am1000rangemaster.com/[/url] Kieth Hamilton, the manufacturer of that unit, to get the definitive answer, but the toroid coil/whip radiator approach is used by several transmitter designs, including Rangemaster, the late James Cunningham’s transmitters and the [url]http://www.part15.us/modules.php?name=Reviews&rop=showcontent&id=5[/url] Wenzel unit.
What’s best? Who knows? Some insist the toroid/whip approach doesn’t work, others state flatly that the air coil is useless
I say hook the mother up, put some fire in the wire and see what works for YOU! 8)