TC2M Broadband HF Antenna


Page last updated on: Tuesday, October 28, 2014 Share on facebookShare on twitterShare on emailShare on printMore Sharing Services3. TC2M Broadband HF Antenna. Martin Ehrenfried G8JNJ has developed an omni-directional antenna with a claimed bandwidth of 2-30 MHz at less than 2.5:1 SWR.  View the TC2M site at http://www.tc2m.info/Read the construction article at http://www.tc2m.info/TC2M%20HF%20Vertical%20G8JNJ.pdf 

via TC2M Broadband HF Antenna.

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This antenna appears to be a kind of “cage” antenna (minus the other half) often seen in broadband 80 meter dipoles.  There are a few AM broadcast antennas that employ a variant of this antenna, such as the folded monopole antenna.  At one time Barker & Williamson made something called a TFTD antenna that closely resembled a folded dipole. This antenna was used by the U.S. military to give broadband HF coverage. Martin’s (G8JNJ) TC2M looks fairly simple to make and gives a reported 2.5:1 SWR from 2 to 30 MHz.  This antenna looks interesting.  It might be worth the time to make one.

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Aloha es 73 de Russ (KH6JRM).

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