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From: X Member
Date: 03 Apr 2003
Time: 15:07:23
Remote Name: 213.101.69.220
Alan and Rick Alan wrote in his message above: ”Over perfect ground the antenna was of course 100% efficient because I assumed no losses, but the bandwidth was only 600Hz at 2:1 SWR. To pad out the bandwidth to the minimum requirement of 10kHz for AM broadcasting would need added resistance, reducing the efficiency to 6%.” It would be very interesting if Rick could give us the BW for 2:1 SWR of his EH-Antenna. Together with the size of the device and the operating wavelength , Alan can do a calculation with his computer program and give us the corresponding efficiency for those data. Regards Håkan