Pete the simplest method is to shorten the resonance of the antenna before adding the shunt to around 1.9mhz. Then use a variable L to find the correct value. Measure its inductance and replace it with a fixed value of the same. Job done. 73 Clive GM3POI
-----Original Message----- From: Topband [mailto:[email protected]] On Behalf Of N4ZR Sent: 04 September 2019 01:29 To: topband reflector Subject: Topband: inverted-L Thanks to everyone who responded to my message - lots of good ideas. I think my favorite was the one about tapping a shunt coil from both ends, alternately, to bring both the radiation resistance and the resonant frequency in line. -- 73, Pete N4ZR Check out the Reverse Beacon Network at <http://reversebeacon.net>, now spotting RTTY activity worldwide. For spots, please use your favorite "retail" DX cluster. _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector This email has been scanned by BullGuard antivirus protection. For more info visit www.bullguard.com _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
