Topband: Tuning an Inverted-L

[Dan Bookwalter]

Ok , on to my next dumb question ..... I now have 12 radials anywhere from 125-250' long , as expected my SWR went up , so I lengthened the horizontal part , the overall length is now about 175ft (72ft vertical). I added an air variable cap (not sure of the value , but , it worked great at another QTH) and set the SWR on my Autek RF1 to about 1.3:1 at 1835 , came into the shack and the swr was essentially infinite. When I went back out to the tower I checked the impedance with the RF1 and it was about 560 Ohms , so I then decided to set the impedance to as close to 50 Ohms as I could , I got it down to about 68 ohms at 1840. Now the SWR is 1.6:1 at 1840 , but , the 2:1 swr bandwidth is from 1823 to 1858 , that seems a little narrow to me ?

Suggestions ?

Dan N8DCJ