What good would it be to have the folded dipoles (erroneously referred to as loops) constructed if there was no (impedance matching) harness to use with them? For one to use 222-225 dipoles with the harness from a 150-160 DB 224 is just plain stupid. The coax matching lengths and impedance's in the 150-160 harness are no where near being correct to achieve the proper impedance matching and power division for 222-225 dipoles. Has anyone designed, built, and tested a proper harness for use at 222-225? or even measured the coax in the JJ model? Has anyone even measured the impedance of a dipole made for use at 222-225? Or even modeled one?
Allan Crites WA9ZZU --- In Repeater-Builder@yahoogroups.com, "skipp025" <skipp...@...> wrote: > > > > I'm looking for a DB224-JJ. They are becoming hard to > > find, even from manufacturers. I would also consider > > a Hustler HD6-22225 or something similar to that. > > If someone has the dimensions for the 224-JJ Loops and maybe > the spacing distance... I think I can get them made. A local > (to me) Ham has made a metal forming jig for loop antenna > materials and is currently cranking out 440 loop antennas like > crazy. I could get him to re-size the jig and crank out some > 224 MHz loops with their mounts. Anyone have the "JJ" info > available? > > > I'm currently using a Hustler G7-220 side mounted, which > > works OK, but looking for something that could be top > > mounted. > > I've got a G7-220 Tower Top Mounted and it works killer (good). > > > Having problems getting coverage in the areas I need > > due to shadowing from the tower. Any help or suggestions > > would be greatly appreciated! > > Changing the spacing of the antenna to the tower would modify > the pattern. > > s. >
