Good day Doug. I have a DB dual band antenna similar to what you are describing, it has 4 folded dipoles for two meters, and 8 folded dipoles for 440. These are two on each side of the pipe for two meters and four on each side of the pipe for 440. The diameter of the pipe is slightly smaller for the 440 section. The exact model number is not readable (scraped during mounting or dismounting) but it sounds like what you are looking for. IF this is the same as you desire, mine does have TWO different feed lines coming down to connect to your VHF and UHF radio systems. The pipes are concentric with a wedge shaped mount and held in final position with gravity and hose clamps. Keep us all posted on your endeavors as we are looking for the same scenario for D star here.... starting with the B module and adding C later... gotta recover financially first...
73 Curt W1FSM n3dab wrote: > I know DB made a dual band 150/450 folded dipole antenna (bottom half was > either a DB-222 or the bottom half of a DB-304 and the top half was a DB408 > or top half of a DB-420), which is no longer available. Does anyone recall > whether it was fed with one feed line or two ? I think it was 2 but, I can't > recall the dipole configuration (singles on opposite sides going up, or pairs > at each level). > > I would like to combine a DB-224E (138 -150) with a DB-408 or DB-420 > (450-470) on a single mast, or split the antennas at the mid point and make 2 > antennas with the VHF on the bottom and the UHF on the top, and the reverse > on the second antenna. Has anyone tried this ? What were the results ? The > numder of feed lines (1 or 2) to the antenna is not an issue at this time. > > The combined antenna would be for a 2 Mtr./440 D-Star application becuase of > limited tower space available. > > Comments appreciated > > Doug N3DAB > > > > ------------------------------------ > > > > Yahoo! Groups Links > > > > >
