*Before writing this off do a return loss analysis of the antenna. In my experience I have found that often the antenna will **cover a broader frequency range that the spec says.*
** lh On Mon, Mar 22, 2010 at 10:13 AM, David Jordan <wa3...@comcast.net> wrote: > > > Hi Folks, > > > > Our club has been given permission to use one of the Public Safety antennas > for our 2m repeater. The antenna is a PD-220-3A 150.5-158.5MHz. Our > repeater freq. is 146.745. The antenna is fed with some nice looking Cell > Flex LCF-12-50 ju, hard-line. The PD-200 is one of those totally enclosed > fiberglass antennas; we don’t have funds to pay for a climb to take down or > replace or tweak. > > > > Have two questions: > > > > We think we can live with the power loss if we build a coupler to match the > inevitable high SWR. Can someone point us to a formula to > estimate/calculate both the projected SWR and power loss, etc? WAGs R fine > too. > > > > Is anyone aware of any 2m coupler projects that might work for this > scenario? Our current repeater antenna is in the attic of one of our members > garage at 25ft ASL…this antenna would be 425ft ASL…so even with losses we > expect significantly better performance. > > > > 73, > > Dave > > WA3GIN > > >
