We did some comparison tests with comparable repeaters on comparable antennas on the same site, in Dallas, TX, a couple of years ago. Consistently, we were able to communicate via DStar about 10% farther than via analog. This was consistent in all tested directions, and for a variety of mobile systems.
Of course, it's infrequent that you have two very comparable systems to compare to, but we were lucky. As with most mobile radio applications, while you can model performance, the real test is in how it performs when you're out there. Note that the 10% value is consistent with the predicted difference presented by digital process gain. 73 gerry n5jxs n9aa wrote: > > > The is no single answer to your question, Tom. As with any analog > repeater, your ability to get into the D=Star repeater is going to > depend on your antenna, how high it is, and how much power you're > running. It's certainly possible to hit a repeater from the distances > you're talking about, but having an antenna high enough will certainly > make it easier. > > If you can hear the repeater well with your beam, there's a good chance > you'll be able to get into it. > > 73, > Scott, N9AA > > --- In dstar_digital@yahoogroups.com > <mailto:dstar_digital%40yahoogroups.com>, "billyjack2682006" > <billyjack2682...@...> wrote: > > > > Hi this is N9HSM Tom, I am learning alot from this group. I got a > question How can you be be from the Dstar repeater before you drop out? > or How close the Dstar has to be before you can get into. The closer > Dstar is about 50 to 75 miles away. I have a beam. but not the Dstar > radio yet. Also I like to thank the person who put it on radio > reference., Thanks alot for your help.... N9HSM > > > > -- Gerry Creager -- gerry.crea...@tamu.edu Texas Mesonet -- AATLT, Texas A&M University Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.862.3983 Office: 1700 Research Parkway Ste 160, TAMU, College Station, TX 77843
<<attachment: gerry_creager.vcf>>
