the wavelength of 900Mhz is ~33.3cm so a quarter wave length is ~8.33cm (~3 1/4 inch). Ponderosa pine needles (and many other pine needles) are around the same 3 1/4 inch length https://en.wikipedia.org/wiki/Pinus_ponderosa
so with water in the needles you have a big 900Mhz RF scattering/reflector ;-) -Sean On Wed, Feb 17, 2016 at 1:47 PM, Sam Lambie <[email protected]> wrote: > So if you have a minute to please explain how evergreen trees are terrible > on 900 mhz, I would greatly appreciate it. > > On Wed, Feb 17, 2016 at 1:14 PM, Chuck McCown <[email protected]> wrote: > >> Ponderosa? Fir? Cedar? >> >> The length of the needles matter. >> >> *From:* Rory Conaway <[email protected]> >> *Sent:* Wednesday, February 17, 2016 12:51 PM >> *To:* [email protected] >> *Subject:* [AFMUG] Cambium 450i 900Mhz >> >> >> Realistically, what kind of distances do you get through these types of >> trees? >> >> >> >> >> >> *Rory Conaway **• Triad Wireless •** CEO* >> >> *4226 S. 37th Street • Phoenix • AZ 85040* >> >> *602-426-0542 <602-426-0542>* >> >> *[email protected] <[email protected]>* >> >> *www.triadwireless.net <http://www.triadwireless.net/>* >> >> >> >> “The ultimate measure of a man is not where he stands in moments of >> comfort or convenience, but where he stands at times of challenge or >> controversy” – Martin Luther King >> >> >> > > > > -- > -- > *Sam Lambie* > Taosnet Wireless Tech. > 575-758-7598 Office > www.Taosnet.com <http://www.newmex.com> >
