Thanks Fred. I will see what I can find. Tim KB2MFS
--- In Repeater-Builder@yahoogroups.com, "FHS" <[EMAIL PROTECTED]> wrote: > > Tim: Try and get an old DB, Antenna Specialist, or Phelps Dodge base station antenna catalog. They have some curves that are fair approximations of side mount antennas on small surface towers(EG. Rohn 25G,45G, 55G). Most mfg. had recommended 1/4 wavelength between the antenna and the tower. On large surface towers you should be a couple of wavelengths off of the tower and even then you will have some deep nulls in the coverage. > Fred W5VAY > ----- Original Message ----- > From: Tim and Janet > To: Repeater-Builder@yahoogroups.com > Sent: Friday, March 02, 2007 8:26 PM > Subject: [Repeater-Builder] Tower to antenna spacing > > > > What is the standard spacing for a VHF antenna side mounted on rohn 25 tower? I found a page on repeater builder that showed 1/4- 1/2 wavelength with a null behind the tower. I don't want to mount it any further than 4' from the tower but of course I would like to minimize the influence the tower has on the pattern. Anybody have a suggestion or a good source (link) of information? > > Thanks. > Tim KB2MFS >
