John, If your intention is to cover the building interior, do not install any rooftop antenna. Use Radiax or similar "leaky" cable vertically through every floor. You should use a central vertical chase, such as an elevator shaft, being careful to keep the cable well away from parallel metal rails or HVAC ducting. This cable must be plenum rated, since it must NOT be installed in conduit, and there are strict rules on vertical cables in elevator shafts and chases. Be prepared to deal with fire inspectors and other bureaucrats who are clueless about radio- but treat them kindly, for they probably are really looking for a safe installation.
Above all, read the Radiax installation instructions carefully, and follow them to the letter. Radiax performs admirably when installed correctly, but it will fail miserably if installed with makeshift hangers. 73, Eric Lemmon WB6FLY Maire Company wrote: > what do you guys know about the installation of radiating cable for a > repeater in a building. I have a 5 story building and sub basement. > So it is like 6 stories. Thinking of putting the repeater in the > lower level and installing the cable up to the roof. On the roof > thinking a DB-408. (or would a dummy load be used) This would be a > UHF repeater possible 2 watts or other low power use. The goal is to > cover the floors as there are a lot of cement and metal. At this time > they have a repeater on the roof but the lower floors are dead and > there is very little receive in the sub basement. The current > repeater is 40 watts. No preamp. Or any other thoughts would > help. John > > > > > > > --------------------------------------------------------------- > Yahoo! Groups Links > > * To visit your group on the web, go to: > http://groups.yahoo.com/group/Repeater-Builder/ > > * To unsubscribe from this group, send an email to: > [EMAIL PROTECTED] > > * Your use of Yahoo! Groups is subject to the Yahoo! Terms of > Service. > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
