How high is the tower this is all on? If you run the calcs for line loss, even at 5 gig, up to 100' of coax isn't horrible much of the time. I'm putting more and more radios back on the ground these days.
LMR 600 or 900 can pay for it's self in a climb or two. laters, marlon ----- Original Message ----- From: "Mike" <[email protected]> To: "WISPA General List" <[email protected]> Sent: Thursday, October 29, 2009 6:04 PM Subject: [WISPA] Fault tolerant tower deployment >I have been thinking of putting together a fully fault tolerant tower >setup. > > 1 antenna; two radios. Separate CAT5, separate box. If one radio > failed, the other would come on-line. The replacement climb would be > taken out of the EMERGENCY category. > > A complete system would be a 3) 5.8 120 degree sectors, plus 3) 2.4 > (or 900 MHz) degree sectors. 6) small waterproof enclosures would > contain a router and one of each radio. > > I know on some of the MT router boards there is a fan header that > could be used to energize a relay. Microwave relays are readily > available and have acceptable insertion loss. Would a stripline > divider like Cameron suggested in another thread be the answer > instead? Passive solutions are always better. If the antennas were > dual-band, wind load on a tower could really be lowered. Besides > redundancy, consolidating wind load would be my goal. > > Has anybody done anything like this? Can't seem to find any on the net. > > Am I mad? Mike > > > > > -------------------------------------------------------------------------------- > WISPA Wants You! Join today! > http://signup.wispa.org/ > -------------------------------------------------------------------------------- > > WISPA Wireless List: [email protected] > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
