You can't really tell because they have not put a scale on the rings in the diagram. There are multiple ways to measure this and report the data. Some programs will report the strongest point on the pattern as zero db and reference the rest of the points in the pattern as negative db which would be below the strongest point. In that way it is a relative measurement to the highest gain. Some programs will report the points in the pattern as the actual gain at that point and that could be is dbi or dbd. It is important to know which they are using. I have seen 900 MHz antennas referenced either way. Looking at this diagram and just scaling it myself this looks to be about 8.12 dbi at the 180 mark in the pattern.
Thank You, Brian Webster www.wirelessmapping.com <http://www.wirelessmapping.com> -----Original Message----- From: Brian Rohrbacher [mailto:[EMAIL PROTECTED] Sent: Wednesday, November 22, 2006 12:41 PM To: Conversations over a new WISP Trade Organization Subject: [WISPA] 900 antenna question http://www.teletronics.com/15-404.pdf What would the gain at 180* be on this antenna. I want to make sure I am reading it right. Brian -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
