Hi,
The 1550 is my main problem now. According to Cisco the 802.11g cell or range should be 180m
(ETSI version). However I already deployed several of 1550s and the range is not even near that number, more like 50-60 in best case.
1550 currently support only a single antenna type (omnidirectional) so one cannot fail on poor antenna selection.
The height on which 1550s are installed is 4-10 meters depending on location. Signal is bad for the 2.4GHz radio (5 Ghz even worse because of higher freq).
When I say signal is bad i mean that RSSI values on client devices (PC, MAC, phone, tablet) are poor (-70dbm and worse) already 30 meters away from the radio.
First all data rates were enabled and then i disabled the lower ones up to 11mbps. I played with the rates but it doesnt seem to have a significant impact (although it should)
The antenna gain settings for access points in WLC were first set to match actual gain of the installed antenna but then i put a value of 1 hoping WLC will increase the power (EIRP = tx + gain - cable loss).
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Regarding installation of 1262, it is always installed on ceiling (below the ceiling), the height is 3-4 meters, antennas and cisco logo are facing down. Actually 1262 with omni could be also positioned on side walls with almost similar signal quality but we are not doing it.
