Yeah, looking at the pattern in the spec sheet for the Cambium antenna, it looks to be about -10db at 120.
On Tue, Feb 23, 2016 at 1:46 PM, George Skorup <[email protected]> wrote: > All I have used is the Laird OEM antenna as well. The null-fill is nice. > It is definitely a -6dB 90/-3dB 65. I have found that it rolls off sharply > beyond 90. > > Cambium claims >32dB F/B ratio. I know Mark @ Amplex has mentioned this > before, short range SMs (like 1/2 mile or so) seem to get crappy downlink > SNR. They are apparently hearing the opposite sector on the same frequency > which points to the F/B ratio. I have seen this as well. I actually put up > a post on the Cambium community about it last night. > > On 2/23/2016 12:24 PM, Kurt Fankhauser wrote: > > Sean, > > Really? I was told the 90 degree cambium sector was actually a 65 degree > sector so you using it at 120 degrees? I would assume there is at least a > 6db difference between the center of the beamwidth and the outer edges at > 120 degrees. > > On Tue, Feb 23, 2016 at 12:50 PM, Sean Heskett <[email protected]> wrote: > >> I've only used the cambium one...works great. >> >> You can actually use it as a 120* sector if you need to, you just loose >> 3db more than at the 90* point. >> >> >> >> On Tuesday, February 23, 2016, Kurt Fankhauser < >> <[email protected]>[email protected]> wrote: >> >>> Has anyone used all three of these antenna choices for PMP450/3.65ghz ? >>> >>> - KP 120 degree 3.65ghz slant sector >>> - Cambium Stock 90 degree 3.65ghz slant sector >>> - Alpha Wireless 120 degree 3.65ghz slant sector >>> >>> And what was your thoughts on all of them? Did any perform worse or >>> better than the other? >>> >>> >>> > >
