They are discontinued, Cambium stopped making them around the beginning of the year. As far as being a better 22 than the 25, that’s “fake news”. Actually I would have to check the spec sheet but I thought they were claiming 23 or 24 dBi.
It seems to be part of a strategy of sharing designs with ePMP but charging more. Customers do seem to like the aesthetics of the 450b dish. Swapping for left-of-pole mounting is a giant pain, especially after you’ve attached the radome. And installers complain about not being able to see the lights. What’s strange is we still use reflector dishes for the 3 GHz SMs. FWIW, we have solved performance issues with the 450b high gain by swapping in a connectorized SM and one of the KP 2 ft Proline dishes, but that’s a big and godawful expensive solution. Strangely the performance increases more than you’d expect from the signal level alone, maybe some kind of sidelobe issue? From: AF <af-boun...@af.afmug.com> On Behalf Of Steve Jones Sent: Wednesday, October 23, 2019 10:23 AM To: AnimalFarm Microwave Users Group <af@af.afmug.com> Subject: Re: [AFMUG] 450SMs i was told theyre not discontinued, just not favored and then something about the 22 vs 25 being a better 22 than the 25 or something for geeks On Wed, Oct 23, 2019 at 10:04 AM Adam Moffett <dmmoff...@gmail.com <mailto:dmmoff...@gmail.com> > wrote: Okay I haven't paid a lot of attention to PMP450 since I've been in a Telrad shop for a few years. It looks like the old style SM was discontinued. The Old SM + Reflector was said to have 25dbi of gain. The replacement 450b "high gain" integrated dish is 22dbi. Are you kidding me? Cambium, why you takin' my db's away bro? -- AF mailing list AF@af.afmug.com <mailto:AF@af.afmug.com> http://af.afmug.com/mailman/listinfo/af_af.afmug.com
-- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
