I don't think the PMP team really ever understood form factors.
----- Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP ----- Original Message ----- From: "Gino A. Villarini" <[email protected]> To: [email protected] Sent: Friday, July 28, 2017 2:04:25 PM Subject: Re: [AFMUG] Cambium 450b specifications Ouch! Lol From: Af < [email protected] > on behalf of Josh Luthman < [email protected] > Reply-To: " [email protected] " < [email protected] > Date: Friday, July 28, 2017 at 2:22 PM To: " [email protected] " < [email protected] > Subject: Re: [AFMUG] Cambium 450b specifications EPMP team showing the PMP450 guys how it's done *flex* Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 Gino A. Villarini President Metro Office Park #18 Suite 304 Guaynabo, Puerto Rico 00968 On Fri, Jul 28, 2017 at 1:47 PM, Jeff Broadwick - Lists < [email protected] > wrote: First one will look a lot like the Force 180. List is $299. Full band, full speed. Second one will look like the Force 200 (scheduled for October). List is $349 IIRC. Jeff Broadwick ConVergence Technologies , Inc. 312-205-2519 Office 574-220-7826 Cell [email protected] On Jul 28, 2017, at 1:03 PM, Gino A. Villarini < [email protected] > wrote: <blockquote> What is the 450b? On 7/28/17, 12:55 PM, "Af on behalf of Matt Mangriotis" < [email protected] on behalf of [email protected] > wrote: >Joe - I just answered your forum post... but might as well repeat and add >to it here too. > >You guys are right in that the combination of the two factors are what >matters to the modulation that the radio will achieve. You have to be >above a certain absolute power level (RSL), but ALSO have enough distance >(SNR) above the noise to decipher the bits. That is, even if you're >receiving the intended signal at -55, but have noise at -70, the 15 dB >separation (i.e. SNR) isn't enough to allow for 256QAM modulation. > >Regarding sensitivity levels, the easiest place for me to find these is >in the Link Capacity Planner Tool: > https://support.cambiumnetworks.com/files/capacityplanner/ > >You can input the radios you're using and it'll spit those out. > >During final product testing, we've determined that the 450b is >equivalent to the 450i SM in these specifications, so until that tool >gets updated with official numbers (which may vary slightly), I would use >that. > >Hope this helps, >Matt > > Gino A. Villarini President Metro Office Park #18 Suite 304 Guaynabo, Puerto Rico 00968 -----Original Message----- >From: Af [ mailto:[email protected] ] On Behalf Of Joe Falaschi >Sent: Friday, July 28, 2017 11:49 AM >To: [email protected] >Subject: Re: [AFMUG] Cambium 450b specifications > >Sure it would. We have some links reporting a SNR above 32db, enough to >get 8x but are weaker than -56 signals. So both matter. > >Joe > > > >> On Jul 28, 2017, at 11:44 AM, Chris Wright < [email protected] > wrote: >> >> Wouldn't SNR play a bigger role than general signal level? What good is >>-67.8dBm if the noise floor is -75dBm? >> >> Chris Wright >> Network Administrator >> >> >> -----Original Message----- >> From: Af [ mailto:[email protected] ] On Behalf Of Joe Falaschi >> Sent: Friday, July 28, 2017 9:28 AM >> To: [email protected] >> Subject: [AFMUG] Cambium 450b specifications >> >> We¹re looking at some questions of why certain links are at certain >>modulations (uplink is better than downlink). It¹s explained by the >>spec sheet of the current equipment and RX sensitivity. Basically the >>450M AP can do more with less signal than the CPE can. Specs below. In >>any case we were then wondering what the new 450b RX sensitivity would >>be. There is a spec sheet on the Cambium website but this isn¹t listed. >> Anyone have this information? >> >> 450M AP RX sensitivity >> 1x = - 93.5 dBm >> 2x = -88.6 dBm >> 4x = -81.5 dBm >> 6x = -75.9.0 dBm >> 8x = -67.8 dBm >> >> 450SM RX sensitivity >> 1x = -84 dBm >> 2x = -80.5 dBm >> 4x = -74 dBm >> 6x = -66.9 dBm >> 8x = -56 dBm >> >> 450i SM RX sensitivity >> 1x = -85.9 dBm >> 2x = -81.5 dBm >> 4x = -75.8 dBm >> 6x = -69.3 dBm >> 8x = -61.6 dBm >> >> Joe Falaschi >> e-vergent >> > </blockquote>
