I take it higher db == better?? On Tue, Oct 9, 2018 at 12:16 PM <[email protected]> wrote:
> Finally got one of the new Cambium units in for testing. It is similar to > my GigE-SS and CAT6-SS in most parameters. Insertion Loss, NEXT etc. But > there is a major difference in Return Loss. > Return Loss measures how much signal bounces back from the far end. On > 100 Mbps Ethernet circuits it doesn’t matter because each pair is simplex. > But with GigE circuits each pair is duplex and any reflected energy can > combine with the desired signal coming from the far end and cause errors. > > Pairs Cambium MTC > 1/2 10.3(db) 30.2 > 3/6 11.6 28.9 > 4/5 10.5 26.3 > 7/8 10.0 25.9 > > *From:* Jaime Fink > *Sent:* Friday, September 21, 2018 11:57 AM > *To:* AnimalFarm Microwave Users Group > *Subject:* Re: [AFMUG] Mimosas surge doesn't help 450 > > > Can only guess at the motivations, but this is only a test they did in > their controlled lab, we haven’t seen this as a problem with that ISP in > the lightning season in the field reported to us, and we of course lab test > at much higher kV levels than the ones they claim generally, the ISP did > their own testing as well with specific radios. So as Chuck said, I’d > consider the source. > > > > Jaime Fink • Mimosa <http://www.mimosa.co/> • CTO & Co-Founder > > > > *From: *AF <[email protected]> on behalf of Josh Luthman < > [email protected]> > *Reply-To: *AnimalFarm Microwave Users Group <[email protected]> > *Date: *Friday, September 21, 2018 at 10:49 AM > *To: *AnimalFarm Microwave Users Group <[email protected]> > *Subject: *Re: [AFMUG] Mimosas surge doesn't help 450 > > > > But why go out of the way to do all this work if it doesn't cause > problems? They're not making enough sales on their own surge suppressor, > which I didn't even know exists... > > > > > Josh Luthman > Office: 937-552-2340 > Direct: 937-552-2343 > 1100 Wayne St > Suite 1337 > Troy, OH 45373 > > > > On Fri, Sep 21, 2018 at 1:37 PM, Jaime Fink <[email protected]> wrote: > > Agree Chuck, and similar anonymous 3rd parties also confirm their largest > customer switched suppliers after extensive testing, and suddenly the > replacement GDT version is ”not recommended” from the Grassy Knoll. > > > > Interesting why nothing was said by the “3rd party” about > interoperability with other radios as it seems rather isolated to a few > radio models that customer happily uses it with… > > > > [image: cid:[email protected]] > > > > Jaime Fink • Mimosa <http://www.mimosa.co/> • CTO & Co-Founder > > > > *From: *AF <[email protected]> on behalf of "[email protected]" < > [email protected]> > *Reply-To: *AnimalFarm Microwave Users Group <[email protected]> > *Date: *Friday, September 21, 2018 at 9:03 AM > *To: *AFMUG <[email protected]> > *Subject: *Re: [AFMUG] Mimosas surge doesn't help 450 > > > > Well... > > > > Consider the source. They have an ethernet problem. Even with no surge > suppressor they have frame check and CRC errors. Most semiconductor based > surge suppressors aggrivate that problem. > > > > Gas discharge tube products don’t. > > While I will agree that they are a bit slower, to say they do not protect > the product is disingenuous at best and totally false at worst. > > > > But the users will be the true test. > > > > *From:* Josh Luthman > > *Sent:* Friday, September 21, 2018 8:23 AM > > *To:* AFMUG > > *Subject:* [AFMUG] Mimosas surge doesn't help 450 > > > > > https://www.cambiumnetworks.com/resource/applications-alert-surge-suppressors/ > > > > How does this apply to yours Chuck? > > Josh Luthman > Office: 937-552-2340 > Direct: 937-552-2343 > 1100 Wayne St > Suite 1337 > Troy, OH 45373 > ------------------------------ > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > > ------------------------------ > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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