It’s no longer on their website. Curious what the replacement cable is Jon Langeler Michwave Technologies, Inc.
> On Jul 21, 2018, at 8:17 AM, Jaime Solorza <[email protected]> wrote: > > Shireen cable is DC-2022 we used.. > > Jaime Solorza > >> On Fri, Jul 20, 2018, 9:42 PM Forrest Christian (List Account) >> <[email protected]> wrote: >> My guess is that it is likely easier to do the right thing with the >> liquidtight conduit. >> >> In a high rf environment one of the best things you can do is to create a >> faraday cage consisting of the metal enclosure, the shield around the cat5 >> cable and the radio shielding/metal enclosure. If the shield is continuous, >> then the rf signal won't be able to enter the twisted pairs themselves. >> >> In a shielded cat5 environment, you have to take care that the shield itself >> is terminated at the entry of the metal enclosure. This is either >> accomplished though stripping the shield back and connecting it directly to >> a metal clamp of some sort at the entry point, or some sort of grounded >> shieled waterproof feedthrough coupler. >> >> If you use a metal conduit all the way from the box to the radio, this >> faraday cage will largely be automatically generated, especially if the >> radio is in a metal enclosure such as a 450i. Even if the radio isn't in a >> metal enclosure, as long as the gap is very small, you'll end up with much >> of the same benefits. >> >> If you are using a metal enclosure for your electronics, one of the worst >> things you can do is to bring the shields inside the metal enclosure without >> grounding them at the entry point. The shields can become little >> reradiating antennas inside the enclosure if you don't ground them at the >> entry point. >> >> My preference at high rf sites is to ground the shield at a metal enclosure, >> and use unshielded cable inside the enclosure. Adding a ferrite bead just >> inside the enclosure can help to filter out any remaining rf. >> >>> On Fri, Jul 20, 2018, 7:35 PM Nate Burke <[email protected]> wrote: >>> I'm curious why Liquidtight works when the foil shield on the Cat5 doesn't. >>> Extra distance from the twists? Heavier gauge steel? Do you need to make >>> sure the liquid tight is grounded, or just the fact that it's around the >>> cat5 is enough? >>> >>>> On 7/20/2018 7:04 PM, Chuck McCown wrote: >>>> Yeah, that too. Some folks could not make it work without the >>>> liquidtight. >>>> >>>> From: Sean Heskett >>>> Sent: Friday, July 20, 2018 5:38 PM >>>> To: AnimalFarm Microwave Users Group >>>> Subject: Re: [AFMUG] Ethernet problems next to FM Antenna >>>> >>>> Put all Ethernet cables inside shielded liquidtight flex conduit. You can >>>> buy it st an electrical supply shop. >>>> >>>> Be sure to run the conduit to a metal box at the top and then breakout to >>>> each ap in smaller shielded conduit. >>>> >>>> -sean >>>> >>>> >>>>> On Fri, Jul 20, 2018 at 10:35 AM Nate Burke <[email protected]> wrote: >>>>> It looks like the old archives aren't back online yet, so I couldn't go >>>>> searching through there for ideas. >>>>> >>>>> I have a site where we have been co-locating with a 800w FM Transmitter >>>>> for years. We've always had Ethernet problems at the site since the FM >>>>> went in. Everything is shielded cat5 (Belden 7919). It is at a grain >>>>> elevator, our equipment is on one corner of the platform, and the FM >>>>> Transmitter is on the other corner. We are horizontally separated by >>>>> about 10 feet. There is no way to get vertical separation. I used to >>>>> run all the cables down to the bottom of the leg, about 100'. In an >>>>> effort to make the Ethernet work better, I installed an Edgepoint fed >>>>> with Fiber at the top, so cable lengths between the radios and the >>>>> Edgepoint are now 5'-10'. With the FM Transmitter turned off, everything >>>>> runs perfectly. When the FM is turned on, most equipment drops to >>>>> 100mb, and some goes down to 10mb. On the most problematic equipment, I >>>>> have installed the 4 pair FM Filters from Sandman >>>>> http://www.sandman.com/rf.html within 12" of both the switch and the >>>>> radio. It made no change. >>>>> >>>>> What FM Elimination tricks have I forgotten to try? I was really >>>>> expecting the short cable lengths to solve the problem. >>>>> >>>>> -- >>>>> 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 > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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