I saw an article online that said twice a year when the sun lines up right behind the satellite your satellite dish is pointed at, it can not only knock out the RF link, but if the dish is painted a reflective color, it can melt the plastic case of the LNB. I guess that’s why sat dishes are dark grey? (or in some cases black) I assume a radome would prevent that by letting RF through but not sunlight?
From: AF <af-boun...@af.afmug.com> On Behalf Of ch...@wbmfg.com Sent: Thursday, August 15, 2019 3:13 PM To: af@af.afmug.com Subject: Re: [AFMUG] Solar load Be interesting to do a bake off between this and the plain “satellite white” I use. I have always found it interesting that highly reflective things like polished aluminum, chrome and silver paint seem to be really bad at reflecting heat/sun. But we have all grabbed a chrome wrench that has been left in the hot summer sun and realized hot much it absorbs. I am guessing what we see as reflective, Infra Red sees as flat black. From: Bill Prince Sent: Thursday, August 15, 2019 1:46 PM To: af@af.afmug.com <mailto:af@af.afmug.com> Subject: Re: [AFMUG] Solar load Which reminds me of this material that a friend clued me in on. You can get this at Home Depot (for example). It is pricey; around $250 per 5 gallon bucket, AND it needs a top coat of another material at near the same price. However, for an advertised reduction in temperature of over 60 degrees F, it may be worth a look. https://superiorcoatingsolutions.com/super-therm/ bp <part15sbs{at}gmail{dot}com> On 8/15/2019 12:35 PM, Lewis Bergman wrote: I remember Chuck doing a study on this same subject so I thought there might be some interest. Cabinet heat load <https://www.ddbunlimited.org/wp-content/uploads/2019/08/Solar-Load-on-DDB-Enclosures.pdf> -- Lewis Bergman 325-439-0533 Cell _____ -- AF mailing list AF@af.afmug.com <mailto:AF@af.afmug.com> http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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