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You definitely won't have them now, Steve. Good job! Gilbert > On Apr 30, 2021, at 5:44 PM, Stephen Adams via ldm-users > <ldm-users@xxxxxxxxxxxxxxxx> wrote: > > > Thanks everyone for your thoughts. > Although we haven't had any interference problems yet... better safe than > sorry. We just had a filter installed. Easy peasy! > > Steve > > >> On Wed, Apr 28, 2021 at 12:29 PM Raymond Weber <admin@xxxxxxxx> wrote: >> I have 5g sites on these adjacent frequencies all around me. I have had no >> issues with a 12 ft dish. >> >> a good LNB, norcomm etc, seems to be the key. >> >> Ray >> From: ldm-users <ldm-users-bounces@xxxxxxxxxxxxxxxx> on behalf of Gilbert >> Sebenste <gilbert@xxxxxxxxxxxxxxxx> >> Sent: Wednesday, April 28, 2021 1:26 PM >> To: Stephen Adams <sadams@xxxxxxxx> >> Cc: ldm-users@xxxxxxxxxxxxxxxx <ldm-users@xxxxxxxxxxxxxxxx> >> Subject: Re: [ldm-users] filters on NOAAPort dishes? >> >> >> >> >> >> CAUTION: This email originated from outside of the organization. Do not >> click links or open attachments unless you recognize the sender and know the >> content is safe. >> >> >> Hi Steve, >> >> Short answer: absolutely. >> >> More thorough answer: Absolutely. With our dish at AllisonHouse, we have >> been dealing with this issue for the better part of a year. We did a >> complete refurbishment on it last year. We bought the highest quality coax, >> an LNB with a notch filter to only let our part of the spectrum through, and >> everything else is heavily shielded. >> >> Our dish is in the middle of what I call "TI Hell": several cellular towers, >> each with different carriers already broadcasting 5G, are nearby. On top of >> that, just down the road, are multiple commercial and PBS television >> stations, some of which transmit at 1 million watts Effective Radiated Power >> (1 MW ERP). We also have 100 kilowatt (kw) FM and 50 kw AM radio towers >> nearby, as well as an active railroad line close by, producing vibrations, >> which I also had to deal with. Our engineer showed me the readout at the >> dish from his spectrum analyzer: it was dang ugly. Throw in COVID-19, and I >> had serious challenges to overcome getting this done. I'm happy to say that >> by dealing with all of those problems all at once, I can sleep at night. The >> only times our dish has issues is if the uplink dies, or there's heavy snow, >> or a thunderstorm. Standard fare for satellite reception. >> >> With that, we can still lose 10,000 to 20,000 packets a day on days when our >> data center generator is tested. But overall, our packet losses are low, and >> I'm generally happy with the reception. >> >> SSEC is another success story. No offense to them, but for quite a long >> time, their NOAAport reception was bad. They also did a dish refurbishment, >> and bought the best LNB money could buy, which is heavily filtered. When all >> was said and done, they now generally lose *zero* packets per day. They got >> a 15 dB signal increase(!), and they do have 5G towers close to them. They >> are another model for how to do it right in a challenging RF environment. >> >> Gilbert >> >> >> >>> On Apr 28, 2021, at 11:05 AM, Stephen Adams via ldm-users >>> <ldm-users@xxxxxxxxxxxxxxxx> wrote: >>> >>> >>> Good morning all, >>> >>> This pertains to everyone who has a satellite NOAAPort feed. >>> >>> Given the impending C-band repack to support 5G, are you planning to >>> install a filter on your dish? Although the NOAAPort frequency is outside >>> of the 5G range, it is my understanding that the filter is required due to >>> increased crowding in the upper C-band, leading to potential interference >>> issues. Is that your understanding as well? >>> >>> Steve >>> >>> ---------------------------------------------------------------- >>> Stephen D. Adams >>> Vice President - Research and Development >>> AWIS Weather Services, Inc. >>> 1735 East University Drive, Suite 101 >>> Auburn, AL 36830-5204 >>> >>> Website: http://www.awis.com >>> Facebook: https://www.facebook.com/AWISWeatherServices >>> email: sadams@xxxxxxxx >>> Phone: (334) 826-2149 ext 1003 >>> Toll-free: (888) 798-9955 ext 1003 >>> Toll-free Fax: (888) 374-8027 >>> ---------------------------------------------------------------- >>> >>> _______________________________________________ >>> NOTE: All exchanges posted to Unidata maintained email lists are >>> recorded in the Unidata inquiry tracking system and made publicly >>> available through the web. Users who post to any of the lists we >>> maintain are reminded to remove any personal information that they >>> do not want to be made public. >>> >>> >>> ldm-users mailing list >>> ldm-users@xxxxxxxxxxxxxxxx >>> For list information or to unsubscribe, visit: >>> https://www.unidata.ucar.edu/mailing_lists/ > _______________________________________________ > NOTE: All exchanges posted to Unidata maintained email lists are > recorded in the Unidata inquiry tracking system and made publicly > available through the web. Users who post to any of the lists we > maintain are reminded to remove any personal information that they > do not want to be made public. > > > ldm-users mailing list > ldm-users@xxxxxxxxxxxxxxxx > For list information or to unsubscribe, visit: > https://www.unidata.ucar.edu/mailing_lists/
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