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
>>> ----------------------------------------------------------------
>>>
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