WISPA actually proposed the database during the discussions a few years ago
with the FCC where we nearly lost access to all of the lower portion of 5.7 due
to the OOB emissions into the 5.4 space. The FCC rejected the proposal due to
complexity (and it was complex - a design for a mouse that ended up as an
elephant). The accepted proposal was one that Ubiquiti came up with that was a
lot simpler (a change to the mask that the FCC found acceptable).
Mark
> On Aug 23, 2019, at 1:18 PM, ch...@wbmfg.com wrote:
>
> The system exists for TVWS. Could easily be adapted for this.
>
> From: Sterling Jacobson <>
> Sent: Friday, August 23, 2019 11:11 AM
> To: AnimalFarm Microwave Users Group <>
> Subject: Re: [AFMUG] FCC Proposes Fines Against WISPs and Issues Warning to
> Industry
>
> They really should open up a database system where you, or the radio itself,
> registers to GPS location it’s operating at and enables/disables the use DFS
> frequencies entirely.
>
> But that would mean someone in the government would have to do some work, or
> contract it out for one gagillion dollars…
>
> Also, like said before, the best practice is to never use the radar frequency
> in use near you.
>
> The FCC doesn’t have enough man power to police unless it’s actually
> affecting the radar system.
>
> And therein lies the caveat. As I found out years ago, you can be clean or
> operating DFS appropriate channels even outside the radar advisory distance,
> and still get caught up in a witch hunt if SOME OTHER PROVIDER is causing the
> problem.
>
> When I had that go around, the FCC caught and fined a swath of WISPs because,
> IMO, they couldn’t actually narrow down the abuser and just fined everyone
> that was at all in any sort of violation of anything, in a 30 mile radius.
>
>
> From: AF <af-boun...@af.afmug.com> On Behalf Of Bill Prince
> Sent: Friday, August 23, 2019 9:13 AM
> To: af@af.afmug.com
> Subject: Re: [AFMUG] FCC Proposes Fines Against WISPs and Issues Warning to
> Industry
>
> +1
> The nearest 5GHz TDWR station to us is over 400 miles away and on the
> opposite side of the Sierra Nevada, yet we routinely get DFS hits.
>
> bp
> <part15sbs{at}gmail{dot}com>
>
> On 8/23/2019 7:57 AM, Eric Muehleisen wrote:
>> I too am skeptical. The majority of our DFS detection's happen between 7am
>> and 10am and only on northern facing AP's. The closest TDWR to us is 90
>> miles to our south. I'm convinced our DFS events are false positives due to
>> Cambiums extreme sensitivity that showed up after firmware 15.0.3. Before
>> that, almost never a DFS detection. Now it happens on the regular,
>> regardless of frequency.
>>
>> http://www.wispa.org/Resources/Industry-Resources/TDWR-Resources/TDWR-Locations-and-Frequencies
>>
>> <http://www.wispa.org/Resources/Industry-Resources/TDWR-Resources/TDWR-Locations-and-Frequencies>
>>
>>
>> On Fri, Aug 23, 2019 at 9:39 AM Ken Hohhof <af...@kwisp.com <>> wrote:
>>> I personally am skeptical that DFS actually works worth a damn, I think the
>>> operable advice is DON'T USE THE SAME FREQUENCY AS YOUR LOCAL TDWR!!!!!!!
>>> Even with DFS enabled. It's not had to look up the frequencies they use,
>>> stay away.
>>>
>>>
>>> -----Original Message-----
>>> From: AF <af-boun...@af.afmug.com <>> On Behalf Of dave via AF
>>> Sent: Friday, August 23, 2019 8:51 AM
>>> To: af@af.afmug.com <>
>>> Cc: dave <dmilho...@wletc.com <>>
>>> Subject: Re: [AFMUG] FCC Proposes Fines Against WISPs and Issues Warning to
>>> Industry
>>>
>>> What is the vert/horiz degree on those antennas or is it just one big
>>> rotating parabolic dish ?
>>> I imagine they would have hundreds of slim sectors of about 1deg each inside
>>> a giant ball or dome.
>>>
>>>
>>> On 8/23/19 8:39 AM, Chuck McCown wrote:
>>> > Sadly we have seen this several times before. Weather radar is extremely
>>> sensitive. They use 60 dB antennas and scan in all directions. If you are
>>> within 100 miles of them and using their 5.4 channels it is almost ceartain
>>> you will be caught.
>>> >
>>> > Sent from my iPhone
>>> >
>>> >> On Aug 23, 2019, at 6:49 AM, dave via AF <af@af.afmug.com <>> wrote:
>>> >>
>>> >> It means dont be THAT guy :)
>>> >>
>>> >>
>>> >>> On 8/22/19 3:44 PM, Seth Mattinen wrote:
>>> >>> https://www.fcc.gov/document/fcc-proposes-fines-against-wisps-and-is
>>> >>> <https://www.fcc.gov/document/fcc-proposes-fines-against-wisps-and-is>
>>> >>> sues-warning-industry-0
>>> >>>
>>> >>
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>>
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