Sooooo... here's a situation I bet no one thought about...
I have an AP at 0 degrees north, and my CPE is directly south at 180. I
file as such.
The AP goes offline but the CPEs now see a sector directly behind them
and connect to that.
Is the reported to the SAS azimuth now 0 degrees (dish is pointing
north) or 180 degrees (CPE is attached to a sector behind it off the
backside)?
On 8/13/20 12:23 PM, Ken Hohhof wrote:
Well, the SAS doesn’t care. But to get authorized to transmit and to
send heartbeats, the SM needs to communicate SM-AP-cnMaestro. And it
needs to use that trick where a CBSD is allowed to transmit very briefly
before authorization, and then the AP takes the SM under its wing and
gets the grant information from cnMaestro.
Similar mechanism if you set alternate color codes, so SMs can move
automatically to an alternate sector.
*From:* AF <[email protected]> *On Behalf Of *Josh Luthman
*Sent:* Thursday, August 13, 2020 10:31 AM
*To:* AnimalFarm Microwave Users Group <[email protected]>
*Subject:* Re: [AFMUG] replacing a CBRS AP
That would make sense. The AP/SM thing is just a Cambium/CNmaestro
thing. CBRS doesn't care who the parent is, it needs to know the
bearing/elevation/position.
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
On Thu, Aug 13, 2020 at 10:46 AM Kurt Fankhauser
<[email protected] <mailto:[email protected]>> wrote:
so all you do is put up a 2nd AP and once its online change the
Color Code to the same code the old SM's are and the sms move over
to the new AP and the CBRS data transfers over automatically in Maestro?
On Wed, Aug 12, 2020 at 6:14 PM Ken Hohhof <[email protected]
<mailto:[email protected]>> wrote:
Matt thanks, we did that today and all the SMs just moved
automagically to the replacement AP.
We imported a sector consisting of just the empty AP, and pre
approved onboarding in cnMaestro. It was Authorized and Waiting
for Device. Once the new AP was plugged in, it synced and
enabled CBRS and the SMs moved over without any manual
intervention. Pretty cool.
*From:* AF <[email protected]
<mailto:[email protected]>> *On Behalf Of *Matt Mays
*Sent:* Monday, August 10, 2020 11:19 AM
*To:* [email protected] <mailto:[email protected]>
*Subject:* Re: [AFMUG] replacing a CBRS AP
In my experience, you just CPI file a new empty AP and sync it
once you have it in place.
The SMs should move to the new AP in the SAS admin tool once
they register and the grants get re-used.
Then once the old AP is empty in cnMaestro SAS Admin tool you
deregister the old AP and delete it from the system.
No reason to refile all of the subs just to swap out the AP.
Thanks,
Matt Mays
Amplex Internet
On 8/10/2020 11:18 AM, dave wrote:
Ken,
since the addition of the export button in the management
tool it makes it easy todo.
The key is ensuring you have a current sheet with all of
your sector info and subs info up to date.
update the sheet with new AP and your ready to go.
Of course to answer your question to make a smoother
transition is to place the new ap into part 90
so you obtain all of your subs then update your management tool.
I am sure someone here may correct me if im wrong.
Thanks
Dave
On 8/10/20 8:46 AM, Ken Hohhof wrote:
Has anyone figured out the best procedure for replacing
a Cambium CBRS AP?
I’m guessing there is something more elegant and less
disruptive than deleting the whole sector while the tech
is swapping out the AP and then re importing into
cnMaestro from a spreadsheet and hoping everything goes
smoothly and customers are only down for a few minutes.
I’m talking about replacing an AP that is in service but
with issues. Over the years we’ve run into RF issues
with the original connectorized 450 APs. I’ve never
established whether it’s the AP or the sector antenna,
but replacing it solves the modulation and V/H ratio issues.
The same procedure would also apply if you are upgrading
to a 450i or 450m AP.
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