I got what you threw down the first time.
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Mike Hammett
Intelligent Computing Solutions
Midwest Internet Exchange
The Brothers WISP
----- Original Message -----
From: dmmoff...@gmail.com
To: "AnimalFarm Microwave Users Group" <af@af.afmug.com>
Sent: Wednesday, September 6, 2023 4:46:00 PM
Subject: Re: [AFMUG] EPMP4600
Maybe I need a sarcasm filter.
Nobody should do any of this, these are not serious “solutions”, and there’s no
“EIRP Problem”. The EIRP limit (and other rules) are there to protect incumbent
licensed operators who have invested a small fortune into radio equipment they
are relying on to provide critical communication services as well as to protect
the new unlicensed users from harming each other. Anybody who does any of the
things in those bullet points should be flogged.
….but there’s also nothing new here. People will misconfigure EIRP and install
bigger antennas out of ignorance even if they’re an upright citizen. Hell I’m
getting the impression from Peter Kranz’s original question that he didn’t even
know there was an EIRP limit. So that’s exhibit A. The people who would use
hacked or international radios know exactly what they’re doing and if they
don’t already know how to get them then they’ll learn it from Reddit, or from
shady vendors, or they’ll figure it out by accident when they buy a foreign
model off EBay. Or they’re already doing it.
My point is 6ghz is not going to be safe for licensed PTP anymore. Maybe I’m
being pessimistic about it.
From: AF <af-boun...@af.afmug.com> On Behalf Of TJ Trout
Sent: Wednesday, September 06, 2023 5:29 PM
To: AnimalFarm Microwave Users Group <af@af.afmug.com>
Subject: Re: [AFMUG] EPMP4600
I'm baffled that you would even propose or share that information
On Wed, Sep 6, 2023, 1:56 PM < dmmoff...@gmail.com > wrote:
The industry already has solutions to the EIRP problem.
* Buy international units set to follow the rules in Russia or Hong Kong
and then you can run any channel you want at whatever power you want.
* Alter the firmware on a US unit to enable rules for another country or
maybe put it in an engineering test mode with no limitations.
* “Misconfigure” the antenna gain so you can turn up the Tx power.
* If antenna gain can’t be adjusted in the config, then buy integrated
units with small antennas and then run pigtails off the circuit board to a
bigger antenna
You shouldn’t really do any of this, but all of those “solutions” have been
seen in the wild. For awhile you could factory reset AirMax gear and then on
first login just pick whatever country you wanted. I knew a guy who did that
for all of his PTP links and I got him in trouble with his boss. Or at least
his boss pretended he was in trouble, but for all I know maybe they started
laughing together as soon as I was out of the room.
If I had 6ghz licensed links right now I would be coming up with contingency
plans for if/when they get trashed by some jabroni. Like the private pool is
about to become a public pool and you know all the neighborhood kids are gonna
pee in it. It might be time to look for another pool. Just saying.
-Adam
From: AF < af-boun...@af.afmug.com > On Behalf Of castarritt
Sent: Wednesday, September 06, 2023 3:03 PM
To: AnimalFarm Microwave Users Group < af@af.afmug.com >
Subject: Re: [AFMUG] EPMP4600
36dbm is max for 6ghz, and that is assuming an SM with built in GPS. SMs
without GPS will be limited to 30dbm. I haven't used any Mimosa, but I bet they
will limit it to the same EIRP if you set them up with the correct antenna
gain.
On Wed, Sep 6, 2023 at 1:56 PM Peter Kranz via AF < af@af.afmug.com > wrote:
<blockquote>
I currently have a few experimental 6Ghz licenses, where we have been trialing
the Mimosa A6 equipment. So far the A6 has not been super stable, although the
performance when it is stable was exciting at > 800 Mbps for subs. Also has
problems with timing for customers past 5 miles or so.
Anyway, I’m thinking of switching gears to Cambium’s 4600 platform to have
something more stable. Am I correct in that Cambium is limiting the EIRP of the
SMs to 36db? So the 25db subscriber dish transmits into the dish at +11?
This sounds like the solution is limited to about 4-5 miles as a result.. Am I
missing something here?
Peter Kranz
www.UnwiredLtd.com
Desk: 510-868-1614 x100
Mobile: 510-207-0000
pkr...@unwiredltd.com
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