Don’t want to speak for Eric, but I think he means that so far, he is still 
operating under Part 90 rules, so the EIRP is limited.

Once he swaps over to operating under Part 96 (CBRS), he’ll be able to enjoy 
the higher EIRP limits that these rules allow.

Yes, the 3 GHz 450m is capable of operation under either rule part (the old 
3.65 Part 90, or the Part 96 CBRS).

Matt

From: AF <af-boun...@af.afmug.com> On Behalf Of Josh Luthman
Sent: Friday, June 26, 2020 9:55 AM
To: AnimalFarm Microwave Users Group <af@af.afmug.com>
Subject: [ External ] Re: [AFMUG] Syncinjector cambium sync with 3ghz 450m

450m is most certainly on CBRS.

Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373


On Fri, Jun 26, 2020 at 10:04 AM Eric Muehleisen 
<ericm...@gmail.com<mailto:ericm...@gmail.com>> wrote:
hmm. These AP's are not on CBRS yet. So TX power is limited. I wonder if we'll 
start to see issues once the AP's are cranked up.

On Fri, Jun 26, 2020 at 8:39 AM Adam Moffett 
<dmmoff...@gmail.com<mailto:dmmoff...@gmail.com>> wrote:

It's because of the 100W+ draw.

Look at the voltage drop on 18ga over hundreds of feet with the wattage drawn 
by the 450m.

On a shortish cable you're probably ok with the 2x 18gauge.  Look at a 300' or 
400' cable and compare what 2x 18 gauge does vs 4x 16 gauge.   At some point 
you're only delivering 30ish volts.


On 6/26/2020 9:30 AM, Eric Muehleisen wrote:
Is there a particular reason why 4 conductors is necessary? We've been only 
using 2. Pin 1 is positive, Pin 3 is negative. Been working great for months. 
We use outdoor rated 18 gauge power wire that we use on our ONT's.

On Thu, Jun 25, 2020 at 3:35 PM Josh Baird 
<joshba...@gmail.com<mailto:joshba...@gmail.com>> wrote:
Yes - and some non-standard connector.

On Thu, Jun 25, 2020 at 4:30 PM Josh Luthman 
<j...@imaginenetworksllc.com<mailto:j...@imaginenetworksllc.com>> wrote:
Wait the 450m 3 GHz needs four conductors?!

Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373


On Thu, Jun 25, 2020 at 3:15 PM Matt Hopkins 
<mhopk...@onlinenw.com<mailto:mhopk...@onlinenw.com>> wrote:
On the 5GHz 450M you can use one cable for power, sync, and data if you so 
choose.
On the 3GHz 450M you have to use at least 2 cables. One will probably be cat5 
for sync and data. Power must have it's own 4 conductor cable. In the 
RackInjector, you would be providing power over the sync port as well as the 
power cable but the 450M will ignore the power input from the Cat5. The pic 
below shows the end result. This is live from one of our towers. Note the 
current on all the ports is minimal.

[cid:image002.png@01D64BA2.DC5743E0]



On Thu, Jun 25, 2020 at 10:38 AM Steve Jones 
<thatoneguyst...@gmail.com<mailto:thatoneguyst...@gmail.com>> wrote:
wont sending POE power to the radio damage the port?, syncinjectors are passive 
poe

On Thu, Jun 25, 2020 at 12:21 PM Eric Muehleisen 
<ericm...@gmail.com<mailto:ericm...@gmail.com>> wrote:
The RackInjector board naming scheme is confusing. He really needs a table 
matrix that breaks down what boards support what equipment and what jumpers and 
power requirements to use. I think this is why he was asking for help on his 
documentation.

Power Injection for Cambium Sync = 450M & 450i.
Power Injection + Canopy Sync = ePMP, 450 & 320

To power a 3ghz 450M you'll need a PDU card and a Power Injection for Cambium 
Sync to provide sync pulse. No PoE on the 3.65ghz 450M. You leave power enabled 
on the card/ports or sync will not work.



On Thu, Jun 25, 2020 at 11:46 AM Steve Jones 
<thatoneguyst...@gmail.com<mailto:thatoneguyst...@gmail.com>> wrote:
Im confused as shit, and the cambium documentation is not clear. The 
syncinjector cambium sync says 450m, but is the only 450m 5ghz? the 3ghz as 
bestI can tell is a DC only product (even says something about sync over power)

so will the syncinjector still provide sync at the ethernet port, i just turn 
off the power output on the syncinjector? or am i misunderstanding this and the 
450m 3ghz will take power via the ethernet port?

forrest?


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