Ideally you'd run this on all same-band co-located sectors at the same
time. But yeah, my thought was close to yours. We have some towers only
a mile or two apart and the SMs will definitely pick them up. This is
one reason why I mentioned AP mode background SA. Schedule an Rx slot
for background SA and give me a 1 or 5 minute average of my current
channel. This is pretty much what happens with LBT now anyway.
On 12/3/2014 5:25 PM, Peter Kranz via Af wrote:
Hi Jonathan,
The way Sector SA is being implemented won’t give the best possible
results in practice. Since it is not paying attention to the sync
pulses, but just coordinating running an AP spectrum scan with the SMs
you are still going to see a bunch of bogus energy from co-located
access points. In order to do this in a way where you can really see
what the spectrum looks like, the AP should only perform SA during its
appointed receive windows and not during the TX windows of other
co-located equipment.
Another side effect for those of us running fancy beam forming antenna
arrays is we can never use ‘Sector SA’ at all, since it is listening
during the TX windows of other access points connected to the beam
former and getting high RF levels shoved into its RX side.
*Peter Kranz
*Founder/CEO - Unwired Ltd
www.UnwiredLtd.com <http://www.unwiredltd.com/>
Desk: 510-868-1614 x100
Mobile: 510-207-0000
pkr...@unwiredltd.com <mailto:pkr...@unwiredltd.com>
*From:*Af [mailto:af-boun...@afmug.com] *On Behalf Of *Jonathan
Mandziara via Af
*Sent:* Wednesday, December 03, 2014 8:44 AM
*To:* af@afmug.com
*Subject:* [AFMUG] 13.3 Open Beta
AF Community,
Please visit the Cambium Networks webpage to down load the Open Beta
version of 13.3 for PMP450 and PTP450 radios.
https://support.cambiumnetworks.com/files/pmp450/beta
https://support.cambiumnetworks.com/files/ptp450/beta
* PMP320 Co-location (5ms Frame support) (This will work on all
bands, but intended for 3.5 and 3.65 at this time.)
* 7MHz Channel Bandwidth for 3.5 and 3.65 radios
* Removal of the PTP450 Map for faster link speeds
* SNMPv3
* HTTPS
* Ability to turn off Telnet, FTP and TFTP
* Read-Only Accounts for Admin, Install, and Tech
* Sector SA
* Export of Sessions Status Page
* Config File export/Import for AP/BHM and SM/BHS
*NOTE:* PMP320 co-location works best when both the PMP450 and PMP320
are on CMM synch sources. Cambium is writing a paper on how to adjust
the radios to best deal with other synch sources, although the radios
will still work together without adjustment with some impact to
throughput.
We look forward to you feedback on this release either in this forum
or at:
http://community.cambiumnetworks.com/t5/PMP-Beta/bd-p/forums_pmp_beta
Best,
C*a*mbium Jonathan
