Tag Archives: radio

Cambium 450 Bandwidth PLL lock lost

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Had a radio briefly showing an error in red on the web page saying “Bandwidth PLL lock lost” The radio seems to operate so not sure if it is an actual issue or maybe an ongoing bug.

Cambium Bandwidth PLL lock lost

These entries are from the cambium 16.1.1 Release Notes
https://community.cambiumnetworks.com/t/450-platform-series-release-16-1-1-is-now-available/65335

  • A very few 450i/450b SMs having “Bandwidth PLL lock lost” and being unable to register to AP on 20 and 30 MHz after upgrade to 16.1.
  • Occasional false positive of 450 radios was showing “Bandwidth PLL lock Lost” but operating normally.

https://community.cambiumnetworks.com/t/pmp450-sm-v16-1-error-bandwidth-pll-lock-lost/63243

Change Static IP on AirFiber over SSH

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Log into device

SSH into AirFiber

ssh ubnt@192.168.1.20

Modify config file

Open up the “/tmp/system.cfg” configuration file

vi /tmp/system.cfg

Find the line that has the ip address and modify the address.
Note that you’ll need to hit i to enter text if you are using vi

...
netconf.3.hwaddr.status=disabled
netconf.3.ip=192.168.1.10   <-- Change IP here
netconf.3.mtu=1500 
...

Save file by hitting the esc key then type :x and then hit Enter

Save changes and reboot

Now run the following command to write the changes to the device. Once it comes back up it should have the new IP address from the config file.

cfgmtd -f /tmp/system.cfg -w && reboot

Radio Connectors

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List of Common Cable connectors and what they are typically used for.

  • sma (small radio connect, Kenwood antennas)
  • rp-sma (WiFi sma connector, WiFi router antennas, Ubiquiti antennas etc.)
  • RG59 (Older TV systems)
  • RG6 (TV, Dish and Direct TV Satellite)
  • BNC (Security Cameras)
  • N Type (Used on larger WeBoost systems)
  • PL-259-G / SO-239 (VHF/UHF Mobile radio connectors)

PL-259-G

Plugs into a SO-239 connector.  Typically is used in radio communications, like Kenwood Mobile radios.

Remove AirControl provisioning from Ubiquiti radio via SSH

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Short version

List AirControl server(s)

mca-provision-list

Remove from AirControl Server

mca-provision-rm http://server-address

 

Expanded Steps

First you’ll need to SSH into your radio

Example:

ssh ubnt@192.168.1.20

Next run “mca-provision-list” to list the connection(s) the radio has, or is trying to connect to.  If you have had the radio connected to multiple AirControl servers it will show more than one entry.

Example:

XM.v6.1.3# mca-provision-list
unknown @ http://192.168.0.1:9081/AC2/report -
XM.v6.1.3#

To remove, run “mca-provision-rm” with the AirControl address.  You can simple use the “http://server-ip”, shouldn’t have to worry about the port number/AC2/report.

Example:

XM.v6.1.3# mca-provision-rm http://192.168.0.1
Found 1 entries matching 'http://192.168.0.1':
Removing: unknown @ http://192.168.0.1:9081/AC2/report ...
Found Backup1 on[1] ...
Found Active on[2] ...
Storing Active[1] ... [%100]
Active->Backup[2] ... [%100]
done.
XM.v6.1.3#

 

Ubiquiti AirMax SSH Commands

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ssh ubnt@192.168.1.20

AP:

list how many devices are connected.

wstalist |grep \"mac\" |wc -l
or
wstalist |grep -c \"mac\"

List connected devices

wstalist

List ip’s of connected devices

wstalist |grep \"lastip\" | awk '{print $3}' | sed s/\"/\ /g | sed s/,//g

List connected devices with the device name and ip address of device

wstalist |grep -A1 \"name\" | sed s/\"/\ /g | sed s/,//g | grep -v "\--"

List connected devices along with device name, and signal.

wstalist |grep -A6 \"name\" | grep -E -v 'rx|tx|associd|aprepeater' | sed s/\"/\ /g | sed s/,//g | grep -v "\--"

 

Station:

Signal:

mca-status | grep signal

Signal, essid, frequency, noise, and ccq:

mca-status | grep -A4 essid

List basic info like device name, mac address, firmware version, platform, etc.

mca-status | head -n 1

Show Firmware Version:

mca-status | head -n 1 | awk -F, '{print $3}'