Motorola PMP 100 Release Notes And User Manual Supplement page 10

Release 10.5 Release Notes and User Guide Supplement
Changing channel size on deployed SMs can be done on the SM GUI but is usually better done
using CNUT, as CNUT changes all the SMs in a sector at once.
Changing channel size on an installing SM should be done on the SM GUI.
The AP and the SM must have the same channel size to connect.
Important: In an operating sector, use CNUT to change the channel size of the SMs first, then
the AP. If you change the AP's channel size first, SMs won't register to it since the AP and SMs
are operating at different channel sizes. You will have to change the AP back before proceeding.
Important for US and Canadian Operators:
Don't change 5.4-GHz APs to 5-MHz channel size. CNUT will change a PMP 430 AP to 5-MHz
channel size regardless of the Region Code, but a US or Canada 5.4-GHz PMP 430 AP will boot
with transmit disabled, consistent with its certification, and you will have to change the AP back to
10 MHz or 20 MHz channel size using CNUT before proceeding.
Don't set 5.4-GHz SMs to 5-MHz channel size. PMP 430 SMs with a Region Code of US or
Canada do not provide the option for a 5-MHz channel. However, if the Region Code isn't set or
is set to another region, you can set the SM to 5-MHz channel size, but it won't connect to a US
or Canada AP, and you will need to change it to the same channel size as the AP to connect.
See the CNUT 3.20.13 release notes for specific procedures for setting PMP 430 channel size.
FCC Draft, November 2010 Page 10