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Mobile Printing Systems
CPCL Programming Manual
Section 14
Configuration/
Control
Commands
pg. 14-189
continued
International Mode
Using the description below, a user can change the channels to what are supported by their regulatory domains. The user
should ensure they set this in accordance with the regulatory domain in their country.
wlan.channel_mask
type: getvar; setvar
This controls which b/g radio channels can be used by the radio for network connections. It is a bit field
where a 0 disables a channel and a 1 enables the channel. Starting from the right, bit 0 is for channel 1,
bit 1 for channel 2, etc. This can be used to limit the channels scanned for networks, which would slightly
improve connection and roaming speed. It also used to control the channels used for your regulatory
domain.
Commonly used channel masks are:
Channel Mask: Region
0x7FF: United Sates, Canada, Latin America (Channels 1-11)
0x1FFF: Europe, Middle East, Africa, other (Channels 1-13)
0x3FFF: Japan (Channels 1-14)
This is not supported by all radios.
getvar result Returns the mask of which channels are enabled.
getvar example
Description Get the current channel mask value
Syntax ! U1 getvar “wlan.channel_mask”
Result “0x7FF”
setvar choices
0x0000 to 0xFFFF (4 hexadecimal digits preceded by “0x”
Default 0x7FF
setvar example
Description Set the channel mask to use only channels 1,6,11
Syntax ! U1 setvar “wlan.channel_mask” “0x421”
Result Only channels 1, 6, and 11 will be used by the radio
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