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Mobile Printing Systems
CPCL Programming Manual
Section 14
Configuration/
Control
Commands
pg. 14-6
continued
bluetooth.afh_map
type: getvar. setvar
Sets or retrieves default AFH channel map (Bluetooth 1.2 radios only); 20 bytes.
The AFH map must be 20 characters long; for Zebra printers. All characters used are HEX characters. 20
HEX characters used for AFH channel map form 80 bits binary channel map that represents 79 channels
used by Bluetooth (the first bit is masked out automatically by the Bluetooth library). Each bit defines a 1
MHz Bluetooth channel state that will be used to generate the AFH channel map where 1 marks a channel
as “good” and 0 marks a channel as “bad” (not to be used by Bluetooth radio).The rightmost bit defines
channel 0 and the leftmost bit defines channel 79. This map is passed to the Bluetooth radio installed in
Zebra printer when AFH mode is ON.
NOTE: Default AFH Channel Map value is set to enable all 79 Bluetooth channels.
getvar result 20 bytes string of HEX characters
Example
Description Retrieves default AFH channel map
Syntax ! U1 getvar “bluetooth.afh_map”
Result “7FFFF0000007FFFFFFFF”
setvar choices
20 bytes string of HEX characters
Default “7FFFFFFFFFFFFFFFFFFF”
Example
Description Sets AFH channel map to use upper half of BT spectrum
Syntax ! U1 setvar “bluetooth.afh_map” “0000000000FFFFFFFFFF”
Result N/A
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