CipherLab 9700 Reference Manual page 125

9700 Mobile Computer (WEH)
MANAGE GLOBAL SETTINGS
Global settings include radio and security settings that apply to all profiles in SCU.
To open the Global settings page:
1) Open SCU's Configuration tab page as described in
2) Tap Manage Profiles to open the Profile settings page.
3) Tap the Globals tab to open the Global settings page.
Property
Roam Trigger
Roam Delta
Roam Period
BG Channel Set
114
Value
When the moving average RSSI from the current AP is weaker than Roam
Trigger, radio does a roam scan where it probes for an AP with a signal that
is at least Roam Delta dBm stronger.

Value (dBm): -50, -55, -60, -65, -70, -75, -80, -85, -90, Custom
 Default: -70 dBm
When Roam Trigger is met, a second AP's signal strength (RSSI) must be
Roam Delta dBm stronger than the moving average RSSI for the current AP
before radio will attempt to roam to the second AP.
 Value (dBm): 5, 10, 15, 20, 25, 30, 35
 Default: 10 dBm
After association or roam scan (with no roam), radio will collect RSSI scan
data from Roam Period seconds before considering roaming.
 Value (sec): 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, Custom
 Default: 10 (seconds)
Defines the 2.4 GHz channels to be scanned when the radio is contemplating
a roam and needs to determine what APs are available.
Item
Full
1, 6, 11
Create Wi-Fi
Description
All channels
The most commonly used 2.4 GHz channels
Reference Manual
Profile.