Psion Teklogix Hand-Held Computer 7530 G2 - Manual (Page 164)

Chapter 5: Configuration
Channel Tab
136 Psion Teklogix 7530 G2 Hand-Held Computer User Manual
Channel Enable List
• Tap on the Channel Enable List button to display a dialog box listing
available channels.
This dialog box is completed by default with all channels that have frequencies
configured. A checkmark indicates that a channel is enabled. An unchecked check
box indicates that the channel is disabled. The maximum number of channels
supported by the RA1001 Narrow Band radio is 20.
Enabling a channel allows the channel to be set to an operating channel (Channel
Number) and makes it available for channel searching. For example, if Channel 1 is
the operating channel and all other channels are enabled, the 7530 G2 can roam
through all 20 channels.
Channel Switch Speed
This parameter changes the threshold the 7530 G2 uses to determine when
communication quality with a base station is unacceptable. When this threshold is
exceeded, the unit starts channel searching for a new base station.
Setting this parameter to “Slow” means a higher threshold – the 7530 G2 is more
tolerant of poor communication quality. When the channel quality of the hand-held
radio drops below 46%, the unit monitors the channel quality for 15 timeout periods
before searching for a new channel. If Channel Switch Speed is set to “Fast”, the
current channel is only monitored for up to 2 time-out periods before channel
switching begins.
Important: “Fast” switch speed is most effective where coverage areas are
largely overlapping. If the coverage areas barely overlap, have
dead spots, or if the 7530 G2 frequently operates on the fringe of
coverage, this parameter should be set to “Slow”.