User manual

Psion Teklogix 7535/7530 Hand-Held Computer User Manual 141
Chapter 5: Configuration
Channel Tab
Power Up Channel
When this parameter is enabled (checked), the 7530 begins communicating on the
channel specified in the Channel Number parameter when the unit is powered up.
This setting may prevent the migration of 7530s to the same channel due to uneven
coverage in some sites.
If this parameter is disabled (unchecked), the unit will continue communicating on
the same channel that it was on before it was powered off.
Channel Enable List
• Tap on the Channel Enable List button to display a dialog box listing
available channels.
Figure 5.65 Channel Enable Dialog Box
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 can roam through
all 20 channels.
Channel Switch Speed
This parameter changes the threshold the 7530 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 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