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Psion Teklogix 8525 G2/8530 G2 Vehicle-Mount Computer User Manual 117
Chapter 5: Configuration
Narrow Band Radio Setup
Data Squelch
Data Squelch controls the radio receiver, cutting it off when the signal is too weak
for reception of anything but noise. Receive Signal Strength Indicator values below
the Data Squelch threshold prevent further processing of the receive signal while
higher values allow further processing. The allowable range is 0 to 100 with a
default value of 0.
In noisy environments, this value can be increased to reject noise. In environments
with less noise, this value can be decreased to allow the received signal and increase
range. This parameter is stored in the radio’s non-volatile memory.
Test Squelch
• Tap on the Test Squelch button to prompt the radio to use the Data Squelch
value without committing it to the radio’s non-volatile memory – in other
words, to ‘test’ the value assigned to the Data Squelch parameter.
To commit the new Data Squelch value to the radio’s non-volatile memory:
• Tap on the OK button – the dialog box is closed and the new value
is saved.
To discard the new value, and keep the old Data Squelch value:
•Tap on the X button at the top of the dialog box. The old value is sent to the
protocol driver.
Frequency Table
• Tap on the Frequency button to display the Frequency Table dialog box.
• Tap on the Copy “Receive” to “Transmit” button to copy the contents of
the Receive fields into the corresponding Transmit fields.