Setup procedures (part 1)
9390 Reference manual 5-5
The higher the Golay value calculated for a received ALE
word, the greater the error.
If a received ALE word contains more errors than the Golay
Threshold, the ALE controller rejects the word. The lower
you set the Golay Threshold, the tougher the test for rejecting
transmission errors.
Error Threshold (ALE option 7)
This ALE option sets the maximum number of sequentially
received bad ALE words which are allowed before the ALE
controller decides that the quality of the current channel is too
poor to establish an ALE link. A bad word is a word that has
exceeded either the BER or Golay Threshold.
You can set a value in the range 0–4.
If the test fails during the process of establishing the ALE
link, the call aborts and the transceiver returns to Scan mode.
ALE Silent Mode (ALE option 11)
This ALE option switches ALE Silent mode on or off.
When ALE Silent mode is switched off, the station runs as a
normal ALE station.
When ALE Silent mode is switched on, the station no longer:
• recognises any incoming ALE calls
• sends or receives sounding signals even if Sounding
On/Off (ALE option 0) is switched on.
You can still send ALE calls in ALE Silent mode.
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