SETTINGS
SETTINGS > CALLING > ALE
244 E
NVOY™ TRANSCEIVER REFERENCE MANUAL
ALE BER
The ALE BER entry increases or decreases the value of the BER threshold used in
BER testing.
ALE control information is sent and received in blocks of data called ALE words.
Each word is sent three times to reduce the effects of fading, interference and noise.
When the words are decoded, the transceiver records the number of errors that
occurred in the transmission.
The number of errors indicates the quality of the channel used. A BER of 0 indicates
perfect reception. A BER of 48 indicates that all bits of the ALE word were bad.
The ALE BER entry enables you to specify the number of errors that will be tolerated
in this test, which indicates the quality of the channels on which you are prepared to
accept calls.
Range: 0 to 48
Default value: 12
CAUTION: It is recommended that this entry is not altered from the default value.
Related links:
ALE Golay on page 246
ALE Call Scan
The ALE Call Scan entry sets whether or not your transceiver scans channels for
incoming calls between a call attempt on each channel.
If you want the transceiver to:
• make outgoing calls without any scanning cycles between call attempts, select
Disabled
• only scan the channels in the HF network through which the outgoing call is
being made, select Outgoing HF network
• scan all the channels in the HF networks that are set to be scanned, select
Scanned HF networks
Default value: Disabled
When this entry is set to Disabled, the normal ALE calling sequence is used, that is,
the transceiver attempts a call on the first channel in accordance with its settings for
LBT and number of retries, then tries the next channel, and so on until the call is
successful. The transceiver may miss incoming calls during this outgoing call activity.
When this entry is set to Outgoing HF networks or Scanned HF networks the
transceiver performs a scan cycle, then checks if the channel for the call attempt is
unoccupied, and if so, attempts the call. If the call is not successful, the transceiver
performs another scan cycle, then either retries the same channel (depending on the
value set in the ALE Retries entry), or moves to the next channel.
To Next Page
Loading...
Need help?
General
