Setup procedures—Part 1
HF SSB transceiver reference manual 5-17
Call preamble length
Setup code 242
This procedure is used to set the length of the preamble
transmitted at the start of a selective call.
The preamble is part of the coded message structure that is
transmitted when you send a selective call. The preamble
allows the receiving station sufficient time to scan to the
selected channel and recognise the incoming call.
You can set the preamble for:
•
Selcall
(for all types of selective call except ALE calls)
•
ALE
(for all types of selective call including ALE calls).
If you do not have an ALE controller, you should use the
Selcall
preamble. If your station has an ALE controller and
you want to be able to send ALE calls, you should use the
ALE
preamble.
ALE calls need a longer preamble than other types of
selective call. The
Selcall
preamble lasts six seconds. The
ALE
preamble lasts 12 seconds. Setting the
ALE
preamble
does not stop you from sending other types of selective call
but increases the initial call response time.
To change the preamble length:
Action Notes
1.
Repeatedly press
Mode
until you see the
display for Setup mode.
The display shows:
EXIT
SETUP MENU
1–Scan
2–Call
ENTER
3–Config
4–More
1/2
Setup procedures—Part 1
HF SSB transceiver reference manual 5-17
Call preamble length
Setup code 242
This procedure is used to set the length of the preamble
transmitted at the start of a selective call.
The preamble is part of the coded message structure that is
transmitted when you send a selective call. The preamble
allows the receiving station sufficient time to scan to the
selected channel and recognise the incoming call.
You can set the preamble for:
•
Selcall
(for all types of selective call except ALE calls)
•
ALE
(for all types of selective call including ALE calls).
If you do not have an ALE controller, you should use the
Selcall
preamble. If your station has an ALE controller and
you want to be able to send ALE calls, you should use the
ALE
preamble.
ALE calls need a longer preamble than other types of
selective call. The
Selcall
preamble lasts six seconds. The
ALE
preamble lasts 12 seconds. Setting the
ALE
preamble
does not stop you from sending other types of selective call
but increases the initial call response time.
To change the preamble length:
Action Notes
1.
Repeatedly press
Mode
until you see the
display for Setup mode.
The display shows:
EXIT
SETUP MENU
1–Scan
2–Call
ENTER
3–Config
4–More
1/2