Table of Contents
Advertisement
USER'S GUIDE
For "1 by 2" call signs, the first letter is doubled, e.g., "N7ML" becomes "NNML". This
method is acceptable for most cases.
4.5.3.1
First SELCAL Installation
Type
MYSELCAL
The PK-232 will respond with:
The "blank" response occurs the first time you use the PK-232. There is no default
SELCAL.
Type
MYS
The PK-232 will respond with:
4.5.3.2
Prevent Duplicate SELCALs
Because the same call sign sequences are assigned in ten districts, it is possible that
your SELCAL could be the same as that used by another station. Using the standard
convention, "N1ML", "N2ML", "N3ML", etc., would all derive the same SELCAL, "NNML".
If you think a station in another call district or zone is also active on AMTOR and may
be using the same SELCAL, you can derive your own unique SELCAL by substituting a
letter for your call district number. Use the letter corresponding to the call district num-
ber as it appears on the keys of a standard typewriter or Baudot RTTY keyboard.
Let's assume that your call sign is N7ML. You discover that there is another station with
the call N?ML. Change your SELCAL to NUML, according to the following table:
1 = Q
2 = W
3 = E
4.5.4
Mode A (ARQ) Call - Start the Contact (
Type
ARQ<SELCAL>
(FEC) CQ call from a distant station.
Type
<CR>
ters) – your transmitter will be keyed on and off in the typical ARQ three-character burst
sequence.
After your PK-232 has locked or synchronized with the distant station, type
Converse Mode and begin your conversation.
PK232UG Rev. B 9/86
or
MYS
to load your SELCAL into the PK-232:
myselcal nnml
cmd:
MYSELCAL was
to confirm your SELCAL is properly loaded:
mys
cmd:
MYSELCAL NNML
4 = R
5 = T
6 = Y
to start the AMTOR selective calling sequence or answer a Mode B
after you've typed the fourth letter (a valid SELCAL must have four charac-
7 = U
0 = P
8 = I
9 = O
ARQ
Command)
4-10
OPERATING MODES
K
to enter the
63
Advertisement
Table of Contents
