USER'S GUIDE
ADVANCED PACKET OPERATION
PK232UG Rev. B 9/86
5-1
92
CHAPTER 5 – ADVANCED PACKET OPERATION
5.1.
Introduction
This chapter describes special aspects and advanced concepts not used in everyday conver-
sational operation. Read this chapter carefully if you intend to use your PK-232 for:
o
A Packet bulletin board system (PBBS)
o
Binary file transfer
o
A "host" program
o
HF or OSCAR operation
o
Special timing or other requirements needed by your radio
5.1.1.
Using Hex Notation
If you reassign parameter values in hexadecimal numbers, observe some simple rules. Be-
gin the number with a "$". The "digits" of a hex number represent multiples of powers of
16. The value 10 trough 15 are represented by the letters A trough F. The letters can be
typed in upper or lower case. For example:
$1B = (1 × 16) + (11 × 1) = 27 (decimal)
5.2.
Operation Modes
Your PK-232 has three operating modes. We discussed the Command and Converse Modes
very briefly in Chapter 4. The third mode, Transparent Mode, is a data mode like Converse
Mode, but is intended primarily for computer data interchange rather than human conversa-
tion.
5.2.1.
Command Mode
Command Mode provides the communication or dialogue between your keyboard and
your PK-232; nothing goes to the "outside world". You must use Command Mode to enter
commands which alter the PK-232's operating parameters. When your PK-232 is in Com-
mand Mode prompt is shown at the beginning of each input line.
cmd:
(Note that the
cmd:
prompt may have scrolled off the screen if your PK-232 has received
and displayed packets.)
Your PK-232 always enters Command Mode after
RESTART
,
RESET
or a power cycle. After
a power-off/power-on sequence, resident software reinitializes the PK-232's operating pa-
rameters with values stored in RAM.
After the
RESET
command is issued all operating parameters are reset to the default val-
ues stored in EPROM. The values of most parameters are stored in RAM and can be easily
changed.
5.2.1.1.
Special Characters Used in Command Mode
The following commands set special characters which are active Command Mode. See
the detailed descriptions of these commands "Command Summary" Chapter.
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