PK-88 OPERATING MANUAL
BASIC OPERATION
3 - 4
PK-88 - 40
o
If you enter
CONNECT
without an argument, the PK-88 displays the current status
of the link.
However, if you enter
CONNECT WX1AAA
, the PK-88 issues the connect request and tries
to establish the link to WX1AAA.
Some commands such as MFILTER can use several arguments at the same time. MFILTER
accepts from 1 to 4 numerical arguments. You can type
MFILTER 12
or
MFILTER 12,26
.
Both are legal commands.
Three different types of parameters are used: Boolean, numeric, and text or string.
Boolean Parameters
Boolean parameters have only two possible values: ON or OFF, YES or NO, or EVERY or
AFTER. When a parameter is Boolean, its two possible choices are shown separated by a
vertical bar. These values can be "toggled", or alternately switched by typing simply
T
after the command name.
Numeric Parameters
A parameter designated as
n
is a numeric value. Numeric values can be entered as deci-
mal numbers, or optionally as hexadecimal numbers. When entering a hexadecimal num-
ber, you must prefix the number you type with a '$' character.
The PK-88 displays some of these numeric parameters (those which set special charac-
ters) in hexadecimal format. Here is a brief explanation of 'hex' numbers:
The 'digits' of a hex number represent powers of 16 in the same manner as the powers of
10 represented by a decimal number. The decimal numbers 10 through 15 are hexadeci-
mal digits A through F. For example:
$1B = (1 × 16) + (11 × 1) = 27 (decimal)
$120 = (1 × 256) + (2 × 16) + (0 × 1) = 288 (decimal)
Text or String Parameters
A parameter designated as text, such as the argument or 'message' for CTEXT ('connect'
message), or the MDPROMPT command prompt in the MailDrop, can be entered in any
combination of upper and lower case.
A text parameter can include numbers, spaces, and punctuation. The text is accepted ex-
actly as you type it.
Some commands require call signs as parameters. Such parameters are usually call signs,
but may be any string of numbers and at least one letter, up to six characters. The char-
acter strings identify stations sending and receiving packets.
A call sign can also include a substation identifier (SSID), a decimal number from 0 to 15
used to distinguish two or more stations on the air with the same call sign (such as a base
station, a digital repeater or 'digipeater', or a Packet switch or node).
The call sign and SSID are entered and displayed as 'call-n.' If an SSID is not entered, the
system sets it to 0 (zero); SSID '0' is not displayed by the PK-88.
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