Specifications

11.7.6 Sending Only Complete Words (WORDOUT)
Some PACTOR users like to have their words sent out only when they are
complete. This allows the word you are currently typing to be edited
as long as you have not typed a <Space> character or punctuation.
Turning WORDOUT ON activates this feature. See the Command Summary
for more information.
11.7.7 Operating on the "Wrong Sideband"
PACTOR, like packet is mark-space polarity insensitive. Once linked
the PACTOR protocol alternates the data polarity every transmission.
A specific header synchronizes the system during non-linked operation.
For this reason, there is no "wrong" sideband. You may operate on
either LSB or USB. If you are going to change to other modes, for
example Baudot, then LSB must be used. It is suggested that LSB be
used to make mode changes simple as well as keeping the radio dial
frequency reading consistent with other users.
If you are using a radio that has direct FSK inputs, keep in mind that
PACTOR uses 200 Hz shift and most direct FSK capable radios are set
for 170 Hz shift. If the 170 Hz shift can not be adjusted to 200 Hz,
use the TX audio from the PK-900 to drive the microphone input in LSB.
11.7.8 Little Used PACTOR Commands
There are four seldom-used PACTOR commands that are accessible with
the UCmd command. This command is of the form UCmd n x, where n is
the UCmd number and x is the setting. Several examples are shown in
the use of UCmd:
UCMD 5 Will show the current setting of command 5
UCMD 4 10 Will set command 4 to the value 10
UCMD 1 OFF Will set the value of command 1 to zero
UCMD 3 ON Will set the command 3 to its default value
UCMD Will show the setting of the last UCMD entered
The PACTOR UCmd commands are:
UCMD 0: Default 3, maximum 30. This command sets the number of
correct packets in a row that must be received before
generating an automatic request to change from 100 to
200 baud. Also, see the command PT200 in 11.7.4.
UCMD 1: Default 6, maximum 30. This command sets the number of
incorrect packets in a row that must be received before
generating an automatic request to change from 200 to
100 baud. Also see the command PT200 in 11.7.4
UCMD 2: Default 2, maximum 9. This command sets the number of
packets sent in a baud rate speed-up attempt.
UCMD 3: Default 5, maximum 60. This command sets the maximum
number of Memory ARQ packets that are combined to form
one good packet. When this number is exceeded, all
stored packets are erased and Memory ARQ is
re-initialized.
3/93 11-11