COMMANDS
49
TRFlow
ON | OFF
default OFF
All Units
Packet
This command allows the TNC to respond to software flow control from the computer while in
Transparent Mode. When TRFLOW is OFF, software flow control is not used in the Transparent
Mode. Hardware flow control will be expected from the computer by the TNC. The computer pro-
gram needs to use hardware flow control, and the RS-232 cable needs to be wired with CTS and
RTS connected. When ON, software flow control is enabled and the START and STOP characters
are sent by the computer to the TNC to control the flow of data. When Start and STOP are set to
$00, hardware flow control must be used. If not zero, The TNC will respond to the computer's
START and STOP characters and remain transparent to other characters from the terminal or com-
puter.
When START and STOP are set for software flow control (normally Ctrl-Q and Ctrl-S) all characters
can be received in Transparent Mode (including the START and STOP characters) by setting
TRFLOW ON and TXFLOW OFF. You will not, however, be able to send the START and STOP char-
acters, since the TNC will interpret them as flow control.
See also: trans, txflow, xflow
TRIes
[n]
(n = 0 – 15)
V 2.85
All Units
Packet
The TRIES command will display and optionally set the number of attempts which have been
made to re-send a packet which failed to reach its destination. For instance, if RETRY is set to 10,
TRIES will show how many attempts have already been made to pass the data. For example, if
TRIES were to show 8,
TRIES 3
would reset the counter to make the TNC believe that it had only
tried 3 times so far, thus allowing 7 more attempts before the RETRY limit is exceeded.
See also: retry
TXDAmtor
n
(n = 0 – 9)
default 5
KAM
AMTOR
This command establishes the transmit key-up delay used in AMTOR operation. Each number in-
crement sets a multiple of 10 ms.
See also: amtor
TXdelay
n
(n = 0 – 255)
default 30
KPC-1
/
KPC-2
/
KPC-2400
Packet
default 30/30
KAM
/
KPC-4
Packet
This command sets the transmitter key-up as 10 × n ms. This setting establishes the time delay
between the application of push-to-talk and AFSK data tones to the transmitter. Flags (character to
begin packet) are sent during the delay. This command needs to be set long enough to your trans-
mitter time to come to full power before data is sent. If set too short the beginning of the packet
will be chopped off and another station will never be able to decode you. If set too long, additional
flags at the beginning (heard as a repetitive sound) just wastes the air time. It may be necessary
to increase your TXDELAY to allow the receiving station sufficient time for his receiver to detect
your signal (i.e. switch from transmit back to receive).
