PK-232 – MBX OPERATING MANUAL COMMAND SUMMARY
4/91 A-40 165
FEC is necessary for all round table AMTOR contacts. When operating in FEC, let your PK-232 be-
gin each transmission with three to five seconds of idling. The RTTY practice of transmitting a line
of RYRYRY is unnecessary on FEC.
You can signify the end of your FEC transmission by typing the changeover sign "+?," internation-
ally recognized as the RTTY equivalent of "KKK". However, in FEC, "+?" is not a software com-
mand. You still have to un-key your transmitter (with the RECEIVE or CWID characters or the
RCVE command) as you would in RTTY.
Flow ON|OFF Default: ON
Mode: All Host: FL
Parameters: ON - Type-in flow control IS active.
OFF - Type-in flow control is NOT active.
When FLOW is ON (default), any character typed on your keyboard causes output from the PK-232
to the terminal to stop until any of the following occurs:
o A packet is sent (in Converse Mode)
o A line is completed (in Command Mode)
o The packet length (See PACLEN) is exceeded
o The current packet or command line is canceled
o The redisplay-line character is typed
o The logical packet channel is changed
Setting FLOW ON prevents received data from interfering with your keyboard data entry. When
FLOW is OFF, data is sent to the terminal whenever it is available.
FRack "n" Default: 5 (5 sec.)
Mode: Packet Host: FR
Parameters: "n" - 1 to 15, specifying FRame ACKnowledgment timeout in 1 second intervals.
FRACK is the FRame Acknowledgment time in seconds that your PK-232 will wait for acknowledg-
ment of a sent protocol frame before "retrying" that frame.
After sending a packet requiring acknowledgment, the PK-232 waits for FRACK seconds before in-
crementing the retry counter and sending another frame. If the packet address includes any digi-
peaters, the time between retries is adjusted to:
Retry interval (in seconds) = "n" × (2 × m + 1)
(where m is the number of intermediate relay stations.)
When a packet is retried, a random wait time is added to any other wait times. This avoids lockups
where two packet stations repeatedly collide with each other.
FREe Immediate Command
Mode: All Host: FZ
Typing
FREE displays the number of usable bytes left in the MailDrop, as in "FREE 3724". This may
be useful to a Host mode application using the MailDrop.
To Next Page
Loading...