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MFJ-1278B MULTI-MODE OPERATIONAL COMMANDS
DISPLAY is an immediate command, and with no class parameter will cause all control
parameters and their current values to be displayed. Sub-groups of related parameters can be
displayed by specifying the optional parameter-class. Individual parameters can be displayed
by entering the parameter name with no options.
DISPLAY Mode: AMTOR Immediate Command
Used to display all of the current AMTOR parameters, type DISPLAY at the "a_cmd:"
prompt. The user must be in the AMTOR mode to obtain the a_cmd: prompt.
DWAIT n Mode: Packet Default: 33
Parameters:
n 0 - 250, specifying default wait time in 10 ms intervals.
This value is used to avoid collisions with digipeated packets. The MFJ-1278B will wait the
default wait time after last hearing data on the channel before it begins its own keyup
sequence, unless the MFJ-1278B is waiting to transmit digipeated packets. This value should
be agreed on by all members of a local area when digipeaters are used in the area. The best
value will be determined by experimentation, but will be a function of the keyup time
(TXDELAY) of the digipeater stations.
This feature is intended to help alleviate the drastic reduction of throughput that occurs on a
channel when digipeated packets suffer collisions. It is necessary because digipeated packets
are not retried by the digipeater, but must be restarted by the originating station. If all
stations specify a default wait time, and the right value of n is chosen, the digipeater will
capture the frequency every time it has data to send, since digipeated packets are sent without
this delay.
The DWAIT timer is defeated (superseded) when the command ACKPRIORITY is ON.
EAa ON/OFF Mode: Pactor Default ON
"Echo As Acknowledged". When ON the TNC echos transmitted data to the terminal upon
receipt of the remote's acknowledgement of the same data.