Epson Multi-mode Data Controller MFJ-1278B - Manual (Page 179)

MFJ-1278B MULTI-MODE OPERATIONAL COMMANDS
ANSWRQRA ON/OFF Mode: Packet Default: ON
Parameter:
ON
MFJ-1278B responds to non-digipeated UI frames addressed to QRA, within 1 to
16 seconds, with an empty ID packet.
OFF
Disables MFJ-1278B 's ping-response function.
QRA ("Who are you") pinging is supported by the MFJ-1278B. A QRA ping polls all of the
TNCs within range. A random number of seconds later, each TNC that heard the QRA ping
will transmit its identification packet. The purpose of this feature is to reveal to the
packeteer, particularly the transient one, the names of all reachable TNCs and digipeaters.
In order to send a QRA ping:
1.
Set the unprotocol callsign to QRA
cmd: UNPROTO QRA<CR>
The MFJ-1278B will respond with whatever the UNPROTO command was set to previously.
2.
Manually send an unconnected packet
cmd: CONVERSE<CR>
<CR>
^C
cmd:
This sequence will send an unconnected packet. Once the local TNCs have responded with
ID packets, then the user can press a "CRTL-C". The MFJ-1278B will respond with the
cmd: prompt.
ARCVCHAR nn
Mode: RTTY/ASCII Default: $12
Parameter:
nn = 0 to 127, decimal or $00 to $7F, hexadecimal
The ARCVCHAR command specifies the character used in RTTY/ASCII/CW modes to
return to the receive mode after transmitting.