Specifications

The first way is automatic:
Your MailDrop will send "STAND BY" and then the WRU request to the
remote user. Always be sure you have entered a proper Auto-Answerback
(AAB) message consisting of "QRA YOURCALL YOUR_MYSELCAL YOUR_MYIDENT"
as described earlier in this chapter.
The second way covers beginning AMTOR users:
AMTOR users who have not entered a proper Auto-AnswerBack response or
for some reason have the WRU feature disabled cannot be automatically
identified by your MailDrop. In this case, your MailDrop will ask the
calling station to identify as follows:
After 10 seconds your MailDrop will ask the calling station to
identify by sending "QRZ? DE your callsign+?" to the calling station.
The calling station then has 3 minutes to respond with its callsign.
The ID must contain either "QRA" or "DE" and must end with "+?".
An Amateur with the call WX7BBB would send the following:
QRA WX7BBB +?
If no satisfactory ID occurs within 3 minutes from the establishment
of the link, the link is automatically shut down.
The third way covers experienced users:
Experienced AMTOR users may want to save time by simply sending QRA
followed by their callsign immediately after establishing the link.
For example station WX7BBB may simply enter the following immediately
after establishing the ARQ link.
QRA WX7BBB +?
The PK-900 then sends the user the MTEXT string if the MailDrop
message command (MMSG) is ON. The default text is shown below:
WELCOME TO MY AEA PK-900 MAILDROP.
TYPE H FOR HELP.
7.6.5 Caller Prompts
The command prompt that the MailDrop sends the remote user in AMTOR is
shortened from that used in the Packet mode and is shown below:
WX7BBB DE WX7AAA GA+?
TMPROMPT is the AMTOR MailDrop message prompt sent to a remote station
by your MailDrop. The default prompt is:
GA subj/GA msg, '/EX' to end.
Text before the first slash is sent to the user as the subject prompt;
text after the slash is sent as the message text prompt.
1/93 7-12