Specifications

have control of their HF transmitters when any automatic device such
as the PK-900 MailDrop is in operation.
With this in mind, we have designed the AMTOR MailDrop so that it can
be disabled and then re-enabled at any time during an ARQ link simply
by turning the command TMAIL (TOR MAIL) OFF. This allows you the
SYSOP to make your MailDrop available to other stations and still
break in to chat with remote stations at any time. This could come in
handy should you want to provide some help or information to a remote
station using your AMTOR MailDrop.
7.6.2 Settings For AMTOR MailDrop Operation
Before a remote AMTOR user can access your MailDrop, be certain that
MYCALL (on Port 1) is set to your Amateur callsign and MYSELCAL is set
to your 4-character AMTOR SelCall. To allow CCIR 625 AMTOR access to
your MailDrop, your 7-character MYIDENT must also be entered. Once
these commands have been entered, you must then enter the AMTOR mode.
7.6.3 Starting AMTOR MailDrop Operation
Remote access to your AMTOR MailDrop is controlled by the command
TMAIL which is short for TOR MAIL. The TMAIL command controls remote
access to the AMTOR MailDrop in the same way that the MAILDROP command
controls remote Packet access.
Turn the TMAIL command ON (default OFF) to allow remote stations to
access your MailDrop in ARQ AMTOR. Turn TMAIL OFF to have normal ARQ
QSOs with other stations in the AMTOR mode.
7.6.4 Local Logon to the MailDrop
To locally access your MailDrop use the MDCHECK command as described
in chapter 5 of this manual on MailDrop operation.
7.6.4.1 Remote Logon to your AMTOR MailDrop
To the remote user, the AMTOR maildrop user interface is slightly
different from the packet interface due to the differences between the
two modes.
When CODE is set to 0 and the ITA#2 alphabet is used in AMTOR, only
UPPER case characters are sent. If you the SYSOP set CODE to 2
enabling the Cyrillic extensions, both upper and lower case characters
can be sent and received. See the CODE command for information and
limitations of this feature.
When a station links with your AMTOR MailDrop, your PK-900 first
identifies your station by sending your callsign and the amount of
free MailDrop memory as shown below:
DE WX7AAA (AEA PK-900) 17528 FREE.
Since AMTOR transmissions do not self-identify, your MailDrop will
force the remote user to identify in one of three possible ways.
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