Timewave PK-232MBX, Руководство по эксплуатации

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PK-232 MBX – OPERATING MANUAL AMTOR AND NAVTEX OPERATION
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7.4.3
Speed Change Not Permitted
In accordance with FCC Part 97.69 and international regulations, AMTOR is operated at
100 bauds. The PK-232 does not permit any other speed.
7.4.4 Echoing Transmitted Characters As Sent (EAS)
EAS has special significance in ARQ AMTOR. If EAS is on, you will see characters echoed
to your screen only after your partner in the AMTOR link, has validated them. With EAS
ON, the characters appear on your screen three at a time.
o If the data scrolls across your monitor at an even rate, you can assume that you
have a good ARQ link.
o If the data hesitates or scrolls in "jerky" intermittent fashion, that's generally a sign
that the radio link is not too good.
o If the characters stop appearing on your monitor, the link is failing or has failed.
7.4.5 Sending Only Complete Words (WORDOUT)
Some AMTOR users like to have their words sent out only when they are complete. This
allows the word you are currently typing to be edited as long as you have not typed a
<Space> character. Turning WORDOUT ON activates this feature. See the Command
Summary for more information.
7.4.6 Operating on the Wrong Sideband
In AMTOR operation it is important to be operating on the correct sideband, otherwise
other stations will not be able to copy you. If you find a station operating on the wrong
sideband, you can reverse your receive sense with the RXREV command.
Similarly, if someone tells you that you are on the wrong sideband, you can correct your
transmit signal sense with the TXREV command. See the Command summary for more in-
formation on these commands.
7.5
Monitoring ARQ AMTOR Contacts with ALIST
Use the "ALIST" command to monitor ARQ traffic flowing between two stations linked in an
ARQ contact. Your PK-232 will try to synchronize with whichever of the two linked ARQ sta-
tions is the Information Sending Station at the moment.
Mode A Listen operation does not give you error detection or error correction; your PK-232
is not one of the two stations two stations locked to each other. If the other two stations are
enjoying a good link, you'll probably get good copy from that link.
Your PK-232 will not print a block of data if that block contains the same information as the
previous block. If the "ISS" (Information Sending Station) is repeating the same block, you
won't print it twice, unless you receive an error. If the stations you're monitoring are sending
error and RQ codes and repeating blocks of characters across their link, you may see some
repeated character blocks. If they're having link problems, the data on your screen can look
very strange indeed, although the two synchronized stations are getting error-free copy.