Specifications

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FAx Immediate Command
Mode: Command Host: FA
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FAX is an immediate command that switches Radio Port 1 of your PK-900 into the
facsimile mode. The FAX mode is available only if the maildrop (or FREE
command) shows at least 3742 bytes free. You must kill MailDrop messages until
the number reaches this level if you wish to operate FAX.
When the PK-900 is in the FAX mode, Packet operation on Radio Port 2 is
disabled. Facsimile transmissions contain so much data, that there is simply
not enough time to handle Packet while facsimile data is being transmitted or
received.
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FAXNeg ON|OFF Default: OFF
Mode: FAX Host: FN
_________________________________ Parameters: __________________________________
ON - The white and black senses are reversed
OFF - The white and black senses are normal
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One might use FAXNEG ON when receiving an image consisting mostly of black, as
in a satellite photo. In this case it might help to save your printer ribbon,
as well as accentuating features such as cloud cover.
FAXNEG ON is NOT the same as RXREV ON. RXREV reverses the entire signal,
including the sync pulses. FAXNEG keeps the sync pulses so that they can be
recognized, but reverses the image data.
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FEc Immediate Command
Mode: AMTOR Mode B Host: FE
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FEC is an immediate command that starts an AMTOR FEC (Mode B) transmission on
Radio Port 1 of the PK-900. Use FEC for CQ calls in AMTOR. Be sure to
include your SELCALL (MYSELCAL) and MYIDENT code in your CQ message so that the
distant station can call you back in ARQ.
FEC is necessary for all round table AMTOR contacts. When operating in FEC, let
your PK-900 begin each transmission with three to five seconds of idling. The
RTTY practice of transmitting a line of RYRYRY is unnecessary on FEC.
You can signify the end of your FEC transmission by typing the changeover sign
"+?," internationally recognized as the RTTY equivalent of "KKK." However, in
FEC, "+?" is not a software command. You still have to un-key your transmit-
ter (with the RECEIVE, <CTRL> D, or CWID, <CTRL> F, characters or the RCVE,
<CTRL> C R, command) as you would in RTTY.
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