25
VX-1400 O
PERATING
M
ANUAL
O
PERATION
T
RANSMISSION
For Voice transmission, close the
PTT
(Push To Talk) switch on the microphone; the
transmitter will now be activated and the
TX/BUSY
indicator glows red. Hold the
microphone about 1 inch (25 mm) from your mouth, and speak into the front of the
microphone in a normal voice level. Release the
PTT
switch to return to the receive
mode (the red
TX/BUSY
indicator will disappeared).
For CW (Morse Code telegraphy) in the A1A mode, begin sending using your tele-
graph key or electronic keyer. The
VX-1400
will automatically be placed in the trans-
mit mode when you start to send, and will revert to the receive mode when you stop
sending. As you send, a “Sidetone” audio generator allows you to monitor your send-
ing.
For Data transmission (including Morse Code telegraphy using a TNC (Terminal Node
Controller) and keyboard, or similar computer-driven data transmission devices), trans-
mit/receive control is exercised by the software which accompanies the data trans-
mission equipment in use. See the User’s Manual for your terminal equipment for
operating instructions. Remember to follow the maximum power output guidelines
during continuous-duty operation such as RTTY (Radio Teletype) in the J2B mode.
Adjust the TX Audio level from the TNC for a maximum of 50 Watts of power output
(4 segments illuminated on the Power Output Bar Graph) if long periods of continu-
ous transmission are anticipated.
Note
: The CW and Data transmission requires optional
CT-139
Accessory Cable.
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