Ten-Tec ORION II, Руководство пользователя

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566 manual Version 4 – October 2006
Part #74410
Printed in USA
31
CW Rise/Fall allows the operator to adjust
the rise and fall time of the transmitting CW
envelope. The adjustable values are 3 ms
to 10 ms, depending on whether the internal
keyer or external keying is used, and the
speed at which the internal keyer is set. The
default value is 5 ms. Lower values like 3
ms will result in a “harder” keying sound with
a quicker slope from keying initiation to full
envelope and back. Higher values result in
more gentler slopes for the CW transmit
envelope on the “make” and “break” and
result in a softer transmitted CW note.
For the internal keyer, 3 to 10 ms is
available at speeds up to 30 WPM. Past 30
WPM, the available values are 3 to 5 ms.
Keying at “softer” rise and fall times above
30 WPM can result in “mushy”, non-
definitive sounding CW transmit.
For external keying, the rise and fall times
available are 3 ms to 5 ms regardless of the
keyer speed.
Key PTT in SSB determines whether or not
the ORION can be put into SSB transmit
mode by a closure to the front or rear panel
key jacks. If set to “on”, pressing a CW key
(or some other closure to ground connected
either of the key jacks) will put the radio into
transmit in SSB modes. If set to “off”, the
radio will not be put into SSB transmit in
SSB modes when a closure to ground is
present at one of the two key jacks.
PTT in CW as determines the action of the
transmitter in relation to a PTT signal
appearing either at the front panel
microphone jack or pin 3 on the AUX I/O
jack on the rear of the transceiver. Please
note this menu item does NOT affect
anything plugged into either the front panel
or rear panel key jacks.
All of the below only applies when the
transceiver is being used in LCW or UCW
modes.
When set to “key”, a PTT closure at the mic
jack or on pin 3 of the AUX I/O jack will
result in a transmitted CW signal. A closure
to ground will key the radio keydown in CW
mode. An external keyer connected to
either the mic jack or AUX I/O pin 3 can be
used for transmitting CW.
When set to “mox”, a PTT closure at the mic
jack or on pin 3 of the AUX I/O jack will
result in the radio being put into potential
transmit. PTT will close, but no signal will
be transmitted. A CW signal (from an
external source) can then be injected via
one of the two key jacks and the ORION will
transmit CW. When finished, open the
closure and the radio returns to receive.
This function can be used to override QSK
operation from an external source and/or
provide exact PTT switching from an
external source.
When set to “none”, ORION will not respond
to a PTT closure to ground or a closure at
AUX I/O pin 3 when in CW modes.
Recommended reading: See EXTERNAL
CW OUTPUT PLUS CW KEYER
OPERATION FROM PADDLES
in Chapter
4 for practical application.
Keyer Mode allows the user to toggle
between Curtis A and Curtis B modes when
using the ORION II internal keyer for CW
operation.
(VOX) VOX MENU
Figure 3-3 VOX Menu
The VOX menu is accessible by pressing
the button on the front panel immediately to
the right of the screen next to the “VOX”
annunciator.
VOX Trip Level is the gain level required to
put the radio into transmit. This control
determines how sensitive the VOX circuitry
is to input from the microphone. The lower
the value set, the more sensitive the VOX
trip becomes.
Anti-Vox Level is set to prevent tripping of
the VOX circuitry. Set as needed to prevent