Operation Manual

29FT-817ND Operating Manual
SSB TRANSMISSION
TRANSMITTER OPERATION
VOX Operation
The VOX system provides automatic transmit/receive switching based on voice input to the
microphone. With the VOX system enabled, you do not need to press the PTT switch in
order to transmit.
1. Press the key momentarily, then rotate the knob, as needed, until Operating
Function Row 10
[
VOX, BK, KYR
]
appears on the display.
2. Press the
(
VOX
)
key to activate the VOX circuitry. The “” icon will appear at the
right of the “VOX” indication.
3. Without pressing the PTT switch, speak into the microphone in a normal voice level.
When you start speaking, the transmitter should be activated automatically. When you
finish speaking, the transceiver should return to the receive mode (after a short delay).
4. To cancel VOX and return to PTT operation., again press the
(
VOX
)
key. The “”
icon will disappear.
5. The VOX Gain may be adjusted, so as to prevent accidental transmitter activation in a
noisy environment. To adjust the VOX Gain:

While still in Operating Row 10
[
VOX, BK, KYR
]
, press and hold in the
(
VOX
)
key for one second. This is a “hot key” feature which will instantly recall Menu #51
(VOX GAIN).

While speaking into the microphone, rotate the knob to the point where the
transmitter is quickly activated by your voice, without causing background noise to
activate the transmitter.

When you have selected the optimum setting, press and hold the key for one
second to save the new settings and return to normal operation.
6. The “Hang-Time” of the VOX system (the transmit-receive delay after the cessation of
speech) may also be adjusted via the Menu. The default delay is 1/2 second. To set a
different delay time:

Press and hold in the key for one second to activate the Menu mode.

Rotate the knob to select Menu #50 (VOX DELAY).

Rotate the knob while saying a brief syllable like “Ah” so as to set the desired
delay time.

When your adjustments are complete, press and hold in the key for one second
to save the new setting and return to normal operation.
The delay time for return to the receive mode is set independently on CW and
voice modes; for CW, use Menu #17 (see next section).