Vox (Automatic Tx/Rx Switching Using Voice Control) - Yaesu FT-950 Operating Manual

T
RANSMITTER
VOX ( SSB/AM/FM M
Instead of using the microphone's PTT switch or the front panel [ MOX ] switch to activate the transmitter, the VOX (Voice
Operated TX/RX Control) system provides hands-free, automatic activation of the transmitter, based on voice input into
the microphone.
1. Press the [ VOX ] button to activate the VOX circuitry.
The LED inside the [ VOX ] button glows red.
2. Without pressing the PTT switch, speak into the mi-
crophone in a normal voice level. When you start speak-
ing, the transmitter should be activated automatically.
When you finish speaking, the transceiver should re-
turn to the receive mode (after a short delay).
3. To cancel VOX and return to PTT operation, press the
[ VOX ] button again. The LED inside the [ VOX ] but-
ton will disappear, signifying that the VOX circuitry
has been turned off.
A :
DVICE
The VOX Gain may be adjusted to prevent accidental
transmitter activation in a noisy environment. To ad-
just the VOX Gain:
Press the [ VOX ] button to activate the VOX cir-
cuitry, if necessary.
Press the [ MENU ] button momentarily to engage
the Menu mode.
Rotate the [ SELECT ] knob and select Menu item
"115 TGEN V GAIN
115 TGEN V GAIN 115 TGEN V GAIN
115 TGEN V GAIN". 115 TGEN V GAIN
A :
DVICE
Press the [ SELECT ] knob to toggle the Menu item
display between "115 TGEN 115 TGEN" and "V GAIN
115 TGEN 115 TGEN
115 TGEN
While speaking into the microphone, rotate the
[ CLAR/VFO-B ] knob to the point where the trans-
mitter is quickly activated by your voice, without
background noise causing the transmitter to acti-
vate.
When you satisfied with the setting, press and hold
in the [ MENU ] button for one second to save the
new setting and exit to normal operation.
The "Hang-Time" of the VOX system (the transmit/
receive delay after the cessation of speech) may also
be adjusted via the Menu mode. The default delay is
500 msec. To set a different delay time:
Press the [ VOX ] button to activate the VOX cir-
cuitry, if necessary.
Press the [ MENU ] button to engage the Menu.
Rotate the [ SELECT ] ] knob and select Menu item
"116 TGEN VOX DLY
116 TGEN VOX DLY 116 TGEN VOX DLY 116 TGEN VOX DLY 116 TGEN VOX DLY".
A :
DVICE
Press the [ SELECT ] knob momentarily to toggle
the Menu item display between "116 TGEN
"VOX DLY
VOX DLY". VOX DLY VOX DLY
VOX DLY
Rotate the [ CLAR/VFO-B ] knob while saying a
brief syllable like "Ah" and listening to the hang
time for the desired delay.
When your adjustments are complete, press and
hold in the [ MENU ] button for one second to save
the new setting and exit to normal operation.
Page 66
C
ONVENIENCE
:
ODES A
UTOMATIC
V GAIN V GAIN
V GAIN". V GAIN
116 TGEN" and
116 TGEN 116 TGEN 116 TGEN
F
EATURES
TX/RX S
WITCHING USING
[ VOX ] Button
[ SELECT ] Knob
[ MENU ] Button
[ SELECT ] Knob
[ MENU ] Button
The Anti-Trip setting adjusts the level of negative re-
ceiver audio feedback to the microphone, to prevent
receiver audio from activating the transmitter (via the
microphone). This setting can also be adjusted via
Menu item "117 TGEN ANTIVOX
117 TGEN ANTIVOX 117 TGEN ANTIVOX". 117 TGEN ANTIVOX
117 TGEN ANTIVOX
VOX operation may be engaged on either Voice modes
(SSB/AM/FM) or on AFSK-based Data modes. Use
Menu item "114 TGEN VOX SEL 114 TGEN VOX SEL" (the selections are
114 TGEN VOX SEL 114 TGEN VOX SEL
114 TGEN VOX SEL
"niC niC (MIC)" and "dAtA dAtA (DATA)").
niC niC niC dAtA dAtA dAtA
FT-950 O
)
V C
OICE ONTROL
[ CLAR/VFO-B ] Knob
[ CLAR/VFO-B ] Knob
M
PERATING ANUAL