444588
41
Zoom out
Zoom in
Previous page
1/104
Next page
Page 39FT-450 OPERATION MANUAL
AUTOMATIC TX/RX SWITCHING USING VOICE CONTROL
(
VOX
)
Instead of using the microphone’s PTT 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 mi-
crophone. Setup of the VOX system takes only a few seconds.
SSB/AM MODE TRANSMISSION
1. Press the
[
F
]
button followed by the
[
VOX/STO
]
button to engage the VOX operation.
The “ ” icon will appear in the display.
2. 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).
3. To exit from VOX operation, press the
[
F
]
button
followed by the
[
VOX/STO
]
button again.
[
HOME/RCL
]
button
[
F
]
button
[
DSP/SEL
]
knob
[
VOX/STO
]
button
[
F
]
button
VOX GAIN ADJUSTMENT
Adjust the VOX gain level to prevent accidental transmitter activation in a noisy environment.
1. Press and hold the
[
F
]
button for one second to
enter the Menu mode. The “ ” icon will ap-
pear on the display.
2. Rotate the
[
DSP/SEL
]
knob to select the menu
item “VOXGAIN”.
3. Press the
[
DSP/SEL
]
knob to enable adjustment of
this menu item. The “ ” icon will be blinking.
4. Rotate the
[
DSP/SEL
]
knob to set to the point
where the transmitter is quickly activated by your
voice, without causing background noise to acti-
vate the transmitter. Available selections are 1
through 100 (factory default: 50).
Press the
[
HOME/RCL
]
button to reset the VOX
gain level to the factory default.
VOX DELAY ADJUSTMENT
(
THE TRANSMIT-RECEIVE DELAY AFTER THE CESSATION OF SPEECH
)
1. Press and hold the
[
F
]
button for one second to
enter the Menu mode. The “ ” icon will ap-
pear on the display.
2. Rotate the
[
DSP/SEL
]
knob to select the menu
item “EXT MNU”.
3. Press the
[
DSP/SEL
]
knob to enable adjustment of
this menu item. The “ ” icon will be blinking.
4. Rotate the
[
DSP/SEL
]
knob to select “ON” to ex-
pand the menu items.
5. Press the
[
DSP/SEL
]
knob. The “ ” icon re-
turns to appear continuously.
6. Press and hold the
[
F
]
button for one second to save
the new setting and return to normal operation.
7. Press and hold the
[
F
]
button for one second to
enter the Menu mode again. The “ ” icon
will appear on the display.
8. Rotate the
[
DSP/SEL
]
knob to select the menu
item “VOX DLY”.
9. Press the
[
DSP/SEL
]
knob to enable adjustment of
this menu item. The “ ” icon will be blinking.
5. Press the
[
DSP/SEL
]
knob. The “ ” icon re-
turns to appear continuously.
6. Press and hold the
[
F
]
button for one second to save
the new setting and return to normal operation.
10. Rotate the
[
DSP/SEL
]
knob while saying a brief
syllable like “Ah” and listening to the hang time,
so as to set the desired delay. Available selec-
tions are 100 through 3000 msec (factory default:
500 msec).
Press the
[
HOME/RCL
]
button to reset the VOX
delay time to the factory default.
11. Press the
[
DSP/SEL
]
knob. The “ ”” icon
returns to appear continuously.
12. Press and hold the
[
F
]
button for one second to save
the new setting and return to normal operation.
[
HOME/RCL
]
button
[
F
]
button
[
DSP/SEL
]
knob
41


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Yaesu FT-450 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Yaesu FT-450 in the language / languages: English as an attachment in your email.

The manual is 9,48 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info