Yaesu FT-410 Operation Manual page 4

F p
rOnT anel
11. ATT Button
This button selects the ATT level.
12. COMP Button
This button turns the Speech Processor on and
off.
13. V/M Button
This button toggles frequency control between
VFO-A and the memory system. In memory
mode.
14. GRP Button
Pressing this button allows you to select a
memory group.
15. / Button
These buttons select the operating band.
16. MAIN DIAL Knob
This knob adjusts the operating frequency.
17. NB Button
This button turns the IF Noise Blanker on and off.
Press this button to reduce short-duration pulse
noise.
18. TUNER Button
Press this button momentarily to toggle the
Automatic Antenna Tuner on/off.
Press and hold in this button to begin the
automatic Tuning.
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19. SWR Button
Indicates the Standing Wave Ratio (Forward/
Reflected).
20. AF Knob
This knob sets the receiver's audio volume level.
Typically, you will operate with this control set
between the 9 o'clock and 10 o'clock positions.
21. RF/SQL Knob
In the factory default, this knob adjusts the gain
of the receiver's RF and IF stages. Using Menu
Item "SQL/RF Gain", this knob may be changed
to function as a Squelch control, which may be
used to silence background noise when no signal
is present.
22. CLAR Knob
Pressing this button activates the Clarifier, to
allow temporarily offsetting the receive frequency.
23. SHIFT Knob
This knob shifts the IF DSP passband to reduce
an interfering signal which is inside the IF
passband.
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