(15) [NOTCH] Switch
Pressing this button allows you to adjust the
center frequency of the IF Notch filter using
the [NOTCH] knob. While activated, the
[NOTCH] indicator in the DSP display
illuminates. Press the [NOTCH] switch
briefly to toggle the IF Notch filter on/off.
(16) [NOTCH] Knob
Press the [NOTCH] switch to turn the IF
NOTCH filter on or off. Rotate the inner
[NOTCH] knob to adjust the center
frequency of the IF NOTCH filter. The null
position of the IF NOTCH filter can be
observed on the display. Furthermore, the
display will show the center frequency of
the IF NOTCH filter for 3 seconds whenever
the [NOTCH] knob is turned.
(17) [CONT/APF] Knob
CONT
In the SSB, AM, and FM modes, press the [CONT/APF] switch then turn the outer [CONT/APF] knob to select the desired CONTOUR filter response. The CONTOUR filter is engaged via the [CONT/APF] switch.
APF
In the CW mode, press the [CONT/APF] switch and then turn the outer [CONT/APF] knob to select the desired APF (Audio Peak Filter) response. The APF is engaged via the [CONT/APF] switch.
(18) [CONT/APF] Switch
Pressing this button allows you to select the
DSP Contour filter response using
[CONT/APF] knob. While activated, the
CONTOUR indicator in the DSP display
illuminates. Press the [CONT/APF] knob
briefly to toggle the IF Contour filter
on/off.
In the CW mode, this button will activate the APF (Audio Peak Filter) which provides a very narrow audio bandwidth. While activated, the APF indicator in the DSP
display illuminates.
(19) [SHIFT] Knob
(EXCEPT ON AM AND FM MODE)
Rotate the inner [SHIFT] to move the
passband of the IF DSP filter by 20 Hz
steps. The total adjustment range is +/- 1
kHz. The position of the passband can be
observed on the display. Furthermore, the
display will show the shift value of the IF
SHIFT for 3 seconds whenever the
[SHIFT] knob is turned.
(20) [WIDTH] Knob
(EXCEPT ON AM AND FM MODE)
Rotate the outer [WIDTH] knob to set the
overall bandwidth of the IF DSP filter.
Counter-clockwise rotation reduces the
bandwidth, while clockwise rotation
increases the bandwidth. The current
bandwidth can be observed on the display.
Furthermore, the TFT display will show the
bandwidth of the IF passband for 3 seconds
whenever the [WIDTH] knob is turned.
|
(21) [BK-IN] Switch
This button turns the CW break-in capability
on and off. While CW break-in is activated,
the "BK-IN" icom appears in the TFT
display.
(22) [AF] Knob
The inner [AF] knob sets the receiver audio
volume level. Typically, you will operate
with this control set between the 9 o'clock
and 10 o'clock postitions.
(23) [RF/SQL] Knob
ADVICE:
This control may be selected between the "SQ" and "RF GAIN" functions via the Menu item "038 RF/SQL VR".
RF
The outer [RF/SQL] knob is the receiver RF gain control, which adjusts the gain of the receiver RF and IF amplifier stages. This control is normaly left in the fully clockwise position.
SQL
This knob sets the signal level threshold, below which the receiver audio is muted, in all modes. It is very useful during local rag-chews, to eliminate noise between incoming transmissions. This control is normally kept fully counter-clockwise (off), except when scanning and during FM operation.
(24) [MONI] (Monitor) Switch
This button enables the transmit monitor in all modes. While activated, the "MONI" icon appears in the TFT display.
ADVICE:
When using headphones, the Monitor function is very helpful while adjusting the Parametric Equalizer or other voice quality adjustments. The voice heard in the headphones represents the transmitted audio qualities.
|