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2. Set Hang Time: To advance the edit menu to Hang Time, press the AGC button
again. The second parameter, HANG, should now flash alternately with Sec. To alter
hang time, rotate the Edit Knob to select the desired value. Hang time is adjustable from
0.00 to 99.9 seconds.
3. Set Decay Time: To advance to Decay Time, press the AGC button again. The third
parameter, DECAY, should flash alternately with dB/S. Rotate the Edit Knob and select
the desired value. Decay is adjustable from 0.01 dB/Sec to 99.9 dB/Sec.
Press the AGC button one more time to disengage the edit function and restore the normal
AGC display.
Activating any other edit parameter button will disengage the AGC edit function and the
current settings will be retained until a new selection is made. Note that the AGC is
always operational, even when the edit function is turned OFF and the AGC light is off.
4-21 NOTCH button: The Notch button is used to activate a narrow-band reject filter
to eliminate unwanted single-frequency heterodynes. The Notch works in CW, CW1,
LSB, and USB modes only, and tunes manually over a 4000-Hz range (±2000 Hz). Note
that the Notch disengages automatically when bandwidth settings exceed 4 kHz or when
Fast Filters are selected.
To enable the filter, press the Notch button. It's LED will illuminate and the Edit Knob
will be assigned to the filter's control function. Once enabled, the previously-entered
filter frequency (in Hz) will appear in the display:
A. Adjust Notch via the Edit Knob: Rotate the Edit Knob to eliminate the undesired
signal or heterodyne. The filter's new center frequency will appear in the display. Note
that a + notch frequency cancels heterodynes in the USB passband, and a - frequency
cancels them in the LSB passband. Pressing another function button deactivates the Edit
Knob. To fully deactivate the Notch filter, press the Notch button for OFF, as indicated
in the Aux Parameter window.
4-10
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