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10. ADVANCED OPERATION
10.1. SIGNAL ATTENUATOR
This function is used to lower the receiver sensitivity in case the signal is too strong (audio is
distorted), thus overloading the receiver RF stage.
The attenuation is approx. 10dB. However the S-meter value remains unchanged.
1.
Press [MENU] then use [▶] to select [OPT] and press
[ENT].
2.
Use [▶] to select line 2, [ATT] and press [ENT].
3.
Select ON or OFF with the dial knob.
4.
Press [ENT] four times.
When set to ON, [ATT] will be displayed on the main screen.
10.2. AGC
AGC (automatic gain control) balances the average volume despite amplitude variations in
the input signal. The recovery time of AGC can be adjusted for AM signals (AM, USB, LSB,
CW) to better fit specific kinds of signals.
Typically, FAST is used for CW (Morse code signals), SLOW for USB and LSB, and MID for
AM broadcasts.
1.
Press [MENU], then [ENT].
2.
Use [▶] to select [VFO EDIT], then press [ENT].
3.
Use [▶] to select line 9, [AGC], then press [ENT].
4.
Select the desired recovery time with the dial knob.
Available selections are:
FAST: AGC with fast recovery timing
MID:
AGC with average recovery timing
SLOW: AGC with slow recovery timing
RF-G: Manual gain
5.
Use [▶] to select line 9, [VFO PARAM SET], then press [ENT] to save the selection.
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