Robotron Pty Ltd G9P 用户手册
WiNRADiO G39DDC User’s Guide
65
Using the Max. gain control it is possible to limit the maximum gain that the
AGC has at its disposal, and so prevent excessive “pumping noise” between
transmissions. This is especially useful with SSB signals or when monitoring
point-to-point transmissions where the transmitter is switched on intermittently.
AGC has at its disposal, and so prevent excessive “pumping noise” between
transmissions. This is especially useful with SSB signals or when monitoring
point-to-point transmissions where the transmitter is switched on intermittently.
In such cases, if the maximum gain was not limited, the AGC might tend to
increase the maximum gain too much, which could result in unpleasant noise
bursts between transmissions. By limiting the maximum gain, such noise
bursts can be reduced or eliminated.
increase the maximum gain too much, which could result in unpleasant noise
bursts between transmissions. By limiting the maximum gain, such noise
bursts can be reduced or eliminated.
Manual Gain
The Manual gain mode can be enabled using the Manual button, which is
mutually exclusive with the AGC button. In this mode, the gain can be adjusted
manually to the desired value using the Gain control:
mutually exclusive with the AGC button. In this mode, the gain can be adjusted
manually to the desired value using the Gain control:
Useful notes about AGC to remember:
1. In AM, AMS, LSB, USB, ISB, DSB and CW modes, the gain setting affects
loudness. If the receiver volume appears too low (and yet the volume control is
all the way up), make sure that AGC is enabled
loudness. If the receiver volume appears too low (and yet the volume control is
all the way up), make sure that AGC is enabled