Robotron Pty Ltd G9P 用户手册
WiNRADiO G39DDC User’s Guide
39
AM
Amplitude Modulation
AMS Amplitude Modulation (Synchronous Demodulation)
LSB
Lower Side Band
USB
Upper Side Band
ISB
Independent Side Bands
DSB
Dual Side Bands
CW
Continuous Wave (Morse Code)
FM
Narrow-Band Frequency Modulation
FMW Wide-Band Frequency Modulation
DRM “Digital Radio Mondiale” (HF Digital Radio)
FSK Frequency Shift Keying
UDM User Definable Mode
In addition to the standard AM, LSB, USB, CW and FM modes, the Excelsior
receiver is equipped with several special modes, AMS, ISB, DSB, DRM, FSK
and UDM:
receiver is equipped with several special modes, AMS, ISB, DSB, DRM, FSK
and UDM:
AMS Mode
The AMS mode is used to improve reception quality of amplitude-modulated
signals, especially those affected by selective fading which occurs over a large
distance.
signals, especially those affected by selective fading which occurs over a large
distance.
When the AMS mode is selected, special controls appear under the tuning tab,
making it possible to select one (or both) of the signal’s sidebands to achieve
optimum reception:
making it possible to select one (or both) of the signal’s sidebands to achieve
optimum reception: