Vertex Standard FT-950 Manual Do Utilizador

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FT-950 
Operating Manual 
Vertex Standard Co., Ltd. 
44 
CONTOUR Filter (See page ??) 
The DSP Contour filter is a unique capability providing either nulling or peaking of 
tunable segments of the receiver passband, so as to suppress interference or excessive 
frequency components on an incoming signal, or to peak those tunable frequency 
segments. The amount of nulling/peaking, and the bandwidth over which it is applied, 
are adjustable via the Menu. 
 
IF SHIFT (See page ??) 
The passband center frequency response of the IF DSP filtering may be adjusted using 
this control. 
 
IF WIDTH (See page ??) 
The width of the IF DSP filtering may be adjusted using this control. 
 
IF NOTCH (See page ??) 
The IF Notch filter is a high-Q notch filter that can significantly reduce, if not 
eliminate, an interfering carrier. 
 
DNF (Digital Notch filter) (See page ??) 
When multiple interfering carriers are encountered during reception, the Digital Notch 
Filter can significantly reduce the level of these signals. 
 
DNR (Digital Noise Reduction) (See page ??) 
The DSP’s Digital Noise Reduction (DNR) feature utilizes sixteen different 
mathematical algorithms to analyze and suppress different noise profiles encountered 
on the HF/50 MHz bands. Choose the selection that provides the best noise suppression, 
which concurrently will allow the signal to rise up out of the noise. 
 
AGC (See page ??) 
The AGC system is highly adaptable to changing signal and fading characteristics, 
making reception possible under the most difficult conditions. 
 
ATT 
When extremely strong local signals or high noise can still degrade reception, you can 
use the [ATT] button to insert 6, 12, or 18-dB of RF attenuation in front of the RF 
amplifier.