Spectrum DSP M2 User Manual

Spectrum DSP M2 User Manual V1.1
Tips to minimize processor loading when using DSP:
• The DSP Noise Reduction and the Automatic Notch Filter (“Notch”) are separate
functions that operate independently. Because of this, operating on “NR+NOT” mode
takes more processor “horsepower” than either “NR” or “NOTCH” alone.
• The noise blanker takes about as much processor power as both the DSP NR and
“Notch” put together which is why turning on the noise blanker in addition to DSP can
significantly slow down the transceiver's response – and also why the noise blanker is
disabled in AM mode and when set to a wide bandwidth mode – either of which take
more processor power in their own right!
• When DSP NR is active, the parameter “DSP NR FFT NumTaps” can significantly
change processor loading: The higher this value, the more loading. If you need to
have DSP turned on, but you find the user interface to be operating too slowly, try
setting this to a lower value: This can decrease the “quality” of the noise reduction
somewhat, but it will free some processor power.
WARNING:
• It is possible to select the combination of wide bandwidth, DSP noise reduction
and DSP Notch (e.g. “NR+NOT”) while in AM mode. This combination can “stall”
the radio with too much processor power, making operation sluggish and result
in distorted audio. If you do this, you may press-and-hold the DSP button to
disable DSP and “un-select” some of these options.
P 20

Spectrum DSP M2 Specifications

General

Brand	Spectrum
Model	DSP M2
Category	Test Equipment
Language	English