Timewave DSP-599zx, Operating Manual

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DSP-599zx Audio Noise Reduction Filter
March 6, 1997 1-7
Bypass Control
The DSP-599zx has bypass features that vary with the mode of operation.
In voice and CW modes, the bypass setting routes the signal through relay
contacts to completely bypass the electronic circuitry of the DSP-599zx.
Turning the power off to DSP-599zx uses the same relay bypass method. In
data mode, the bypass route is through the DSP processor. The amount of
signal delay through the bypass route is equal to the delay through the pro-
cessed signal route. The purpose of this delay equalization is to allow
switching between signal processing and bypass without breaking the hand-
shaking link of modes like PacTOR and G-TOR.
Bypass respects the status of the speaker switch. If the speaker is turned off,
bypass leaves it off. The speaker will always, however, come on when pow-
er is turned off on the DSP-599zx.
Operating Modes
The DSP-599zx has three normal operating modes that operators will most
often use:
• Voice
• CW
• Data
Pressing [Mode] steps from Voice mode to CW mode to Data mode back to
Voice mode in a circular queue.
There are two more modes that operators will normally use during initial
configuration, installation, and troubleshooting,
• Test
• Setup
Pressing [Shift+Mode] once places the DSP-599zx in Test mode. Pressing
[Shift+Mode] again steps to Setup mode. Pressing [Mode] at any time
places the unit back in one of the normal operating modes again. When in a
menu or test instrument mode, pressing the middle knob will back you up
one level. Think of the middle button in most cases as a cancel/clear button.
Function
6
Shift
5
AGC
3
Bypass
Data
DSP-599zx
CW Voice
Mode
1
Random
4
Tone
2
599-061
Setup Test
Rcl/ Store
Spkr/ Chan
High Pass
Center Freq
Time