Timewave DSP-599zx, Руководство по эксплуатации

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DSP-599zx Audio Noise Reduction Filter
March 6, 1997 2-9
You also have the choice for line output to configure the outputs in dual
mode as shown below.
The options that you choose will depend on personal operating style, types
of rigs connected, and favorite modes of operation. Feel free to experiment.
PTT Input
Proper connection of the DSP-599zx to the rigs Push to Talk circuit allows
full function of the DSP-599zx. While in voice mode, the PTT circuit in the
rig mutes the audio output of the DSP-599zx so audio feedback is not possi-
ble. Many rigs do not fully mute their audio while transmitting. When the
DSP-599zx amplifies the partially muted audio the result can be audio feed-
back through the speaker.
When operating in CW mode, the PTT circuit does not mute the speaker out-
put. This allows you to hear your internally generated sidetone from your ra-
dio. If you do not use PTT circuit, the narrow CW filter within the DSP-
599zx may not allow you to hear your sidetone.
When operating in data mode you will also need the PTT output connected
to your rig to allow the RTTY modem to trigger the transmit function on
your rig. You can program the Push-To-Talk (PTT) Inputs to electronically
bypass or mute the DSP-599zx in Data mode. Some operators like the output
muted in data mode and some prefer to pass the output through. Within the
data mode setup section of Setup the output is muted or not. Turn to page 6-
56 for the Setup - Data procedure. Factory default setting is mute for data.
External contact closures operate the PTT Input circuits. No external power
is required. Connect the return (shield) sides of the PTT Input jacks to the
DSP-599zx circuit and chassis ground.
PTT
I/O
Data
I/O
Channel A
Input
Channel B
Input
DB-9
Connector
DIN
Connectors
Speaker A
Headphones A
Line Out A
599-065
Line Out B
Headphones B
Speaker B
Timewave DSP 599zx