Specifications

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APPENDIX E • SERIAL COMMANDS
153
Signal Generator
DESCRIPTION:
This command selects/reports of the signal generator activation.
BINARY FORM DETAILS
COMMAND FORM: <Header> <Argument 1> <Argument 2> <Argument 3>
COMMAND ID: 52
ARGUMENT SIZE: 3 words
ARGUMENT FORM:
Name: Channel Group Type Amplitude Frequency
Size 8 bits 8 bits 16 bits 32 bits 32 bits
Type Unsigned Integer Unsigned Intgr Unsigned Intgr Signed Float Unsigned Float
Range See Group and Chnnls 1, 3, 7 0-3 -60 to +20 Type Range
(Table 1, page 93) (I, M, L) 1-2 0
3 20-20,000
Unit N/A N/A N/A dB Hz
RETURN VALUES:
Unit always returns the last signal generator activation in the same form as above.
TEXT FORM DETAILS
COMMAND FORM
<DEVICE> SIGGEN <Channel> <Group> [Type Amplitude Frequency]
Where:
<DEVICE>: See General Text command form Description
SIGGEN Text Command
Channel Null to return current setting; See Group and Channels (Table 1, page 93)
Group ‘I’, ‘M’, ‘L'
Type
0 Turn signal generator off
1 select pink noise generator
2 select white noise generator
3 select tone generator
Amplitude
-60 to +20 amplitude in dB; NULL for type 0
Frequency
20 to 20,000 frequency in Hz (only needed when using tone generation)
RETURN VALUES
The command will return the updated condition of the last signal generator activation in the same format as the
command.
If Command Returns
Signal Gen is Pink noise for microphone channel 1 with level of 20dB DEVICE SIGGEN 1 M 1 20