Acumen SDR2-USB manual Testing your configuration

Configuring the DataBridge SDR2-USB SDR2-USB Configuration Guide rev 1.0

feed is received by adding the line TimestampTrigger=10. The recorder will be “armed” to time stamp when a line feed is received, then insert a stamp when the next character is received— at the start of the next line.

It is common to encounter a data source that periodically outputs “bursts” of data with time gaps between the bursts. For example, a GPS receiver outputs a position report once/second, then sits idle between reports. For this scenario, it is convenient to configure the recorder to insert a time stamp after any gap in the data stream. To specify this behavior, add the line TimeStampTrigger=gap to the setup file.

Custom time/date stamp formats are also available and can include millisecond-precision stamping. See section 4.1.5 for more details on custom date/time stamps.

2.7 Testing your configuration

To test your configuration, use a null modem adapter or cable to connect a computer running terminal software (e.g. Windows HyperTerminal) to the SDR2-USB’s data port. Your computer then becomes a data source.

Press the Record button to enter record mode. The SDR2-USB’s record indicator will illuminate.

To ensure that recording is occurring, type several keystrokes on the terminal or use the software’s ASCII text upload feature to send a text file. The SDR2-USB’s data indicator should blink as you press keys, indicating data is being received. When finished, press the record button again to stop recording and inspect the file created on the USB storage device.

Note: The SDR2-USB will not echo data while it is being recorded, so you will not see characters appear on-screen as you type. You can enable your terminal software’s "local echo" or "full duplex" feature to view data as you send it.

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