H A R D W A R E I N S T A L L A T I O N C H A P T E R 1
The Flex-5000 Driver comes with a DPC latency checker to check the maximum latency incurred on
your system. To enable it click the DPC tab at the top right (Figure 15) and click Enable DPC Latency
Checker. For the result to be meaningful, you should run all applications you usually do while running
PowerSDR (email, digital mode software, logger, etc.) and let it run for at least 5 minutes. The checker
will show the maximum latency found during the test period and recommend an Operation Mode based
on the result. While it may some times recommend Normal Mode, we recommend to keep your
Operation Mode at Safe Mode 1 unless you experience latency issues. For further information go to the
FlexRadio Knowledge Center on our website and read the article How to Use the FlexRadio FireWire
Driver DPC Latency Checker to Determine Operating Mode (search for firewire card in our Knowledge
Center at http://kc.flex-radio.com/search.aspx).
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