First off, FYI, CPU load is really a poor metric of performance unless you are exceeding 65-70%. System latency is not directly correlated to CPU utilization.
Second, you are using a laptop, so you need to turn off the Wireless and Bluetooth transceivers, as they are incredible internal system latency generators. Now that the hardware stuff is out of the way, you can try setting the CW DSP RX buffer and audio buffer to a lower value and the USB Buffer settings to a more conservative value. Make small changes and notice the difference between the change. Also, if you have a low speed USB device on the same USB controller as the FLEX-1500, that will degrade the data throughput between the radio and the PC. Refer to this KB article on how to tell if the FLEX-1500 is on its own USB controller. http://kc.flexradio.com/KnowledgebaseArticle50459.aspx Also, if you are not doing so, you should be using PowerSDR 2.0.22 (you didn't include that critical bit of info in the problem description). -Tim -----Original Message----- From: Burt [mailto:[email protected]] Sent: Sunday, May 15, 2011 4:57 PM To: [email protected]; Tim Ellison Subject: Flex 1500 CW Problems I am running a Flex 1500 on a HP g7-1070 laptop, Win7, with the lastest PowerSDR software. When I try CW I get a delay in the monitor when using a hand key making it impossiable to send clearly. When using the CW typing I get errors in sending manual alhough the presets work better. CPU load is less than 20% Burt _______________________________________________ FlexRadio Systems Mailing List [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
