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SmartSDR 1.5.1 Flex Control Frequency Tuning Latency

N4FP
N4FP Member ✭✭
edited February 2019 in SmartSDR for Windows
Flex 6300, Windows 10 Pro 64-bit, 8 GB RAM, AMD Athlon X4 860K Quad Core Processor, 3.70 GHz.  After installing SSDR 1.5.1 several weeks ago, I have randomly, but too frequently, encountered a severe latency in frequency tuning with the Flexcontrol installed on physical COM6 when tuning in cw contests.  Virtual serial port pairs 4-14, 5-15 defined.  Running fully integrated N1MM Plus on COM4.  When I attempt to tune, frequency will freeze and stay hung for 2-3 seconds, then resume tuning okay.  I never experienced this on SSDR 1.50 and earlier.   

Comments

  • George KF2T
    George KF2T Member ✭✭✭
    edited February 2019
    Is it possible your display FPS got set higher than it used to be?
  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited March 2017
    A few things could be causing this.  Some Win10 drivers are not very mature and experience performance issues.  I would check to see if your motherboard chipset drivers have been updated.

    Also, the USB controllers are managed by the system BIOS.  You may want to see if that has been updated recently too.

    The performance of the FlexControl can be effected by other devices connected to the same controller, so plugging it into a different USB port may help.

    And last but not least, this could be a buffering issue. Refer to this article to change your FIFO buffering settings to see if that makes a difference.  https://helpdesk.flexradio.com/hc/en-us/articles/202118458-How-to-Mitigate-FlexControl-Latency


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