What version of PowerSDR are you referring to? PWSDR v1.19.3 svn 3501

What Hardware platform are you using? Flex 3000

What Firewire driver are you using? (assuming a FLEX-x000) 3.5.0.7171

What firmware are you using? (assuming a FLEX-x000) 2004

Regards
Les VK2DSG



On 21/01/2010 6:15 PM, James Nelson wrote:
Hi Tim,

Thanks, here are my details... I just wanted to get the ball rolling on a known issue across many SVN's, Firmware & release dating back to pre-pal. We would like to re-visit the issue please.

What version of PowerSDR are you referring to?  SVN3501

What Hardware platform are you using? Flex5000A

What Firewire driver are you using? (assuming a FLEX-x000) 3.5.0.7171

What firmware are you using? (assuming a FLEX-x000)  2.0.0.3

This is my current status, Les will contact with his details.

73'

James

--- On *Thu, 21/1/10, Tim Ellison /<[email protected]>/* wrote:


    From: Tim Ellison <[email protected]>
    Subject: RE: [FlexEdge] ARQ mode Problems Winmor / RFSM etc
    To: "James Nelson" <[email protected]>, "flexedge"
    <[email protected]>
    Cc: "[email protected]" <[email protected]>
    Received: Thursday, 21 January, 2010, 5:43 PM

    What version of PowerSDR are you referring to?

    What Hardware platform are you using?

    What Firewire driver are you using? (assuming a FLEX-x000)

    What firmware are you using? (assuming a FLEX-x000)

    This information should always be included in a post like this
    because if it isn't there is no reference point to start with.



    -Tim

    -----Original Message-----
    From: [email protected]
    </mc/[email protected]>
    [mailto:[email protected]
    </mc/[email protected]>] On Behalf Of
    James Nelson
    Sent: Thursday, January 21, 2010 1:37 AM
    To: flexedge
    Cc: [email protected] </mc/[email protected]>
    Subject: [FlexEdge] ARQ mode Problems Winmor / RFSM etc

    Hi All,

    Recent excitment with the Winmor project has been the recent
    catayst for looking once again closely at latencies & syncing with
    data traffic and so whilst ruinning 2 gateways in our region full
    time with many beta testers watching connects from myself and
    others we have observed the following;

    When using SDR (like pactor) I have kept the buffers both in
    driver and DSP at 512. Usually the connects are 1st time however
    during the connection at a random time the ack frames become
    shortened or truncated hence the data frames are damaged and the
    connection is lost.

    What we have found using "hit and miss" experimentation is by
    restarting the Psdr console "off then on" for one second or more
    during the symptom described above, the synchronization for the
    PTT and Audio becomes re-aligned and consequently they renegotiate
    and the connection is saved. Should the power "off and on" remedy
    not be actioned completion of the transfer cannot be processed
    resulting in both stations simply calling it quits.

    Observations would indicate an audio truncation with the PTT
    timing. Having a VOX selection on the VAC in Digi U/L mode may
    create a workaround but a solution to the underlying PTT & Audio
    alignment problem would place our SDR's "up there" with the real
    time radios thwarting the SDR latency critics. With the help of
    Les Keppie VK2DSG we have been trying to solve the ARQ mystery.

    Any help here Gentlemen is very much appreciated.

    73'

    James. VK2JN. &. Les  VK2DSG



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