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DMX Output Frequency

Was Teching my FB4's internal DP and four dmx ports before taking it out on a job and noticed that even though the H4 software allows for you to increase DMX Refresh Rate to an upward number of 44hz, that the maximum actual DMX RR is limited to 29hz.

Is this by design?

Are we limited to 29hz on all internal DP's?

Are all of the External DP's limited to the same RR?

Can we get 44hz out of artnet and a 3rd party node?

Don't have a node or an external DP to test as I'm at home right now..

Would appreciate a reply from HES.

JB
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  • 0
    Thanks Mark, I am aware of the max Refresh Rate capable on Current Ansi DMX 512-A with a full line...

    I am not asking for higher than 44hz, just 44hz as I believe it is one of the items in the standards of the current 2008 Ansi DMX512-A.

    Anyway.. On High speed playback from a highspeed camera we are seeing color stepping on LED's in a Hue/Sat chase/effect that is directly associated with the DMX Refresh Rate and we know that because we have done tests at different RR's within the range that the H4 can output. We stopped seeing a difference from 30hz to 44hz, which prompted me to put a Swisson on the H4 and that is where I found out that the max RR of the H4 is 29hz even though the DP setting are at 44hz.

    JB
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  • 0
    Thanks Mark, I am aware of the max Refresh Rate capable on Current Ansi DMX 512-A with a full line...

    I am not asking for higher than 44hz, just 44hz as I believe it is one of the items in the standards of the current 2008 Ansi DMX512-A.

    Anyway.. On High speed playback from a highspeed camera we are seeing color stepping on LED's in a Hue/Sat chase/effect that is directly associated with the DMX Refresh Rate and we know that because we have done tests at different RR's within the range that the H4 can output. We stopped seeing a difference from 30hz to 44hz, which prompted me to put a Swisson on the H4 and that is where I found out that the max RR of the H4 is 29hz even though the DP setting are at 44hz.

    JB
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