[hpsdr] Hermes - PTT and ssb latency

[Barry N1EU]

Okay, I just found the "Enable PTT Delay" control in PowerSDR (duh).

sorry for the bandwidth but perhaps other dummies can learn something

73, Barry N1EU


On Mon, Oct 28, 2013 at 8:22 AM, Barry N1EU <n1eu.barry at gmail.com> wrote:

> After participating in the CQ WW SSB contest this weekend with a Hermes
> based SDR that has only recently come into the shack, I now realize the end
> of every xmsn of mine was clipped off.  When I released PTT, the audio
> stream hadn't yet completed due to latency (duh).  I received a comment to
> this effect during the contest and when I review a few of the soundclips I
> recorded, it's painfully evident.
>
> Assuming the latency is inherent in the Hermes architecture, I would think
> there needs to be an option in the Hermes firmware to delay the break (tail
> end or release) of PTT.  The option could be enabled by PowerSDR, as well
> as setting the amount of delay either manually or automatically by internal
> latency calculation.
>
> 73, Barry N1EU
>
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