[aprssig] Amount of "padding" before and after data at 1200 baud?

John D. Hays john at hays.org
Fri Jul 21 11:55:39 CDT 2017


TXDelay is radio (model) specific -- based on the transmitter rise time.

On Fri, Jul 21, 2017 at 8:44 AM, Alan <wa4sca at gmail.com> wrote:

> In adjusting the TXDelay and TXTail parameters, is there a recommended
> number of ms before and after the data that you want actually transmitted?
> With conventional rigs, it is relatively simple to take a guess, and tweak
> it slightly until it is reliable.
>
> In working with DSP rigs, not only is the internal latency significant,
> but in some cases not entirely reproducible.  That is, you can send a
> series of beacons, and the timing will vary from one to the next.  I can
> look at the actual output, and would like to know what the minimum
> recommended times are so that I can insure that without just brute forcing
> long unneeded transmission times.
>
> 73s,
>
> Alan
> WA4SCA
>
>
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-- 

------------------------------
John D. Hays
Edmonds, WA
K7VE

   <http://k7ve.org/blog>  <http://twitter.com/#!/john_hays>
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