[amsat-bb] PSAT2 DTMF

Robert Bruninga bruninga at usna.edu
Sun Jul 28 13:50:43 UTC 2019


I am amazed!
I never expected DTMF to work at FAST speed like you tested with FT400 and
the other radio?
Is it reliable?  I always tested at slow speed.  Did not work fast for me.

And of course, radio has to be in narroband FM.

Fast might work if there are no double digits.  Double digits are the
hardest thing to detect in a DTMF string.

bob, WB4APR


On Sun, Jul 28, 2019 at 7:48 AM PY5LF via AMSAT-BB <amsat-bb at amsat.org>
wrote:

> Hi
> I saw 2 new call sign on the DTMF bulletin ;
> *PSAT2-1*>APOFF,ARISS,qAR,EA8BQD::BLNc-DTMF:i|PY5LF0,PY5LF8,P5SAT
> ,WY5LF0,PU5NOC,PY5LAF,P, <https://www.aprsdirect.com/details/main/sid/885
> >,
> Not sure if its correct , P5SAT (North Korea ? 😂) and WY5LF.
> I`ve made an short video explaining how to send the DTMF codes using simple
> antenna (GP9);
> https://youtu.be/0DQTbjiscP4
> Hope it encourage you to try.
> 73
>
> --
> *PY5LF *
> *Luciano Fabricio*
> *www.falautomation.com.br <http://www.falautomation.com.br>*
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