PSK31 with J720
Jonathan <[email protected]> Mon, 12 Nov 2007 21:17:23 -0800 (PST)
| Newsgroups | gmane.comp.handhelds.linux.jornada |
|---|---|
| Message-ID | <[email protected]> |
--===============0844975836== Content-Type: multipart/alternative; boundary="0-1647271800-1194931043=:88348" --0-1647271800-1194931043=:88348 Content-Type: text/plain; charset=us-ascii 3. Re: External Mic/Line In (Jacek Lipkowski) Date: Mon, 12 Nov 2007 09:38:35 +0100 (CET) To: Jonathan <[email protected]> Cc: [email protected] On Sun, 11 Nov 2007, Jonathan wrote: >> Did anyone have any luck hacking a line in/mic in jack for the J7XX? I >> have been told, by the maker of some PSK31 software that it's easily >>possible. I suppose a simple line level attenuator would do the trick. >the biggest problem would be finding space for an additional connector inside >the jornada. after that - just wire the jack, so that the >microphone is connected when there is no jack inside. the level attenuator >and a DC blocking capacitor can be external to the jornada in the cable >(inside some heat-shrink tubing). The biggest problem for me is not the physical constraints of implementing a female jack, or even bare leads coming from the JXXX. Details of the 'level attenuator' and 'DC blocking capacitor' are needed here at the shack of 7J1AWL. Could you be more detailed? Thank you very much for any information. Jonathan --0-1647271800-1194931043=:88348 Content-Type: text/html; charset=us-ascii <html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:arial,helvetica,sans-serif;font-size:12pt">3. Re: External Mic/Line In (Jacek Lipkowski)<br><div style="font-family: arial,helvetica,sans-serif; font-size: 12pt;"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;">Date: Mon, 12 Nov 2007 09:38:35 +0100 (CET)<br>To: Jonathan <<a ymailto="mailto:[email protected]" href="mailto:[email protected]">[email protected]</a>><br>Cc: <a ymailto="mailto:[email protected]" href="mailto:[email protected]">[email protected]</a><br><br>On Sun, 11 Nov 2007, Jonathan wrote:<br><br>>> Did anyone have any luck hacking a line in/mic in jack for the J7XX? I<br>>> have been told, by the maker of some PSK31 software that it's easily<br>>>possible. I suppose a simple line level attenuator would do the trick.<br><br>>the biggest problem would be finding space for an additional connector inside<br>>the jornada. after that - just wire the jack, so that the<br>>microphone is connected when there is no jack inside. the level attenuator<br>>and a DC blocking capacitor can be external to the jornada in the cable<br>>(inside some heat-shrink tubing).<br><br>The biggest problem for me is not the physical constraints of implementing a female jack, or even bare leads coming from the JXXX.<br>Details of the 'level attenuator' and 'DC blocking capacitor' are needed here at the shack of 7J1AWL.<br>Could you be more detailed?<br>Thank you very much for any information.<br>Jonathan<br><br><br><br></div><br></div></div></body></html> --0-1647271800-1194931043=:88348-- --===============0844975836== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ jornada mailing list [email protected] https://handhelds.org/mailman/listinfo/jornada --===============0844975836==--