[Ham-Mac] Digital Audio Interface at AA5VU

[gbeske Beske, Gerald & Barbara]

Hey,  I never could get a connection to Echolink to work with my Mac. As a result I bought a Toshiba laptop to use Echolink.  Could you please take me off your e mail list.  KB0YGQ    gbeske at newulmtel.net


---------- Original Message ----------------------------------
From: Richard Kriss <aa5vu at qsl.net>
Reply-To: Mac enthusiasts involved in amateur radio applications <ham-mac at mailman.qth.net>
Date:  Wed, 14 Jul 2004 10:10:11 -0500

>Sometimes a picture is better than words; however, this reflector will
>bounce messages with pictures in html format and strip all attachments.
>
>Some have have asked about my weird RTTY interface so I put together a
>picture of the setup. I just uploaded the pictrue to my web page and you can
>view it there or send me an email and I will reply with the small (68K .jpg)
>attachment.
>
>The document is titled "Digital Audio Interface at AA5VU" and it shows the
>TS-570D(G) connected to a Macintosh G4 using OSX and the new cocoaModem
>software via the Griffin iMic and SignaLink SL-1+ adapters.  The reason for
>the non standard connections is results of a combinations of electronic
>weirdness (lower than expected TS-570 output, impedance mismatches and
>signal losses). The 'electronic weirdness' was the subject of another
>posting. The interface described in the picture works.
>
>One reason I selected the SignaLink SL-1+ Sound Card Radio Interface is life
>is too short too ever solder another Kenwood 13-Pin DIN plug and
>Tigertronics provided a cable with connectors on both ends.  The real reason
>is the very cool AutoPTT feature of the SL-1.  The iMic is a great USB
>adapter for people who want a better A to D converter or have a computer
>lacking built-in audio input.  I encountered an impedance mismatch with
>TS-570 and had to bypass it on the RX side. I use the iMic via the G4's USB
>port for the TX side. I selected this port over the headphone output jack
>because it mutes the G4's internal sound system
>
>Check it out..... there may be something of value for your setup. Each setup
>seems to be different. After trying many different combinations,  I finally
>found one that works.
>
>73 Dick, AA5VU
> http://www.qsl.net/aa5vu/digital-IO-aa5vu.jpg
>
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