On 12/11/12 at 9:14 PM, k6limae...@gmail.com (Rick Prather) wrote:
Not sure why you feel the need for the SL [SignaLink] with your K3 but that's
up to you.
The MacBook Air has only a single audio port. The Apple web site
is a bit light on technical information (no surprise there), but
it says the MacBook Air includes:
Headphone port
Support for Apple iPhone headset with remote and microphone
If indeed it will take a 4 conductor plug (with a tip, 2 rings,
and a sleeve), then it may be possible to skip the SignaLink by
wiring a plug correctly. A friend who has done so for connecting
a iPhone to a wired phone system says that the resistance value
of the microphone connection is what is used to determine
whether the plug is a 3 conductor stereo plug or a 4 conductor
stereo + microphone plug.
In any case, having the SignaLink lets you use the cocoaModem
"monitor" feature to listen to the incoming signal. Not a great
advantage with the K3 since you can just turn up the audio
volume on the K3, but sometimes useful to hear what the computer hears.
Cheers - Bill, AE6JV
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