[Ham-Mac] PSK - Problems with fidigi and signalink USB

[Richard Hemingway]

Hi Dick,

Thanks for the information I will let  you know. My best to you my 
friend and to your family.

73,

Dick, N5XRD


>
>Sounds like weak or marginal audio drive level from the Mac Pro to 
>the IC-7410 to
>me. The blinking LED you mentioned is clue that the audio input to 
>the SignalLink
>may be too low to properly key the Auto-PTT circuit in the SL to 
>drive the rig.
>
>Try the following:
>
>- Have Icom's S-Meter set to display ALC
>
>- Have the SignaLink USB's TX control set to mid way
>
>- Open the OS X System Preferences/Sound/Output and select the USB Audio CODED
>and set Output volume level slider to about 50%.
>
>- Open the fldigi Configure/Sound Card/Audio/TX Level and set the 
>slider to -0 db. The
>reason for setting it to zero is you are using a SiganLink that has 
>a TX control and you
>do not need both.
>
>While transmitting into a dummy load, adjust (balance) the OS X 
>Output volume slider
>and the SignaLink's TX knob until you get the desired power with no 
>ALC showing on the
>meter.
>
>Once you have the audio drive level to the rig adjusted, be sure you 
>go back to the OS X
>Sound control panel and select Internal Speakers to prevent the 
>transmission of OSX
>system beeps.
>
>I don't understand why you still using the SignaLink USB with the 
>Icom IC-7410?  The
>IC-7410 supports a direct USB connection for both audio and rig 
>control. Fldigi has a TX
>Attenuator to help you balance the output to the rig.  Once you make 
>the initial adjustment,
>you can make fine tuning ALC adjustments on-the-fly using the the 
>fldigi keyboard shortcuts
>[Cmd - and Cmd =].
>
>If you want to switch back and forth between fldigi and cocoaModem, 
>you may have to
>adjust the OS X Sound Output volume after the switch. 
>
>Good luck with the setup
>
>73 Dick AA5VU
>
>
>
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