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  Topic: Keyer Functionality Without Typing Letters (3 replies)
#1     Wed Oct 26, 2011 6:19 pm
KC0ZIX
Saint Louis, Missouri
 
Join Date: Oct 2011
Posts: 1
Subject: Keyer Functionality Without Typing Letters

Half the fun for me is tapping out the code, but my sound card does not have that input jack, only a microphone jack. It would be nice if the radio could use my keyboard as a keyer, with the option of doing straight key as well.
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#2     Thu Oct 27, 2011 2:03 pm
VE3EFC
 
Join Date: Aug 2006
Posts: 724
Subject:

http://www.qsonet.com/qbb/viewforum.php?f=10
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#3     Mon Feb 13, 2012 9:31 pm
KK4BDH
West Palm Beach, FL
 
Join Date: Oct 2011
Posts: 3
Subject: Connect a Code Oscillator to Your Mic or Aux-in Jack

Electronic keyers or code practice oscillators have a speaker or line out jack, now usually 3.5 mm stereo. Connect to the inputs on the computer and select the source with your sound card. Set mode to PTT-PL. Hit the red Transmit button on an unused frequency to hear your side tone. Adjust the Pitch on the transceiver and the speed on your keyer. Otherwise key the straight key or bug. Adjust the sound card level to s9 or 10 over to prevent over modulation. Then enjoy a CW contact on CQ100.
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#4     Tue Feb 14, 2012 9:42 pm
VE3EFC
 
Join Date: Aug 2006
Posts: 724
Subject:

When using the sound card Line-In for input, the mode can set to VOX, so the rig starts to transmit whenever you start keying.

The trouble with most CPO's is they have a very raspy square wave tone. I built my keyer to have a nice pure sine wave.

http://ve3efc.ca/keyer.html

73, Doug
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