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  Topic: CW on CQ100 (1 replies)
#1     Sun Mar 08, 2009 3:34 pm
W2BLC
Altamont, NY
 
Join Date: Oct 2008
Posts: 92
Subject: CW on CQ100

I want to use a straight key. So the way I figure it, I can use a tone generator (http://www.morsex.com/misc/ttone.htm) sent into either a USB mic converter (http://www.antonline.com/p_ICUSBAUDIOB-NX_531075.htm) or into the analog line input on the computer's sound board.

Sounds simple - think it'll work?
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#2     Tue Aug 04, 2009 1:57 am
KB4T
Holly Hill, FL
 
Join Date: Aug 2007
Posts: 23
Subject: Yep!!! It'll work!!!

Hey Bill:

Occasionally, I must use a code practice oscillator instead of Dahdidah to send code on QSONET.

My kit includes the MFJ 554 ($90) Sine Wave Output Classroom Code Practice Oscillator, a Vibroplex Standard Original Bug, a Vibroplex Deluxe Straight Key and two cables. One cable has a 1/4 inch mono audio plug that goes to the key input of the CPO. The other end of that cable has 2 gator clips to connect to the keys.

The second cable is a length of RG-58 (it's what I had laying around) with an 1/8 inch mono plug on one end and a 1/8 stereo plug on the other. I opened the cable in the middle and wired a .1 microfarad low voltage cap in series with the center conductor for isolation and crude impedance matching. It works very well. Nice clean tone and no clicks, pops or buzzes.

I adjust the pitch to my liking on the CPO. The volume knob sets the level on the CQ100 transceiver. I monitor my transmit audio in the computer so I can hear what I'm sending.

The CQ100 is set for VOX operation mode with sensitivity set at 8 and Dwell set at 1 second. Works great!!!

It's not as nice as running Dahdidah but it works well and allows me to enjoy the CW experience on QSONET.

Good luck with your setup.

73,

Frank KB4T
Florida
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