CW Interface Working

k4drq #18 It was the PC. I loaded the program on an old PII 233mhz, W95 system, and it came up working immediately. For those of you who encounter a problem like mine, and who might benefit from some voltage/current data, here is what I measured for my future reference: My TS-850 measures +7.4vdc with the key open. when keyed, the circuit draws 1.5ma from the ts-850. My cw interface requires 4.5vdc to drive the 2n2222 into enough condution to key the ts-850; at that point, the interface circuit draws 0.8ma from the keying source. I performed these tests using a variable DC supply for keying the cw interface. I put a scope on the interface input from the PC, and observed -10vdc unkeyed and +10vdc when keyed by the program on the old PC. Huel k4drq
Scott Davis All Messages By This Member #19 Hi Huel, I'm glad you got the CW interface working. ?Thanks for the good information! 73, Scott N3FJP Serving the Amateur Radio Community with general logging and contesting software since 1997. In a message dated 6/21/03 10:56:13 PM Eastern Daylight Time, k4drq@... writes: toggle quoted message Show quoted text It was the PC. I loaded the program on an old PII 233mhz, W95 system, and it came up working immediately. For those of you who encounter a problem like mine, and who might benefit from some voltage/current data, here is what I measured for my future reference: My TS-850 measures +7.4vdc with the key open. when keyed, the circuit draws 1.5ma from the ts-850. My cw interface requires 4.5vdc to drive the 2n2222 into enough condution to key the ts-850; at that point, the interface circuit draws 0.8ma from the keying source. I performed these tests using a variable DC supply for keying the cw interface. I put a scope on the interface input from the PC, and observed -10vdc unkeyed and +10vdc when keyed by the program on the old PC. Huel k4drq ?

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CW Interface Working