| To: | tentec@contesting.com |
|---|---|
| Subject: | Re: [TenTec] Argonaut V-Jupiter-Signalink USB and Digital |
| From: | "Dr. Gerald N. Johnson" <geraldj@weather.net> |
| Reply-to: | geraldj@weather.net, Discussion of Ten-Tec Equipment <tentec@contesting.com> |
| Date: | Tue, 21 Dec 2010 10:47:51 -0600 |
| List-post: | <mailto:tentec@contesting.com> |
Then the simple series resistor goes up to 4.7 megohms. The stray
capacitance may give a high boost. Might be better to use two resistors,
say 4.7K shunt after 470K series, or 1k shunt after 100K series, or any
pair with that 1:100 ratio and total resistance over 47K.
73, Jerry, K0CQ On 12/21/2010 9:57 AM, James C. Owen, III wrote: Thanks to all that suggested a fix for my problem of overdrive. I see I made a typo in my original post. The input impedance is 47K ohm not 47 ohm. I'll make up a box with a resistor/resistors after Christmas and see if I can get it to work properly. Merry Christmas to all and a Happy New Year. 73 Jim K4CGY |
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