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| To: | [email protected] |
|---|---|
| Subject: | Re: LF: Question on JASON to transmitter interface??? |
| From: | "Alberto di Bene" <[email protected]> |
| Date: | Thu, 26 Sep 2002 14:00:49 +0200 |
| References: | <[email protected]> |
| Reply-to: | [email protected] |
| Sender: | <[email protected]> |
| User-agent: | Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.0.1) Gecko/20020823 Netscape/7.0 |
WE0H wrote: How does one connect the sound card to the transmitter and what kind of audio signal is present on the cable to the transceiver from the soundcard??? Mike,the output from the sound card is a sinusoidal signal at the so-called line level, usually a bit less than 1V pk-pk, and the frequency is that of the center frequency set in the options of the program (default 800 Hz) plus or minus the delta carrying the information. Max deviation is plus or minus 2 Hz. To feed it to a transceiver microphone input, you will need a passive attenuator (a couple of resistors), to bring it to the level required by the rig you are using. 73 Alberto I2PHD |
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