[Elecraft] K2-Bias Resistor When Using Mic Connector Pin 1 for Soundcard Input

2023-04-02 Thread Jim Campbell
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Re: [Elecraft] K2-Bias Resistor When Using Mic Connector Pin 1 for Soundcard Input

2023-04-02 Thread W3FPR
Jim, If I understand your question in the subject line (but no text to detail your question) - then the answer is that it all depends on the soundcard.  If it has a DC blocking capacitor in the input, then all is well with the bias resistor in place.  If there is no DC blocking at the soundca

Re: [Elecraft] K2-Bias Resistor When Using Mic Connector Pin 1 for Soundcard Input

2023-04-03 Thread Peter Eijlander (PA0PJE)
Don (and Jim for info), There could have been another reason for not showing any text in the text-part if the message. Jim might use a device like a "smart"phone that sends HTML-only mail. This mailman server is set to suppress and delete any HTML markup and attachments in received mails bef

Re: [Elecraft] K2-Bias Resistor When Using Mic Connector Pin 1 for Soundcard Input

2023-04-03 Thread Jim Campbell
Don, Thanks very much for your response. I made the mistake of sending my email in MIME format. I'm impressed that you were able to intuit my question from the subject! The DigiRig schematic shows a blocking capacitor of 10 uF, so it looks like I'm OK My original email body was: "’I'd like to con

Re: [Elecraft] K2-Bias Resistor When Using Mic Connector Pin 1 for Soundcard Input

2023-04-08 Thread Geert Jan de Groot
On 07/04/2023 23:48, elecraft-requ...@mailman.qth.net wrote: I'd like to connect a sound card output to a K2 mic connection. Does this bias resistor need to be removed when I connect the sound card output? Electret microphones, like the MH2, MH3, MH4 require a bias voltage to function. On the