Connecting a Computer Headset to a FLEX-3000 & FLEX-1500

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Connecting a Computer Headset to a FLEX-3000 & FLEX-1500


Connecting a Computer Headset to a FLEX-3000 & FLEX-1500

  System Dependencies
  Minimum PowerSDR Version:     N/A  
  Applicable Hardware:     FLEX-3000 & FLEX-1500  

Content provided by: Butch, K8KO (submitted by Ernest,  W4EG)

It is possible to use wired computer type headsets with the FLEX-3000 and FLEX-1500 after a bit of modification. Computer headsets are inexpensive and will provide a good alternative to more expensive communications headsets. While some can be cheaper, the ones that are purchased for more than $20 USD usually have better performance and audio quality.

Computer head sets microphone elements require a bias voltage to operate. Fortunately the FLEX-3000 and FLEX-1500 microphone connector provides for this bias voltage, but it does require a small circuit to provide the proper filtering and voltage. Refer the the schematic below

 


For this project, I cut off the end of an Ethernet cable to mate with the F3K female RJ-45 mic connector. I then glued a 3mm female stereo connector to it. The two resistors and capacitor were then soldered in dead bug fashion. Not pretty, but it works.


The FLEX-3000 and FLEX-1500 mic connector does not have pins for audio output, but that is not a problem because most typical computer type come with separate mic and speaker plugs.

 



This KB article may reference additional files that are available on the FlexRadio Systems web site Downloads page. Please use the URL(s) below to download the referenced materials.

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Last Modified:Tuesday, April 6, 2010
Last Modified By: Administrator
Type: HOWTO
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