28 December 06

Difficult Connection

My efforts at receiving digital keyboarding modes such as PSK31 have hit a technical snag in that far too much noise from the computer is propagating back into the receiver along the audio cable that I use to connect the two. Yesterday I picked up a snap-on ferrite choke from Radio Shack to try to alleviate the noise problem, but that didn’t help, so I returned it. The next step is to try putting in a 1:1 isolation transformer into the cable somewhere between the computer and the radio, but a) generally useless Radio Shack didn’t seem to have that part in the store today though it shows up on their website and b) I would actually have to do some real wiring — scary! So I’m stymied.

Posted by at 07:48 PM in Radio | Link |

  1. “a snap-on ferrite choke”

    Numenius, my dear, that is seriously kinky.

    I do have a question: I believe I saw a Garmin GPS on your counter. What model is it, where did you get it, and how well does it perform for your purposes?

    (Answer all these and a duck will descend from the ceiling and give you a cigar.)

    Thanks, and happy New Year!


    — Ron Sullivan    29. December 2006, 09:29    Link

  2. The GPS is a Garmin GPSMap 60CSX. I’ve had it less than a month — it’s a replacement for my old eMap that vanished on my trip to Europe. I purchased it from GPS City (www.gpscity.com). So far it does everything I might want it to do.


    — Numenius    29. December 2006, 21:11    Link

  3. Thank you!

    Now, where was I? (blink)


    — Ron Sullivan    30. December 2006, 07:58    Link

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