Troubleshooting a Radio Interference Problem

I recently encountered a problem when using my Yaesu FT-950. Sometime during the CQ WW WPX Contest, I noticed an annoying tone (“a birdie”) in my receiver. I’ve had this radio for many years, used it quite a bit and this was the first time I encountered this problem. It struck me as very odd because it did not go away when I disconnected the antenna and it did not change frequency when I tuned around.

I immediately had visions of needing to tear the radio apart or send it back to Yaesu for repair. Instead, this happened…

When it comes to troubleshooting problems, it usually pays to fiddle around with it and see what happens.

The post Troubleshooting a Radio Interference Problem appeared first on The KØNR Radio Site.

Bob Witte, KØNR, is a regular contributor to and writes from Colorado, USA. Contact him at [email protected].

3 Responses to “Troubleshooting a Radio Interference Problem”

  • Larry Nixon VE7VJ:

    It is always best to check the simple things early on. I recall trouble shooting a ‘dead’ radio to find the power connection had been jostled loose. Wish I could say that was the first thing I checked 🙂

  • Mike VE9KK:

    Good morning Bob, very nice work and great video on the whole ordeal. It’s always a relief when you find the issue and it’s not a bust open the radio and start the fun task of trouble shooting the rig. Has the power supply always been this close to the rig? If, so I am of the understanding something is up with the switching power supply. Having said that your supply has served my hams without issues and has a great record for dependability. I have the Astron SS 30M and have had not an issue. The only thing I am not too crazy about is the supply has no Anderson power poles just binding posts.
    73 and stay safe Bob,

  • Dave n0wft:

    Hi I had the same power supply and had the same problem did this for a month or so and then just went out all together hope yours don’t do the same 73 Dave n0wft

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