Andy's Blog

Browse by Tags

• antenna
• buzz
• cable
• hum
• video

• Hum and Buzz – Part IV

  Antenna/Cable TV Ground loops. OK so you’ve narrowed your ground loop issue down to your cable connection or your rooftop antenna. You’re not alone; this is one of the more common ground loop issues, but I don’t necessarily want to want... Posted Dec 14 2007, 02:28 PM by Andy W with | with no comments Filed under: ground, hum, buzz, video, cable, antenna

• Hum and Buzz – Part III

  Ground Loops 101 Let’s start our discussion of ground loops with two pieces of chassis grounded equipment. Class II equipment can exhibit hum and buzz too, but the mechanism is a little different, but we’ll talk about that in another installment... Posted Nov 30 2007, 05:17 PM by Andy W with | with no comments Filed under: ground, hum, buzz

• Hum and Buzz - Part II

  Electrical equipment is grounded for safety reasons. Grounding can also help prevent RF interference First… let’s get some agreement on nomenclature… since I’m writing, I get to pick. [:neener:] There are many different ways to refer to “ground” and much... Posted Nov 16 2007, 01:57 PM by Andy W with | with 1 comment(s) Filed under: ground, hum

• Hum and Buzz – Part I

  It is a fact of life. Ground current happens. And where it flows makes all the difference. In a perfect world there would be no ground current on the AC power line. AC would enter on the LINE, and return on the NEUTRAL, and the earth ground would just... Posted Nov 09 2007, 04:12 PM by Andy W with | with 5 comment(s) Filed under: ground, hum