So, I've been dealing with QRM so that I can actually hear FreeDV well enough to test the software I'm working on. I walked around the house yesterday with the KX3 and the Alex Loop and convinced myself that the issues were in my own house, but didn't really find all of them.
I got an MFJ-856 ?(http://www.mfjenterprises.com/Product.php?productid=MFJ-856) today and started sweeping around. Many of you would homebrew such a thing, but at the moment my time is more valuable than what I paid for it. FYI, it works really well and I would recommend it to anyone else who is dealing with such issues. It works at 135 MHz which is often quiet (I do hear pilots once in a while) and surprisingly the noise sources get that high frequency in their near field. I really quickly found the bad florescent lamp, the laptop power supply, and the battery chargers. Also noticed that my entire wired network has a continuous hiss coming off it even though all of the wires are shielded. I'll work on its grounds and adding chokes, etc. I'll use the AM radio with loopstick and make sure I'm getting the entire low end, too. Thanks Bruce ------------------------------------------------------------------------------ WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991&iu=/4140/ostg.clktrk _______________________________________________ Freetel-codec2 mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freetel-codec2
