Provided you have an NTSC-compatible TV you can build yourself a really inexpensive spectrum analyzer. From there you just need one trivial piece of hardware to complete this build. [Bruce Land] has ...

I'm Matt Holzman with The Business Brief, a guide to what's happening in and around the business. I have a 42-inch flat-screen TV, but for reasons that I'd prefer not to go into here, I do not have ...