[BC] Audio "proofs"

[Ron Youvan]

RichardBJohnson at comcast.net wrote:

> I heard that before the place was closed, they went to actual frequency counters and a "Panadaptor" receiver display, but the same basic idea of synchronizing a local signal generator to your carrier was used even then.

   Now, a spectrum analyzer with a GPS frequency standard (and a "counter" mode)
can measure any radio or TV station's carrier with virtually no error. (TV = pilot)

-- 
Ron KA4INM