[R-390] Never heard the real R-390

[Roy Morgan]

At 08:52 AM 7/26/2004 -0500, you wrote:
>I suspect that when the RX is tweaked to meet the book specs, which
>include 1% THD if I recall correctly, the sound from the Diode Load
>terminals is at least a bit better than "not impressive".

Mil Spec 13947B says:

"3.13.41 Audio harmonic distortion.- Harmonic distortion shall be no greater
than 1- percent with 500 milliwatts outputs at the local audio channel, and no
greater than 6 percent at the line audio channel. (See 4.41)"

"4.41 Audio harmonic distortion.- Audio harmonic distortion shall be
measured with a Distortion Analyzer Hewlett-Packard Company Type 330-B, or
equal, to determine compliance with the requirements of 3.13.41. Signal input
shall be 1000 microvolts. The receiver audio outputs shall be loaded with a
non-inductive resistance of 600 ohms, one Watt rating or larger."

Roy

- Roy Morgan, K1LKY since 1959 - Keep 'em Glowing!
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