SAM Mode ?

[Robert11]

Hello,

Might someone give me a few hints on when and where the "SAM" mode is (best) utilized ?

And, how to ?

Thanks,
Bob

[PD3LK]

AM sounds flat, SAM sounds fuller with more dynamic. The difference is best noticable with music.

[Max]

Bob

See here and skip to Page 4 of the PDF (marked Page 12 on the print) "Why Synchronous Detection":

https://swling.com/blog/wp-content/uplo ... onarrl.pdf

Best

Max

[pauldbnut]

I've never understood the bad press AM (envelope) detection gets.
Apart from SAM's locked oscillator and improved response to selective fading, it doesn't have a significant intrinsic advantage over the envelope method.
Most of the difference arises from using "bargain basement" envelope detector circuitry.
See Approaches to Wideband and High Fidelity AM/MW Broadcast Band Reception by Felix Scerri VK4FUQ for an example of how to do it properly.