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Deemphasis: Surplus button?

https://www.sdrplay.com/community/viewtopic.php?f=11&t=1546

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Deemphasis: Surplus button?

Posted: Tue Dec 13, 2016 12:44 pm
by 13dka
Could somebody please explain why there's an "OFF" selection for FM deemphasis, when the "DEEM" button is a toggle? I'd deem one of the two kind of redundant? :mrgreen:

We could start a poll, what other function buried in the menus could be the heir of that precious window real estate! :)

Re: Deemphasis: Surplus button?

Posted: Tue Dec 13, 2016 8:21 pm
by PG3
The "50uS", "75uS" and "OFF" are for broadcast WFM and SWFM. The "DEEM" is a toggle for all other FM modes.

Re: Deemphasis: Surplus button?

Posted: Tue Dec 13, 2016 10:39 pm
by 13dka
Ah the light came on :idea: thanks! I (obviously) wasn't aware that NBFM uses emphasis too and just read up a bit on the topic, which also gave me at least one idea why you can turn that off in first place. Learned something today, thank you!
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