Tag Archives: Tecsun PL-880 FM De-Emphasis Hidden Feature

Hidden feature: Adjusting the Tecsun PL-880 FM de-emphasis

Photo source: Tecsun PL-880 Yahoo Group

Photo source: Tecsun PL-880 Yahoo Group

There has been some confusion (mainly on my part) about the hidden feature behind button number 5.

Pressing and holding the number 5 will toggle the radio between 50 and 75 uS.

But what, exactly, is this function?

Thankfully, Eric Cottrell has the answer:

“The 50/75 uS setting is the FM De-emphasis. 75 uS in the US and 50 uS in Europe.”

Eric then pointed to a discussion about de-emphasis on DIY Audio’s website.

Many thanks, Eric, for clarifying this (and thanks to others SWLing Post readers who pointed this out in comments as well).

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