View Full Version : FM De-Emphasis
11-14-2005, 02:21 PM
What is that?
I received a vintage s/s analog tuner in the mail today, and it has a switch on the back labeled: FM De-Emphasis 25us/75us. Thats not exactly what it says...the u has a tail, I'm sure someone knows what I mean.
Anyway what does it do? :blink:
11-14-2005, 02:41 PM
i think that would be for a diffrent radio zone
puts it in between your bands for peoplez like me
do america and canada use
the same system?
11-14-2005, 02:49 PM
ummm.., Huh? :blink:
11-14-2005, 03:25 PM
The normal position has a normal response(filter), with the higher de-emphasis(less filtering on HF section) you could run it through a Dolby noise reduction unit if desired.
11-14-2005, 03:27 PM
The funny looking "u" is abreviation for "micro" as in micro seconds if I recall correctly.
11-14-2005, 03:32 PM
that was my first thought u is for micro seconds!
but i do remember pulling apart many radio`s in my youth and some do have a switch like that on the inside or back to change zones if you take it to a diffrent country
easy way to tell put it on a station and flick the switch
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