beat switch on unisef sl500sz

[MaikL Knight]

hey guys,i got this unisef sl 5000 sz.
does anyone of you know what the 'beat' switch on the back of that boombox is for? there is nothing happening when i switch it from 1 to 2 or 3...

maybe one of you know where to get a manual for this? can'T find any...

thanks
maik

 

[Fatdog]

The following is taken from old posts at S2G:

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The frequency of the bias signal applied to the tape during recording of AM broadcasts interferes with the received signal and causes noise and the beat cut switch can help reduce the interference..

However, it's not just for recording, if two AM (MW) stations are on the same frequency and causing that 'whistling' sound, the switch can often cancel it out or at least reduce it.

Most boombox models offer at least some form of beat cancel, (with the exception of the most basic), and many offer two or three position switches for this purpose.

BEAT CUT A.K.A. LIST

1. BC Beat Cancel
2. BC Beat Cut
3. Beat Program (Position 1, 2)
4. BFC Beat Frequency Cancel
5. BFO Beat Frequency Oscillator
6. OSC Oscillator Control
7. RIF Radio Interference Filter
8. BP Beat Proof Function

 

[MaikL Knight]

thanks alot

 

[Fatdog]

Cool avatar!!

 

[monchito]

whenever you use am which is where it is used mostly to cancel that annoying beat noise in the background especialy when you have a very weak station