HFU HF Underground
Technical Topics => Equipment => Topic started by: SorensenDK on August 01, 2019, 0716 UTC
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Hi here :).
Often I find 'unofficial stations' having problems with their sidebands, +/- 10 kHz or more (no it not giving HI-FI for the listeners on AM ;D).
Here is a suggestion to solve the problem:
The diagram shows our old homemade AF filter, which has now been replaced by a 'SW200' audio processor and +/- 5 kHz.
http://ozviola.dk/SideBaand2.png (http://ozviola.dk/SideBaand2.png)
ozviola.dk/6kHzfilter.png (http://ozviola.dk/6kHzfilter.png)
73, Jan :).