In Reply to: Quiet MPX decoder posted by openmind on April 19, 2012 at 10:49:41:
Hi All,
The hiss on KBAQ-FM really was driving me crazy. So, I built up a multiplex demodulator based on the LM-4500A and installed it into my aging Realistic STA-2000 receiver. This indeed takes care of much of the hiss problem. Next will be the installation of a better antenna system. I live in an apartment, so it can't be too large. But it really needs to be outside to work well.
I couldn't afford the nice board that Bob Fitz makes available (www.FMMPX.com) so I built it on a clad perf board from Radio Shack following the basic information on the National Semiconductor datasheet. It looks really home-brew but works and sounds great.
I hope that this helps someone get cleaner sound from their tuner or receiver.
Best regards,
Bruce Sherman
"bruceontheice"
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Follow Ups
- RE: Quiet MPX decoder - bruceontheice 17:33:18 06/10/12 (0)