Over 10dB noise reduction at 300MHz

I can barely hear up to 96 MHz, so I limit my radio hearing to the low end of the FM band :^)

On a sunny day (Sat, 24 Nov 2007 10:14:19 -0800 (PST)) it happened Winfield Hill wrote in :

:-)

Does mHz make more sense, or what is your point?

I bet thay are using these Linear Technology parts available from Newark ( Grin ... )

LT1112ACN8#PBF - LINEAR TECHNOLOGY - Operational Amplifier IC

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Image is for illustrative purposes only. Please refer to product description Manufacturer: LINEAR TECHNOLOGY

Newark Part Number: 57M1727

Manufacturer Part No: LT1112ACN8#PBF

RoHS Compliance : Yes

Description a.. Operational Amplifier IC b.. Number of Amplifiers:2 c.. Bandwidth Max:750GHz d.. Slew Rate:0.3V/us e.. Package/Case:8-PDIP f.. Amplifier Type:Low Power Precision g.. Leaded Process Compatible:Yes h.. Offset Voltage:20V i.. Operating Temp. Max:85 C RoHS Compliant: Yes

The pharmaceutical outfits probably have a pill for that. Of course, it would need to be used in conjunction with oxygen-free, audio enhanced, gold plated, dynamicly balanced, impedance matched monster cables.

Ed

Oh dear.

No, three hundred millihertz would also be somewhat out of the range of human hearing.

Bob

$20 for a pair of filters with only 10dB attenuation at 300MHz? Good God man, you can get ferrite filters that'll do far better than that for fifty cents each!

Not to mention that tin foil hats will do far better, for much cheaper.

Cheers,

Phil Hobbs

Winfield Hill hath wroth:

Nice. It probably cancels rock, grunge, techno, punk, rap, trance, disco, talk radio, and perhaps even commercials. Only 10dB reduction in these offensive noises isn't great, but it's a good start.

Winfield snipped-for-privacy@yahoo.com posted to sci.electronics.design:

But you are not a platinum plated audiophool.