Re: Max input level of a PC soundcard?



john jardine wrote:

"Eeyore" wrote
Joerg wrote:

However, nothing beats the simplicity of a soundcard. Best of all, if
you take the laptop along anyway it occupies zero space because it is
already built-in.

It works nicely for spectrum analysis. The weakest link: Those dreaded
3.5mm connectors. Utter junk. Crackle, jitter, crackle. And on my recent
laptop they positioned them right under the touchpad. What were they
thinking?

They are truly shockingly bad. Crazy since a 1/4" jack would happily fit
in almost every case.


Bugger!. For development work had standardised on 3.5mm stereo jacks. With
50ohm coax they're good to 500MHz and a damn sight easier to wire, cheaper
and smaller than BNCs. So cheap they can be thrown away after use. And what
better way of getting +V 0V -V into a steel can?.

Interesting.

The biggest problem with 3.5mm jacks I find is that the connention is
unreliable. Twist the connector or move the lead and the signal will usually
crackle.

Graham

.

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