Grounding Input, floating output?

[daArry]

***** about wha? lost me there...i got hot n cold swaped i know that much...

 

[AudioJohn]

A great deal of work has been carried out in Europe and the UK to enable compliance with the CE regulations.
Sometimes there is an apparent conflict between RF immunity - and the need to avoid the formation of hum, or ground loops. Often even electrical safety is compromised.......
Or is there a conflict?
The following 2 articles written by Tony Waldron from the Cadac mixer company (as used in many Theatre Musical productions) - will be of great interest:

http://www.compliance-club.com/archive/old_archive/020918.htm
http://www.compliance-club.com/archive/old_archive/021122.htm

 

[clintrubber]

That's thorough info !

Those Rane-pdfs are also informative, like #110:

http://www.rane.com/note110.html
http://www.rane.com/pdf/note110.pdf

and #151 etc:

http://www.rane.com/note151.html
http://www.rane.com/pdf/note151.pdf


Bye,

Peter

 

[Kev]

[quote author="cjenrick"]I mean do you follow certain rules like all mic level stuff is XLR, (obviously), and all line level stuff is 1/4 inch phone jacks? If so, how do you keep from grounding your 1/4 inch jacks? [/quote]

XL to XL always
Mic and line

BUT :shock: when I must .... :roll:
for 6.5 mm stuff I ALWAYS use the stereo version and then make my mind up on wiring to suit the occassion

this one pictured is unusual as it is tip and ring only
also come with a plastic nut and available as switched with PCB mount. That's what I usually get and one unit can be used in ALL situations.

and for RCA's
A panel of multiple RCA's

available as 2-way, 4-way, 6-way and 8-way panels


EVEN better are the units built into the usual XL chassis type mounting.
BUT I'm too tight to spend that much.

 

[CJ]

Thanks everybody!
:guinness:

 

[thermionic]

Thank-you for those links John :guinness: I'm still kicking myself for missing Tony Waldron's EMC lecture at the AES a few months ago, I have no excuses really... EMC is maybe not the most entertaining topic to spend an evening studying, but rather crucial in today's market.

Welcome to the Lab John! :guinness:

Justin

 

[Kev]

Speaking of RF and Audio ...
is anyone getting new rules with respect to safety and using radio mics and IEM with the general public and the talent.

different catagories with 40mW 80mW and 250mW etc .... ?

pregnancy and other brain factors ... :roll:

it's all getting too hard.

 

[CJ]

I've been using the 100 megawatt model for years and I havnt haddd any pa prortg poyerwgfpuio problems pijtgphpohuipfpoiprp!
:razz:

 

[Kev]

[quote author="cjenrick"]... pa prortg poyerwgfpuio problems
[/quote]

:green:

... and sometime you find yourself dancing around the kitchen when the microwave oven is on.