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Exalted Wombat

Joined: 06/02/10
Posts: 4197

Energy saving bulbs and radio mics new

#901385 - 16/03/11 01:44 PM

Dressing-room bulbs have just been replaced by energy-saving ones. There's evidence that they may be radiating something the radio mics don't like. It doesn't reach the stage, there's no practical problem. Unless some bright spark decides to go all green with the decorative bulbs on stage! Anyone else come across this?

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damoore

Joined: 05/07/09
Posts: 325
Loc: New Hampshire

Re: Energy saving bulbs and radio mics new

[Re: Exalted Wombat]
#901395 - 16/03/11 02:32 PM

Quick search for Energy Saving Bulbs and RFI brought up this:

http://lists.contesting.com/_rfi/2006-12/msg00003.html

In flourescent lamps, the ballasts can cause RFI. See, for example http://lists.contesting.com/_rfi/2005-09/msg00058.html.

So I guess the answer is, yes, this can be a problem.

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TSH-Tim

Joined: 21/02/11
Posts: 816
Loc: Guildford

Re: Energy saving bulbs and radio mics new

[Re: Exalted Wombat]
#901409 - 16/03/11 03:21 PM

This is news to me... i cant see why your going to have tonnes of problems here.

--------------------
PA Hire Surrey
Lighting Hire Surrey

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seablade

Joined: 21/11/04
Posts: 3768

Re: Energy saving bulbs and radio mics new

[Re: TSH-Tim]
#901422 - 16/03/11 04:22 PM

Quote TSH-Tim:

This is news to me... i cant see why your going to have tonnes of problems here.

Yes fluorescents do put out RFI, but how much of a problem it is is debatable. If you are having a problem, temporarily replace them with the incandescents. See if the problem went away. If it did, then you have your answer.

However it is very unlikely you would have problems outside of that room as the amount of RFI is only enough to really cause problems with nearby transmissions (Wired and wireless) and as long as your receivers and antennas aren't in your dressing rooms, you should be fine.

Seablade

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Steve Hill
member

Joined: 07/01/03
Posts: 13140
Loc: Oxfordshire

Re: Energy saving bulbs and radio mics [Re: Exalted Wombat]
#901476 - 16/03/11 08:57 PM

Agreed - it's a problem. To the extent I won't have fluorescent energy saving bulbs in the studio. The effect is very short-range, but I wouldn't want to record an electric guitar in the same room as one of these things.

LED bulbs are OK though. (And far more expensive at the moment).

--------------------
Dynamite with a laser beam...

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