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From: "James Moritz" <james.moritz@btopenworld.com>
To: <rsgb_lf_group@blacksheep.org>
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Date: Wed, 9 Feb 2011 18:52:15 -0000
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Subject: LF: Re: OT (a bit): Tinnitus and 9kHz broadcast intermod?
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Dear Roger, LF Group,

I do actually experience tinnitus of this sort - I find it quite hard to 
compare it with, say, a tone from a signal generator, but it does seem to be 
in the vicinity of 9kHz, give or take a kHz or two. But as I also live 
within 1km of 4 high power broadcast transmitters, (not to mention the 
amateur radio related fields ;-)) I can safely say this kind of  RF field 
does not make any difference to the sensation. Also, I have spent a fair 
amount of time in screened rooms, and can say that makes no difference 
either... if anything, a screened room often makes it more noticeable 
because the ambient noise level is quite low inside them.

Cheers, Jim Moritz
73 de M0BMU