[Hallicrafters] sideways query

[Peter VK6PM]

Although it's normally due to high noise exposure levels in the past,
some blood pressure medications can give rise to tinnitus symptoms as
well. 
If it has come on suddenly it may be a medication related thing

Many ex-national service people got damage during their weapons
training with no hearing protection.
I've measured it, even with 1/4 inch mics and 20 db attenuator its
still been FSD (132 dbLin) at 5 metres away.

Regards
Peter VK6PM 

----- Original Message -----
From: "Mike Everette" 
To:"Richard Knoppow" , "Duane Fischer W8DBF" ,
"hallicrafters at mailman.qth.net" , "Jammer" 
Cc:
Sent:Tue, 28 Jan 2014 18:44:54 -0800 (PST)
Subject:Re: [Hallicrafters] sideways query

 I have heard that this condition can be brought on from playing an
instrument in a band or orchestra, especially a brass instrument. 
Don't know if that's true, but the dB levels are rather awesome in
that environment.

 Old time "aviators" said it could be due to flying in open cockpit
planes; or in multi engine types where the prop tips were within
inches of the cockpit windows.

 73
 Mike
 WA4DLF

 On Tuesday, January 28, 2014 4:41 PM, Richard Knoppow  wrote:

 ----- Original Message ----- 
 From: "Duane Fischer, W8DBF" 
 To: ; "Jammer" 

 Sent: Tuesday, January 28, 2014 5:47 PM
 Subject: Re: [Hallicrafters] sideways query

 > You really should see an ENT about it Terry. It is caused 
 > by nerve damage. It is generally not reversable. Get in 
 > there and get in checked out! Maybe they can prevent it 
 > from getting worse.
 >
 > As far as I know, I have never heard of any link between 
 > the ear condition you describe and Amateur Radio, wearing 
 > headphones etc. However, if you listened to that heavy 
 > metal and other LOUD music? of the seventies, all bets are 
 > off! Good luck -
 >
     I concur with this. Its important to exclude circulatory 
 problems, tumors and other potentially serious problems. A 
 thorough test will include an audiogram and other hearing 
 tests and an MRI. Possibly also a nerve conduction test.
     It is very common to develop a hearing loss with age. 
 Hearing loss is often the result of exposure to loud sound 
 but can also be due to other things and may be genetic. I 
 can just about gurantee that if you are over thirty and male 
 you have some degree of loss. The problem is that it comes 
 on very gradually so you can develop a rather sever loss 
 without knowing it other than having problems understanding 
 people in noisy locations, etc.  If you find yourself saying 
 "what" a lot you have a hearing loss.  Hearing losses and 
 tinnitus do not always go together but very often do.  AFAIK 
 there is no effective cure for either but you should get 
 checked out anyway.

 --
 Richard Knoppow
 Los Angeles
 WB6KBL
 dickburk at ix.netcom.com 

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