[Elecraft] KX3: popping noise in radio speaker

[Edward R Cole]

Subject: Re: [Elecraft] KX3: popping noise in radio speaker
Message-ID: <536F6E90.5000501 at embarqmail.com>
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Ed,

Were those good quality, name brand batteries?  I have heard similar
popping noises from audio amplifiers caused by batteries with high
series resistance.  I have not observed that problem with the KX3, so I
am just suggesting that the problem may have been the batteries.

73,
Don W3FPR
-----------
Don,

Reasonable question but were taken out of new package for install 
into the radio.  I measured each Duracel AA battery afterward at 
1.53v unloaded.  Popping ceased with external 13.5vdc applied, with 
either internal speaker or external speakers.  Since I do not intend 
to every use internal batteries, it will remain a curiosity.  I will 
run it on 13.5v from either home supply, car battery or portable 
sealed-acid battery.  I'm beyond the age for mountain climbing or 
backpacking.  Hiking thru airports is enough!

Now awaiting the 2M module for my KX3.



73, Ed - KL7UW
http://www.kl7uw.com
     "Kits made by KL7UW"
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