Small Speaker Mod - THANKS!

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radiowave15

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Nov 29, 2011
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I picked up a small $7.00 Uniden non amplified speaker to use in the car with an old Pro -164. When I plugged it in the volume was way too low to use in the car. I figured I'd need an amplified speaker. But in the meantime I poked around RR and found a previous post with a fantastic solution.

That thread headline was: "Speaker Mod for external speaker Pro 95/96/106 "

A small piece of wire shorted to the antenna base and the external speaker is plenty loud. Many thanks to the poster.

Dan
 

wmbio

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Apr 22, 2005
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Wonderful!
FYI..
The full volume mod at the headphone jack mentioned in your post also works great on the Uniden BCD396T/XT scanners. There are a few threads and pix's here at RR.

I have the mod working perfectly on all my Uniden and GRE portable scanners.

Enjoy
Wmbio
 

RoninJoliet

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wmbio, you say you "HAVE" used the wire mod on a Uniden 396XT to raise the volume and it works with no problems in audio destruction.....
 

gewecke

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If you can find one, the amplified mobile speaker from radio shack works great too.
Sorry I don't have the model number of it handy,but I can dig my speaker out of the box an post it if someone's interested.

73,
n9zas
 

KC0CSE

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KANSAS CITY NORTH....
Well the MOD just worked for me...used a Motorola speaker and WOW it "boomed" the audio way up!!...had to turn it down....thanks for the info...

PRO 106
 

W2PMX

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The older RS scanners (but evidently not the PSR-800) have a resistor (10 ohms, IIRC) between the bottom of the earphone jack and ground. That wire simply shorts out the resistor, sending full speaker audio to the jack.

The Unidens have a totem pole output. Shorting the "ground" side of the jack to ground shorts the bottom half of the totem pole. Not something I'd want to do to my $400 scanner. Especially since putting a 10 watt amp in a speaker case would cost less than $10.
 

sjlamb

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Uniden provides ample warnings that grounding out the headphone jack can lead to a blown audio amp (and, of course, voids the warranty). Caveat Emptor.:(
 
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