Question about motorola nsn6027a Ext. Speaker

[kc8zdf]

I just picked up a brand new nsn6027a ext amplified speaker today. I have found that to wire it from 12v you have to put yellow, green, red together to 12v + and white and black too 12v -. So far have that done. Then you take brown wire to positive on mono connector and shield to negitive on mono cable. It also states that you have too run a jumper from the negitive shield of audio to the white and black wires that are going to ground. So I did all this and when I pluged into pro-96 scanner it is half as loud as the radio shack amplified speaker. So somewhere I must be doing something wrong and need some assistance on this if anyone can help.

Let me know if anyone has wired one of these before at all..

P.S. The nsn6027a is the white motorola amplified speaker thanks.

Brian kc8zdf

 

[iMONITOR]

See if this site helps you:

http://www.n0ss.net/index_general.html

 

[kc8zdf]

Yes this helps a little. Mine is wired the same but it is not very loud. As I said before it does not get as loud as the radioshack amplified speaker does. Hmmm maybe missing something if anyone else might be able to help let me know. Thanks for the info though on the page you gave me. I did double check to make sure it was wired right.

Thanks kc8zdf

 

[iMONITOR]

Yes this helps a little. Mine is wired the same but it is not very loud. As I said before it does not get as loud as the radioshack amplified speaker does. Hmmm maybe missing something if anyone else might be able to help let me know. Thanks for the info though on the page you gave me. I did double check to make sure it was wired right.

Thanks kc8zdf

What are you using for your 12V power?

 

[kc8zdf]

I get my 12v from battery. I have a 8 gauge wire coming in thru fire wall going to a block distribution block. The I get my ground from the console that is mounted thru the chassis of vehical. So not really sure why it not working right. It's probley something i'm doing somewhere. It's weird casue I get altinator hum of course so I know I can get rid of that but the funny thing is that is amplifed and loud but if you have ever herd a pro-96 with out an external amplifed speaker when you go to turn volume up it sounds likes audio portion is not being driven. Well thanks for all your help so far. I will see if anyone else might post anything thanks for your help again.
Not giving up yet though lol.
kc8zdf, Brian

 

[kc8zdf]

Well we got the speaker finally running. Come out to be had to cut a jumper going from ground 12v to ground sheild on the speaker input side of things. Works great now. Super loud. The only problem I have now is alt.. nosie. What can I use to eleminate this hum? Thanks for the input.

kc8zdf brian

 

[Uplink]

Well we got the speaker finally running. Come out to be had to cut a jumper going from ground 12v to ground sheild on the speaker input side of things. Works great now. Super loud. The only problem I have now is alt.. nosie. What can I use to eleminate this hum? Thanks for the input.

kc8zdf brian

You can put this in line between the scanner and the speaker, available at places like Crutchfield, its an isolation transformer, works great at making hum vanish.

 

[K8PBX]

... The only problem I have now is alt.. nosie. What can I use to eleminate this hum?... kc8zdf brian

Is the noise you're hearing a constant hum or does it vary with engine speed?

 

[kc8zdf]

The nosie is up and down as I speed up and Slow down so I know it the altinator. Today I put in series with the power cable to speaker an rf choke from radio shack that a friend told me about and Eleminated almost 98% of altinator noise I was hearing. So we are all up and running. Thanks for all the inputs and help on everything. If anyone else has this problem get one of the rf chokes from radio shack... works great.

Thanks again for all help

73 kc8zdf Brain

Now my ears are bleeding lol...