MTS2000 Help

mike38015 · Post by **mike38015** » Wed Oct 03, 2001 7:19 pm

I have a MTS2000 that I want to use with a ear phone so I can monitor while in meetings and such without disturbing everyone in the room.

I purchased a external audio adapter from ebay but whenever I plug a standard ear phone into the adapter I get a constant tone through the ear piece except when it receives radio transmissions. The plug for the ear phone fits loosely in the jack and if I move it around it the radio transmits.

My question is, do I need a ear phone made by motorola or do I have a bad adapter.

Astro_Saber · Post by **Astro_Saber** » Wed Oct 03, 2001 8:40 pm

i would sufice o say that it could be either or. but then again im no pro at it, if you get a dift headphone and it makes the same noise then i would say its the adapter or vice versa. all i can gander at

Will · Post by **Will** » Thu Oct 04, 2001 3:00 pm

You need a special earphone to use with the Jedi audio adaptor. If not it keys the transmitter or sets a constant tone.
You could cut the center conductor on the cord to the earphone and add a 10uf capacitor with the "+" side twards the radio connector/plug's tip.
Also the 3.5mm threaded plug on the earphone must be a three conductor and the earphone hooks to the "tip" and ground, no connection the the other "ring" contact.

<font size=-1>[ This Message was edited by: Will on 2001-10-04 19:01 ]</font>

mike38015 · Post by **mike38015** » Thu Oct 04, 2001 7:10 pm

Is this ear phone available only from Motorola or can it be found else where.

Mike

Will · Post by **Will** » Sat Oct 06, 2001 2:06 pm

I have several alternate sources for earphones. It is easer to modify the cable on one than pay the Motorola price,,, about thirty five dollars or so.

Monty · Post by **Monty** » Sat Oct 06, 2001 3:12 pm

Hi:

I have the " Factory " ones designed for
those if you are interested.

They have a special impeadence for proper
operation.

Monty