talkback in uniden

[buckwhite]

i have a friend that wants talkback in his 78xl. why? i dont know. anyone have any idea how to do it? i thought about switching it on and off with the channel 9/19 switch.

 

[Cheech]

Pretty simle beleive it or not all you got to do is conect the ground of the PA and external speaker jack together. You put a resistor in line with the switch to adjust the volume. You can also put a potentiometer in place of the resistor to adjust the volume of the talk back. Th resistor way is just one set volume.

 

[buckwhite]

allright, thanks...

 

[Cheech]

Yep no problem!

 

[113NJ]

Try a 68ohm resistor if too loud for ya go to 100

 

[Cheech]

Try a 68ohm resistor if too loud for ya go to 100

There you go I was going to post the resistor value but I did not know it. Good deal!!

 

[DTB Radio]

Another simple way is to run a resistor from pin 4 of the mic jack to ground. Does the same exact thing. A value between 15 ohms and 220 ohms should give you the level you need. If you go below 15, you will tend to pull energy away from the modulation of the radio.