DX959 Foot pedal mod

[Deleted User 30222]

I've been working on a mod on my Galaxy DX959. And i want to connect a foot pedal to mic input. I have a mic cable and my foot pedal. Just not 100% sure of the wiring. My mic cable is pin1 shld, pin2 White, pin 3 Red and pin 4 is Black. My pedal has 3 wires( Red,Black and White) The bottom says: Red=NO, White=Com and Black is NC. And my radio is 1-Shld, 2-Yellow(audio), 3=Red(Tx) and 4=White(Rx). Any help would be greatly appreciated :D

[MDYoungblood]

Okay,, lets talk about the pedal first. the red wire, NO I believe means "normally open" the white is the ground (common), and the black, NC means "normally closed" , this can be checked with a multi meter (ohm meter). The ground (common) is connected to the shield in the mic plug, the other wire (should be the red) is connected to the pin 3 (red or TX) in the plug, this should key the radio. I would add a few ferrites beads on the pedal cord as it might pick up stray RF. A 959DX shouldn't need the receive (RX) connected, but if you want it can go on pin 4

3's

Greg

[Deleted User 30222]

I did check it with a meter, seems all good there. I will have to pick up some beads. And one other thing. Part of this mod i'm doing. I have to connect a wire to the Board Ground. I see where the board has a tab, and that tap is soldered to the chassis. Would that be my board ground?

[MDYoungblood]

If there is a tab connected between the case/chassis and the board that would be an excellent connect point as long as it's not part of the RF section (near the antenna jack).

3's

Greg

[Deleted User 30222]

All good then. It's on the opposite side. Hope to have this finished tomorrow. Just need to get to the store for some beads and shrink tubing. As usual, you been a great help. Peace

[Deleted User 30222]

Okay,, lets talk about the pedal first. the red wire, NO I believe means "normally open" the white is the ground (common), and the black, NC means "normally closed" , this can be checked with a multi meter (ohm meter). The ground (common) is connected to the shield in the mic plug, the other wire (should be the red) is connected to the pin 3 (red or TX) in the plug, this should key the radio. I would add a few ferrites beads on the pedal cord as it might pick up stray RF. A 959DX shouldn't need the receive (RX) connected, but if you want it can go on pin 4

3's

Greg

Ok, had a change in my plans. Seeing the "Y" cable you use. I think i want to wire my pedal directly to my mic. I was just going to put a 4 pin connector on it. But now that just seems silly. Of course now, just thinking about it. Maybe i should connect a pigtail 1/4'' female plug to my mic. And then a 1/4'' male on my pedal. I think that might be the best thing.

[MDYoungblood]

Okay,, lets talk about the pedal first. the red wire, NO I believe means "normally open" the white is the ground (common), and the black, NC means "normally closed" , this can be checked with a multi meter (ohm meter). The ground (common) is connected to the shield in the mic plug, the other wire (should be the red) is connected to the pin 3 (red or TX) in the plug, this should key the radio. I would add a few ferrites beads on the pedal cord as it might pick up stray RF. A 959DX shouldn't need the receive (RX) connected, but if you want it can go on pin 4

3's

Greg

Ok, had a change in my plans. Seeing the "Y" cable you use. I think i want to wire my pedal directly to my mic. I was just going to put a 4 pin connector on it. But now that just seems silly. Of course now, just thinking about it. Maybe i should connect a pigtail 1/4'' female plug to my mic. And then a 1/4'' male on my pedal. I think that might be the best thing.

Are you talking about this?? It is the simplest way to key the radio.

3's

Greg

[Deleted User 30222]

Yep. But i'm starting to think i don't fully understand the hook up on these. I wanted connect the pigtail (1/4'' female) to my cb mic. That way the pedal connects there, so i don't have to unplug my mic to plug in my pedal. I see the 1/4'' plug on yours, which i assume is for the pedal. Then i see the connector for your radio. But why the XLR connector.

[MDYoungblood]

The XLR connects to my Heil HM-1 Pro microphone, that pic was just an internet reference but the same as what I use, only mine have longer cords to reach my equipment. My PTT is this,


3's

Greg

[Deleted User 30222]

So your mic connects directly to your radio, not a mixer. That's why i didn't understand your cable setup. Unless i'm wrong. But my mic will go to a mixer, then to my radio. So i'm hoping to keep my original power/echo mic, and just wire my pedal to that. So all i have to do is flip a switch to go between the two.

[Deleted User 30222]

The XLR connects to my Heil HM-1 Pro microphone, that pic was just an internet reference but the same as what I use, only mine have longer cords to reach my equipment. My PTT is this,


3's

Greg

So does that just have 2 wires for the connection. SHLD and TX. Or do i need the Audio also.

[Deleted User 30222]

This is a pic of what i'm trying to do.