Topics

Handheld Mic w/ PTT for BITX40

davidzdeb@...
 

Which pins are used for the speaker output?

davidzdeb@...
 

On Thu, Jun 1, 2017 at 09:29 am, philip yates wrote:
HM-36.

 Which pins are used for the speaker output?

philip yates
 

Almost the same here, loads of spare connectors from previous projects, and a spare microphone.
Result... no outlay for new bits.

More to spend on strip board and knobs etc.

Phil - G7BZD

On Thu, Jun 1, 2017 at 8:58 PM, Ryan Flowers <geocrasher@...> wrote:
I really should have updated this thread. I have gone a different direction with the mic. I built one from scratch, and it's worked out nicely. I used 8 pin mic connectors because I got 5 of them for $6 on Amazon. I've detailed my homebrewed solution here:

http://miscdotgeek.com/bitx40-simple-microphone-made-scraps/
--
Ryan Flowers W7RLF

 

miscdotgeek.com

http://miscdotgeek.com/unofficial-bitx40-faq

http://miscdotgeek.com/bitx40-digital-jt65/ <-- Learn how to go digital on the BITX40


Ryan Flowers
 

I really should have updated this thread. I have gone a different direction with the mic. I built one from scratch, and it's worked out nicely. I used 8 pin mic connectors because I got 5 of them for $6 on Amazon. I've detailed my homebrewed solution here:

http://miscdotgeek.com/bitx40-simple-microphone-made-scraps/
--
Ryan Flowers W7RLF

 

miscdotgeek.com

http://miscdotgeek.com/unofficial-bitx40-faq

http://miscdotgeek.com/bitx40-digital-jt65/ <-- Learn how to go digital on the BITX40

philip yates
 

Pins 1, 7, 6, 5 are all that needs connecting, I too use the HM-36.

Phil - G7BZD

On Thu, Jun 1, 2017 at 3:01 PM, <celluloidfoundry@...> wrote:
This is the info I have found for wiring up the mic , any info on how you wired up would be great!


Thanks 
73
Chris VA7XZZ


celluloidfoundry@...
 

This is the info I have found for wiring up the mic , any info on how you wired up would be great!


Thanks 
73
Chris VA7XZZ

celluloidfoundry@...
 

HI Ryan,
How did this go with the HM36 mic? I bought the same one along with the 8 pin chassis mount. Do you have any advise or wiring diagrams for this?

Thanks
Chris VA7XZZ

Tim - K7PTM
 

I just saw this reply, sorry it took so long to reply - it is a Uniden BC645.  

Chuck
 

I used an Icom HM36 hand mic and replaced the bitx40 with the 8-pin chassis mount connector. and wired up the mic and PTT. It works great. Lots of contacts and good audio reports. 

73,

Chuck K3VPZ

John M
 

peatmoss - ki6ssi
 

My mic also uses a common ground. I checked the grounds from mic, ptt and speaker on the bitx, they all seem to be the same at least at dc. Schematic seems to show the same.

I connected the ground from the mic on the bitx to the cat5 connector. All the others ptt, mic and speaker share that ground. So far it seems to work fine.

davidzdeb@...
 

Have you gotten this to work?  I am curious to how it was wired up to the board.  I wasn't able to get my similar speaker mic to work due to a common ground.

peatmoss - ki6ssi
 

I bought this mic from Amazon for $7 and wired it up to a cat 5 connector. It has the same type of electret microphone that comes with the kit. I drilled a bigger hole for the mic as the one in the case seemed closed. Just 4 wires, ground, mic+, ptt and speaker. That leaves me 4 more wires for expansion. Thinking maybe serial or tune for digi modes.

black = speaker, green = ground, red = mic+ and white = ptt

https://www.amazon.com/gp/product/B00E95O4Z4/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1


MVS Sarma
 

All said,
 kits and parts charges less I suppose.
I had bought from him three times till now.



On Thu, Mar 16, 2017 at 7:32 PM, Tim via Groups.Io <km4wii@...> wrote:
Can you share the item numbers of those items please? It's been a day or two since a bought something on Amazon and I'm sure they are wondering what has happened. Thanks
73
Tim KM4WII

Tim - K7PTM <tamccain@...> wrote:

I bought a uniden microphone from Amazon.  It was listed as an electret microphone.  I also bought the 4 pin panel mount adapter.  All wired up, it works great and I get great audio reports.




--
Regards
Sarma
 

Tim
 

Can you share the item numbers of those items please? It's been a day or two since a bought something on Amazon and I'm sure they are wondering what has happened. Thanks
73
Tim KM4WII

Tim - K7PTM <tamccain@...> wrote:

I bought a uniden microphone from Amazon.  It was listed as an electret microphone.  I also bought the 4 pin panel mount adapter.  All wired up, it works great and I get great audio reports.

Tim - K7PTM
 

I bought a uniden microphone from Amazon.  It was listed as an electret microphone.  I also bought the 4 pin panel mount adapter.  All wired up, it works great and I get great audio reports.

Baruch Atta <baruchatta@...>
 

I used an old CB rig and replaced the mic element with the one in the kit.  

On Mar 15, 2017 8:30 AM, "Michael Davis" <maddmd818@...> wrote:
Since the Baofeng speaker mic has a ptt switch, you need to find out what wires are open and then connected when the ptt is pressed using your multimeter. You also may need to rewire all the way back to the speaker/mic with 6 wires. Baofeng uses two plugs with multi contacts. See this wiring diagram. http://www.miklor.com/COM/UV_Technical.php#spkrmic

Sent from Mike's iPad WA1MAD







Michael Davis <maddmd818@...>
 

Since the Baofeng speaker mic has a ptt switch, you need to find out what wires are open and then connected when the ptt is pressed using your multimeter. You also may need to rewire all the way back to the speaker/mic with 6 wires. Baofeng uses two plugs with multi contacts. See this wiring diagram. http://www.miklor.com/COM/UV_Technical.php#spkrmic

Sent from Mike's iPad WA1MAD

davetelling .
 

IC-718 manual, page 8, has the pinout & internal circuit:

http://www.icom.co.jp/world/support/download/manual/pdf/IC-718.pdf

William R Maxwell
 

Shields presumably on at least some of those 4 wires in the Baofeng cable? Some of the radio connections are likely grounds. link those up and you should have enough.


On 15/03/2017 3:14 PM, davidzdeb@... wrote:
I cut off the end of my baofeng speaker mic off and got 4 wires.  Does anyone have any ideas how I could connect this to the radio?  The radio needs 2 leads for PTT, 2 for speaker, and 2 for the mic.