Speaker Mic

Post Reply
2M0ufo
 

Posts: 13
Joined: 31 Dec 2021, 12:52

Speaker Mic

Post by 2M0ufo »

I am looking for Speaker/mic suggestions , thank you
Cheers
Stevie
2M0ufo
Faraaz VK4JJ
 

Posts: 215
Joined: 30 Dec 2021, 21:56

Re: Speaker Mic

Post by Faraaz VK4JJ »

What do you mean?
2M0ufo
 

Posts: 13
Joined: 31 Dec 2021, 12:52

Re: Speaker Mic

Post by 2M0ufo »

Code: Select all

https://imgur.com/a/Gqq6Fos
Image
Last edited by 2M0ufo on 12 Feb 2022, 15:22, edited 5 times in total.
Cheers
Stevie
2M0ufo
Vlad.cepraga
 

Posts: 10
Joined: 31 Dec 2021, 12:12

Re: Speaker Mic

Post by Vlad.cepraga »

Hello, I am in the process of designing a 3d printed adaptor for those mics with 3.5 and 2.5 jack. Will use panel mount female 3.5 and 2.5 jack in a 3s housing that terminate in two short leads with dual 3.5mm. will update when finished.
2M0ufo
 

Posts: 13
Joined: 31 Dec 2021, 12:52

Re: Speaker Mic

Post by 2M0ufo »

Awesome , count me in for one , i have one from skinny Chinese uSDR

Thank you Vlad
Cheers
Stevie
2M0ufo
K0WDB
 

Posts: 4
Joined: 31 Dec 2021, 03:27

Re: Speaker Mic

Post by K0WDB »

Vlad.cepraga wrote: 12 Feb 2022, 11:50 Hello, I am in the process of designing a 3d printed adaptor for those mics with 3.5 and 2.5 jack. Will use panel mount female 3.5 and 2.5 jack in a 3s housing that terminate in two short leads with dual 3.5mm. will update when finished.
How is your design coming along?
scubafrique
 

Posts: 32
Joined: 02 Jan 2022, 10:20
Location: JO01GJ

Re: Speaker Mic

Post by scubafrique »

Is this for the Kenwood (Baofeng) style of Speaker mic? I was toying with cutting the connections off and rewiring to fit the (tr)uSDX but an adapter would be great - Hear so many conflicting reports on the audio quality from the speaker itself, but apparently headphones can sort it out.
G4FSX / ZS1FSX
Colinsk
 

Posts: 4
Joined: 21 Feb 2022, 23:57

Re: Speaker Mic

Post by Colinsk »

I have one of the Chinese mics sold for usdx. It ends in a 4 conductor TRRS 3.5mm adapter. I plugged it into a splitter that is for a headset to an old computer. TRRS in, 2 TRS out. I had to rewire the mic cable inside the mic and the only way it could work was to use the microphone marked plug into the audio and the headphones marked connector in the PTT connector.

The volume must be high as the speaker is 8ohm. The mic ant PTT function. I will perform sound checks as I can make contacts. The rewire was done with an ohm meter to swap wires to the right position and I tied the negative mic and speaker connections in the microphone to a common ground.

Colin
K6JTH
K6JTH
Colinsk
 

Posts: 4
Joined: 21 Feb 2022, 23:57

Re: Speaker Mic

Post by Colinsk »

Here is a photo of the final wiring.
Attachments
DED2176A-BE8A-44D8-AE46-58D42F621822.jpeg
DED2176A-BE8A-44D8-AE46-58D42F621822.jpeg (208.4 KiB) Viewed 2735 times
K6JTH
Luca66
 

Posts: 123
Joined: 16 Apr 2022, 13:02

Re: Speaker Mic

Post by Luca66 »

Pay attention to the speaker impedance. The small speaker connected to the PCB is 32 ohms. So also externally you have to connect something similar. 8 ohms is too little, better to use headphones.
dca123
 

Posts: 3
Joined: 18 Apr 2022, 18:33

Mic recommendations to (tr)uSDX

Post by dca123 »

I want to know any good/cheap/portable microphone to tr uSDX

I am going to buy tr usdx qrp transceiver from authorized aliexpress dealer, and I want to use It with external microphone

Thanks you very much.

73's
scubafrique
 

Posts: 32
Joined: 02 Jan 2022, 10:20
Location: JO01GJ

Re: Speaker Mic

Post by scubafrique »

https://www.facebook.com/groups/trusdx/ ... 052153143/

I’ve posted pics in here of an adaptation to a Baofeng -Kenwood style earpiece speaker mic
G4FSX / ZS1FSX
W4OP
 

Posts: 15
Joined: 18 Feb 2022, 03:39

External Microphone

Post by W4OP »

Pardon me if this has been discussed. Looking at the schematic, it appears that the external microphone should also be electret. Does anyone have input on a microphone that sounds good with the rig?

Tnx,
Dale W4OP
Luca66
 

Posts: 123
Joined: 16 Apr 2022, 13:02

Re: Speaker Mic

Post by Luca66 »

I am assembling an Electret capsule, there is not much to do or to look for.
Post Reply

Users browsing this forum: No registered users and 0 guests