Anytone 6666 Pro Microphone Fix

[Shadetree Mechanic]

I got one of the new 6666 Pro radios a while back and have been checking it out. One of the things I have noticed, is that the microphone has a big hollow sound. The big front grille on the mic looks great, but it is not functional. The stock electret element is in a tiny hole right below the grille. And the grille is not blocked off like on the other Anytone mics which leads to the hollow sound. The stock electret element is good for DX, but doesn't have a full sound. The solution is to use elements from a telephone handset or from a speaker phone. The telephone elements are tailored to voice because the telephone people want you to sound like you. Radio people should want that too.

 

[Shadetree Mechanic]

Three additional elements secured together with a wire tie, and they fit perfectly under the board. Soldered directly to the pins of the stock element for a total of 4.

 

[Shadetree Mechanic]

After a little testing, the sound is much improved, but the hollow sound is still there. So I grabbed a hand full of poly fill from my daughter's sewing table. I pulled off a piece and twisted it up. Secured the elements with double sided tape and wrapped the twisted poly fill around it. I used a small screwdriver to stuff it in around the edges.

 

[Shadetree Mechanic]

The spring on the PTT is a PITA and I almost lost it a few times. The solution is to heat it up and stick it to the PTT button.

 

[Shadetree Mechanic]

With the mich improved audio, I feel it's time to dethrone the 86v in my truck. And that is the plan for this afternoon.

 

[Shadetree Mechanic]

I did one for my President radio a while back.

Thread 'President Electret Microphone Upgrade' https://www.worldwidedx.com/threads/president-electret-microphone-upgrade.266369/

 

[Shadetree Mechanic]

Remove this capacitor for a little more treble.

 

[Eldorado828]

Remove this capacitor for a little more treble.

View attachment 70589

Chris, the very first generation q6 didn't have that cap there and those radios using the mic would eventually blow the ground trace inside the radio. They revised the mic as the fix for that and no more blown ground traces after that. I had talked to someone from anytone years ago after asking the question about the 2 mics I had, one having that capacitor and the other one not. That was the explanation I was given and they even sent me a free mic to replace the one that didn't have the cap. I remember the non-cap mic had a lot more audio or gain than the one with the cap.

I know this isn't the same-ish mic or radio but thought I'd make mention of it.