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microphone mh-34b4b


hanz PA3ZZ
 

Hi,

Does any one have experiance with connecting a handmic like this one?mh-34b4b ?

The ptt doesn't switch in the bitx, led on mic is lit. With the switch delivered with the bitx the ptt works fine.

I tried the mic with the test circuit (led and resistor and it switches the led on and of).

Any one an idea?

73's

hanz de PA3ZZ


 

Hans, you will need to rewire the mic.

Remove R1
Connect mic -ve to ground
wire PTT button to ground and other end to data pin use that pin for PTT
You will need a 4pin socket.

Emacs!

At 10-04-2017, you wrote:

Hi,

Does any one have experiance with connecting a handmic like this one mh-34b4b ?

The ptt doesn't switch in the bitx, led on mic is lit. With the switch delivered with the bitx the ptt works fine.

I tried the mic with the test circuit (led and resistor and it switches the led on and of).

Any one an idea?

73's

hanz de PA3ZZ


hanz PA3ZZ
 

On Mon, Apr 10, 2017 at 04:03 am, Raj vu2zap wrote:
Remove R1

hi Raj,

Thanks a lot!

I see removing the R1 should do the trick.?

have a nice day.

vy 73's hanz de PA3ZZ


hanz PA3ZZ
 

Hi Raj,

Did the mods, works perfect.

Thanks.

hanz