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Subject:
From:
Steve Dresser <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Thu, 18 Feb 2010 18:57:26 -0500
Content-Type:
text/plain
Parts/Attachments:
text/plain (184 lines)
Good question, Mark.  In Kenwood mics, I believe the smaller of the two 
plugs is wired to the mic element.

Steve

----- Original Message ----- 
From: "Mark" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, February 18, 2010 18:25
Subject: Re: Mike Impedance for modern Radios


> OK, this brings up an interesting question. How should the mike element be
> wired?
>
> God bless,
> Marks
> Jesus Is Lord!
> ----- Original Message ----- 
> From: "Steve Dresser" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Thursday, February 18, 2010 1:17 PM
> Subject: Re: Mike Impedance for modern Radios
>
>
>> Mark,
>>
>> Sounds like you've got your element across the PTT leads.
>>
>> Steve
>>
>> ----- Original Message ----- 
>> From: "Mark" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Thursday, February 18, 2010 15:37
>> Subject: Re: Mike Impedance for modern Radios
>>
>>
>>> Hi John,
>>>     Oddly, when I was tripping the VOX it was just the two wires 
>>> touching
>>> with no mike element. Now that I attached the wires to the element it
>>> quit
>>> tripping the vox. Its an odd one.
>>>
>>> God bless,
>>> Mark
>>> Jesus Is Lord!
>>> ----- Original Message ----- 
>>> From: "John Miller" <[log in to unmask]>
>>> To: <[log in to unmask]>
>>> Sent: Thursday, February 18, 2010 12:29 PM
>>> Subject: Re: Mike Impedance for modern Radios
>>>
>>>
>>>> it trips the vox but there's no audio? strange, is your mic gain set 
>>>> too
>>>> low? what if you crank it all the way up? any improvement? if it's
>>>> tripping
>>>> the vox there must be some audio there.
>>>> ----- Original Message ----- 
>>>> From: "Mark" <[log in to unmask]>
>>>> To: <[log in to unmask]>
>>>> Sent: Thursday, February 18, 2010 3:15 PM
>>>> Subject: Re: Mike Impedance for modern Radios
>>>>
>>>>
>>>>> Hi John,
>>>>>     Actually, I rewired the mike head to go directly from the element
>>>>> to
>>>>> the cord. Then I can use either VOX or the PTT for the Heil. On the
>>>>> plug,
>>>>> I
>>>>> am using the shield and the tip. These two seemed to trip the VOX on
>>>>> the
>>>>> radio. So, I am puzzled.
>>>>>
>>>>> God bless,
>>>>> Mark
>>>>> Jesus Is Lord!
>>>>> ----- Original Message ----- 
>>>>> From: "John Miller" <[log in to unmask]>
>>>>> To: <[log in to unmask]>
>>>>> Sent: Thursday, February 18, 2010 11:31 AM
>>>>> Subject: Re: Mike Impedance for modern Radios
>>>>>
>>>>>
>>>>>> are you using the ptt button on the mic? or the ptt you'd usually use
>>>>>> with
>>>>>> the heil mic? If the usual ptt switch, try the mic holding the ptt
>>>>>> button
>>>>>> at
>>>>>> the same time and see if maybe that switches the element on and off. 
>>>>>> I
>>>>>> don't
>>>>>> think HT mics do use the voltage but it's possible, I haven't seen 
>>>>>> one
>>>>>> yet
>>>>>> but there's got to be a reasonable reason, something's not wired
>>>>>> right.
>>>>>> If
>>>>>> that a 3 conductor plug on the HT mic? I need to check mine but if 
>>>>>> so,
>>>>>> I'm
>>>>>> wondering if the audio is not the tip.
>>>>>> ----- Original Message ----- 
>>>>>> From: "Mark" <[log in to unmask]>
>>>>>> To: <[log in to unmask]>
>>>>>> Sent: Thursday, February 18, 2010 2:14 PM
>>>>>> Subject: Re: Mike Impedance for modern Radios
>>>>>>
>>>>>>
>>>>>>> Hi John,
>>>>>>>     I am not sure about if the microphone had power to the element
>>>>>>> before
>>>>>>> I
>>>>>>> rewired it but I was under the impression that microphones for handy
>>>>>>> talkies
>>>>>>> didn't actually use that style element. I really don't know.
>>>>>>>     The Heil headset still has good audio. its just physically seen
>>>>>>> better
>>>>>>> days.
>>>>>>>     Actually, I am using the Heil adapter to plug the 3.5 MM plug 
>>>>>>> for
>>>>>>> the
>>>>>>> handy talkie mike in to the Kenwood.
>>>>>>>
>>>>>>> God bless,
>>>>>>> Mark
>>>>>>> Jesus Is Lord!
>>>>>>> ----- Original Message ----- 
>>>>>>> From: "John Miller" <[log in to unmask]>
>>>>>>> To: <[log in to unmask]>
>>>>>>> Sent: Thursday, February 18, 2010 10:42 AM
>>>>>>> Subject: Re: Mike Impedance for modern Radios
>>>>>>>
>>>>>>>
>>>>>>>> if the impedance was off, you'd have low audio but something would
>>>>>>>> be
>>>>>>>> there.
>>>>>>>> What it might be is, does the mic need power to work? and did you
>>>>>>>> make
>>>>>>>> sure
>>>>>>>> it's getting it? Some of those mics need power to the element. Was
>>>>>>>> the
>>>>>>>> mic
>>>>>>>> working before? Also, what was the problem with the heil mic? it
>>>>>>>> wasn't
>>>>>>>> the
>>>>>>>> same was it?
>>>>>>>> ----- Original Message ----- 
>>>>>>>> From: "Mark" <[log in to unmask]>
>>>>>>>> To: <[log in to unmask]>
>>>>>>>> Sent: Thursday, February 18, 2010 1:20 PM
>>>>>>>> Subject: Mike Impedance for modern Radios
>>>>>>>>
>>>>>>>>
>>>>>>>>> Hi
>>>>>>>>>     I decided to convert one of my junk box two meter mikes to a
>>>>>>>>> mike
>>>>>>>>> =
>>>>>>>>> for my Kenwood TS 440 S. This will hold me over until my Heil head
>>>>>>>>> set
>>>>>>>>> =
>>>>>>>>> is repaired. The conversion went smoothly and every thing went 
>>>>>>>>> well
>>>>>>>>> =
>>>>>>>>> until I tried to use the mike and no audio came out. I am sure the
>>>>>>>>> =
>>>>>>>>> wiring is right. So, I am left with the question of would this be
>>>>>>>>> an
>>>>>>>>> =
>>>>>>>>> issue of having the wrong impedance microphone? If so how does one
>>>>>>>>> go
>>>>>>>>> =
>>>>>>>>> about changing the impedance?
>>>>>>>>>     Thank you in advance for your help.
>>>>>>>>>
>>>>>>>>> God bless,
>>>>>>>>> Mark
>>>>>>>>> Jesus Is Lord!
>>>
> 

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