[Elecraft] Heil Handie Mic IC Problem

[LARRY SPRINGER]

Don

Thanks for the response.
Yes, I found it very frustrating that Heil does not document their wiring.
yes for the Proset -IC the Bias is turned on.
I tried E-mail to Heil but got no answer.
Your idea on a blocking cap could explain what I am seeing.
I think I might ring out the adapter to see if it is using the bias in pin 5.

Larry K6PJ


On Fri, 21 May 2010 09:34:37 -0400
  Don Wilhelm <w3fpr at embarqmail.com> wrote:
> Actually, this sounds like a question that should be answered by Heilsound. 
> You may have a non-working microphone or you my have an adapter that will 
>not work with the K3.
> Both the ProSet-iC and the HandiMic-iC should need bias if I recall 
>correctly.
> The K3 provides bias on the AF pin, and that Kenwood cable may include a 
>blocking capacitor (which would render the K3 bias ineffective) and depend on 
>the voltage at Kenwood pin 5 to power the element (the K3 has voltage on pin 
>6).
> What I am saying is that only Heil can provide the right answer - they do 
>not publicize the schematics for their adapters and cables.
> Unfortunately, HeilSound in the past has stated that Elecraft is the SAME as 
>Kenwood, but actually it is not the same - it is "compatible" but that does 
>not make them "equal".
> The difference is in the use of pins 5 and 6 on the mic connector.  Elecraft 
>uses pin 6 for 8 volts, Kenwood uses pin 5 for 8 volts.
> Bottom line - any mic (or adapter cable) that depends on the Kenwood pin 5 
>voltage will not work with the Elecraft pinout.  As one "for instance", the 
>Kenwood MC-85 microphone will not work with the K3 for this very reason.
> 
> 73,
> Don W3FPR
> 
> Mike wrote:
>> Larry,
>>
>> See if this is it. The K3 uses the same connections as Kenwood. 
>> http://homepage.ntlworld.com/rg4wpw/date.html#kenwood
>>
>> 73, Mike NF4L
>>
>> K6PJ wrote:
>>   
>>> I have used the HEIL Proset with the IC microphone since I buught my K3 with
>>> excellent results.
>>> I decided I wanted a desk Mike so I thought the HEIL Handie Mic IC should
>>> give me similar results.
>>> So I bought a Handi Mic IC and CC1K cable. I get no audio into the K3 with
>>> this combination.
>>> Is anyone using this combination with the K3?
>>> Should it work?
>>>
>>> Does anyone know the wiring of the 4 pin connector on the Handi Mic IC?
>>> I cannot find it on the Heil web site.
>>>
>>> 73 & Thank You
>>> Larry K6PJ
>>>   
>>>     
>>
>>
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