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K3 Mic MH2 on K2

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Bernard Gaffney, N8PVZ/QRP

K3 Mic MH2 on K2

My K2, s/n 5601, is currently wired as a Kenwood, and
I'm using a Kenwood MC-60A desk mic. Looking at the
MH2 vs Kenwood wiring on the K2, they appear (almost)
identical except for pins 5 & 6. So, I'm thinking if I
wanted to use the MH2 on the K2, I'd just need to whip
up an adapter cable for the MH2. Essentially, run pins
1, 2, 3, 4, 7,& 8 on the K2 side straight thru to the
MH2 side, leave pin 5 (func) on the MH2 side
unconnected, leave pin 6 on the K2 side unconnected,
and run pin 5 on the K2 side (5v) to pin 6 on the MH2
side (5v). That way the MH2 would see the same pinout
as if the K2 were wired for an MH2 (except for func -
not connected - which I don't care about). I'd mainly
be doing this if I were going portable w/the K2 and
didn't want to drag the MC-60A (desk mic) along.

Similarly, I could create a slightly different adapter
cable to use the MC-60A on my (newly-ordered) K3.

Anyone see any problems w/this approach?

Thanks.

72 de N8PVZ
---bernie gaffney

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Don Wilhelm-3

Re: K3 Mic MH2 on K2

Bernie,

It may be even easier than that - if you do not use the MC-60 mic on a
Kenwood transceiver, then you can re-wire the 8 pin mic plug - just move
the wire currently connected to pin 5 to pin 6. If there was something
already connected to pin 6, you will want to remove it (and you will
lose the function of whatever it accomplished).

Since the Kenwood mic does not want a resistor between 5 volts and pin 1
(AF), you must install that resistor in the MH2 mic plug rather than
across the mic jack inside the K2. That action will dedicate the MH2
mic to YOUR K2, but that may be OK unless you try to sell the mic.

With the advent of the K3, we should all be thinking about wiring
whatever mic we intend to use for Elecraft gear to the Elecraft pinout -
for K2s, just wire straight across the mic header, and if you are using
a non-Elecraft mic, just wire the mic plug to match the Elecraft pinout.
In the long run, I believe re-wiring the mic plug is the most sane
solution - plus it will also work with the K3.

73,
Don W3FPR

73,
Don W3FPR

Bernard Gaffney, N8PVZ/QRP wrote:

> My K2, s/n 5601, is currently wired as a Kenwood, and
> I'm using a Kenwood MC-60A desk mic. Looking at the
> MH2 vs Kenwood wiring on the K2, they appear (almost)
> identical except for pins 5 & 6. So, I'm thinking if I
> wanted to use the MH2 on the K2, I'd just need to whip
> up an adapter cable for the MH2. Essentially, run pins
> 1, 2, 3, 4, 7,& 8 on the K2 side straight thru to the
> MH2 side, leave pin 5 (func) on the MH2 side
> unconnected, leave pin 6 on the K2 side unconnected,
> and run pin 5 on the K2 side (5v) to pin 6 on the MH2
> side (5v). That way the MH2 would see the same pinout
> as if the K2 were wired for an MH2 (except for func -
> not connected - which I don't care about). I'd mainly
> be doing this if I were going portable w/the K2 and
> didn't want to drag the MC-60A (desk mic) along.
>
> Similarly, I could create a slightly different adapter
> cable to use the MC-60A on my (newly-ordered) K3.
>
> Anyone see any problems w/this approach?
>
> Thanks.
>
> 72 de N8PVZ
> ---bernie gaffney
>
>
>
>
>
> ____________________________________________________________________________________Luggage? GPS? Comic books?
> Check out fitting gifts for grads at Yahoo! Search
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>

Bernard Gaffney, N8PVZ/QRP

Re: K3 Mic MH2 on K2

Don,

thanks for the reply. I may not have been clear in
my original Post, but what I want to do is have the
mics be interchangeable; i.e., be able to use either
mic on either rig, not just on a specific rig. Sounds
like that may not be possble, based on your reply?

72 de N8PVZ
---bernie

--- Don Wilhelm <[hidden email]> wrote:

> Bernie,
>
> It may be even easier than that - if you do not use
> the MC-60 mic on a Kenwood transceiver, then you
> can re-wire the 8 pin mic plug - just move the wire
> currently connected to pin 5 to pin 6. If
> there was something already connected to pin 6, you
> will want to remove it (and you will lose the
> function of whatever it accomplished).
>
> Since the Kenwood mic does not want a resistor
> between 5 volts and pin 1 (AF), you must install
> that resistor in the MH2 mic plug rather than
> across the mic jack inside the K2. That action will
> dedicate the MH2 mic to YOUR K2, but that may be OK
> unless you try to sell the mic.
>

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Don Wilhelm-3

Re: K3 Mic MH2 on K2

Bernie,

In that case, build an adapter.

73,
Don W3FPR

Bernard Gaffney, N8PVZ/QRP wrote:

> Don,
>
> thanks for the reply. I may not have been clear in
> my original Post, but what I want to do is have the
> mics be interchangeable; i.e., be able to use either
> mic on either rig, not just on a specific rig. Sounds
> like that may not be possble, based on your reply?
>
> 72 de N8PVZ
> ---bernie
>
> --- Don Wilhelm <[hidden email]> wrote:
>
>> Bernie,
>>
>> It may be even easier than that - if you do not use
>> the MC-60 mic on a Kenwood transceiver, then you
>> can re-wire the 8 pin mic plug - just move the wire
>> currently connected to pin 5 to pin 6. If
>> there was something already connected to pin 6, you
>> will want to remove it (and you will lose the
>> function of whatever it accomplished).
>>
>> Since the Kenwood mic does not want a resistor
>> between 5 volts and pin 1 (AF), you must install
>> that resistor in the MH2 mic plug rather than
>> across the mic jack inside the K2. That action will
>> dedicate the MH2 mic to YOUR K2, but that may be OK
>> unless you try to sell the mic.
>>
>
>
>
> ____________________________________________________________________________________
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>

N2TK

RE: K3 Mic MH2 on K2

Is it possible to use one of the Heil mike adapters? When I go offshore I
take my Heil headset in a pouch. I also have a Icom, Yaesu and Kenwood Heil
adapters in the pouch. This way I can plug into any rig. If the K3 is wired
as a Kenwood, can't you just use the Kenwood mike adapter?
Or if your mike requires voltage on the mike, can you use one of the other
Heil adapters?

N2TK, Tony

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Don Wilhelm
Sent: Monday, May 14, 2007 1:41 AM
To: Bernard Gaffney, N8PVZ/QRP
Cc: [hidden email]; [hidden email]
Subject: Re: [Elecraft] K3 Mic MH2 on K2

Bernie,

In that case, build an adapter.

73,
Don W3FPR

Bernard Gaffney, N8PVZ/QRP wrote:

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Dan Barker

RE: K3 Mic MH2 on K2

In reply to this post by Don Wilhelm-3

Naw, just modify the Kenwood and both mics to the World Wide Standard (er,
ah, the Elecraft standard).

<g>

Dan / WG4S / K2 #2456

<snip>
> I want the
> mics be interchangeable; i.e., be able to use either
> mic on either rig, not just on a specific rig. Sounds
> like that may not be possble, based on your reply?
</snip>

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Bernard Gaffney, N8PVZ/QRP

RE: K3 Mic MH2 on K2

In reply to this post by N2TK

I think it would depend on the type of connector the
Heil adapter users to connect to the Heil mics (not
sure what that is) and what the Heil adapter expects
each pin on the mic to be;i.e., AF, up/dn, PTT, etc.
Probably might not be a good match w/a non-Heil mic.
But, maybe.

72 de N8PVZ
---bernie

--- "N2TK, Tony" <[hidden email]> wrote:

> Is it possible to use one of the Heil mike
> adapters? When I go offshore I
> take my Heil headset in a pouch. I also have a Icom,
> Yaesu and Kenwood Heil
> adapters in the pouch. This way I can plug into any
> rig. If the K3 is wired
> as a Kenwood, can't you just use the Kenwood mike
> adapter?
> Or if your mike requires voltage on the mike, can
> you use one of the other
> Heil adapters?
>
> N2TK, Tony
>
>

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---Sinatra

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