Elecraft

MH2 Microphone Issue

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Jeff Cochrane - VK4XA

MH2 Microphone Issue

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David Herring-2

Re: MH2 Microphone Issue

Jeff

The button on my MH2 is certainly stiff. But mine seems to be a bit
more forgiving in the PTT department than you've described yours to
be. I don't have to remain totally clamped down on it for the rig to
stay in transmit mode.

I've never opened it, but perhaps there's a means to adjust it inside?

73,
Dave
K6DCH

Sent from my iPhone

On May 26, 2010, at 4:08 PM, "Jeff Cochrane - VK4BOF" <[hidden email]
> wrote:

> G'day everyone!
>
> First of all,
> After having given my K3 its first HF hitout this last weekend for
> our (Myself - VK4BOF, Gary - VK4FD & Dale - VK4DMC) mini dxpedition
> for the World Flora & Fauna at Undara Lava Tubes National Park in
> North Queensland, Australia I must say that I am more than impressed
> with my new K3.
>
> It performed flawlessly and was a real pleasure to use, the MH2
> microphone is however another matter.
>
> Whilst its transmitted audio quality is excellent it appears that
> you must be a 400lb gorilla to use the damned thing, the TX button
> is so stiff to use. :-)
>
> And even when you get the button in, it must be only barely making
> contact that as soon as you relieve any pressure at all from the
> button, the radio goes back to RX mode.
>
> Does anyone else have this issue?
>
> Jeff Cochrane
> VK4BOF
> Innisfail QLD
> Australia
> Elecraft K3 #4257
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
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> Please help support this email list: http://www.qsl.net/donate.html

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paulb

Re: MH2 Microphone Issue

In reply to this post by Jeff Cochrane - VK4XA

The MH2 mic PTT may be getting caught in the
rubber surround. It is easy to undo the cover.
Note that the PTT button only fits one-way, there
is a cut away slide which fits onto the switch.

For my own use the mic insert had a tad
to much bass, it has been slightly modded here to
suit.

regards

Paul
zl1ajy

AD4C2009

Re: MH2 Microphone Issue

In reply to this post by Jeff Cochrane - VK4XA

Hi mate,I do have the MH-2 and certainly is big and PTT swithc is little hard to press but it stays there even my thumb finger moves,I don't have that mechanical problem you have,I am sure some one on the group will come out with a solution and congratulations for your new K3,I am taking mine to a DXPedition to Peanut island here in South east FL,we will operating the CQ WW Contest in CW as W4K special call,73

AD4C

"For a refined ham it is compulsory to own a k3"

--- On Thu, 5/27/10, Jeff Cochrane - VK4BOF <[hidden email]> wrote:

From: Jeff Cochrane - VK4BOF <[hidden email]>
Subject: [Elecraft] MH2 Microphone Issue
To: [hidden email]
Date: Thursday, May 27, 2010, 2:08 AM

G'day everyone!

First of all,
After having given my K3 its first HF hitout this last weekend for our (Myself - VK4BOF, Gary - VK4FD & Dale - VK4DMC) mini dxpedition for the World Flora & Fauna at Undara Lava Tubes National Park in North Queensland, Australia I must say that I am more than impressed with my new K3.

It performed flawlessly and was a real pleasure to use, the MH2 microphone is however another matter.

Whilst its transmitted audio quality is excellent it appears that you must be a 400lb gorilla to use the damned thing, the TX button is so stiff to use. :-)

And even when you get the button in, it must be only barely making contact that as soon as you relieve any pressure at all from the button, the radio goes back to RX mode.

Does anyone else have this issue?

Jeff Cochrane
VK4BOF
Innisfail QLD
Australia
Elecraft K3 #4257
______________________________________________________________
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juergen piezo

Re: MH2 Microphone Issue

In reply to this post by Jeff Cochrane - VK4XA

Hi Jeff

The button is a bit "mushy" lacking a positive action.

Another problem that I have with the MH2 is its curly cord. The curly cord is so stiff that it pulls the radio if you try and stretch it a bit. It just does not have enough stretch, even if pulled a small amount.

I like using a hand mic. What I suggest you do is try and getting an original Icom HM36 hand mic. This Icom mic sounds pretty good on the K3. It has a nice soft curly cord and the button has a nice positive smooth micro switch click. The current model HM36 is junk made in China, try and get an original Japanese made HM36 that came with the early Icom radios. Just make sure you throw the Icom radio in the bin and keep the mic!

73
John

--- On Wed, 5/26/10, Jeff Cochrane - VK4BOF <[hidden email]> wrote:

> From: Jeff Cochrane - VK4BOF <[hidden email]>
> Subject: [Elecraft] MH2 Microphone Issue
> To: [hidden email]
> Date: Wednesday, May 26, 2010, 7:08 PM
> G'day everyone!
>
> First of all,
> After having given my K3 its first HF hitout this last
> weekend for our (Myself - VK4BOF, Gary - VK4FD & Dale -
> VK4DMC) mini dxpedition for the World Flora & Fauna at
> Undara Lava Tubes National Park in North Queensland,
> Australia I must say that I am more than impressed with my
> new K3.
>
> It performed flawlessly and was a real pleasure to use, the
> MH2 microphone is however another matter.
>
> Whilst its transmitted audio quality is excellent it
> appears that you must be a 400lb gorilla to use the damned
> thing, the TX button is so stiff to use. :-)
>
> And even when you get the button in, it must be only barely
> making contact that as soon as you relieve any pressure at
> all from the button, the radio goes back to RX mode.
>
> Does anyone else have this issue?
>
> Jeff Cochrane
> VK4BOF
> Innisfail QLD
> Australia
> Elecraft K3 #4257
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

juergen piezo

Re: MH2 Microphone Issue

In reply to this post by paulb

Hi Paul

What are your mods? Did you just use a capacitor to roll off the bass?

Someone once told me that the Heil HC5 is sound transducer that was very common on PC motherboards. I lost the web link of the manufacturer, which is a pity since the HC5 seems to produce good audio on just about every radio that I have used. The only problem is that you cant buy the HC5 cartridge anymore.

John

--- On Wed, 5/26/10, paulb <[hidden email]> wrote:

> From: paulb <[hidden email]>
> Subject: Re: [Elecraft] MH2 Microphone Issue
> To: [hidden email]
> Date: Wednesday, May 26, 2010, 10:53 PM
>
>
> The MH2 mic PTT may be getting caught in the
> rubber surround. It is easy to undo the cover.
> Note that the PTT button only fits one-way, there
> is a cut away slide which fits onto the switch.
>
> For my own use the mic insert had a tad
> to much bass, it has been slightly modded here to
> suit.
>
> regards
>
> Paul
> zl1ajy
> --
> View this message in context: http://elecraft.365791.n2.nabble.com/MH2-Microphone-Issue-tp5106621p5107093.html
> Sent from the Elecraft mailing list archive at Nabble.com.
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

Mike Reublin

Re: MH2 Microphone Issue

juergen wrote:
> Hi Paul
>
> What are your mods? Did you just use a capacitor to roll off the bass?
>
> Someone once told me that the Heil HC5 is sound transducer that was very common on PC motherboards. I lost the web link of the manufacturer, which is a pity since the HC5 seems to produce good audio on just about every radio that I have used. The only problem is that you cant buy the HC5 cartridge anymore.
>
>
> John
>
Have you asked Heil at [hidden email] <mailto:[hidden email]>

73, Mike NF4L

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Joe Subich, W4TV-4

Re: MH2 Microphone Issue

> Have you asked Heil

Yes. Heil will no longer sell the "bare" elements. One must
purchase a D-104 upgrade kit in order to get the element. In
addition, Heil will not sell replacement "clamshells" for the
original Proset mic boom for repair purposes.

In spite of their claims, Heil do not care about "customer
service." The cost to repair a damaged ProSet is more than
replacing it with a Yamaha CM-500 and the ProSet would have
to be shipped to Heil rather than allow the user to make a
relatively simple change of mic element and housing.

73,

... Joe, W4TV

On 5/27/2010 9:54 AM, Mike wrote:

> juergen wrote:
>> Hi Paul
>>
>> What are your mods? Did you just use a capacitor to roll off the
>> bass?
>>
>> Someone once told me that the Heil HC5 is sound transducer that was
>> very common on PC motherboards. I lost the web link of the
>> manufacturer, which is a pity since the HC5 seems to produce good
>> audio on just about every radio that I have used. The only problem
>> is that you cant buy the HC5 cartridge anymore.
>>
>>
>> John
>>
> Have you asked Heil at [hidden email]<mailto:[hidden email]>
>
> 73, Mike NF4L
>
> ______________________________________________________________
> Elecraft mailing list Home:
> http://mailman.qth.net/mailman/listinfo/elecraft Help:
> http://mailman.qth.net/mmfaq.htm Post:
> mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net Please help support this
> email list: http://www.qsl.net/donate.html
>

Mike Reublin

Re: MH2 Microphone Issue

Well durn! I saw that kit, but it didn't say which element it was.
There's no way to order from their website either AFAICT. I needed some
of the foam pads that go inside the Pro-Set ear muffs, and had to do a
phone order. I now have the CM-500 on the K3 and the Pr0-Set on the
backup PRO II.

So the real downside of dealing with Elecraft is we can so easily get
used to great customer service. :-P

73, Mike NF4L

Joe Subich, W4TV wrote:

> > Have you asked Heil
>
> Yes. Heil will no longer sell the "bare" elements. One must
> purchase a D-104 upgrade kit in order to get the element. In
> addition, Heil will not sell replacement "clamshells" for the
> original Proset mic boom for repair purposes.
>
> In spite of their claims, Heil do not care about "customer
> service." The cost to repair a damaged ProSet is more than
> replacing it with a Yamaha CM-500 and the ProSet would have
> to be shipped to Heil rather than allow the user to make a
> relatively simple change of mic element and housing.
>
> 73,
>
> ... Joe, W4TV
>
> On 5/27/2010 9:54 AM, Mike wrote:
>
>> juergen wrote:
>>
>>> Hi Paul
>>>
>>> What are your mods? Did you just use a capacitor to roll off the
>>> bass?
>>>
>>> Someone once told me that the Heil HC5 is sound transducer that was
>>> very common on PC motherboards. I lost the web link of the
>>> manufacturer, which is a pity since the HC5 seems to produce good
>>> audio on just about every radio that I have used. The only problem
>>> is that you cant buy the HC5 cartridge anymore.
>>>
>>>
>>> John
>>>
>>>
>> Have you asked Heil at [hidden email]<mailto:[hidden email]>
>>
>> 73, Mike NF4L
>>
>> _____________________________________________________________

Stephen Prior

Re: MH2 Microphone Issue

In reply to this post by Jeff Cochrane - VK4XA

Jeff

At the suggestion of Ian GM3SEK, I removed the spring under the ptt and cut
a bit off it before stretching back to its original length. It was a bit
fiddly but not difficult. Dropped it more than once!

The ptt is now much easier to use but as others have remarked, it has no
positive tactile feedback - it needs a click or similar. A shame, since the
quality of the audio is very good, although my voice prefers the MD2.

73 Stephen G4SJP

On 27/05/2010 03:08, "Jeff Cochrane - VK4BOF" <[hidden email]>
wrote:

>
> G'day everyone!
>
> First of all,
> After having given my K3 its first HF hitout this last weekend for our (Myself
> - VK4BOF, Gary - VK4FD & Dale - VK4DMC) mini dxpedition for the World Flora &
> Fauna at Undara Lava Tubes National Park in North Queensland, Australia I must
> say that I am more than impressed with my new K3.
>
> It performed flawlessly and was a real pleasure to use, the MH2 microphone is
> however another matter.
>
> Whilst its transmitted audio quality is excellent it appears that you must be
> a 400lb gorilla to use the damned thing, the TX button is so stiff to use. :-)
>
> And even when you get the button in, it must be only barely making contact
> that as soon as you relieve any pressure at all from the button, the radio
> goes back to RX mode.
>
> Does anyone else have this issue?
>
> Jeff Cochrane
> VK4BOF
> Innisfail QLD
> Australia
> Elecraft K3 #4257
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>