KX3 - Microphone idea

[Steve KC8QVO]

I am looking in to the 4 circuit phone plugs and thinking about making my own microphone. Heil used to have the HC-4 and HC-5 elements available by themselves. I thought this would make for a neat mic combined with a compact enclosure.

Has anyone had experience with wiring up the Heil elements? Have you used the elements in anything other than a "standard" mic case? IE - film can (if it fits), pill bottle, or other odds and ends?

I have a speaker mic for my HT that I could possibly convert as well, not sure how well it would work. I'd like to keep it functional for the HT though so an adapter would need to be made to get it in to the KX3. I could route the audio in to it for a true speaker mic as well.

This is going to be a lot of fun! Now, when is it going to show up in my mailbox??? :)

[Joe Subich, W4TV-4]

On 1/12/2012 8:16 PM, Steve KC8QVO wrote:
> I am looking in to the 4 circuit phone plugs and thinking about
> making my own microphone. Heil used to have the HC-4 and HC-5
> elements available by themselves. I thought this would make for a
> neat mic combined with a compact enclosure.

Fuggedabutit ... Heil will not sell "bare" elements any more as I
found out when the HC5 element went bad in my Proset.

If you want to build your own mic, get one of the inexpensive electret
elements off the web or from Radio Shack.  Let the KX3 provide bias and
assuming it has EQ facilities similar to the K3, use the TX EQ to roll
off the bottom two or three bands and boost the top three by 3, 5 and 6
dB respectively and you will have outstanding audio.

73,

    ... Joe, W4TV


On 1/12/2012 8:16 PM, Steve KC8QVO wrote:

> I am looking in to the 4 circuit phone plugs and thinking about making my own
> microphone. Heil used to have the HC-4 and HC-5 elements available by
> themselves. I thought this would make for a neat mic combined with a compact
> enclosure.
>
> Has anyone had experience with wiring up the Heil elements? Have you used
> the elements in anything other than a "standard" mic case? IE - film can (if
> it fits), pill bottle, or other odds and ends?
>
> I have a speaker mic for my HT that I could possibly convert as well, not
> sure how well it would work. I'd like to keep it functional for the HT
> though so an adapter would need to be made to get it in to the KX3. I could
> route the audio in to it for a true speaker mic as well.
>
> This is going to be a lot of fun! Now, when is it going to show up in my
> mailbox??? :)
>
> --
> View this message in context: http://elecraft.365791.n2.nabble.com/KX3-Microphone-idea-tp7182487p7182487.html
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[Rick Stealey]

I admit I know almost nothing about microphones.  But I wonder if there are other
characteristics relating to the element that might be important in addition to frequency
response, such as the amount of sound pressure a mic can take before it distorts.
i.e. if a contester is close talking a boom mic/headset combo, and screaming loudly
will some mics take it and others turn to mush?  Because they DO close talk their
mics and they DO scream in their excitment.

Rick  K2XT


     
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[Ignacy]

I used HC5 just wrapped in foam. Crisp audio and no equalization needed.
Now I use CM500 with equalization. Almost the same sound but much higher level of background noise. Only important with heavy processing.
Ignacy, NO9E

[Jim Brown-10]

On 1/13/2012 6:13 PM, Ignacy wrote:
> Almost the same sound but much higher
> level of background noise. Only important with heavy processing.

Turn down the microphone gain.

73, Jim K9YC
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