6400 .. 1/8 Mic connector only?

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Is this right,  the new radios only have 1 mic connector and its a 1/8 inch connector?
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Dave Dave

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Posted 2 years ago

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Clay N9IO

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Correct, only thing I have ever used with my HC4 Heil cartridge.

A couple of my friends are XLR users, easy to adapt.
I am sure flex will have an adapter ready soon.
I found one quickly at a vendor I use at work
http://www.fullcompass.com/prod/068827-Hosa-MIT-156
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Mike W9OJ

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That adapter converts balanced mic to unbalanced input and also contains a transformer to step 600 Ohm mic to 2500 Ohm input.

http://hosatech.com/product/mit-156/
(Edited)
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Bill -VA3WTB

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Yes, electrically it is an XLR connection. People are thinking a right angle plug is best in order to take the wight off the plug.

And check out the post, microphone connection on the 6600 down the board
(Edited)
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Clay N9IO

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Right angle definitely the way to go Bill.
Also, see the URL link in @James Whiteway's comment below.
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K3SF

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For the new 6400/6600, what happens when you plug Heil headset which has 1/8" mono plug  for the mic output in to the 6400/6600 mic input??    Also, what type of adapter will be needed for this situation?
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Clay N9IO

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Yep you're right Mike.  I got the 600 ohm 1/8" part right.
Like i said, not an XLR user but I'm sure the proper adapter for the mic of your choice is available.

I too will be adapting the 1/8" as Bill said to keep the strain off the connector in the radio.
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Dave Dave

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Everyone missed what I see as a problem, a 1/8 connector should never be used on something that gets pulled, its simply too weak. A L connector that barely sticks out might last a while.

I can only assume Flex saved .03 a radio by using it but with flex still not having something so BASIC as Squelch I cant say I'm surprised.
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Michael Coslo

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I would prefer a 1/4 inch over 1/8th inch, but remember there is always some compromise. The mic I have plugged in right now is 1/8th inch. So I have to use an adapter. So I'm using pigtails and adapters because my microphones aren't all the same. 

As for the squelch, I'm surprised that anyone uses them. I only use them on my FM HT's and Car radio.  Even Icom uses a combo squelch RF gain knob that most of us switch to be RF gain only. But different strokes for different folks. 
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Clay N9IO

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Here is a link posted a little while ago for a right angle 1/8" to XLR.
http://www.guitarcenter.com/Hosa/Stereo-35mm-Male-TRS-Right-Angle-to-XLR-Female-Microphone-Patch-Cab...

The post is
https://community.flexradio.com/flexradio/topics/microphone-connection-on-the-flex-6600
I like Ken NM9P's comment, makes most sense.
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James Whiteway

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Here's a very informative read on the subject of audio connectors (XLR, TRS and others) and their
proper use to avoid ground loops.
 http://www.rane.com/note110.html

Since the rear connector on the new radios is a "pseudo balanced" connector, it might be a good idea for all of us that are considering purchasing the new radios and wanting to continue to use our current microphones ( I have a Heil PRO 781) to read this article.
james
WD5GWY
 
(Edited)
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Clay N9IO

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James that is the best illustration I have ever seen on the subject.
This is a must read.  Thanks.
(Edited)