Microphone connection on 6400

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Explain the Microphone connection on the 6400, and is there a Microphone supplied?
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Rick

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Posted 1 year ago

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Tim - W4TME, Customer Experience Manager

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Official Response
FYI, this and other information is covered in the New Product FAQ
http://www.flexradio.com/downloads/new_products_faq_v1-2-pdf/

What kind of adapter will I need to hookup a microphone to my new FLEX 6400/6400M/6600/6600M?
The radio uses a 3.5mm (1/8-inch) TRS plug for the microphone. We will have optional adapters
available when we deliver the radio (no current pricing available).

Will a microphone be included with the radio?
No. You can use your current dynamic or condenser microphone with the appropriate adapter. The
connection is a 3.5mm (1/8-inch) TRS jack. It can be used in either pseudo-balanced or unbalanced modes.
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Rick

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Thanks Tim
Quick reply
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Tim - W4TME, Customer Experience Manager

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No problem.
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K2CB Eric Dobrowansky

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Will the one TRS connector handle both tx audio (tip) and ptt (ring), or will the ptt require a second connection?
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Tim - W4TME, Customer Experience Manager

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The mic connector is a pseudo bananced connector.
Tip=(+)
Ring=(-)
Sleeve=(gnd)

PTT is not handled using the mic connector, that is done via the RCA PTT connector.
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Joe N9VX

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I saw a post stating the Flex-6600/M will have a 1/4" TRS audio in jack also, will the Flex-6400 have this jack?
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Tim - W4TME, Customer Experience Manager

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No, it will not.
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Rick

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Seems like bigger would be better, less fragile. ..every body can't afford the "M" but would like dependable.
Rick, kd4dra
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Joe N9VX

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The Apache Labs SDR radios use the 1/8" mic jack and is disliked by all the owners I have talked to including me. It is not strong enough to support ferrites on the cord and a coiled cord on a hand mic will be a disaster. I have had problems with the 1/8" speaker jack in the Flex 1500, had to take it apart and bend the contacts to make connection. I hate to seen a great piece hardware, the Flex 6400,  have this obvious flaw.
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Neil D Friedman N3DF

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I have found using a coiled hand mic cord with a 1/8 inch connector to be a non-issue with my Elecraft KX2.