Balanced Mic Input Difference 6500 vs 6600

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I have been extremely happy with the balanced mic input on my 6500. I am using a PR781 Heil mic directly connected to the balanced mic input on the 6500. After seeing the 6600 at Dayton, I have place my order for the 6600. However, I did notice that the balanced mic input connector is no longer offered. A call to Flex revealed that the mic input is now a 3.5mm jack. I am told with an adapter, which Flex will now add to my order, will allow me to connect my PR781 cable. I was also told that the new input keeps the balanced input all the way to the circuit board input where one side is grounded. Is this the same circuit design on the 6500 or is the 6500 a true balanced input? If this mic input circuit has indeed changed on the 6600, are there any RF interference concerns with the new design? Will the Ver 2 code still show a balanced mic input?
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Mark NS9N

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Posted 1 year ago

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Tim - W4TME, Customer Experience Manager

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Mark,

The mic input on the back is a pseudo balanced audio input that is electrically equivalent to the one in the 6500/6700.  The only difference is that it is a 1/8" TRS jack and you can enable a +5 VDC bias on the MIC+ line to accommodate condenser mic elements.  So you can use your dynamic mic or a computer headset type mic on the same jack.

I do not know for certain that the input will be labeled as balanced on the SSDR console for the 6400/6600.  I suspect it will be "Mic" and you have the option to enable the mic bias or not.  You can use unbalanced mics with the same jack by changing the input wiring to unbalanced rather than balanced.
(Edited)
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Elan Paim

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hello Tim 
thank you kind okay i see it will not say BL only Mic . 
what about the gps on the back antenna connection is there any GPS built in >/?
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Tim - W4TME, Customer Experience Manager

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Norm - The 6400s and 6500s have the same Remote On feature found on the 6300, 6500 and 6700s.

Elan - the connectors are installed for the optional GPSDO module.
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Larry - WA7LZO

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Hi Tim, 

This may be premature for me to ask this at this juncture, but do you know how the 6600M might handle the new high end Yaesu M-1 mic, which is simultaneously both  a dynamic and condenser mic?

It has user settings so the user can select to configure it as a dynamic mic, or a condenser mic, or a combination of both, at the same time. The latter mode (combo mode) provides the very highest quality frequency response.

Not sure how to wire things up for the 1/8 inch plug going into the 6600M, given this mic's unique arrangement.

Thanks!

Larry
WA7LZO
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Tim - W4TME, Customer Experience Manager

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You are correct, it is a little premature at this juncture to discuss interfacing non-standard "hybrid" type of mics with the new 6400 and 6600.
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Elan Paim

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thank you kind Tim 
73 elan 
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Mike W9OJ

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Is the pseudo-balanced inputs on the new rigs the same as the pseudo-balanced input on the 6300?
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Tim - W4TME, Customer Experience Manager

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Yes.