Flex 6300 Transmit audio settings

John Watson W4JCW

I am a long time Kenwood TS-870 user as we all know how the transmit audio is on the 870's!  I am using an Electrovoice RE-20 and want to get as close to the same quality/warm sounding xmit audio...recommendations?

Don Stefanik

I have the RE27ND on my 6300.
I get excellent audio reports.

VA3KBC

63:-10
125:-10
250:+2
500:-5
1K:0
2K:+8
4K+8
8K:0

Tim - W4TME

There is a procedure for setting your audio in the SmartSDR for Windows Software User's Guide that is very helpful.

KC7ES

John, How did you interface the RE20 to the 6300? Did you use a special cable designed to math the balanced mic output to the 6300 front mic connector?

Rob Fissel

If I had to take a guess, he is using an external mic preamp. The RE20 (and 27 for that matter) needs a LOT of gain to get good hiss-free audio - more gain than I'm guessing the 6xxx can supply. 

Tim - W4TME

Not true if using the 8-pin Foster connector on the front of the radio with the Heli cable for interfacing with a balanced mic (3-pin XLR).  The default mic profile settings for the PR781 provides a good starting point for a RE20.  I set one up for a customer a few weeks ago and only a minor tweak of the EQ and setting the gain level was all that was needed.

Don Stefanik

MIC GAIN : 40
PROC DX+
8 PIN YAESU HEIL CABLE. 

Rob Fissel

Interesting, Tim. I've never come across a preamp that provided a clean signal for the RE20 for under $100. Nice to know that the 6300's mic preamp has some punch to it. 

John Watson W4JCW

Thanks for the input guys...no preamp used or needed. I am currently using the PR781 ESSB settings and am getting great results...if anyone else is using the RE-20 (not the RE-27) with different settings please let me know your view. I did bring the bottom end down to 30 on the ESSB settngs making it just a little warmer...