[Elecraft] Reduced gain/efficiency in SSB

N7US jim at n7us.net
Thu Dec 16 21:42:21 EST 2010


I have a PR781 and received several unsolicited reports of excellent audio.
I have the TX EQ set so it really doesn't sound much different than an HC-5,
I must admit, as I minimize the extreme lows and emphasize the highs.

The PR781 is not an electret so does not need bias.

Heil now has recommended settings for the K3 on their web site.  It's the
last link at http://www.heilsound.com/amateur/settings/index.htm .

Settings depend on one's voice and how you want to sound.  Here are three
combinations I've tried:
                Prelim   Final   Heil
Mic Gain Range  FP.h     FP.L    FP.L
Mic Gain         30       35	
Comp             20       23	
VOX Gain         15       18	
VOX Delay        15       15	
			
0.05            -16      -12     -12
0.1             -16      -10     -10
0.2             -4       -6      -6
0.4              0       -2      -2
0.8              0        0       0
1.6             +6       +6      +6
2.4             +8       +8      +8
3.2             +8       +10    +10

After all of that, I decided I liked the HC-5 more than the expensive PR781,
which probably makes sense given that my primary interest is DXing.


Jim N7US



-----Original Message-----

Following up on mic gain required, I'd like to inquire as to the
reasonableness of my settings. 

Mic: Heil PR-781
straight into the K3
Mic Level: 55
Mic Bias: High
Compression: 18
TX EQ: modest adjustment center, nothing wild
Audio Reports: "great audio"

Seems like a
higher mic level than most run. It's the same for my Audio Technica
headset. 

Thoughts?

Brian KD0HII





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