[Elecraft] Voice is clipped K3s

[Joe Subich, W4TV]

The SM58 is representative of a wide variety of the hand-held
"vocal" mics by many manufacturers.  It would not surprise me
if they didn't use a common element - probably manufactured
off shore - which means the read difference would be in mounting
and the wind screen which would effect handling/wind noise and
not particularly impact the response.

 > For my SM58 and my K3S I use the following:
 >
 > 50 Hz   -16
 > 100 Hz  -16
 > 200 Hz  - 9
 > 400 Hz    0
 > 800 Hz    0
 > 1600 Hz   0
 > 2400 Hz  +3
 > 3200Hz   +6

For my voice, I like to set 800 Hz at -10 dB (not much energy
in that band so I reduce the room noise) and then +3/+5/+6 at
1600/2400/3200 (a smooth 3 dB/octave preemphasis).  For "DX",
the +3/+5/+6 can be pushed to +5/+9/+10 (5 dB/octave) to
emulate the HC4.

73,

    ... Joe, W4TV


On 2018-10-10 3:20 PM, Bob McGraw K4TAX wrote:
> For my SM58 and my K3S I use the following:
> 
> 50 Hz    -16
> 
> 100 Hz  -16
> 
> 200 Hz  - 9
> 
> 400 Hz    0
> 
> 800 Hz     0
> 
> 1600 Hz   0
> 
> 2400 Hz  +3
> 
> 3200Hz   +6
> 
> The Behringer XM8500 dynamic mike gives identical performance and it 
> costs only $20.    Heard one and just had to try it.  I can swap between 
> the SM58 and the XM8500 and folks that I rag chew with on a regular 
> basis can't tell the difference.   Even the machining pattern on the 
> base is the same on both mikes.   And in looking a the elements, they 
> too appear to be the same.
> 
> 73
> 
> Bob, K4TAX
> 
> 
> On 10/10/2018 1:07 PM, Joe Subich, W4TV wrote:
>>
>> If one has a flat "wide band" mic (electret) the typical TX EQ settings
>> needed to emulate the Heil HC4 (DX)/HC5 elements, a couple classic
>> "communications" mics and a typical dynamic "vocal" mic (SM58) are:
>>
>>                                   -- SHURE --
>>            HC4     HC5    D-104   444    SM58
>>    50      -16     -16     -16    -16      -8
>>   100      -16     -16     -10    -16      -2
>>   200      -16      -3      -4     -7       0
>>   400       -4      -2      -3     -2      -1
>>   800       -0      -2      -1      0      -1
>>  1600       +5      +2      +3     +3      +0
>>  2400      +10      +5      +9     +7      +1
>>  3200      +10      +6     +13    +12      +4
>>
>> Thanks to: <https://owenduffy.net/audio/legend/index.htm> for the
>> HC4/HC5/D-104/444 response curves.   The SM58 data comes from
>> Shure's data sheet.
>>
>> 73,
>>
>>    ... Joe, W4TV
>>
>>
>> On 2018-10-10 11:29 AM, Don Wilhelm wrote:
>>>
>>> As Bob K4TAX has pointed out and K9YC has long advocated, set the 
>>> lower 2 bands of TX EQ to the lowest levels and set the 3rd band down 
>>> a bit as well - that will increase your "talk power" while not 
>>> wasting power trying to transmit those low frequencies which are not 
>>> needed for intelligibility.  If you are into ESSB, you may differ, 
>>> but ham radio is not HI-FI in my opinion, it is about communications 
>>> effectiveness.
>>>
>>
>> The typical