[Elecraft] GM5 driving the K3 poorly

[Ian J Maude]

Dan Schieler wrote:
> I just received my K3 s/n 901 with MCU FW 1.96 and
> 1.73 for the dsp.  I am using a Heil Goldline GM5 mic
> in the narrow setting.  
I use the mic in both settings with the EQ virtually flat. Make sure to 
set Config: TXG VCE to 3.0 and you should be fine. I use FP .H and 
settings of mic gain at 25 and comp 20 for the wide element with 
fantastic reports.

Ian
> Power output is just fine on
> CW in all bands.  However on SSB, I can’t seem to get
> much power out unless I whistle very loud into the mic
> on the narrow setting...on the wide setting it is even
> worse.  I am reading the bar graph on the radio, not
> an analog guage on my tuner…I went thru the setup for
> ALC, mic gain, compression and got the bars in the
> right place but it still doesn’t give me more than 10w
> in a normal or even loud voice with the power set at
> 100Watts..  Maxing out the mic and compression helps a
> bit, but I can imagine it may not be too pleasant to
> listen to on the other end…dabbling with the TXG VCE
> and pushing it to 2db helps a bit...before someone
> says that you can't measure SSB output on the bar
> graph or analog meter, my reference is my K2 with the
> HM36 Icom mic that at similar power settings shows
> much higher power output than the K3...even trying to
> drive my AL811H amplifier with the K3 set to 70W and
> loud talking only gets me to about 120W output where
> the K2 at 70W SSB peaks over 600 Watts using the tuner
> wattmeter....something isn't going right with this K3
> and GM5 combo...any ideas?
>
> thx
> K5GUS
>
>
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-- 

Ian J Maude, G0VGS
SysOp GB7MBC DX Cluster
Member RSGB, GQRP
K2 #4044 |K3 #455