RE: SSB Transmit Audio

[Nicolas Pike]

Hi,

I have recently completed K2 4039 along with the "K2" Heil Headset, SSB,
160m, ATU and Battery options. I have made a few (6) contacts on SSB.
Yesterday we tried a contact on 20m just across town to a good pal of mine,
and an experienced ham, to really check out the sound of the radio/audio. We
worked through the Mic gain and compression options, but he advised that my
audio was bassy and lacked top end / punch. His audio sounded perfect (Well
to me at least!!)
Ah.. This was a little disappointing.. But we needed to know. So, now the
only other thing I can think to change is the BFO transmit offset? Is this a
place to start??(!) Or what else might I have missed?

Thanks!!!!!

Regards
Nicolas (In search of better audio!)
www.m1hog.com


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[Don Wilhelm-2]

Nicholas,

If you simply set the BFO as indicated in the manual, the answer is YES you
should crank up Spectrogram and adjust the transmit BFOs (FL1) for SSB - and
CW too if you have not done so.
Take a look at my website (www.qsl.net/w3fpr) article on K2 Dial Calibration
for detailed information.  QSL.net has been having some difficulties, but
keep trying and you will eventually succeed.

73,
Don W3FPR

----- Original Message -----
>
> I have recently completed K2 4039 along with the "K2" Heil Headset, SSB,
> 160m, ATU and Battery options. I have made a few (6) contacts on SSB.
> Yesterday we tried a contact on 20m just across town to a good pal of
mine,
> and an experienced ham, to really check out the sound of the radio/audio.
We
> worked through the Mic gain and compression options, but he advised that
my
> audio was bassy and lacked top end / punch. His audio sounded perfect
(Well
> to me at least!!)
> Ah.. This was a little disappointing.. But we needed to know. So, now the
> only other thing I can think to change is the BFO transmit offset? Is this
a
> place to start??(!) Or what else might I have missed?
>



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[Stuart Rohre]

You can roll off low end by decreasing the coupling capacitor in series with
the mike hot lead, or adding another to the mike alone to effectively do the
same.

You may need to change the gain of the mike preamp to optimize for the Heil
mike.
72,
Stuart
K5KVH


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