-----Original Message-----
From: Jim Brown <k9yc@audiosystemsgroup.com>
To: cq-contest <cq-contest@contesting.com>
Sent: Wed, 4 Mar 2015 2:17
Subject: Re: [CQ-Contest] Boom for Bose Headset
For these reasons, it's important to...
2) Use settings in your rig to get rid of as much low frequency
content as you can. The lows burn TX power, but make no contribution to speech
intelligibility. I set up my K3 TXEQ for max cut of the three lowest
octave bands (50, 100, 200 Hz) and 4-6 dB cut of the 400 Hz band. When I
ran FT1000MPs, I set the audio bandwidth for 400-2,600 Hz.
IMO, ALL mics and radios should kill those lower three octaves, and what
is needed for the 400 Hz band and on the high end will depend on the
voice and the mic.
Oh, sweet music, Jim. That you have said this, folks may take note. A lot of
'runners' already have, of course, but a lot of S+P audio i.e from 'callers' is
getting woeful. The
less operator Qs, the worse it is. You can hear this in the frequency of
'repeat' requests these days, CQWW especially - ARRL, somewhat less so.
>From the earliest days of SSB, the hams at Shure
designed a mic with an HF peak around 3 kHz to compensate the rolloff of
the SSB filter, and most ham mics do that to some degree.
Alas, DID.
When I used a pro mic with my radios, I had to add that peak with EQ.
There's still time to make those adjustments in time for the weekend, folks!
Many thanks, Jim.
Al G0XBV
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