What a difference a small amount of treble makes in our Icom transceivers. Adjusting the treble +2 or -2 can make a noticeable difference. Below I have three different microphones and comparisons between treble settings. I included the BM800, SM-50 and Yamaha CM500 audio samples. Have a listen and tell me what you think. I use a Y cable that came off E-Bay, a foot switch and a Samson mic boom.
Icom 7610 and Icom 7300 Tone Control
In these two transceivers the microphone treble and bass can be adjusted for RX and TX. See the Icom 7300 Full Manual pg 12-3. The adjustments can be made for the following modes: AM, FM, SSB and even CW and RTTY on receive.
My SSB RX is using HPF/LPF 100-2400 Hz. My SSB TX Treble is +4.
Compromises with Hearing and/or Hearing Aids
Important information from a fellow Ham and food for thought.
One thing that I believe very few of us middle aged and older hams think about is the “last mile” of that audio link, our ears!
To not put too fine a point on it, is your hearing “flat”? Do you use hearing aids? If not, have you been tested?
I do use hearing aids, and I noticed that your demo with TREBLE +4 sounds too bright when I am wearing them, but about right when I am not. With the aids your +2 setting sounded better. – W0FAA
Samples of Microphone Treble
Yamaha CM500 Comp 3 TBW Wide Bass -2 Treble +2
Yamaha CM500 Comp 3 TBW Wide Bass -2 Treble +4
SM-50 Comp 3 TBW Wide Bass -2 Treble +2
SM-50 Comp 3 TBW Wide Bass -2 Treble +4
BM800 Comp 3 TBW Wide Bass -2 Treble +2
BM800 Comp 3 TBW Wide Bass -2 Treble +4
Post your thoughts below in the comment section.
If you have any questions, comments or solutions, please comment below. I prefer the comment section here or in YouTube over e-mail because your comments and questions will help others as well.