No the noise does not effect the email. It is digital and as a result you can even reduce power when getting email.
After using HF for a while, you hear past the noise and for even weak stations it will surpprise you what you can hear. Good stations come in over the top of noise. While the RF gain will reduce the noise level it will also reduce the intelligible range of the receiver so be careful with this adjustment.
I have put a lot of free downloads on my site that may help your communications and SSB use. Feel free to down load it. Get to know how the DSC works it is the most powerful source for help.
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