<div dir="ltr"><div class="gmail_default" style="font-size:large;color:rgb(0,0,255)">Hello, folks!<br><br></div><div class="gmail_default" style="font-size:large;color:rgb(0,0,255)">I love my SB-104A, great dependable rig. I have made many of the board mods recommended by Kees, K5BCQ and they've helped a lot. My rig is an SB-104 upgraded with the 'A' kit before I acquired it a few years ago.<br>
<br></div><div class="gmail_default" style="font-size:large;color:rgb(0,0,255)">However, one thing still annoys me: on any band that's fairly busy (40M daytime for a typical example), there's a hash noise that runs underneath everything, a baseline noise. And, also, often I get an audio and S-Meter pumping which sounds just like a real wide station 5kHz away; this pumping is there across the band almost as if there's some strong-signal front-end overload.<br>
<br></div><div class="gmail_default" style="font-size:large;color:rgb(0,0,255)">By immediate comparison, I have my old Hallicrafters SR-400A rig. Has a really quiet receiver noise floor. The noise in the Heath isn't there when I switch to the Halli.<br>
<br></div><div class="gmail_default" style="font-size:large;color:rgb(0,0,255)">There must be some mod I have missed somewhere for the RX/Front End board to help quiet this down. Does anyone on the List have any recommendations for me? I'd surely appreciate some help with this.<br>
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73,</div><br><br></span></font></span></div><span style="font-family:arial,helvetica,sans-serif"><font size="4"><span style="color:rgb(0,0,255)"><div class="gmail_default" style="font-size:large;color:rgb(0,0,255);display:inline">
Sandy AC1Y</div><br><br>Alexander N. Gerli, Sr.<br></span></font></span></div><span style="font-family:arial,helvetica,sans-serif"><font size="4"><span style="color:rgb(0,0,255)">548 Allred Mill Road<br></span></font></span></div>
<span style="font-family:arial,helvetica,sans-serif"><font size="4"><span style="color:rgb(0,0,255)">Mount Airy, NC 27030-2202<br><br></span></font></span></div><span style="font-family:arial,helvetica,sans-serif"><font size="4"><span style="color:rgb(0,0,255)">Scotsmen walk about 900 miles each year.<br>
</span></font></span></div><span style="font-family:arial,helvetica,sans-serif"><font size="4"><span style="color:rgb(0,0,255)">A Scotsman drinks around 45 gallons of Whisky a year.<br></span></font></span></div><font size="4"><font size="4"><font size="4"><font size="4"><font size="4"><font size="4"><font size="4"><font size="4"><font size="4"><font size="4"><font size="4"><font size="4"><span style="font-family:arial,helvetica,sans-serif"><span style="color:rgb(0,0,255)">Scotsmen get about 20 Miles Per Gallon.</span></span><br>
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