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<body class='hmmessage'><div dir='ltr'>Recently picked up a very nice sb-300. It's the one I asked for help with the bandswitch shaft. I got it realigned<BR>and tonight I plugged in the receiver and connected an antenna. I am receiving signals just fine, but am having trouble<BR>with the AGC circuit I think. The S-meter is not working on any position the AGC switch is on. When I turn the switch to<BR>off, or no AGC, I do notice a change in signal strength and the meter pegs to the left. On fast or slow, there is no meter<BR>movement at all, it just sits at zero.<BR> <BR>Any suggestions? I only have a partial manual, so I'm somewhat limited because of that.<br> <BR><div><div id="SkyDrivePlaceholder"></div><hr id="stopSpelling">Date: Mon, 11 Mar 2013 18:10:40 -0700<br>From: gzook@yahoo.com<br>To: pettit@ti.com; heath@puck.nether.net<br>Subject: Re: [Heath] SB 300 help needed<br><br><div style="color: rgb(0, 0, 0); font-family: arial, helvetica, sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);"><div><span>The band switch in the SB-300 has 8-positions. 1 each for 80-meters, 40-meters, 20-meters, 15-meters, and 4-positions for 500 kHz segments on the 10-meter band. The SB-301 has an additional band switch position for WWV at 15 MHz.</span></div><div></div><div> </div><div>Glen, K9STH<br><br></div><div>Website: http://k9sth.com<br> <div style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"> <div style='font-family: "times new roman", "new york", times, serif; font-size: 12pt;'> <div dir="ltr"> <font size="2" face="Arial"> <hr SIZE="1"> <b><span style="font-weight: bold;">From:</span></b> Dick Pettit <pettit@ti.com><br> <b><span style="font-weight: bold;">To:</span></b> heath@puck.nether.net <br> <b><span style="font-weight: bold;">Sent:</span></b> Monday, March 11, 2013 12:00 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [Heath] SB 300 help needed<br> </font> </div> <br>
I believe the bandswitch had 5 positions (80, 40, 20, 15 and 10) and doesn't<br>rotate any further than that. Set the shaft to far counter clockwise and put<br>the knob on it pointing to the 80 mater position.<br><br><br> </div> </div> </div></div><br>_______________________________________________
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