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Date: Thu, 30 Jun 2005 20:00:06 EDT
To: rsgb_lf_group@blacksheep.org
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Subject: Re: LF: 756 PRO III on LF?
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<DIV>
<DIV>In a message dated 30/06/2005 21:55:29 GMT Standard Time, 
laurie@g3aqc.freeserve.co.uk writes:</DIV>
<BLOCKQUOTE style="PADDING-LEFT: 0px; MARGIN-LEFT: 0px"><FONT 
  style="BACKGROUND-COLOR: transparent" face=Arial color=#000000 size=2>
  <P><FONT face=Arial size=2>Thanks Laurie. I was playing with a friend's new 
  756 PRO III (he won it at Dayton this year!!) and it seemed very nice down 
  below the BCB but he notices a rise of internal noise from around 250KHz down 
  to 50KHz. The noise is also visible on the scope as a rise in the rx ambient 
  noise floor. I take it that you don't have this problem with 
  yours?</FONT></P></FONT></BLOCKQUOTE></DIV>
<DIV></DIV>
<DIV>==================&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=========================</DIV>
<DIV>&nbsp;</DIV>
<DIV>My original 756 radiates noise from the LCD display. I have to keep open 
feeders and any loop antenna several feet from the radio.</DIV>
<DIV>&nbsp;</DIV>
<DIV>The original 756 has poor performance below 500kHz primarily due to 
transformer design, but also because of the attenuator that is permanently 
switched in for MF / LF reception. Even so, with a pre-amp its a good LF 
receiver due to the flexible DSP and other filtering. </DIV>
<DIV>&nbsp;</DIV>
<DIV>73</DIV>
<DIV>&nbsp;</DIV>
<DIV>David&nbsp; G0MRF</DIV></FONT></BODY></HTML>