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<HTML><HEAD><TITLE>Re: [hpsdr] Mercury as spectrum analyzer?</TITLE>
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<DIV><FONT face=Arial size=2>Hi Dieter,</FONT></DIV>
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<DIV><FONT face=Arial size=2>You are correct that John Melton's GHPSDR
software for Linux</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>< <A
href="http://javaguifordttsp.blogspot.com/">http://javaguifordttsp.blogspot.com/</A> ></FONT></DIV>
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<DIV><FONT face=Arial size=2>provides both a conventional and 0-55MHz
bandscope. We will shortly be releasing a simple Windows console program
called K.I.S.S. Konsole (KK) that also provides dual bandscopes. At the
moment KK displays 0-55MHz in one chunk but in the future, with suitable
software additions, we intend to display any centre frequency and
bandwidth within this range. </FONT></DIV>
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<DIV><FONT face=Arial size=2>Using KK as a base there is also very good
potential to use it with Penelope as a spectrum analyser and tracking
generator. </FONT></DIV>
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<DIV><FONT face=Arial size=2>I do have a breadboard prototype of Cyclops
working and have a volunteer ready to lay out the PCB. We are
presently evaluating the possibility of using a TV tuner IC as a single chip
spectrum analyser prior to going ahead with the PCB layout. </FONT></DIV>
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<DIV><FONT face=Arial size=2>The main issue I have with Cyclops is leakage
round the 1.03GHz first IF filters - this will need some careful PCB
layout/screening. We are also investigating removing images caused by the
filter leakage in software. </FONT></DIV>
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<DIV><FONT face=Arial size=2>More projects than time available at the
moment!</FONT></DIV>
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<DIV><FONT face=Arial size=2>73's Phil...VK6APH </FONT></DIV>
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