[linrad] signal strength

[Jim_McMasters@xxxxxxxxxxxxxxx]

I have Linrad processing 12Khz of IF output from a modified TS-2000. It 
plays very well using W3SZ's recently posted WCW and SSB parms with the 
exception that I am using 48K sample rate input and 8K sample rate output.

My hardware config is posted in the user data bank but basically consists 
of a 2.4Ghz chip, 512Meg of ram, Delta 44, SB16, OSS drivers, RH9.0

I am copying very very weak CW beacons never before possible. The binaural 
mode to me is incredible. The dumb noise blanker is magic (smart not yet 
calibrated). I live on the edge of a metroplex with a population of 4.5 
million and full of industry.

I still need another 1000 hours to re-read everything and try to better 
use the application but I wanted to ask this question now.

To get a rough idea of S/N for the arriving target signal, is it safe to 
simply compare the middle S meter value to the bottom S meter value 
(subtract the values) and is this value in decibels? I have read the 
definitions for these items and I understand what Leif says to do with a 
1Khz sample to determine noise floor but is this shortcut valid?

Jim, KM5PO, EM12ko
TS-2000 mod, etc is at http://207.5.45.45------------=_1130369028-3825-1
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<br><font size=2 face="sans-serif">I have Linrad processing 12Khz of IF
output from a modified TS-2000. It plays very well using W3SZ's recently
posted WCW and SSB parms with the exception that I am using 48K sample
rate input and 8K sample rate output.</font>
<br>
<br><font size=2 face="sans-serif">My hardware config is posted in the
user data bank but basically consists of a 2.4Ghz chip, 512Meg of ram,
Delta 44, SB16, OSS drivers, RH9.0</font>
<br>
<br><font size=2 face="sans-serif">I am copying very very weak CW beacons
never before possible. The binaural mode to me is incredible. The dumb
noise blanker is magic (smart not yet calibrated). I live on the edge of
a metroplex with a population of 4.5 million and full of industry.</font>
<br>
<br><font size=2 face="sans-serif">I still need another 1000 hours to re-read
everything and try to better use the application but I wanted to ask this
question now.</font>
<br>
<br><font size=2 face="sans-serif">To get a rough idea of S/N for the arriving
target signal, is it safe to simply compare the middle S meter value to
the bottom S meter value (subtract the values) and is this value in decibels?
I have read the definitions for these items and I understand what Leif
says to do with a 1Khz sample to determine noise floor but is this shortcut
valid?</font>
<br>
<br><font size=2 face="sans-serif">Jim, KM5PO, EM12ko</font>
<br><font size=2 face="sans-serif">TS-2000 mod, etc is at http://207.5.45.45</font>------------=_1130369028-3825-1--

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