[linrad] Re: Difficulties

[Roger Rehr]

Hi, Leif,

Answers below ;)

Quoting Leif Asbrink <[EMAIL PROTECTED]>:

Hi Roger,

I have always thought that your recordings of the Leonids meteor shower
when you were having lots of powerline noise were excellent test
objects!  I use them for examples here.
Oooh! That is a special case with local powerline noise. Linrad
can take care of that reasonably well and there is not much
I can do to improve with the current structure of Linrad.

OK.  I understand.  Others should check these out ;)

I wanted to put the link here but I can't find it :(

Maybe you can post it?


There are on my website some recordings from July 2003 of 20 14 MHz
with lots of powerline noise that totally covered up some weaker
stations, that could only be copied after processing with Linrad or
Winrad.  But you have already worked on these, as did Alberto.  I don't
have anything tougher than these, although I think they are tougher
than Ram's files from the past 2 weeks.
But I am looking for other kinds of interference. Did you never
have to ask someone to repeat because you could not copy due
to interference of other kinds than powerline noise? While recording:-)
(Splatter, keying clicks or something else?)

Yes...many times; but usually during a contest I am too stupid to 
multitask. So because I am playing with the controls and trying to work 
the station that I can barely hear, I forget to type 'S" and thus never 
get the data saved.  There is another contest this weekend.  Maybe 
there will be lots of noise and I will actually remember to save a file 
[it could happen] ;)


I am also interested in marginal SSB. I could add an adaptive filter
in SSB mode to try to improve S/N.

OK.  I will see what I can find this weekend.  There should be lots of 
splatter to find.  Now if I can just remember to record it.  I will try 
putting lots of reminder post-it notes on my monitor screens that say 
'its the recording, stupid'.  Stay tuned ;)

73,

Roger Rehr W3SZ


Roger Rehr
W3SZ
http://www.nitehawk.com/w3sz


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