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From: Bob Raide <rjraide@hotmail.com>
To: "rsgb_lf_group@blacksheep.org" <rsgb_lf_group@blacksheep.org>
Date: Sun, 2 Mar 2014 12:35:08 -0500
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Subject: RE: LF: Would slower QRSS help?
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Paul=3B
It appears to me that your 60 second bins has it!  I see A and B very plain=
ly.  Your RX capability is phenomenal!!!
Warren Zeigler told me of your history of VLF receptions. =20
I will be running in QRSS 180 tonight.  If it isn't enough I can go slower =
yet and then carrier for an hour with slight freq switch if nothing else wo=
rks.
Please during transmission send me e mail for any changes you might like me=
 to implement.  Not sure if you can or want to stay up that late but I will=
 do whatever it takes to see your optimum results.
This is only second night on and transmitter still not optimum.  Have tuned=
 input to make and install.  Would like a few more DB before corona takes o=
ver-Bob
=20
> Date: Sun=2C 2 Mar 2014 17:16:42 +0000
> From: vlf0403@abelian.org
> To: rsgb_lf_group@blacksheep.org
> Subject: Re: LF: Would slower QRSS help?
>=20
>  > ... QRSS 60 last night.
>=20
> I guessed wrong and Markus suggests a faster
> spectrogram.   This one is in 60 second bins
>=20
>   http://abelian.org/vlf/tmp/29499_140302h.gif
>=20
> And in 30 second bins
>=20
>   http://abelian.org/vlf/tmp/29499_140302i.gif
>=20
> I don't know if it's any more readable but many
> dots are clear in the 30 second one.
>=20
>  > Would slower be of any help for tonight's transmission?
>=20
> Much.    For detection at the max possible range send pure
> carrier.  To confirm ID=2C change frequency at some point=2C
> 10 mHz or so=2C on the hour.
>=20
> For the slow Morse each doubling of dot length would double
> the brightness of your trace on the spectrogram.  120 should
> put you in the red and 240 would be well into the yellow.
>=20
> Background noise subsided here from about 04:30 so the S/N
> improved for the final 2.5 hours of transmission.  That
> appears to be the European window to aim for.
>=20
> --
> Paul Nicholson
> --
>=20
 		 	   		  =

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<body class=3D'hmmessage'><div dir=3D'ltr'>Paul=3B<BR>It appears to me that=
 your 60 second bins has it!&nbsp=3B I see A and B very plainly.&nbsp=3B Yo=
ur RX capability is&nbsp=3Bphenomenal!!!<BR>Warren Zeigler told me of your =
history of VLF receptions.&nbsp=3B <BR>I will be running in&nbsp=3BQRSS 180=
 tonight.&nbsp=3B If it isn't enough I can go slower yet and then carrier f=
or an hour with slight freq switch if nothing else works.<BR>Please during =
transmission send me e mail for any changes you might like me to implement.=
&nbsp=3B Not sure if you can or want to stay up that late but I will do wha=
tever it takes to see your optimum results.<BR>This is only second night on=
 and transmitter still not optimum.&nbsp=3B Have tuned input to make and in=
stall.&nbsp=3B Would like a few more DB before corona takes over-Bob<br>&nb=
sp=3B<BR><div>&gt=3B Date: Sun=2C 2 Mar 2014 17:16:42 +0000<br>&gt=3B From:=
 vlf0403@abelian.org<br>&gt=3B To: rsgb_lf_group@blacksheep.org<br>&gt=3B S=
ubject: Re: LF: Would slower QRSS help?<br>&gt=3B <br>&gt=3B  &gt=3B ... QR=
SS 60 last night.<br>&gt=3B <br>&gt=3B I guessed wrong and Markus suggests =
a faster<br>&gt=3B spectrogram.   This one is in 60 second bins<br>&gt=3B <=
br>&gt=3B   http://abelian.org/vlf/tmp/29499_140302h.gif<br>&gt=3B <br>&gt=
=3B And in 30 second bins<br>&gt=3B <br>&gt=3B   http://abelian.org/vlf/tmp=
/29499_140302i.gif<br>&gt=3B <br>&gt=3B I don't know if it's any more reada=
ble but many<br>&gt=3B dots are clear in the 30 second one.<br>&gt=3B <br>&=
gt=3B  &gt=3B Would slower be of any help for tonight's transmission?<br>&g=
t=3B <br>&gt=3B Much.    For detection at the max possible range send pure<=
br>&gt=3B carrier.  To confirm ID=2C change frequency at some point=2C<br>&=
gt=3B 10 mHz or so=2C on the hour.<br>&gt=3B <br>&gt=3B For the slow Morse =
each doubling of dot length would double<br>&gt=3B the brightness of your t=
race on the spectrogram.  120 should<br>&gt=3B put you in the red and 240 w=
ould be well into the yellow.<br>&gt=3B <br>&gt=3B Background noise subside=
d here from about 04:30 so the S/N<br>&gt=3B improved for the final 2.5 hou=
rs of transmission.  That<br>&gt=3B appears to be the European window to ai=
m for.<br>&gt=3B <br>&gt=3B --<br>&gt=3B Paul Nicholson<br>&gt=3B --<br>&gt=
=3B <br></div> 		 	   		  </div></body>
</html>=

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