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From: Laurence BY3A-KL1X China <hellozerohellozero@hotmail.com>
To: <rsgb_lf_group@blacksheep.org>
Date: Wed, 28 Jan 2009 04:21:49 -0900
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Subject: RE: LF: Re: Re: PROPAGATION WSPR
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Coastal stations are still running, well XSG on A1A is anyway on 522.5 kHz =20=
- Im not sure of the power Shanghai radio puts out but from field measuremen=
ts its probably in the 1Kw range.
=20
Laurence  - stuck in Singapore....








From: g3kevmal@talktalk.net
To: rsgb_lf_group@blacksheep.org
Date: Tue, 27 Jan 2009 18:22:58 +0000
Subject: LF: Re: Re: PROPAGATION WSPR




That is a more sensible power for MF. Coastal stns were running in excess of=
 this power and ships between 1 - 2 kw so whats new.
Radio amateurs are at a disatvantage at present but could handle it, but app=
liance operators NO.
G3KEV
=20
=20

----- Original Message -----=20
From: dave.riley3=20
To: rsgb_lf_group@blacksheep.org=20
Sent: Tuesday, January 27, 2009 4:31 PM
Subject: LF: Re: PROPAGATION WSPR




NEWS FLASH
The NEHRS,Inc. has been granted by the FCC the call letter WNE for MF=20
CW operation on 472 KHz and 500 KHz at a maximum power of 5000 watts.
Hope some of you guys get your T2 license to run the station after=20
construction. As soon as the snow melts and temperatures rise a bit the=20
large vertical will be errected. My QTH can only be temporary so we=20
must find a permanent home ASAP.

73, Steve

WA1HUD

President NEHRS, Inc.
http://nehrs.net/default.aspx

----- Original Message -----=20
From: mal hamilton=20
To: rsgb=20
Sent: Tuesday, January 27, 2009 11:15 AM
Subject: LF: PROPAGATION WSPR


On LF  I do not think wspr is the correct mode to study propagation as sugge=
sted by some. Two procedures are required with the mode. First it has to be=20=
detected then analyised and decoded into a print format to be viewed. Morse=20=
sent in the QRS mode at a suitable speed between 1 and 120 sec dot only requ=
ires one procedure, to be detected and viewed and would give a good indicati=
on of propagation whether used for QSO purposed or otherwise.
=20
I have pointed out recently that I have observed all of the traces from thos=
e transmitting WSPR and had the carrier been directly keyed in QRS mode an I=
D or intellegence would have been conveyed, whereas only part of the time wa=
s the signals decoded in wspr. For those viewing the print format only and g=
etting no copy would never know whether the signall was being received or if=
 it was faulty sampling and decoding.=20
=20
Cut out the second procedure of decoding, avoid ambiguity and use the slow k=
eyed carried method using morse code or murray code. A waterfall display and=
 the EYE is a very sensitive detector,=20
For those experimenting with data modes have fun but todate in the amateur r=
adio LF/MF context nothing yet has surpassed the use of slow morse keyed at=20=
a speed to suit one's needs ie propagation studies or communication between=20=
two stations.
mal/g3kev
=20






No virus found in this incoming message.
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Version: 8.0.176 / Virus Database: 270.10.14/1917 - Release Date: 1/26/2009=20=
6:37 PM
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