Coastal stations are still running, well XSG on A1A is anyway on 522.5 kHz -
Im not sure of the power Shanghai radio puts out but from field measurements
its probably in the 1Kw range.
Laurence - stuck in Singapore....
From: [email protected]
To: [email protected]
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
appliance operators NO.
G3KEV
----- Original Message -----
From: dave.riley3
To: [email protected]
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
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
construction. As soon as the snow melts and temperatures rise a bit the
large vertical will be errected. My QTH can only be temporary so we
must find a permanent home ASAP.
73, Steve
WA1HUD
President NEHRS, Inc.
http://nehrs.net/default.aspx
----- Original Message -----
From: mal hamilton
To: rsgb
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
suggested by some. Two procedures are required with the mode. First it has to
be detected then analyised and decoded into a print format to be viewed. Morse
sent in the QRS mode at a suitable speed between 1 and 120 sec dot only
requires one procedure, to be detected and viewed and would give a good
indication of propagation whether used for QSO purposed or otherwise.
I have pointed out recently that I have observed all of the traces from those
transmitting WSPR and had the carrier been directly keyed in QRS mode an ID or
intellegence would have been conveyed, whereas only part of the time was the
signals decoded in wspr. For those viewing the print format only and getting no
copy would never know whether the signall was being received or if it was
faulty sampling and decoding.
Cut out the second procedure of decoding, avoid ambiguity and use the slow
keyed carried method using morse code or murray code. A waterfall display and
the EYE is a very sensitive detector,
For those experimenting with data modes have fun but todate in the amateur
radio LF/MF context nothing yet has surpassed the use of slow morse keyed at a
speed to suit one's needs ie propagation studies or communication between two
stations.
mal/g3kev
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