Message-ID: <00de01ca3adc$ef58a2a0$0301a8c0@mal769a60aa920>
From: "mal hamilton" <g3kevmal@talktalk.net>
To: <rsgb_lf_group@blacksheep.org>
References: <1680319571.94273.1253539053273.JavaMail.mail@webmail06> <4AB7A335.32687.23E9727@dave.davesergeant.com>
Date: Mon, 21 Sep 2009 17:59:50 +0100
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Subject: LF: Re: Re: defence of WSPR Signals
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CASE WELL PRESENTED BY DAVE SERGEANT

----- Original Message ----- 
From: "Dave Sergeant" <dave@davesergeant.com>
To: <rsgb_lf_group@blacksheep.org>
Sent: Monday, September 21, 2009 5:00 PM
Subject: LF: Re: defence of WSPR Signals


> On 21 Sep 2009 at 13:17, Peter Cleall wrote:
>
>> I have always been interested in propagation.
>> These WSPR signals are seen by some as repetitious rubbish.
>
> Well having spent a few days looking at WSPR I would tend to fit best
> in the 'repetitious rubbish' group.... WSPR is specifically designed
> for weak signal reception, and there is certainly a case of doing this
> to catch openings to our friends in W and BY land. But at a local level
> I don't think it serves much purpose - it is true that you can
> automatically monitor propagation and QSB rates, but a 2 minute
> sampling time is FAR too long to get any sensible figures from this. At
> my QTH every signal I have copied has been perfectly readable by ear,
> some by a very considerable margin. Once you have monitored for a few
> hours there is little more to be gained and it is a painfully slow mode
> to even consider as a QSO mode.
>
> The USA amateurs are fortunate in having a considerably wider band than
> us. To have what is effective beacon transmissions there for long
> periods in our 3kHz is not the best use of our space.
>
> I shall be very shortly re-configuring my vertical back to its Top Band
> mode for the winter season. If the future of 500kHz lies only in WSPR
> beaconing it is a sad life being an amateur and I have far more useful
> things to do on the other bands.
>
> 73 Dave G3YMC
>
> http://www.davesergeant.com
>
>


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