Message-ID: <2000120713124568199@zetnet.co.uk>
Date: Thu, 7 Dec 2000 13:12:45 GMT
To: rsgb_lf_group@blacksheep.org
From: "Peter Dodd" <g3ldo@zetnet.co.uk>
Subject: Re: LF: Real wireless in "Electronics World"!!
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Hi Alan
> I have just received my Jan copy of Electronics World ( or Wireless
> World as it used to be known) with a article by two Italians on 136MHz.
> There are no call-signs given, and a lot of the background about 136 seems
> to be somewhat dated, possibly due to publication delays. A little too much
> emphasis is given to CCIR type graphs which are proving to have little in
> common with amateur style communications.............................. 

I read the article and I agree with you

> Peter may find it worthwhile dropping the journal a letter to update them on the
> availability of the new LF Handbook.......................

OK, I have sent an e-mail, a copy of which is shown below:

======================================
Hi Jackie,
I refer to your article in Electronics World, 'Comms at 136kHz'.

We, as a large group radio amateurs, have been experimenting using LF 
frequencies on the 73kHz band and the 136kHz band since 1997. 
Your article does not reflect the reality of work being done on these 
bands and is mainly derived from textbooks - much of which is 
inappropriate to amateur radio applications. Furthermore, the 
circuits are far to simplified to be of any practical use; for 
example it is essential to be able to resonate the antenna loading 
coil for the transmitter to have any chance of working.
There is amateur activity from around 22 countries in Europe 
(including Italy) and limited activity from Canada and USA and 
contact has been made with Europe and Canada on the 136kHz band on 
more than one occasion. None of this activity has been described in 
your article.
Detailed information regarding the LF bands is described in 'The Low 
Frequency Experimenter's Source Book'  available from the Radio 
Society of Great Britain.
Would you like an article on the real world of amateur radio on the 
low frequency bands?

-- 
Regards, Peter Dodd, G3LDO

<g3ldo@zetnet.co.uk>

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