Date: Wed, 13 Jul 2016 15:53:53 +0000 (UTC)
From: M0FMT <m0fmt@yahoo.co.uk>
To: <rsgb_lf_group@blacksheep.org>
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Subject: Re: LF: AW: SAQ statistics
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Hi Richard and Ha-Jo

First off I am not receiving my own mails to the RSGB Blacksheep reflector? So it was a surprise to see your interesting replies
.
Well Ha-Jo to have such a unique and interesting design rejected says something about the GQRP. However in their defence my first off air copy of SAQ was using a design out of Sprat magazine. It was a single transistor self oscillating mixer using a 3mHz xtal and an unturned antenna input. The output IF was into my TS690s TRX at about 3.0172mHz. I still have that unit.

The SAQ transmission for me operates on so many different levels. It is link to the origins of radio science. It demonstrates that there is no boundary between the technologies, it’s all physics. The machine itself is a grand demonstration of magnetic reluctance in operation. Not a valve/tube or transistor in sight but producing a pure CW single frequency tone, unlike spark.

I have noticed the DL interest in reporting SAQ for some time and have never understood why it is not so popular in G land. It can be heard using a PC with soundcard so it’s not as though there are any serious technical hurdles to jump. Maybe the RSGB need to make an effort to publicise the transmissions to boost listener numbers in the UK.

I am as much to blame since I have not reported for some also.


73 es GL Pete M0FMT GQRP#15097.in IO91UX 


--------------------------------------------
On Wed, 13/7/16, Richard S <thepowerofdoubt@gmail.com> wrote:

 Subject: Re: LF: AW: SAQ statistics
 To: rsgb_lf_group@blacksheep.org
 Date: Wednesday, 13 July, 2016, 15:23
 
 Hans, it
 would  be great if you could publish details of your
 receive and antenna on the web, or put a short film on you
 tube of your 17khz loop
 
 73richard SO5GB
 13 lip 2016 14:20
 "Hans Joachim Brandt" <hajo.brandt.dj1zb@t-online.de>
 napisał(a):
 Dear
 Pete,
 
 
 I guess I am the culprit why so many Germans are able to
 receive SAQ (the maximum number of SAQ receptions in Germany
 had even been 186 a few years ago):
 
 
 I have started to receive SAQ in 1997, being a retired OM
 living in a small village in eastern Bavaria.
 
 
 At first I have built a converter for SAQ to receive its
 frequency in a radio amateur band. But then a neighbor two
 houses away has installed a photovoltaic system on its
 house, and the operation of this system increased the qrm
 level so much that I could not receive SAQ any longer under
 these conditions.
 
 
 Then I had the idea to build a portable receiver especially
 for SAQ, powered by a 9 V battery and a maximum current of
 25 mA, depending on the audio power needed for the
 headphones. I even found out that I just had to divide the
 frequency of the well known clock crystal 32768 Hz by two to
 get a tone frequency of 816 Hz for the reception of SAQ.
 This receiver has been published in the german radio amateur
 perodical CQ DL May 2013. Six months later the number of
 german radio amateurs sending repots to SAQ has increased
 considerably. Still being a german member of the british
 G-QRP-Club I have also written an English version of this
 SAQ receiver, but it had been rejected because of "not
 being QRP". Just this year, on 13. April 2016, I have
 sent another English text about this receiver by email to
 Radcom. But until now I have not received any answer so far
 if Radcom would accept this text or not.
 
 
 MY SAQ receiver is based on the fact that outside of
 residential areas the QRM in the VLF range is rather low.
 The antenna used is a tuned loop for 17.2 kHz. The loop is
 also able to separate vertically polarised  radio waves
 from horizontal polarized waves. Even in the area where I
 usually receive SAQ there is a street and a telecom tower,
 and when I am turning my loop into a horizontal position a
 singing noise can be heard. But in the vertical position I
 have no problems to give a rapport of RST 589 for SAQ.
 
 
 HW?
 
 
 73 Ha-Jo, DJ1ZB
 
 
 -----Ursprüngliche Nachricht-----
 
 Von: owner-rsgb_lf_group@blacksheep.org
 [mailto:owner-rsgb_lf_group@blacksheep.org]
 Im Auftrag von M0FMT
 
 Gesendet: Mittwoch, 13. Juli 2016 12:03
 
 An: rsgb_lf_group@blacksheep.org
 
 Betreff: LF: SAQ statistics
 
 
 Hi All
 
 
 Why is there such a high number of DLs receiving SAQ at 116
 ?  Very well done!
 
 G putting in a measly 19 rprts.
 
 I further away but putting in 26 rprts. Well done PA also in
 there with 24 rprts.
 
 
 I blame the rsgb.
 
 
 73 es GL Pete M0FMT GQRP#15097.in IO91UX
 .