Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-me01.r1000.mx.aol.com (Internet Inbound) with ESMTP id D018D38000086; Sat, 18 Jun 2011 05:45:14 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1QXs4M-0003AC-Ga for rs_out_1@blacksheep.org; Sat, 18 Jun 2011 10:43:58 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1QXs4L-0003A2-TN for rsgb_lf_group@blacksheep.org; Sat, 18 Jun 2011 10:43:57 +0100 Received: from out1.ip06ir2.opaltelecom.net ([62.24.128.242]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1QXs4J-0004Hk-N2 for rsgb_lf_group@blacksheep.org; Sat, 18 Jun 2011 10:43:57 +0100 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvcAAExy/E1cF/Tc/2dsb2JhbABGDJM7hBqPCneIdb8zgyCDCgSCQ5QYiwU X-IronPort-AV: E=Sophos;i="4.65,385,1304290800"; d="scan'208,217";a="503334657" Received: from unknown (HELO xphd97xgq27nyf) ([92.23.244.220]) by out1.ip06ir2.opaltelecom.net with SMTP; 18 Jun 2011 10:43:49 +0100 Message-ID: <001d01cc2d9c$37407120$0401a8c0@xphd97xgq27nyf> From: "mal hamilton" To: References: <16BC8B3CA8672445BC2A29B4C14A26D4379ED2AAB4@exlnmb01.eur.nsroot.net> <4DF9EFD1.5010208@iup.uni-heidelberg.de> <4DFB7D4F.5020707@iup.uni-heidelberg.de> Date: Sat, 18 Jun 2011 10:43:44 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: VLF: DK7FC's 11th VLF kite experiment Content-Type: multipart/alternative; boundary="----=_NextPart_000_001A_01CC2DA4.98972330" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_20_30,HTML_MESSAGE autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:500473056:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d60894dfc73a9674f X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. ------=_NextPart_000_001A_01CC2DA4.98972330 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Stefan Strong signal on 8970 at 0930 utc -120 dB es Signal over noise at my = QTH is approx 20 dB in DFCW 600 window. Antenna 150 metres inv L up 33 metres high es 2 insulated ground = radials. Antenna direct to sound card es using S/lab If you are QRV 137.7 Khz will sent report on QRS3 =20 73 es GL De Mal/G3KEV=20 ----- Original Message -----=20 From: Stefan Sch=E4fer=20 To: rsgb_lf_group@blacksheep.org=20 Cc: Paul ; Bernd Grupe ; Renato Romero ; Matthias Kirschenstein=20 Sent: Friday, June 17, 2011 5:14 PM Subject: Re: VLF: DK7FC's 11th VLF kite experiment Dear VLF group, Now, the wind forecast shows excellent wind for tomorrow and unstable = and poor wind for sunday. So i will do the 11th experiment tomorrow, = Saturday, 18. June 2011. Tnx in advance to Markus/DF6NM who will be available on the phone to = make QSP to the LF reflector. Vy 73, Stefan/DK7FC Am 16.06.2011 13:58, schrieb Stefan Sch=E4fer:=20 Dear VLF group,=20 Since more than 4 months the wind and rain situation looks promising = for the weekend on my /p QTH in JN49IS36VH. So i plan to do my 11th VLF = kite experiment this weekend, either on Sat 18th or Sun 19th June 2011, = will be announced on friday. I already announced it at the German air = traffic control and just got a phone call were the permission was = granted. The plan is to come on air at about 6 UTC. The antenna will be the 300m vertical kite antenna. I'll plan to = serve the bands 33km and 46km, i.e. 8970 Hz and 6470 Hz. Since i made a = new tap on the TX coil i can now resonate the 300m antenna on 6470 Hz = too. This should give a about 4 dB stronger signal on 46km. Since the gap of low QRN is much smaller now, the experiment will = not take many hours, maybe just 4 or 5.=20 Maybe i can get the 4 kVA generator and will produce a 6 dB stronger = signal but this is not clear so far. Otherwise i am limited to 550 W TX = power. I will limit my antenna current to 2 A in order to prevent a HV = breakdown on the coil and due to thermal losses. At 2 A antenna current = i should have up to 250 mW ERP! The program is to start a longer dash, about 40 minutes, GPS locked = on 8970.00000 Hz, then a message in DFCW-600. Depending on the feedback = of receiving stations i will try to send DFCW-60 or DFCW-10 or DFCW-3 = and CW. Then i'll move to 6470 Hz, transmitting a 40 minutes dash and a "K" = in DFCW-600 or so. As usual the signals will be visible on my grabber in 40 km = distance:=20 http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber.html = for 8970 Hz and=20 = http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html = for 6470 Hz (spectrogram still not available) but surely visible on many other grabbers too ( see = https://sites.google.com/site/sub9khz/vlf-grabbers for a list of = available Dreamer Band grabbers). Some new VLF receivers appeared since my last experiment. Two of = them are: http://qsl.net/4x1rf/yo/vlfgrabber.htm (1435 km) http://www.ok2bvg.cz/vlfgrabber/ (598 km) Leaving a trace on these and all other new and old VLF stations is = the goal! Despite high QRN and the longest days in the year (here in EU) = i am optimistic. Maybe Markus/DF6NM or Marco/DD7PC or someone else in DL wants to be = available on the phone for QSP to the reflector? Looking forward to the weekend and hope all works well and we'll = have much activity. Best 73, Stefan/DK7FC ------=_NextPart_000_001A_01CC2DA4.98972330 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Stefan
Strong signal on 8970  at 0930 utc -120 dB = es Signal=20 over noise at my QTH is approx 20 dB in DFCW 600 window.
Antenna 150 metres inv L up 33 metres high es 2 = insulated=20 ground radials.
Antenna direct to sound card es using = S/lab
 If you are QRV 137.7 Khz will sent = report on=20 QRS3
 
73 es GL De Mal/G3KEV
----- Original Message -----
From:=20 Stefan Sch=E4fer =
Cc: Paul ; Bernd=20 Grupe ; Renato=20 Romero ; Matthias = Kirschenstein=20
Sent: Friday, June 17, 2011 = 5:14 PM
Subject: Re: VLF: DK7FC's 11th = VLF kite=20 experiment

Dear VLF group,

Now, the wind forecast shows = excellent=20 wind for tomorrow and unstable and poor wind for sunday. So i will = do the=20 11th experiment tomorrow, Saturday, 18. June 2011.

Tnx in = advance=20 to Markus/DF6NM who will be available on the phone to make QSP to the = LF=20 reflector.

Vy 73, Stefan/DK7FC

Am 16.06.2011 13:58, = schrieb=20 Stefan Sch=E4fer:=20
Dear=20 VLF group,

Since more than 4 months the wind and rain=20 situation looks promising for the weekend on my /p QTH in = JN49IS36VH. So i plan to do my 11th VLF kite experiment this = weekend,=20 either on Sat 18th or Sun 19th June 2011, will be announced = on=20 friday. I already announced it at the German air traffic control and = just=20 got a phone call were the permission was granted.

The plan is = to come=20 on air at about 6 UTC.

The antenna will be the = 300m=20 vertical kite antenna. I'll plan to serve the bands 33km and = 46km, i.e.=20 8970 Hz and 6470 Hz. Since i made a new tap on the TX coil i can = now=20 resonate the 300m antenna on 6470 Hz too. This should give a about 4 = dB=20 stronger signal on 46km.

Since the gap of low QRN is much = smaller=20 now, the experiment will not take many hours, maybe just 4 or 5.=20

Maybe i can get the 4 kVA generator and will produce a 6 dB = stronger=20 signal but this is not clear so far. Otherwise i am limited to 550 W = TX=20 power. I will limit my antenna current to 2 A in order to prevent a = HV=20 breakdown on the coil and due to thermal losses. At 2 A antenna = current i=20 should have up to 250 mW ERP!

The program is to start a = longer dash,=20 about 40 minutes, GPS locked on 8970.00000 Hz, then a message in = DFCW-600.=20 Depending on the feedback of receiving stations i will try to send = DFCW-60=20 or DFCW-10 or DFCW-3 and CW.
Then i'll move to 6470 Hz, = transmitting a 40=20 minutes dash and a "K" in DFCW-600 or so.

As usual the = signals will=20 be visible on my grabber in 40 km distance:
http://www.iup.uni-heidelberg.de/schaefer_vlf/DK= 7FC_VLF_Grabber.html=20 for 8970 Hz and
http://www.iup.uni-heidelberg.de/schaefer_vlf/DK= 7FC_VLF_Grabber2.html=20 for 6470 Hz (spectrogram still not available)

but surely = visible on=20 many other grabbers too ( see https://sites.google.com/site/sub9khz/vlf-grabbe= rs=20 for a list of available Dreamer Band grabbers).

Some new VLF=20 receivers appeared since my last experiment. Two of them are:
http://qsl.net/4x1rf/yo/vlfgrabber.htm = =20 (1435 km)
http://www.ok2bvg.cz/vlfgrabber/  =  =20 (598 km)
Leaving a trace on these and all other new and old VLF = stations=20 is the goal! Despite high QRN and the longest days in the year (here = in EU)=20 i am optimistic.

Maybe Markus/DF6NM or Marco/DD7PC or someone = else in=20 DL wants to be available on the phone for QSP to the=20 reflector?

Looking forward to the weekend and hope all works = well and=20 we'll have much activity.

Best 73,=20 Stefan/DK7FC


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