Return-Path: Received: from rly-de12.mx.aol.com (rly-de12.mail.aol.com [172.19.170.148]) by air-de04.mail.aol.com (v123.3) with ESMTP id MAILINDE044-51e49b43a17202; Sun, 08 Mar 2009 17:35:42 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-de12.mx.aol.com (v123.3) with ESMTP id MAILRELAYINDE125-51e49b43a17202; Sun, 08 Mar 2009 17:35:22 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1LgQe2-0002tw-Ss for rs_out_1@blacksheep.org; Sun, 08 Mar 2009 21:34:50 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1LgQe1-0002tn-Tz for rsgb_lf_group@blacksheep.org; Sun, 08 Mar 2009 21:34:49 +0000 Received: from mail-fx0-f174.google.com ([209.85.220.174]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1LgQdz-00029q-40 for rsgb_lf_group@blacksheep.org; Sun, 08 Mar 2009 21:34:49 +0000 Received: by fxm22 with SMTP id 22so1209932fxm.4 for ; Sun, 08 Mar 2009 14:34:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type; bh=HkpFXyb1PQkf8e8asu4kyUH8vvk78WtgeAriRZhqbjw=; b=bdE3u+4NlRIhHNBBtkDwwM4ZKg8edYog+6lDgdemrTG8wSQmBEdd1mKoTsCyZ5ujkZ Kl1pSLFefUDoDrRXHBt9Yho5cljnFwYZoy5F2BaiqYMI342p2dnuqtEooT0vFLwfXlK+ w3HmJ9hJ/ziVQe7tnlijwpGqDU4ZrKjHtobEY= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=Flz65wkwB83/7HnTqPSP15aRjVRhUA+SJM8Kcg8CeGKiElUG/UFmXCGyriDQ7ojgnT db97NHFmMNFlx02G9b1aAUvbPgCyQxjRuo5X8u01t8QmXAUmp32Ymq+Vq+EqaE9CN65Q yzui2s6df2VhBaHLwia0esg4ZIw7XFqbUADQI= MIME-Version: 1.0 Received: by 10.223.117.1 with SMTP id o1mr3955323faq.53.1236548080404; Sun, 08 Mar 2009 14:34:40 -0700 (PDT) In-Reply-To: <09E4F4FB066B4A5993583B221520D530@AGB> References: <28FA0F184B25444F8BA2F1EC5FC42C04@AGB> <09E4F4FB066B4A5993583B221520D530@AGB> Date: Sun, 8 Mar 2009 21:34:40 +0000 Message-ID: From: Andy Talbot To: rsgb_lf_group@blacksheep.org X-Karma: unknown: DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: LF: AW: 503.7 Multi-function beacon ... Its working ! Content-Type: multipart/alternative; boundary=001636c5b680148a430464a24912 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.6 required=5.0 tests=HTML_40_50, HTML_FONTCOLOR_UNKNOWN,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-IP: 193.82.116.20 X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-d237.1 ; domain : googlemail.com DKIM : pass X-Mailer: Unknown (No Version) --001636c5b680148a430464a24912 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Its exactly the same RF hardware as the WSPR beacon was - the only difference is in the PIC code. Details are : 100W RF Out (peak / carrier) 7m high Tee antenna with 14m top span. Gain estimate -27dB - based on Rrad / Rload measurements ERP 23dBm. There may be some small /low-res photos of the antenna in the 73kHz archives somewhere - but I don't have good quality electronic copies. They were taken on film a few years before before digital photography became all-pervasive. For info, the controller consists of an AD9852 DDS clocked from a 13MHz TCXO (*4 internally for a 52MHz DDS clock) controlled from a 16F628 PIC. A Motorola Oncore GPS receiver supplies timing information as serial data and a 1PPS UTC reference pulse. An early version of the PIC driver code can be found at http://www.g4jnt.com/NEWHFBCN.ASM The latest version has a few improvements, such as raised cosine shaping on the CW pulse rather than the linear ramp in the code shown Power Amp. is a Kalmus broadband module, flat over 0.5 to 40MHz, rated at 200W max - so at 100W is substantially backed-off for good linearity. Andy G4JNT www.g4jnt.com 2009/3/8 Graham > Andy, > > Looks like I have a signal 6/10 db over the noise during the day from > 1200 slow rise from 1500 peak at 1800 , dip at 1700 and + 23 dB at 201= 5 > .. seems to be a 1 hour qsb cycle as well > > I think Gary is set up also for 24 monitor period ... Im seeing signal > levels recorded that are not showing on spec lab .. > > Q, do you have some details of the beacon, power , erp, or web links I > can add to the info page ? > > Tnx- G .. > > > *From:* Andy Talbot > *Sent:* Sunday, March 08, 2009 6:26 PM > *To:* rsgb_lf_group@blacksheep.org > *Subject:* Re: LF: AW: 503.7 Multi-function beacon ... Its working ! > > It is no trouble to continue the transmission. I have set up the equipmen= t > in the garage where it does not get in the way of other shack activites, a= nd > won't do too much damage if the euipment blows up! So I can leave it > running for a few weeks unless the antenna is needed for other purposes.. > > Andy G4JNT > www.g4jnt.com > > > 2009/3/8 Beckmann, Gerhard > >> Hi Graham, >> >> >> >> Thank you for your statement! >> >> Well actually, especially Scattergram or equal measurement methods would >> be of interest regarding the aspect of signal path monitoring. (direct wa= ve >> / sky wave via cross correlation of pulse delay values). >> >> However, the aspect of interferences by using 500us pulses has to be take= n >> into consideration but may be there are coming up suitable solution by th= e >> LF-group. >> >> Another method of monitoring the signal path on 500 kHz could possibly >> performed by using the =93PSK Sounder=94 software from ZL2AFP. And what I= saw on >> a first glance it should be usable for transmission and reception in orde= r >> to monitor the signal path situation. >> >> >> >> By the way: >> >> Do you know if Andy is continuing the Multi-function beaconing on 503.7 >> kHz? >> >> In this case I would try long term signal monitoring by GB3RAL.exe and PS= K >> message decoding within the next evening sessions. >> >> >> >> vy 73 de Gerhard / DK6NI >> >> >> >> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D >> >> >> >> >> >> >> ------------------------------ >> >> *Von:* owner-rsgb_lf_group@blacksheep.org [mailto: >> owner-rsgb_lf_group@blacksheep.org] *Im Auftrag von *Graham >> *Gesendet:* Sonntag, 8. M=E4rz 2009 15:36 >> *An:* rsgb_lf_group@blacksheep.org >> *Betreff:* Re: LF: AW: 503.7 Multi-function beacon ... Its working ! >> >> >> >> Hi, Grerhard, >> >> >> >> Andy's post about the new beacon came out of the blue, (as is the signa= l >> hihi), Working on this, I've simply added a page to the uk500khz news >> group and posted links about to generate some interest and make sure the >> beacon details are known to hams and swl's out side this reflector .. >> >> >> >> The only thing that occurs to me is that there is a possibility for >> reception reports to be directed to the 5 meg group , I note that the >> graph generator by G4IRX requests your call and locator before processi= ng >> the file and presenting you with a plot. so I will see if anything can be >> done to prevent this , the data format is of course distorted by having >> only one active beacon.. so it will show up .. but may as yet be unexpect= ed >> ...! >> >> >> >> I note from previous email that the pulse aspect of the beacon is >> required for precise measurements, I think that may be possible to set up= a >> 'experiment' but the aspect of interference to other users may be >> significant, Andy has referred to the concept of 'phase reversal' in a >> continues carrier system (or medium pulse ?) that would perhaps be a >> acceptable mode of modulation, weather it could be transmitted by a 'norm= al' >> transmitter im note sure , but its worth noting that activities on 500, t= o >> date are not 'funded' as such and time and capital out lay are part of t= he >> 'hobby' and such hardware requirements and software re-writes are beyond >> many of the active stations. but perhaps as interest spreads .. things ma= y >> change ..? >> >> >> >> Tnx- >> >> >> >> Graham >> >> >> >> G0NBD >> >> IO83LK >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> *From:* Beckmann, Gerhard >> >> *Sent:* Sunday, March 08, 2009 11:06 AM >> >> *To:* rsgb_lf_group@blacksheep.org >> >> *Cc:* 'Robert Hemesley' >> >> *Subject:* LF: AW: 503.7 Multi-function beacon ... Its working ! >> >> >> >> Hello Graham, Hello Andy, >> >> >> >> reading about your activities concerning Multi-function beacon I tried >> yesterday evening to catch your signals, but unfortunately with no result= s >> copying your sig. May be condx were not good enough. Moreover I had some >> bad manmade QRM from TV and PC. >> >> >> >> As Rob Hemesley told you I am active in 5-MHz-beaco- monitoring >> specially concerning scattergram monitoring in order to analyse signal p= ath >> situation (direct wave / sky wave behaviour). >> >> But I am running both analysis software, GB3RAL.exe and >> Scattergram.exe and it would not be any problem to modify the internal >> PC-clock specially regarding GB3RAL.exe in order to analyse the long term >> signal level of your Multi-function beacon. So I will try to continue >> monitoring your Multi-function beacon hopefully that condx will be better= in >> the next evening sessions (hi). >> >> If there will be Scattergram acties in future I certainly need some >> more dB signal level, but it would be very interesting to investigate the >> signal path situation. >> >> Of course, this is more interesting for those participants who are >> located in a distance range between 150 and 300 km in order to monitor th= e >> slide crossover from direct wave to sky wave signal path. >> >> However, thank you very much for implementation of your very >> interesting Multi-function beacon project and I will keep on running my >> monitoring activities and will inform you in any case about further resul= ts. >> >> >> >> vy 73 and a lot of success by running Multi-function beacons, I will be >> =93on the qui vive=94 !!! >> >> >> >> de Gerhard / DK6NI (JN59LN) >> >> >> >> By the way: >> >> Dial frequency 505.2 kHz, is that o.k.? (because GB3RAL.exe is decoding >> with 1500 Hz too). >> >> For BPSK31-decoding I am using DigiPan Vers.2.0 >> >> >> >> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D >> >> >> >> >> >> >> ------------------------------ >> >> *Von:* owner-rsgb_lf_group@blacksheep.org [mailto: >> owner-rsgb_lf_group@blacksheep.org] *Im Auftrag von *Graham >> *Gesendet:* Samstag, 7. M=E4rz 2009 23:46 >> *An:* rsgb_lf_group@blacksheep.org >> *Betreff:* LF: 503.7 Multi-function beacon ... Its working ! >> >> >> >> So far so good .. quite a step up in signal round 2100 hrs >> >> no frequency decode before then , 15 db over noise at 2130 >> >> >> >> but a trend showing >> >> about 1 hour slow qsb >> >> >> >> any other reports ? >> >> >> >> G .. >> >> >> ------------------------------ >> >> >> No virus found in this incoming message. >> Checked by AVG - www.avg.com >> Version: 8.0.237 / Virus Database: 270.11.9/1988 - Release Date: 03/06/09 >> 19:17:00 >> > > ------------------------------ > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 8.0.237 / Virus Database: 270.11.9/1989 - Release Date: 03/07/09 > 18:43:00 > > --001636c5b680148a430464a24912 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable
Its exactly the same RF hardware as=A0the WSPR beacon was - the only di= fference is in the PIC code.=A0
=A0
Details are :
=A0 100W RF Out (peak / carrier)
=A0 7m high Tee antenna with 14m top span.
=A0 Gain estimate -27dB - based on Rrad / Rload measurements
=A0 ERP 23dBm.
=A0
There may be some small /low-res photos of the antenna in the 73kHz arc= hives somewhere - but I don't have good quality electronic copies.=A0 Th= ey were taken on film=A0a few years before before digital photography became= all-pervasive.
=A0
For info, the controller consists of an=A0AD9852 DDS clocked from a 13M= Hz TCXO (*4 internally for=A0a 52MHz DDS clock) controlled from a 16F628 PIC= .=A0 A Motorola Oncore GPS receiver supplies timing information as serial da= ta=A0and a 1PPS UTC reference pulse.
=A0
An early version of the PIC driver code can be found at http://www.g4jnt.com/NEWHFBCN.ASM=A0 The=20= latest version=A0has a few improvements, such as=A0raised cosine shaping on=20= the CW pulse rather than the linear ramp in the code shown
=A0
Power Amp. is a Kalmus broadband=A0module, =A0flat over =A00.5 to 40MHz= , rated at 200W max - so at 100W is substantially backed-off for good linear= ity.

Andy =A0G4JNT
www= .g4jnt.com


2009/3/8 Graham <g8fzk@g8fzk.fsnet.co.uk>
Andy,
=A0
Looks like I have a signal 6/10 db over= the=A0 noise during the=A0 day from 1200=A0 slow rise from 1500 =A0peak at=20= 1800 , dip at 1700=A0 and=A0 + 23 dB at 2015 .. seems to=A0 be a 1 hour qsb=20= cycle as well
=A0
I think Gary is set up=A0 also for=A0 2= 4 monitor period ... Im seeing signal levels recorded that are not=A0 showin= g on spec lab ..
=A0
Q, do you=A0 have some details of the= =A0 beacon,=A0 power , erp,=A0or=A0 web links I can add to=A0 the info page=20= ?
=A0
Tnx- G .. =A0
=A0

Sent: Sunday, March 08, 2009 6:26 PM
Subject: Re: LF: AW: 503.7 Multi-function beacon ... Its working= !

It is no trouble to continue the transmission.=A0 I have set up the equ= ipment in the garage where it does not get in the way of other shack activit= es, and won't do too much damage if the euipment blows up!=A0 So I can l= eave it running for a few weeks unless the antenna is needed for other purpo= ses..

Andy =A0G4JNT
www.g4jnt.com


2009/3/8 Beckmann, Gerhard <= beckmann.er= langen@freenet.de>

Hi G= raham,

=A0

Thank you for your statement!

Well actually, especially Scattergram or equal measurement method= s would be of interest regarding the aspect of signal path monitoring. (dire= ct wave / sky wave via cross correlation of pulse delay values).

However, the aspect of interferences by using 500us pulses has to= be taken into consideration but may be there are coming up suitable solutio= n by the LF-group.

Another method of monitoring the signal path on 500 kHz could pos= sibly performed by using the =93PSK Sounder=94 software from ZL2AFP. And wha= t I saw on a first glance it should be usable for transmission and reception= in order to monitor the signal path situation.

=A0

By the way:

Do you know if Andy is continuing the Multi-function beaconing on= 503.7 kHz?

In this case I would try long term signal monitoring by GB3RAL..e= xe and PSK message decoding within the next evening sessions.<= /p>

=A0

vy 73 de Gerhard / DK6NI

=A0

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D

=A0

=A0

=A0

Von: owner-rsgb_= lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] <= span style=3D"FONT-WEIGHT: bold">Im Auftrag von Graham
Gesendet: Sonntag, 8. M=E4rz= 2009 15:36=20

Betreff: Re= : LF: AW: 503.7 Multi-function beacon ... Its working !=20

=A0

Hi, Grerhard,

=A0

Andy's post about the=A0 new beacon came out of the=A0 blue,=20= (as is the signal hihi), Working on this, =A0I've simply added a page to= the=A0 uk500khz news group and posted links about to=A0 generate some inter= est and make sure=A0the beacon=A0details are known to hams and swl's out= side this reflector ..

=A0

The only thing that occurs to=A0 me is that there is a possibilit= y for reception reports to be=A0 directed to the 5 meg group , I note that t= he=A0 graph generator by G4IRX=A0 requests your call and locator=A0 before p= rocessing the file and presenting you with a plot. so I will see if anything= can be done to=A0 prevent this , the data format is of course distorted by=20= having only one active beacon.. so it will show up .. but may as yet be unex= pected ...!

=A0

I note from previous email that the pulse aspect of the=A0 beacon= is required for precise measurements, I think that may be possible to set u= p a 'experiment' =A0but the aspect of interference to=A0 other users= may be significant, Andy has referred to the concept of 'phase reversal= ' in a continues carrier system (or medium pulse ?) that would perhaps b= e a acceptable mode of modulation, weather it could be transmitted by a '= ;normal' transmitter im note sure , but its worth noting that activities= on 500, to date =A0are not 'funded' as such and time and capital ou= t lay are part of the 'hobby' and such hardware requirements =A0and=20= software re-writes are beyond many of the active stations. but perhaps as in= terest spreads .. things may change ..?

=A0

Tnx-

=A0

Graham

=A0

G0NBD

IO83LK

=A0

=A0

=A0

=A0

=A0

=A0

=A0

=A0

Sent: Sunday, March 08, 2009 11:06 AM

Subject:= LF: AW: 503.7 Multi-function beacon ... Its wor= king !

=A0

Hello Graham, Hello Andy,

=A0

reading about your activities concerning Multi-fun= ction beacon I tried yesterday evening to catch your signals, but unfortunat= ely with no results copying your sig. May be condx were not good enough.=A0=20= Moreover I had some bad manmade QRM from TV and PC.

=A0

=A0=A0=A0=A0=A0 As Rob Hemesley told you I am acti= ve in 5-MHz-beaco- monitoring specially concerning=A0 scattergram monitoring= in order to analyse signal path situation (direct wave / sky wave behaviour= ).

=A0=A0=A0=A0=A0 But I am running both analysis sof= tware, GB3RAL.exe and Scattergram.exe and it would not be any problem to mod= ify the internal PC-clock specially regarding GB3RAL.exe in order to analyse= the long term signal level of your Multi-function beacon. So I will try to=20= continue monitoring your Multi-function beacon hopefully that condx will be=20= better in the next evening sessions (hi).

=A0=A0=A0=A0=A0 If there will be Scattergram actie= s in future I certainly need some more dB signal level, but it would be very= interesting to investigate the signal path situation.

=A0=A0=A0=A0=A0 Of course, this is more interestin= g for those participants who are located in a distance range between 150 and= 300 km in order to monitor the slide crossover from direct wave to sky wave= signal path.

=A0=A0 =A0=A0=A0=A0However, thank you very much fo= r implementation of your very interesting Multi-function beacon project and=20= I will keep on running my monitoring activities and will inform you in any c= ase about further results.

=A0

vy 73 and a lot of success by running Multi-functi= on beacons, I will be =93on the qui vive=94 !!!

=A0

de Gerhard=A0 /=A0 DK6NI=A0 (JN59LN)=

=A0

By the way:

Dial frequency 505.2 kHz, is that o.k.? (because G= B3RAL.exe is decoding with 1500 Hz too).

For BPSK31-decoding I am using DigiPan Vers.2.0

=A0

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

=A0

=A0

=A0

Von: owner-rsgb_= lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] <= span style=3D"FONT-WEIGHT: bold">Im Auftrag von Graham
Gesendet: Samstag, 7. M=E4rz= 2009 23:46
An: rsgb_lf_group@bla= cksheep.org
Betreff: LF: 503.7 Multi-fun= ction beacon ... Its working !

=A0

So far so good .. quite a step up in signal round 2100 hrs=A0

no frequency decode before then , 15 db over noise at 2130=

=A0

but a trend showing

about=A0 1 hour slow qsb

=A0

any other reports ?

=A0

G ..

=A0


No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.0.= .237 / Virus Database: 270.11.9/1988 - Release Date: 03/06/09 19:17:00



No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.0.237 / Virus Database: 270.11.9/1989 - Release= Date: 03/07/09 18:43:00


--001636c5b680148a430464a24912--