Return-Path: X-Spam-DCC: paranoid 1290; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-1.7 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, FORGED_RCVD_HELO,HTML_40_50,HTML_MESSAGE,SPF_PASS autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id u3GCbWig027278 for ; Sat, 16 Apr 2016 14:37:32 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1arPPb-0002aZ-NN for rs_out_1@blacksheep.org; Sat, 16 Apr 2016 13:33:19 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1arPPb-0002aQ-8i for rsgb_lf_group@blacksheep.org; Sat, 16 Apr 2016 13:33:19 +0100 Received: from s16315160.onlinehome-server.info ([87.106.80.234] helo=mail.vigilant.es) by relay1.thorcom.net with esmtp (Exim 4.87) (envelope-from ) id 1arPPZ-0002Th-1T for rsgb_lf_group@blacksheep.org; Sat, 16 Apr 2016 13:33:18 +0100 Received: from servigilant.vigilant.local ([87.216.178.132]) by vigilant.es with MailEnable ESMTP; Sat, 16 Apr 2016 14:32:54 +0200 Received: from servigilant.vigilant.local ([fe80::3cdf:95f8:c1c9:3931]) by servigilant.vigilant.local ([fe80::3cdf:95f8:c1c9:3931%13]) with mapi id 14.03.0123.003; Sat, 16 Apr 2016 14:33:00 +0200 From: =?iso-8859-1?Q?VIGILANT_Luis_Fern=E1ndez?= To: "rsgb_lf_group@blacksheep.org" Thread-Topic: LF: EA in LF NOW ! Thread-Index: AQHRljiFIy44cOHBrE60yk/5d6NN2Z+Ki6mAgAHWW9L///KwAIAANCII Date: Sat, 16 Apr 2016 12:32:58 +0000 Message-ID: <579355A36AEE9D4FA555C45D556003AB53B6C762@servigilant.vigilant.local> References: <579355A36AEE9D4FA555C45D556003AB53B6C5A4@servigilant.vigilant.local>,<8D365E878A1E52E-1358-5D8D1@webmail-vd003.sysops.aol.com> In-Reply-To: <8D365E878A1E52E-1358-5D8D1@webmail-vd003.sysops.aol.com> Accept-Language: es-ES, en-US Content-Language: es-ES X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [95.17.108.20] MIME-Version: 1.0 X-Scan-Signature: f4625b23d277cf453c74a2300a95877d Subject: Re: LF: EA in LF NOW ! Content-Type: multipart/alternative; boundary="_000_579355A36AEE9D4FA555C45D556003AB53B6C762servigilantvigi_" 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-Scanned-By: MIMEDefang 2.56 on 10.1.3.11 Status: O X-Status: X-Keywords: X-UID: 7740 --_000_579355A36AEE9D4FA555C45D556003AB53B6C762servigilantvigi_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Markus, LF This morning I have interrumped transmissions to measure power and the indu= ctance of coils That causes the GPS recalibration process to work harder. First corrections= are too low and two high getting accurate on the third try, as DDS oscillator stabilizes. The proble= m with OP32 is that this calibrations are just done after the transmission period is completed. So t= he overall process takes about 100 minutes to complete I'm not using the park feature. This is mainly to avoid birdies in other Rx= when the U3 is not transmitting as I understand it. Anyway, the GPS caibration process changes DDS frequenc= y and should have similar effects as the park feature Have measured 0,7mH in the first coil + variometer at minimum, 1,23mH in th= e second and 4,73mH in the third double layer coil. That makes the antenna to resonate just in = 137.500Hz Now I'm on air again, but first calibration may have pulled the frequency t= o .517 again 73 de Luis EA5DOM ________________________________ De: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org]= en nombre de Markus Vester [markusvester@aol.com] Enviado: s=E1bado, 16 de abril de 2016 13:15 Para: rsgb_lf_group@blacksheep.org Asunto: Re: LF: EA in LF NOW ! Hi Luis, here are two hi-res screenshots (40 mHz span), showing your Opera carrier y= esterday and today. Today's traces seemed generally weaker (propagation?), = and there are visible frequency steps (presumably from the GPS recalibratio= ns) which might have slightly affected opds's carrier detection. But pieces= of carrier are still visible so coherence appears to be preserved. Unfortunately I am not familiar with the U3 and it's features and settings.= Klaus DJ6LB mentioned that there exists a "park" option to move the freque= ncy away during key-up periods, which would most likely destroy phase coher= ence between symbols. I am now detecting you on 137517.07 - have you moved 5 Hz up? All the best, Markus (DF6NM) -----Urspr=FCngliche Mitteilung----- Von: VIGILANT Luis Fern=E1n dez An: rsgb_lf_group Verschickt: Sa, 16 Apr 2016 12:12 pm Betreff: Re: LF: EA in LF NOW ! Hi LF M0DSZ decoded me in Opera Deep Search last night at 1596Km, so ODX so far 04:57 136 EA5DOM de M0DSZ Op32 Deep Search 1596 km -42 dB in NW Shropshi= re, IO82LS 1512.3 Hz 04:53 136 EA5DOM de EA5DOM Op32 0 km -10 dB F:1%_End in Albir 1510,3 Hz 04:23 136 EA5DOM de M0DSZ Op32 Deep Search 1596 km -43 dB in NW Shropshi= re, IO82LS 1512.3 Hz Thank you for the report on the phase carrier Markus I have been transmitting continous periods setting the "Frame Start" U3 men= u to "00 00" May be this is the reason for the phase coherent carrier. To test this, I c= hanged the settings last night So during last night I set 2 minutes pause between transmissions. This also= allowed the U3 to make a GPS calibration which did not happen before. Anyway, as there are no BS170 heating inside t= he box, frequency stability is quite good >From your correlation detections list looks like last night I didn't got so= many. May be the phase is not coherent now ? Finally, made an RMS measurement of U3 output over 50Ohm Power is a few dBs over 100mW, but still QRP. The 100mW figure was at MF https://dl.dropboxusercontent.com/u/7162072/Fotos%20varias/MF/U3%20over%205= 0Ohm%20at%20137KHz.png 73 de Luis EA5DOM ________________________________ De: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org] en nombre de Markus Vester [markusvester@aol.com] Enviado: viernes, 15 de abril de 2016 10:00 Para: rsgb_lf_group@blacksheep.org Asunto: Re: LF: EA in LF NOW ! Plenty of good opds detections again here last night: https://dl.dropboxuse= rcontent.com/u/26404526/opds.htm Moving the zoomed section of the spectrogram to your QRG shows a good and n= arrow (albeit slightly drifting) central carrier. This means that your vers= ion of the U3 is keying coherently with continuous carrier phase, helping o= pds to reach it's full sensitivity. According to earlier observations on MF= , there also other Ultimate versions out there which apparently reset the D= DS during the gaps, producing random-phase symbols with no continuous carri= er. Best 73, Markus (DF6NM) --_000_579355A36AEE9D4FA555C45D556003AB53B6C762servigilantvigi_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hi Markus, LF

This morning I have interrumped transmissions to measure power and the= inductance of coils
That causes the GPS recalibration process to work harder. First correc= tions are too low and two high
getting accurate on the third try, as DDS oscillator stabilizes. The p= roblem with OP32 is that this
calibrations are just done after the transmission period is completed.= So the overall process takes
about 100 minutes to complete

I'm not using the park feature. This is mainly to avoid birdies in oth= er Rx when the U3 is not transmitting
as I understand it. Anyway, the GPS caibration process changes DDS fre= quency and should have
similar effects as the park feature

Have measured 0,7mH in the first coil + variometer at minimum, 1,2= 3mH in the second and 4,73mH
in the third double layer coil. That makes the antenna to resonate jus= t in 137.500Hz

Now I'm on air again, but first calibration may have pulled the freque= ncy to .517 again

73 de Luis
EA5DOM

De: owner-rsgb_lf_group@blacksheep.org [o= wner-rsgb_lf_group@blacksheep.org] en nombre de Markus Vester [markusvester= @aol.com]
Enviado: s=E1bado, 16 de abril de 2016 13:15
Para: rsgb_lf_group@blacksheep.org
Asunto: Re: LF: EA in LF NOW !

Hi Luis,
 
here are two hi-res screenshots (40 mHz span), showing your Opera carr= ier yesterday and today. Today's traces seemed generally weaker (propagatio= n?), and there are visible frequency steps (presumably from the G= PS recalibrations) which might have slightly affected opds's carrier detection. But pieces of carrier are still visible so&= nbsp;coherence appears to be preserved.
 
Unfortunately I am not familiar with the U3 and it's&nb= sp;features and settings. Klaus DJ6LB mentioned that there exists a "p= ark" option to move the frequency away during key-up periods= , which would most likely destroy phase coherence between symbols.
 
I am now detecting you on 137517.07 - have you moved 5 Hz up?
 
All the best,
Markus (DF6NM)
  
 

-----Urspr=FCngliche Mitteilung-----
Von: VIGILANT Luis Fern=E1n dez <luis@vigilant.es>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Sa, 16 Apr 2016 12:12 pm
Betreff: Re: LF: EA in LF NOW !

Hi LF

M0DSZ decoded me in Opera Deep Search last night at 1596Km, so ODX so = far

04:57 &= nbsp;  136 EA5DOM de M0DSZ Op32 Deep Search 1596 km -42 dB in NW Shrop= shire, IO82LS 1512.3 Hz
04:53 &= nbsp;  136 EA5DOM de EA5DOM Op32 0 km -10 dB F:1%_End in Albir 1510,3 = Hz
04:23 &= nbsp;  136 EA5DOM de M0DSZ Op32 Deep Search 1596 km -43 dB in NW Shrop= shire, IO82LS 1512.3 Hz

Thank y= ou for the report on the phase carrier Markus

I have = been transmitting continous periods setting the "Frame Start" U3 = menu to "00 00"
May be = this is the reason for the phase coherent carrier. To test this, I changed = the settings last night
So duri= ng last night I set 2 minutes pause between transmissions. This also allowe= d the U3 to make a GPS calibration
which d= id not happen before. Anyway, as there are no BS170 heating inside the box,= frequency stability is quite good

From yo= ur correlation detections list looks like last night I didn't got so many. = May be the phase is not coherent now ?

Finally, made an RMS measurement of U3 output over 50Ohm
Power is a few dBs over 100mW, but still QRP. The 100mW figure was at = MF

73 de Luis
EA5DOM

De: own= er-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org] e= n nombre de Markus Vester [markusvester@aol.com]
Enviado: viernes, 15 de abril de 2016 10:00
Para: rsgb_lf_group@blacksheep.org
Asunto: Re: LF: EA in LF NOW !

Plenty of good opds detections again here last night: https://dl.dropboxusercontent.com/u/26404526/opds.htm
 
Moving the zoomed section of the spectrogram to your QRG shows a good = and narrow (albeit slightly drifting) central carrier. This means that= your version of the U3 is keying coherently with continuous carrier p= hase, helping opds to reach it's full sensitivity. According to earlier observations on MF, there also other Ultimate ve= rsions out there which apparently reset the DDS during the gaps, produ= cing random-phase symbols with no continuous carrier.
Best 73,
Markus (DF6NM)

--_000_579355A36AEE9D4FA555C45D556003AB53B6C762servigilantvigi_--