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=-2.2 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, FORGED_RCVD_HELO,HTML_MESSAGE 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 t9HMrRe0022386 for ; Sun, 18 Oct 2015 00:53:27 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ZnaJI-0005iM-3x for rs_out_1@blacksheep.org; Sat, 17 Oct 2015 23:50:44 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ZnaJH-0005iD-Jw for rsgb_lf_group@blacksheep.org; Sat, 17 Oct 2015 23:50:43 +0100 Received: from s16315160.onlinehome-server.info ([87.106.80.234] helo=mail.vigilant.es) by relay1.thorcom.net with esmtp (Exim 4.86) (envelope-from ) id 1ZnaIH-0002xv-Dd for rsgb_lf_group@blacksheep.org; Sat, 17 Oct 2015 23:50:42 +0100 Received: from servigilant.vigilant.local ([87.216.178.132]) by vigilant.es with MailEnable ESMTP; Sun, 18 Oct 2015 00:48:45 +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; Sun, 18 Oct 2015 00:49:10 +0200 From: =?iso-8859-1?Q?VIGILANT_Luis_Fern=E1ndez?= To: "rsgb_lf_group@blacksheep.org" Thread-Topic: LF: EA5DOM going vertical Thread-Index: AQHRCGG9wFizgMH7ikaxIJNDTXOPZp5vUyMAgABqEsv///hggIAAkkeG Date: Sat, 17 Oct 2015 22:49:09 +0000 Message-ID: <579355A36AEE9D4FA555C45D556003AB1B227D52@servigilant.vigilant.local> References: <579355A36AEE9D4FA555C45D556003AB1B227339@servigilant.vigilant.local>,<56221C58.8010200@posteo.de> <579355A36AEE9D4FA555C45D556003AB1B227788@servigilant.vigilant.local>,<56226EED.7020302@posteo.de> In-Reply-To: <56226EED.7020302@posteo.de> Accept-Language: es-ES, en-US Content-Language: es-ES X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [83.58.5.12] MIME-Version: 1.0 X-Scan-Signature: d9434a825c534179f910f74a4bf68703 Subject: Re: LF: EA5DOM going vertical Content-Type: multipart/alternative; boundary="_000_579355A36AEE9D4FA555C45D556003AB1B227D52servigilantvigi_" 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 10.1.3.10 Status: O X-Status: X-Keywords: X-UID: 4463 --_000_579355A36AEE9D4FA555C45D556003AB1B227D52servigilantvigi_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Stefan Yes. I have already doubled the voltage rate of the output filter. It was t= he second thing that failed when transmitting with the loop. Output ferrite transformer is also = cooled with fan and small aluminium heatshink. Temptation to keep transmitting is too strong ! = ;-) Fortunately, even severy mismatched, the vertical is stable as a rock. The = loop need continous watching because capacitors heat and mismatch drifts from on Tx to the next= one. A real hell ! It is just what you predicted :-) Of course I need help from you all to match the PA. I have finished the coi= l this afternoon 120 turns of 0.9mm enameled copper over 25cm composite pipe. The plan is no= t to use taps but use a ferrite transformer with taps to match. I have also an small vari= ometer which can be added I wonder if the 490pF vacuum variable capacitor can be of use at any point = in the matching Hope to get it installed soon 73 de Luis EA5DOM ________________________________ De: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org]= en nombre de DK7FC [selberdenken@posteo.de] Enviado: s=E1bado, 17 de octubre de 2015 17:53 Para: rsgb_lf_group@blacksheep.org Asunto: Re: LF: EA5DOM going vertical Hi Luis, Be careful with running a mismatched PA. It may not blow up the FETs but ma= ybe a C in the output filter. And the filter will not work very well too. I guess you know how to match the antenna to the PA. Or do you need some ad= vice and suggestions? 159V is nothing, it could be 20 dB more, easily. So i'm looking forward to = your loaded antenna :-) 73, Stefan Am 17.10.2015 16:33, schrieb VIGILANT Luis Fern=E1ndez: Thank you Stefan :-) This is being posible with the help of many friends found here in the refle= ctor, like you This morning I have added the loop to the ground side of the vertical (dipo= le). No difference in the loading. Still mismatched. The PA rms out is 159V and input power 9A= @12V That should be 62V rms over a 50Ohm load. Anyway much better and less stres= sing working conditions that a high Q loop and can run WSPRS every 8 minutes wit= hout problems For the QRSS-3 QSO can be tomorrow sunday evening. Today I'll be out and ju= st running WSPR What a coincidence ! It will also be my first QSO with DL on this band. In = fact, will be my first QSO in this band ! :) No pictures about the arrangement because there is no arrangement. Just the= vertical antenna The radial go down inside the building trought a ventilation pipe. Let's se= e tonight if the loop around the base of the vertical antenna makes some difference and can reach LA ! 73 de Luis EA5DOM ________________________________ De: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org] en nombre de DK7FC [selberdenken@posteo.de] Enviado: s=E1bado, 17 de octubre de 2015 12:00 Para: rsgb_lf_group@blacksheep.org Asunto: Re: LF: EA5DOM going vertical Hi Luis, My congrats!!! This is a very good result for an unloaded 10m vertical antenna! The coil will make a big difference, a few 10 dB i expect, although this is= hard to imagine since your reports are very good already. Do you like to try a QRSS-3 (or DFCW) QSO? :-) Would be my first on that ba= nd to EA. 73, Stefan PS: Show us some photos of the new arrangement. 19 spots: Timestamp Call MHz SNR Drift Grid Pwr Reporter = RGrid km az 2015-10-16 23:40 EA5DOM 0.475791 -30 0 IM= 98wn 0.05 DG3LV JO53gv 1887 22 2015-10-17 01:56 EA5DOM 0.475789 -29 0 IM= 98wn 0.05 PI4THT JO32kf 1613 17 2015-10-16 20:24 EA5DOM 0.475790 -25 0 IM= 98wn 0.05 DH5RAE JN68qv 1576 39 2015-10-17 00:24 EA5DOM 0.475788 -29 0 IM= 98wn 0.05 DJ0ABR JN68nt 1556 39 2015-10-16 23:40 EA5DOM 0.475789 -29 0 IM= 98wn 0.05 DF6MK JN68ik 1505 39 2015-10-16 20:40 EA5DOM 0.475789 -28 0 IM= 98wn 0.05 PA0RDT JO11tm 1470 10 2015-10-17 03:32 EA5DOM 0.475790 -24 0 IM= 98wn 0.05 G8HUH IO81mg 1430 352 2015-10-17 01:56 EA5DOM 0.475789 -33 0 IM= 98wn 0.05 G3XKR IO70ux 1419 348 2015-10-17 00:08 EA5DOM 0.475791 -20 0 IM= 98wn 0.05 DK7FC/P JN49ik 1398 27 2015-10-17 00:32 EA5DOM 0.475791 -30 0 IM= 98wn 0.05 DK7FC JN49ik 1398 27 2015-10-16 23:24 EA5DOM 0.475789 -28 0 IM= 98wn 0.05 DL6RCN JN58kg 1395 36 2015-10-17 02:00 EA5DOM 0.475789 -25 0 IM= 98wn 0.05 F6CNI JN19qb 1200 12 2015-10-17 04:48 EA5DOM 0.475790 -29 0 IM= 98wn 0.05 F4HBT JN08qx 1164 5 2015-10-16 22:32 EA5DOM 0.475789 -30 0 IM= 98wn 0.05 F6GEX IN97na 942 357 2015-10-17 02:56 EA5DOM 0.475791 -29 0 IM= 98wn 0.05 F1AFJ JN06ht 919 4 2015-10-17 02:00 EA5DOM 0.475789 -29 0 IM= 98wn 0.05 F5OZF IN94su 700 358 2015-10-17 03:24 EA5DOM 0.475792 -18 0 IM= 98wn 0.05 EA2HB IN93ah 550 344 2015-10-17 00:00 EA5DOM 0.475789 -25 0 IM= 98wn 0.05 EB3FRN JN01mc 300 19 2015-10-17 05:48 EA5DOM 0.475789 +4 0 IM= 98wn 0.05 EA5DOM-1 IM98xn 7 90 Am 17.10.2015 00:28, schrieb VIGILANT Luis Fern=E1ndez: New experiment ongoing tonight :-) Just the 10,25m vertical with one vertical radial about 11m long hanging do= wn A vertical dipole, really No coil, no adaptation. Have used this with the bare U3 and thought it woul= d not be possible to use the PA due to mismatch. But tried .... and it is not so bad= :-O Reports from EU stations show that the vertical radiates much better Dx sig= nal than the horizontal loop, even counting on the crude feeding system used We all knew that. Just a confirmation ;-) Working in the coil this weekend Keep tuned 73 de Luis EA5DOM --_000_579355A36AEE9D4FA555C45D556003AB1B227D52servigilantvigi_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hi Stefan

Yes. I have already doubled the voltage rate of the output filter. It = was the second thing that
failed when transmitting with the loop. Output ferrite transformer is = also cooled with fan and
small aluminium heatshink. Temptation to keep transmitting is too stro= ng ! ;-)

Fortunately, even severy mismatched, the vertical is stable as a rock.= The loop need continous
watching because capacitors heat and mismatch drifts from on Tx to the= next one. A real hell !
It is just what you predicted  :-) 

Of course I need help from you all to match the PA. I have finished th= e coil this afternoon
120 turns of 0.9mm enameled copper over 25cm composite pipe. The plan = is not to use taps
but use a ferrite transformer with taps to match. I have also an small= variometer which can be
added

I wonder if the 490pF vacuum variable capacitor can be of use at any p= oint in the matching

Hope to get it installed soon

73 de Luis
EA5DOM
De: owner-rsgb_lf_group@blacksheep.org [o= wner-rsgb_lf_group@blacksheep.org] en nombre de DK7FC [selberdenken@posteo.= de]
Enviado: s=E1bado, 17 de octubre de 2015 17:53
Para: rsgb_lf_group@blacksheep.org
Asunto: Re: LF: EA5DOM going vertical

Hi Luis,

Be careful with running a mismatched PA. It may not blow up the FETs but ma= ybe a C in the output filter. And the filter will not work very well too. I guess you know how to match the antenna to the PA. Or do you need some ad= vice and suggestions?
159V is nothing, it could be 20 dB more, easily. So i'm looking forward to = your loaded antenna :-)

73, Stefan

Am 17.10.2015 16:33, schrieb VIGILANT Luis Fern=E1ndez:
Thank you Stefan :-)

This is being posible with the help of many friends found here in the = reflector, like you

This morning I have added the loop to the ground side of the vertical = (dipole). No difference
in the loading. Still mismatched. The PA rms out is 159V and input pow= er 9A@12V
That should be 62V rms over a 50Ohm load. Anyway much better and less = stressing
working conditions that a high Q loop and can run WSPRS every 8 minute= s without problems

For the QRSS-3 QSO can be tomorrow sunday evening. Today I'll be out a= nd just running WSPR

What a coincidence ! It will also be my first QSO with DL on this band= . In fact, will be my first QSO
in this band ! :)

No pictures about the arrangement because there is no arrangement. Jus= t the vertical antenna
The radial go down inside the building trought a ventilation pipe. Let= 's see tonight if the loop around
the base of the vertical antenna makes some difference and can reach L= A ! 

73 de Luis
EA5DOM
De: owner-rsgb_lf_group@blacksheep.org [own= er-rsgb_lf_group@blacksheep.org] en nombre de DK7FC [selberdenken@posteo.de]
Enviado: s=E1bado, 17 de octubre de 2015 12:00
Para: rsgb_lf_group@blacksheep.org
Asunto: Re: LF: EA5DOM going vertical

Hi Luis,

My congrats!!!
This is a very good result for an unloaded 10m vertical antenna!
The coil will make a big difference, a few 10 dB i expect, although this is= hard to imagine since your reports are very good already.

Do you like to try a QRSS-3 (or DFCW) QSO? :-) Would be my first on that ba= nd to EA.

73, Stefan

PS: Show us some photos of the new arrangement.

19 spots:

Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az
 2015-10-16 23:40   EA5DOM   0.475791   -30   0   IM98wn   0.05   DG3LV   JO53gv   1887   22 
 2015-10-17 01:56   EA5DOM   0.475789   -29   0   IM98wn   0.05   PI4THT   JO32kf   1613   17 
 2015-10-16 20:24   EA5DOM   0.475790   -25   0   IM98wn   0.05   DH5RAE   JN68qv   1576   39 
 2015-10-17 00:24   EA5DOM   0.475788   -29   0   IM98wn   0.05   DJ0ABR   JN68nt   1556   39 
 2015-10-16 23:40   EA5DOM   0.475789   -29   0   IM98wn   0.05   DF6MK   JN68ik   1505   39 
 2015-10-16 20:40   EA5DOM   0.475789   -28   0   IM98wn   0.05   PA0RDT   JO11tm   1470   10 
 2015-10-17 03:32   EA5DOM   0.475790   -24   0   IM98wn   0.05   G8HUH   IO81mg   1430   352 
 2015-10-17 01:56   EA5DOM   0.475789   -33   0   IM98wn   0.05   G3XKR   IO70ux   1419   348 
 2015-10-17 00:08   EA5DOM   0.475791   -20   0   IM98wn   0.05   DK7FC/P   JN49ik   1398   27 
 2015-10-17 00:32   EA5DOM   0.475791   -30   0   IM98wn   0.05   DK7FC   JN49ik   1398   27 
 2015-10-16 23:24   EA5DOM   0.475789   -28   0   IM98wn   0.05   DL6RCN   JN58kg   1395   36 
 2015-10-17 02:00   EA5DOM   0.475789   -25   0   IM98wn   0.05   F6CNI   JN19qb   1200   12 
 2015-10-17 04:48   EA5DOM   0.475790   -29   0   IM98wn   0.05   F4HBT   JN08qx   1164   5 
 2015-10-16 22:32   EA5DOM   0.475789   -30   0   IM98wn   0.05   F6GEX   IN97na   942   357 
 2015-10-17 02:56   EA5DOM   0.475791   -29   0   IM98wn   0.05   F1AFJ   JN06ht   919   4 
 2015-10-17 02:00   EA5DOM   0.475789   -29   0   IM98wn   0.05   F5OZF   IN94su   700   358 
 2015-10-17 03:24   EA5DOM   0.475792   -18   0   IM98wn   0.05   EA2HB   IN93ah   550   344 
 2015-10-17 00:00   EA5DOM   0.475789   -25   0   IM98wn   0.05   EB3FRN   JN01mc   300   19 
 2015-10-17 05:48   EA5DOM   0.475789   +4   0   IM98wn   0.05   EA5DOM-1   IM98xn   7   90 


Am 17.10.2015 00:28, schrieb VIGILANT Luis Fern=E1ndez:
New experiment ongoing tonight :-)

Just the 10,25m vertical with one vertical radial about 11m long hangi= ng down
A vertical dipole, really

No coil, no adaptation. Have used this with the bare U3 and thought it= would not be
possible to use the PA due to mismatch. But tried .... and it is not s= o bad :-O

Reports from EU stations show that the vertical radiates much better D= x signal
than the horizontal loop, even counting on the crude feeding system us= ed
We all knew that. Just a confirmation ;-)

Working in the coil this weekend
Keep tuned 

73 de Luis
EA5DOM
--_000_579355A36AEE9D4FA555C45D556003AB1B227D52servigilantvigi_--