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LF: RE: DL4RAJ_OK2BVG_WSPR

To: <[email protected]>
Subject: LF: RE: DL4RAJ_OK2BVG_WSPR
From: "Clemens Paul" <[email protected]>
Date: Sun, 20 Jan 2019 16:24:39 +0100
In-reply-to: <[email protected]>
References: <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
Thread-index: AdSwx/U9wJXVroqVSeS/ey0aNoJpRgACnDTQ
Hi Lubos,

thanks for the description of your improved TX and RX antenna.
My antenna is a fullsize halfwave dipole at 8m height at the feeding point,
ends go up to 10m /15m height.
It is fed by 42m balanced open feeder line and matched to 50 Ohms by series
silver mica Cs (system resonance is below 470kHz) with about 1.5nF in each leg. 
 
For local noise reduction an effective current balun was essential.
See attached pictures and provided link below.

Ant.2x155m Dipol;
RX Perseus
http://k7fry.com/grid/?qth=JN68KJ79WJ

73
Clemens
DL4RAJ 

>-----Original Message-----
>From: [email protected] 
>[mailto:[email protected]] On Behalf Of lubos
>Sent: Sunday, January 20, 2019 2:54 PM
>To: [email protected]
>Subject: LF: DL4RAJ_OK2BVG_WSPR
>
>Hallo Clemets!
>Thanks for your report, I am pleased! :-)
>Well, my antenna is still "Marconi T" 40m high, but I 
>decreased ground losses and  the professional loading coil is 
>in using now (It is made from thick litz wire)
>
>I am sure, your receiving  equipment for 630m band is GREAT.  
>It is usefull to compare your and my results. For example WSPR 
>spots more than 1300km, last night:
>
> 2019-01-20 01:40      AA1A       0.475675      -29      0     
> FN42pb      5      OK2BVG      JN88ks      6490      51      21 
> 2019-01-20 06:30      W1IR       0.475761      -29      0     
> FN34lp      5      OK2BVG      JN88ks      6455      51      1 
> 2019-01-19 19:02      EI0CF      0.475689      -17      0     
> IO65ih      0.2    OK2BVG      JN88ks      1794      104      8 
> 2019-01-20 04:30      G3WCB      0.475606      -29      0     
> IO80ei      0.001  OK2BVG      JN88ks      1484      89      4 
> 2019-01-19 19:40      G8HUH      0.475672      -13      0     
> IO81mg      1      OK2BVG      JN88ks      1439      93      9 
> 2019-01-19 19:42      G4MSN      0.475671      -23      0     
> IO93fu      0.2    OK2BVG      JN88ks      1394      106      12 
> 2019-01-19 18:42      G0MRF      0.475785      -3       0     
> IO91fr       5     OK2BVG      JN88ks      1346      97      82 
> 2019-01-19 08:12      G3KEV      0.475666      -16      0     
> IO94sh      5      OK2BVG      JN88ks      1343      110      2 
> 2019-01-19 23:00      F5MAF      0.475702      -26      0     
> JN03pq      0.01   OK2BVG      JN88ks      1322      59      3 
>
>
>
> 2019-01-20 02:36      K5DNL      0.475791      -27      0     
> EM15lj      5      DL4RAJ      JN68kj      8406      40      7 
> 2019-01-20 02:58      W4BCX      0.475722      -31      0     
> EL98pd      50     DL4RAJ      JN68kj      7958      44      1 
> 2019-01-20 05:26      AA1A       0.475673      -25      0     
> FN42pb      5      DL4RAJ      JN68kj      6251      53      55 
> 2019-01-20 05:26      W1IR       0.475759      -24      0     
> FN34lp      5      DL4RAJ      JN68kj      6228      53      9 
> 2019-01-19 10:14      EI0CF      0.475687      -18      0     
> IO65ih      0.2    DL4RAJ      JN68kj      1576      111      16 
> 2019-01-19 07:58      GM3YXM     0.475751      -18      0     
> IO75xc      0.2    DL4RAJ      JN68kj      1377      116      4 
>
>The JN88KS  locator is about 200km further East of course :-) 
>My receiving antenna is home made tuned loop + preamplifier. 
>The diameter is 1,7m, it has been made from coaxial cable  (3 
>turns) and it is 5m up the ground only :-)
>What is your receiving antenna for WSPR, please?
>
>73!
>Lubos, OK2BVG
>*******************************************
>
>
>Dne 19.1.2019 v 20:06 Clemens Paul napsal(a):
>
>
>       Hi Lubos, 
>       
>
>               BTW - I compare your and my WSPR list from 630m 
>every morning. It is 
>               interesting. I am testing my new receiving loop antenna.
>
>       
>       Aah,good to know. :-)
>       I noticed your callsign several times when checking the 
>database for T/A spots but was not aware
>       anymore that OK2BVG is YOU.
>       Your loop seems to perform quite well.
>       Which improvements have you done to your TX antenna?
>       Is it higher than 40m now or did you modify the top load?
>       Signal is S9+3dB just now.
>       
>       73
>       Clemens
>       DL4RAJ 
>       
>       
>
>               -----Original Message-----
>               From: [email protected] 
>               [mailto:[email protected]] On 
>Behalf Of lubos
>               Sent: Saturday, January 19, 2019 6:33 PM
>               To: [email protected]
>               Subject: Re: LF: RE: OK0EMW_again
>               
>               Hallo Clemens!
>               Thanks for nice report!
>               BTW - I compare your and my WSPR list from 630m 
>every morning. It is 
>               interesting. I am testing my new receiving loop antenna.
>               
>               73!
>               Lubos, OK2BVG
>               ***************************************
>
>       
>       
>
>
>
>
>________________________________
>
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>

Attachment: matched mw dipole.gif
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Attachment: Dipol 2x156m.JPG
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