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LF: RE: EA5DOM-->FR5DH MF spots

from [VIGILANT Luis Fernández] [Permanent Link][Original]
To: "[email protected]" <[email protected]>
Subject: LF: RE: EA5DOM-->FR5DH MF spots
From: VIGILANT Luis Fernández <[email protected]>
Date: Mon, 11 Jun 2018 08:10:59 +0000
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Thread-topic: EA5DOM-->FR5DH MF spots

Hi MF

 

I did not transmitted the nights of June 8th and 9th

 

Last night June 10th Pascal could also report Mal G3KEV once. Good to be not alone ;-)

 

2018-06-10 23:32              G3KEV                  0.475659              -28         0             IO94sh                 5             FR5DH  LG78pw               9915       130

 

Interesting to note that Mal got his decode very early in the night. My decodes started later al 01:10 ending at 02:20, probably

about sunrise at Reunion (UTC+4)

 

2018-06-11 02:20              EA5DOM             0.475608              -27         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-11 02:10             EA5DOM             0.475608              -26         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-11 02:00             EA5DOM             0.475608              -28         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-11 01:20             EA5DOM             0.475608              -30         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-11 01:10             EA5DOM             0.475608              -30         0             IM98xn                1             FR5DH  LG78pw               8783       129

 

73 de Luis

EA5DOM

 

De: [email protected] [mailto:[email protected]] En nombre de VIGILANT Luis Fernández
Enviado el: viernes, 08 de junio de 2018 10:09
Para: [email protected]
Asunto: LF: RE: EA5DOM-->FR5DH MF spots

 

Hi MF

 

Just for statistic purposes I’m keeping sending this info to the group

One more night of transmissions and decodes at Reunion

 

2018-06-08 02:00              EA5DOM             0.475608              -30         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-08 01:20             EA5DOM             0.475608              -27         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-08 00:30             EA5DOM             0.475608              -27         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-08 00:20             EA5DOM             0.475608              -25         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-08 00:00             EA5DOM             0.475608              -28         0             IM98xn                1             FR5DH  LG78pw               8783       129

 

73 de Luis

EA5DOM

 

De: [email protected] [mailto:[email protected]] En nombre de VIGILANT Luis Fernández
Enviado el: miércoles, 06 de junio de 2018 9:23
Para: [email protected]
Asunto: LF: RE: EA5DOM-->FR5DH MF spots

 

Hi MF

 

Last night, geomagnetic activity was low and DST rised again. And that means another night of good conditions

A total of 18 decodes over mutual dark path to Reunion, best -25dB

 

2018-06-06 02:20              EA5DOM             0.475608              -27         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-06 02:00             EA5DOM             0.475608              -30         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-06 01:50             EA5DOM             0.475608              -26         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-06 01:30             EA5DOM             0.475608              -27         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-06 01:20             EA5DOM             0.475608              -29         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-06 01:00             EA5DOM             0.475608              -30         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-06 00:20             EA5DOM             0.475608              -29         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-05 23:40             EA5DOM             0.475608              -29         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-05 23:30             EA5DOM             0.475608              -29         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-05 23:20             EA5DOM             0.475608              -29         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-05 23:00             EA5DOM             0.475608              -26         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-05 22:50             EA5DOM             0.475608              -25         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-05 22:30             EA5DOM             0.475608              -29         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-05 22:20             EA5DOM             0.475608              -25         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-05 22:10             EA5DOM             0.475608              -30         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-05 21:20             EA5DOM             0.475608              -30         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-05 20:50             EA5DOM             0.475608              -30         0             IM98xn                1             FR5DH  LG78pw               8783       129

 2018-06-05 20:30             EA5DOM             0.475608              -26         0             IM98xn                1             FR5DH  LG78pw               8783       129

 

Good conditions also to the East. Got decodes from R3LW at almost 3000Km and ground path

 

2018-06-06 00:00              EA5DOM             0.475610              -28         0             IM98xn                1             R3LW    KO54mq              2935       42

 2018-06-06 00:50             EA5DOM             0.475610              -26         0             IM98xn                1             R3LW    KO54mq              2935       42

 2018-06-05 23:50             EA5DOM             0.475610              -27         0             IM98xn                1             R3LW    KO54mq              2935       42

 

73 de Luis

EA5DOM

 

 

De: [email protected] [mailto:[email protected]g] En nombre de VIGILANT Luis Fernández
Enviado el: sábado, 26 de mayo de 2018 12:27
Para: [email protected]
Asunto: LF: Re: EA5DOM-->FR5DH MF spots

 

Hi MF

 

Another night of spots. DST reached 10. Geomagnetic activity and flares were quiet

 

2018-05-25 23:50  EA5DOM  0.475608  -29  0  IM98xn  1  FR5DH  LG78pw  8783  129  

2018-05-25 23:00  EA5DOM  0.475608  -30  0  IM98xn  1  FR5DH  LG78pw  8783  129  

2018-05-25 22:30  EA5DOM  0.475608  -29  0  IM98xn  1  FR5DH  LG78pw  8783  129  

2018-05-25 21:00  EA5DOM  0.475608  -31  0  IM98xn  1  FR5DH  LG78pw  8783  129  

2018-05-25 20:50  EA5DOM  0.475608  -29  0  IM98xn  1  FR5DH  LG78pw  8783  129  

2018-05-25 20:40  EA5DOM  0.475608  -29  0  IM98xn  1  FR5DH  LG78pw  8783  129 

 

73 de Luis

EA5DOM

 

De: [email protected] [[email protected]] en nombre de VIGILANT Luis Fernández [[email protected]]
Enviado: viernes, 25 de mayo de 2018 10:40
Para: [email protected]
Asunto: LF: EA5DOM-->FR5DH MF spots

Hi  MF

 

Last night two unique decodes from Pascal, FR5DH. There were no decodes since may 21th

 

 2018-05-25 01:30 

 EA5DOM 

 0.475608 

 -30 

 0 

 IM98xn 

 1 

 FR5DH 

 LG78pw 

 8783 

 129 

 2018-05-24 22:30 

 EA5DOM 

 0.475608 

 -26 

 0 

 IM98xn 

 1 

 FR5DH 

 LG78pw 

 8783 

 129 

 

The DST has been high this days but there were many Solar X ray flares untill this settle down yesterday

 

Almost one moth for solstice and counting ! ;-)

 

73 de Luis

EA5DOM

 

De: [email protected] [mailto:[email protected]] En nombre de VIGILANT Luis Fernández
Enviado el: lunes, 21 de mayo de 2018 10:47
Para: [email protected]
Asunto: LF: RV: EA5DOM-->FR5DH 16spots last night

 

Hi MF

 

On more night of good conditions as DST keeps up http://wdc.kugi.kyoto-u.ac.jp/dst_realtime/presentmonth/

 

2018-05-21 01:20  EA5DOM  0.475608  -31  0  IM98xn  1  FR5DH  LG78pw  8783  129  

2018-05-21 00:20  EA5DOM  0.475608  -29  0  IM98xn  1  FR5DH  LG78pw  8783  129  

2018-05-20 23:50  EA5DOM  0.475608  -30  0  IM98xn  1  FR5DH  LG78pw  8783  129  

2018-05-20 23:40  EA5DOM  0.475608  -30  0  IM98xn  1  FR5DH  LG78pw  8783  129

2018-05-20 23:10  EA5DOM  0.475608  -24  0  IM98xn  1  FR5DH  LG78pw  8783  129 

2018-05-20 23:00  EA5DOM  0.475608  -29  0  IM98xn  1  FR5DH  LG78pw  8783  129 

 

73 de Luis

EA5DOM

 

De: [email protected] [mailto:[email protected]] En nombre de VIGILANT Luis Fernández
Enviado el: domingo, 20 de mayo de 2018 13:08
Para: [email protected]
Asunto: LF: Re: EA5DOM-->FR5DH 16spots last night

 

Hi Pascal, MF

 

Last night we got some spots again

 

2018-05-20 01:40  EA5DOM  0.475608  -28  0  IM98xn  1  FR5DH  LG78pw  8783  129  

2018-05-20 01:20  EA5DOM  0.475608  -28  0  IM98xn  1  FR5DH  LG78pw  8783  129  

2018-05-20 01:00  EA5DOM  0.475608  -30  0  IM98xn  1  FR5DH  LG78pw  8783  129  

2018-05-19 23:40  EA5DOM  0.475608  -32  0  IM98xn  1  FR5DH  LG78pw  8783  129  

2018-05-19 21:30  EA5DOM  0.475608  -30  0  IM98xn  1  FR5DH  LG78pw  8783  129  

2018-05-19 21:20  EA5DOM  0.475608  -28  0  IM98xn  1  FR5DH  LG78pw  8783  129  

2018-05-19 21:00  EA5DOM  0.475608  -30  0  IM98xn  1  FR5DH  LG78pw  8783  129  

2018-05-19 20:10  EA5DOM  0.475608  -31  0  IM98xn  1  FR5DH  LG78pw  8783  129 

 

I'm afraid (and really hope) that there is no correlation between earthquakes and MF propagation

 

But really wondering why I'm getting so good chances in this path. It is not by brute force and ERP power

So, the other possibility is antenna radiation pattern in vertical plane. The 90m vertical has probably a

very low radiation pattern. And at sea coast that means even more chances to get a very flat take off

angle to FR5. So low that may be I can reach there with four hops instead of five, which would be the

case for an average antenna with higer radiation angle

 

Four hops for 8783Km distance is about 2196Km per hop. Which is under the theoretical maximum

of 2235Km for an E layer situated at 100Km height

 

Path profile from here to Reunion, providing four 2196Km hops shows that first hop would land in south

Libya desert area, second in Sudan desert and third into the ocean, not far away from the coast of Kenia

That third bouncing in sea water would be a bonus for a weak signal to reach Reunion in the next bounce at 

decodable levels. With five shorter hops the third would land on ground and the extra attenuation may

left no much for a fourth hop to the ocean and then a five one

 

This are just my thoughts. Would be interesting to know experts opinion

 

73 de Luis

EA5DOM

De: [email protected] [[email protected]] en nombre de Pascal Deveaux [[email protected]]
Enviado: sábado, 19 de mayo de 2018 7:50
Para: [email protected]
Asunto: LF: EA5DOM-->FR5DH 16spots last night

Hi MF,
I am not a specialist in the MF propagation and earthquakes, but I ask if the recent earthquakes in Mayotte Island have influenced the reception here. Mayotte is on the path between EA and FR:


 2018-05-19 02:20  EA5DOM  0.475608  -28  0  IM98xn  1  FR5DH  LG78pw  8783  129  2018-05-19 01:50  EA5DOM  0.475608  -26  0  IM98xn  1  FR5DH  LG78pw  8783  129  2018-05-19 01:40  EA5DOM  0.475608  -27  0  IM98xn  1  FR5DH  LG78pw  8783  129  2018-05-19 01:30  EA5DOM  0.475608  -29  0  IM98xn  1  FR5DH  LG78pw  8783  129  2018-05-19 01:20  EA5DOM  0.475608  -26  0  IM98xn  1  FR5DH  LG78pw  8783  129  2018-05-19 00:50  EA5DOM  0.475608  -28  0  IM98xn  1  FR5DH  LG78pw  8783  129  2018-05-19 00:30  EA5DOM  0.475608  -28  0  IM98xn  1  FR5DH  LG78pw  8783  129  2018-05-19 00:00  EA5DOM  0.475608  -30  0  IM98xn  1  FR5DH  LG78pw  8783  129  2018-05-18 23:30  EA5DOM  0.475608  -28  0  IM98xn  1  FR5DH  LG78pw  8783  129  2018-05-18 23:10  EA5DOM  0.475608  -20  0  IM98xn  1  FR5DH  LG78pw  8783  129  2018-05-18 22:50  EA5DOM  0.475608  -28  0  IM98xn  1  FR5DH  LG78pw  8783  129  2018-05-18 22:30  EA5DOM  0.475608  -28  0  IM98xn  1  FR5DH  LG78pw  8783  129  2018-05-18 22:20  EA5DOM  0.475608  -30  0  IM98xn  1  FR5DH  LG78pw  8783  129  2018-05-18 22:10  EA5DOM  0.475608  -27  0  IM98xn  1  FR5DH  LG78pw  8783  129  2018-05-18 22:00  EA5DOM  0.475608  -23  0  IM98xn  1  FR5DH  LG78pw  8783  129  2018-05-18 21:10  EA5DOM  0.475608  -28  0  IM98xn  1  FR5DH  LG78pw  8783  129 

73, Pascal

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