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Re: LF: EA5DOM back to MF, but QRP at the moment

To: "[email protected]" <[email protected]>
Subject: Re: LF: EA5DOM back to MF, but QRP at the moment
From: VIGILANT Luis Fernández <[email protected]>
Date: Tue, 1 Dec 2015 20:16:30 +0000
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Thread-topic: LF: EA5DOM back to MF, but QRP at the moment
Wow. We have a winner

Congratulations Andy !  Fantastic spots -25dB using only 11mW here

2015-12-01 19:36   EA5DOM   0.475610   -25   0   IM98wn   0.01   F1AFJ   JN06ht   919   4 
 2015-12-01 19:24   EA5DOM   0.475610   -25   0   IM98wn   0.01   F1AFJ   JN06ht   919   4 

I wonder if there is al least 1mW ERP out ! Still a lot of room for Opera Deep Search spots

Any other taker ?

73 de Luis
EA5DOM

De: [email protected] [[email protected]] en nombre de VIGILANT Luis Fernández [[email protected]]
Enviado: martes, 1 de diciembre de 2015 16:23
Para: [email protected]
Asunto: Re: LF: EA5DOM back to MF, but QRP at the moment

OK Graham, there we are ! ;-)

0,742V RMS over 50Ohm. That's 11mW

Can see 1dB down in my WSPR monitor at 7Km. Reports from EA5CV which were about -25dB are nill now

Really challenging for me and for RX stations. Probably will get some spots from EA5CV and EA2HB during
the night, but for >1000Km paths it will be very hard, depending on propagation conditions and noise floor

WSPR power message set to 10dBm and Opera info changed to 0,01w

Make your bet ! ;-)

73 de Luis
EA5DOM

De: [email protected] [[email protected]] en nombre de Graham [[email protected]]
Enviado: martes, 1 de diciembre de 2015 14:26
Para: [email protected]
Asunto: Re: LF: EA5DOM back to MF, but QRP at the moment

Getting there  Luis !
 
Your 6 dB  in hand  with  G3XKR ,   may be more with G8HUH ,
 
Go for the  big  1-0    TEN    mW , the  stats are not  good ,  you  need  to  get a  peak  aligned with the  qsb , but  with   8% fade , but, signal must be  holding  up ...
 
73-G,

Sent: Tuesday, December 01, 2015 8:23 AM
Subject: Re: LF: EA5DOM back to MF, but QRP at the moment

Hi MF

Yet some remarkable results with 51mW. May be propagation conditions lowered extra dBs

Anyway, in Opera got a -30dB decode from G3XKR and Deep Search -37dB from SV8CS-5 at 1819Km

00:34    477 EA5DOM de EA5DOM Op8 0 km +0 dB F:1%_End in Albir 1519,0 Hz with 0.05w + Vert 11+80m
00:34    477 EA5DOM de G3XKR Op8 -30 dB F:8% in BIDEFORD Devon

01:47    477 EA5DOM de SV8CS-5 Op8 Deep Search 1819 km -37 dB in Zakynthos 1519.5 Hz with 0.05w + Vert 11+80m
01:46    477 EA5DOM de EA5DOM Op8 0 km +1 dB F:2% in Albir 1519,0 Hz with 0.05w + Vert 11+80m

In WSPR best distance and SNR spots from:

2015-12-01 03:00   EA5DOM   0.475607   -27   0   IM98wn   0.02   DH5RAE   JN68qv   1576   39 
2015-11-30 22:00   EA5DOM   0.475607   -29   0   IM98wn   0.02   DJ0ABR   JN68nt   1556   39
2015-12-01 03:00   EA5DOM   0.475608   -30   0   IM98wn   0.02   G3XKR   IO70ux   1419   348
2015-11-30 23:12   EA5DOM   0.475608   -22   0   IM98wn   0.02   F5WK   IN99ef   1192   355

Should I get down another 3dB to 25mW and still spotted by F5WK ?? :-O

Congratulations to all this stations for their superb RX ! 

73 de Luis
EA5DOM

De: [email protected] [[email protected]] en nombre de VIGILANT Luis Fernández [[email protected]]
Enviado: lunes, 30 de noviembre de 2015 21:03
Para: [email protected]
Asunto: Re: LF: EA5DOM back to MF, but QRP at the moment

Let's go step by step

3db down now: 1,60V RMS 51mW

Same signals on my monitor and some drop on F5WK and EA5CV reports

73 de Luis
EA5DOM

De: [email protected] [[email protected]] en nombre de Graham [[email protected]]
Enviado: lunes, 30 de noviembre de 2015 19:14
Para: [email protected]
Asunto: Re: LF: EA5DOM back to MF, but QRP at the moment

..  May be   10 dB at  least !
 
G,

Sent: Monday, November 30, 2015 5:53 PM
Subject: RE: LF: EA5DOM back to MF, but QRP at the moment

Hi Graham, MF
 
Yes. The efficiency of this antenna setup is really outstanding  :-O
I can clearly see the signal on my monitor waterfall at 7Km when injecting -33dBm
 
Just at sunset between EA and DL I got two WSPR decodes from DH5RAE and DJ0ABR
 
2015-11-30 16:00   EA5DOM   0.475608   -29   0   IM98wn   0.05   DJ0ABR   JN68nt   1556   39 
 2015-11-30 16:00   EA5DOM   0.475614   -22   0   IM98wn   0.05   EA5CV   IM98ol   59   261 
 2015-11-30 16:00   EA5DOM   0.475607   -31   0   IM98wn   0.05   DH5RAE   JN68qv   1576   39 
 
I have the 3dB atenuator ready to be installed. Will do it when I get home in a couple of hours
and will change the WSPR tx power indicator and Opera info to notice the change
 
73 de Luis
EA5DOM

De: [email protected] [mailto:[email protected]] En nombre de Graham
Enviado el: lunes, 30 de noviembre de 2015 18:13
Para: [email protected]
Asunto: Re: LF: EA5DOM back to MF, but QRP at the moment

Luis
 
That's just 'a silly ,   -18 dB   with  G8HUH ,  I thought  you  where  running  QRP, that's  close to  20 dB  QRO  jiji
 
73-G,
 
 
From EA5DOM by G8HUH Loc IO81MG
Frequency: 0.477 MHz (600m), OPERA, -18dB
 
All OP8  decodes from  psk-map
 
EA5DOM SO5AS 600m OPERA 2210 km 18:10:11
EA5DOM SV8CS-5 600m OPERA 1820 km 18:46:12
SV8CS EA5DOM 600m OPERA 1819 km 19:20:11
EA5DOM EI8JK 600m OPERA 1633 km 18:46:12
EA5DOM G8HUH 600m OPERA 1430 km 18:22:12
EA5DOM G3XKR 600m OPERA 1420 km 23:10:11
 
 
 

Sent: Monday, November 30, 2015 11:48 AM
Subject: RE: LF: EA5DOM back to MF, but QRP at the moment

Thank you Tony
 
That explains the radical propagation change ! :-)
 
Thank you for keeping your monitor working
 
73 de Luis
EA5DOM


De: [email protected] [mailto:[email protected]] En nombre de Tony Baldwin
Enviado el: lunes, 30 de noviembre de 2015 9:34
Para: [email protected]
Asunto: Re: LF: EA5DOM back to MF, but QRP at the moment

Luis, I switched my radio off last night at about 23:30 utc.
I will leave it running opera all night tonight if you want to try different power levels again.
73, Tony, EI8JK
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