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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: Sun, 29 Nov 2015 20:27:56 +0000
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Thread-index: AdEp+uYLacwndmH9Q2i3zxwn+RVSMwAH5HDH///3/QCAAYriTIAAD1DI
Thread-topic: LF: EA5DOM back to MF, but QRP at the moment
Not bad in Opera Deep Search so far
Real decode, as proved with my own monitor decode one minute earlier

19:47    477 EA5DOM de EI8JK Op8 Deep Search 1632 km -36 dB in Bantry, South West Ireland 1520.5 Hz
19:46    477 EA5DOM de EA5DOM Op8 0 km -1 dB F:1%_End in Albir 1519,0 Hz

And much shorter in WSPR, as exected

2015-11-29 20:00   EA5DOM   0.475608   -29   0   IM98wn   0.05   F6GEX   IN97na   942   357 
 2015-11-29 20:00   EA5DOM   0.475610   -16   0   IM98wn   0.05   F1AFJ   JN06ht   919   4 
 2015-11-29 20:12   EA5DOM   0.475610   -16   0   IM98wn   0.05   F1AFJ   JN06ht   919   4

I'm going to measure the output power of U3. Just curious ! ;-)

73 de Luis
EA5DOM

De: [email protected] [[email protected]] en nombre de VIGILANT Luis Fernández [[email protected]]
Enviado: domingo, 29 de noviembre de 2015 20:30
Para: [email protected]
Asunto: Re: LF: EA5DOM back to MF, but QRP at the moment

Hi Graham, MF

Good idea. Let's see where is the imit

I have just connected the U3 directly to antenna. Have not measured power yet but may be under 500mW
I'm not using the 3xBS170 but a mosfet driver instead, ICL7667 if I can recall correctly

Spots in WSPR dropped to just the EA monitors

73 de Luis 
EA5DOM

De: [email protected] [[email protected]] en nombre de Graham [[email protected]]
Enviado: sábado, 28 de noviembre de 2015 21:53
Para: [email protected]
Asunto: Re: LF: EA5DOM back to MF, but QRP at the moment

Hi Luis
 
Nice going  for  5  watts,  but  -8 dB  with  75 % of the  signal  recovered ,  your  nearly  +30 over the  limit .. can you drop the  power down by  20 dB ?  say 50 mW ??
 
73-G,
 

20:46 477 EA5DOM de G3XKR Op8 -8 dB F:24% in BIDEFORD Devon

20:34 477 EA5DOM Op8 1520.0 Hz -28 dB |---------- - -- | Fade: 15%

20:23 477 EA5DOM Op8 Deep Search -35 dB 1520.0 Hz

20:22 477 SO5AS Op8 1496.1 Hz -27 dB |------------| Fade: 3%

20:10 477 EA5DOM Op8 1519.8 Hz -29 dB |---------- | Fade: 7%

 

Sent: Saturday, November 28, 2015 8:22 PM
Subject: LF: EA5DOM back to MF, but QRP at the moment

Hi MF

Back home !

Antenna is up again and I' transmitting with only 5W from a small PA

I will take the opportunity to install the 100W PA in the terrace, as originally planned

Txing WSPR and Opera8 every 12 minutes

73 de Luis
EA5DOM
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