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RE: LF: Re: New QRPPP test to night on WSPR 2 MF

To: "[email protected]" <[email protected]>
Subject: RE: LF: Re: New QRPPP test to night on WSPR 2 MF
From: VIGILANT Luis Fernández <[email protected]>
Date: Tue, 28 Apr 2015 08:34:39 +0000
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Thread-topic: LF: Re: New QRPPP test to night on WSPR 2 MF
Thank you Stefan
 
Forgot to mention I'm transmitting WSPR-2 + Opera8 frames consecutively
Using Deep Search Op8 I have got many reports from Iban EB3FRN and David EA1FAQ
 
The closer station is Maxi EA5CV. But he lacks a good Rx and antenna for MF
Unfortunately there is no interest at all in the local hams for activities other than DX pileups in HF
and summit activations on 40m during weekends. Ah! .... and some digital voices modes too
 
My best reference is my own Rx site at 7Km using MiniWhip and Perseus + SDR-Console V2
which provides up to 6 VFOs sending each the audio stream to a different decoder
 
The nice side of QRPP is that any small change worth the efforts. And there is plenty of room for improving !
 
Tx running 7/24. Water cooling the 2xBS170 but it worths !!! ;-)
 
73 de Luis
EA5DOM

De: [email protected] [mailto:[email protected]] En nombre de DK7FC
Enviado el: lunes, 27 de abril de 2015 19:36
Para: [email protected]
Asunto: Re: LF: Re: New QRPPP test to night on WSPR 2 MF

Hi Luis,

Your MF WSPR transmissions are most apprechiated. I like to read about your progress and i'm looking forward to a first decode!
RX is running. TX is running in 20% ratio, also leaving a trace for the other EA stns.
There are a few more EA stns receiving. Some are very close to you. Are they from your local radio club?
What is the current output power? I don't know much about the Ultimate-3. Guess it is not above 2.5W, so the 25W PA will at least improve your signal by another 10 dB.
Maybe it will become an active WSPR evening/night? QRN is extreme here though.

73, Stefan

Am 27.04.2015 17:21, schrieb VIGILANT Luis Fernández:
Vey nice test Andy. Thank you for sharing your results
 
I'm also transmitting QRPPP (may be with one more "P") with just the Ultimate-3 connected to antenna
 
Have been using a vertical 11m high without coil. But last week I finally installed a 70m perimeter loop
and managed to get it tuned to 477KHz. On my monitor at 7Km I have imporved by 10dB with the loop
 
I'm transmitting WSPR-2 and Opera8. So far have got my first (and only) WSPR report from about 500Km
at David EA1FAQ. And last night got a few decodes from Iban EB3FRN
 
I don´t know which is my ERP. But can be probably well under 1mW  ??
 
Next step is an small 25W PA. But for the moment will keep on QRPPP
 
73 de Luis
EA5DOM


De: [email protected] [mailto:[email protected]] En nombre de Roger Lapthorn
Enviado el: lunes, 27 de abril de 2015 11:06
Para: [email protected]
Asunto: Re: LF: Re: New QRPPP test to night on WSPR 2 MF

Congratulations. QRPPP is certainly fun and a real challenge for the RX stations.

73s
Roger G3XBM

On 25 April 2015 at 13:34, Guyé André <[email protected]> wrote:
Muchas gracias Iban.
 
last 3 nights I tested 20, 1 and 0.1 milliwatt ERP. Here the results :
 
Date night ERP mW  Total Spots received me Total stations received me Max QRB km
April 24 / 25 20 370 21 1284
April 25 / 26 1 45 9 730
April 26 / 27 0,1 19 5 587
 
To night, I’ll be QRV with 0,05 Watts ( 50 micro Watt).
 
Best 73 to all.
 
Andy F6CNI.
 
Sent: Saturday, April 25, 2015 12:10 AM
Subject: Re: LF: New QRPPP test to night on WSPR 2 MF
 
Hi Andy,
 
copied in Spain, congratulations:
 

2202 -29 0.5 0.475635 0 F6CNI JN19 13

 

731 Iban

eb3frn

 

 
On Thu, Apr 23, 2015 at 6:40 PM, Guyé André <[email protected]> wrote:
HI all.

 

Last night, I tested WSPR 2 MF using 1 milli Watt ERP transmission : 1 Watt output TX, 12 dB attenuator and – 18 dB antenna efficiency.

 

Thanks to the 8 differents stations reports :

 

clip_image002

 

To night, same test but using a 22 dB attenuator instead of the 12 db. The ERP be around 0.1 milli Watt (100 micro Watt). A new challenge.

 

I hope some reports coming from 2200 to 0400 TU...

 

73 to all.

 

Andy F6CNI – JN19QB.




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