Message-ID: <4796A852.9010000@toya.net.pl>
Date: Wed, 23 Jan 2008 03:37:06 +0100
From: =?UTF-8?B?UGlvdHIgTcWCeW5hcnNraQ==?= <sq7mpj@toya.net.pl>
User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.7.2) Gecko/20040804 Netscape/7.2 (ax)
MIME-Version: 1.0
To:  rsgb_lf_group@blacksheep.org
References: <003601c85bb2$ced17940$0100007f@w4o8m9> <371125448.20080121175438@gmx.de> <4794DB51.9050708@w1tag.com> <117725913.20080121215453@gmx.de> <003701c85c7b$68b9d0c0$99188351@w4o8m9> <000b01c85d35$c99fc4c0$c02a8351@w4o8m9>
In-Reply-To: <000b01c85d35$c99fc4c0$c02a8351@w4o8m9>
Subject: Re: LF: M0BMU WOLF beacon
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org


James Moritz wrote:

>Dear LF Group,
>
>Thanks for the reports from last night, Including my first 500kHz report
>from Poland via SQ7MPJ. The beacon will be running again tonight from
>2200utc with the same settings as before (503.800kHz, WOLF 20 mode)
>
>Cheers, Jim Moritz
>73 de M0BMU
>
>
>
>  
>
Hi Jim, LF group
It  was another evening/night  of successful reception  of your WOLF 20 
bit rate transmission.
just to save space  i 've confined  my all screens to the latest one  
including date and time(utc)
and number of necessary iterations  to get a  correct copy:
2008-01-23 00:49:49 >WOLF20  -r 11025 -f 600 -t 2 -w 0.0000
..................................................
t: 384 f:-0.078 pm:124.2 jm:266 q: -5.5 -5.9 MXCNG9G P92U0   -
t: 432 f:-0.078 pm:140.3 jm:266 q: -4.8 -5.4 M0BMU WOLF 20   -
my RX setup is exactly the same as described in one of my previous posts 
with   reception report
of  DJ8WX beacon on 137 kHz  except  changed coils  in LC resonating 
circuits.
when the WOLF transmission was in a '10 bit' mode i  got negative copy 
though i have tried only once
 and only one hour or so, therefore ,  there is no statistics needed for 
any reasonable conclusion,
However, at least one observation can be made from my point of view. due 
to my absolutely modest antennae conditions
 with respect to   137 a 500 kHz ( a small loop  inside a noisy 
environment)  the WOLF seems to be a 'state-of-the-art"  among
 wide variety  of weak signal ( and narrow band) modulations. in fact it 
is !  with its lowest S/N  positive  'detection'.
many times i tried to  get a copy of  G stations  TX'ing in different 
modulations  once i even traced Mal, KEV using his favourite
i.e normal CW speed [ :) ] on 502.5 KHz but i never succeeded in correct 
copy  of any modulation  from a transmitting G station until
recent Jim's transmissions. ( the qrb is 1350 km)  So,  my proposal  is 
to put for a day or two another extremely weak signal 'technique'
 i.e JT2 or JT4 mode in a beaconing fashion.   Ok, i know that for most 
of you it will not be necessary  to use the 'bottom-line' and sometimes
 plain CW will suffice to make a qso on LF,MF bands but for me  to get  
that far as G looks like a real TA challenge, hi.
BTW , which G station operates qrss in a beacon mode on 600 meters?

                                                                              
73 de peter, sq7mpj         /jo91rs/