Date: Thu, 26 Apr 2012 18:27:08 +0200
To: rsgb_lf_group@blacksheep.org
From: IK1WVQ Mauro <ik1wvq@stmb.it>
In-Reply-To: <FA5471E148FF4FB4BBC9C959E69625AF@AGB>
References: <E1SNLw1-000294-FY@post.thorcom.com>
 <FA5471E148FF4FB4BBC9C959E69625AF@AGB>
Mime-Version: 1.0
Message-Id: <E1SNRXA-0004gy-3c@post.thorcom.com>
Subject: Re: LF: info about better digital mode in 2200m band
Content-Type: text/plain; charset="us-ascii"; format=flowed
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org
X-AOL-SCOLL-URL_COUNT: 0  
x-aol-sid: 3039ac1d40c94f99779724a6
X-AOL-IP: 195.171.43.25
X-AOL-SPF: domain : blacksheep.org SPF : temperror


Hi to all,
thanks a lot for all the answers to my question ...
I want to precise my position:
I manage a 10.140MHz QRSS grabber from 2 years.
This winter I discovered the PA0RDT antenna, initially tried at 
10.140 MHz (no great results) and then
at 500 KHz (few beacon received - DI2AM , OK0EMW , IQ2MI etc.) and 
finally 137 KHz ..
Now i survey the segment 136.169-136.173 and 137.670-137.740 ..
the results are online in my website ..

Now in the 136.170 segment i receive ONLY DK7FC , with good signals 
but with deep QSB  ..
Now in the 137.700 segment NO ONE received station ...

I think my problem is the noisy urban environment, the 137.700 is 
more noisy than 136.170 ..

probably the PA0RDT makes intermodulation (a mistake was surely made: 
in order to increase sensitivity I place a 60 cm "whip" wire other 
than the PCB antenna), or my cable keeps noise (thanks Mike for this info)..

I planned to remote the antenna and RX in a rural site with a 
microwave link to my qth, but for now this is impossible (mains power 
problems) ..

the last resort will be a magloop tuned and preamplified  ....

My request for infos about digital mode was simply to try to receive 
other traffic before my patience runs out .. HI!

 From your emails, probably OPERA is the better choice, I shall try ..
(the RACALL 1792 is stabilized by a GPS .. no problem for frequency stability)

Thanks again for your attention ..

73 da Mauro IK1WVQ















At 17.35 26/04/12, Graham wrote:
>Mauro did  ask  ' the better digital mode ' as "reverse beacon" and 
>listed 3 modes.
>I think  this  relates to internet linked s/n  reporting  systems , 
>as wspr / lentus / Opera
>and other's  that have  web linking and not  simple  recognition ?
>
>Now  if  some one  can  slow a  CW skimmer  down  slightly , there 
>is a opportunity
>to read qrss as a  reverse CW  beacon  mode and  report s/n  via the  web !
>
>G..
>
>--------------------------------------------------
>From: "IK1WVQ Mauro" <ik1wvq@stmb.it>
>Sent: Thursday, April 26, 2012 11:27 AM
>To: <rsgb_lf_group@blacksheep.org>
>Subject: LF: info about better digital mode in 2200m band
>
>>Hi,
>>
>>what is the better digital mode for starting listening 137 KHz 
>>band  as "reverse beacon" (no TX)??
>>("better" = greater number of active stations in Europe)
>>
>>WSPR ?? LENTUS ?? OPERA ??
>>
>>what frequency is utilized for those modes ???
>>
>>thanks in advance to all ..
>>
>>73 de Mauro IK1WVQ
>>
>>P.S.: my RX station is : PA0RDT 8 meters over the roof, RACALL 1792 
>>.. not great station at all ..
>>in QRSS mode the only station what I can receive is the "broadcast 
>>(HI!)" beacon of Stefan DK7FC .. NO OTHER ...
>>
>
>
>
>Nessun virus nel messaggio in arrivo.
>Controllato da AVG - www.avg.com
>Versione: 9.0.930 / Database dei virus: 2410.1.1/4959 -  Data di 
>rilascio: 04/25/12 20:34:00