Message-ID: <5008A968.8050305@iup.uni-heidelberg.de>
Date: Fri, 20 Jul 2012 02:42:16 +0200
From: =?ISO-8859-1?Q?Stefan_Sch=E4fer?= <Stefan.Schaefer@iup.uni-heidelberg.de>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3
MIME-Version: 1.0
To: rsgb_lf_group@blacksheep.org
References: <3CB7C9E00B7F4775905AE4E319341792@AGB> <50080BDA.3090607@iup.uni-heidelberg.de> <63CE6B919E0541BCA73AD2A4B825B450@AGB> <50083506.8030502@iup.uni-heidelberg.de> <7D2BC765F4B44DD8A34DE04A6DD3B4AA@AGB> <5008806D.9010506@iup.uni-heidelberg.de> <EE2F203EA4C6407A9D02E5E005A6C2E2@AGB>
In-Reply-To: <EE2F203EA4C6407A9D02E5E005A6C2E2@AGB>
Subject: LF: Copied G3XDV
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: quoted-printable
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: 3039ac1d4ad15008aa3d2b55
X-AOL-IP: 195.171.43.25
X-AOL-SPF: domain : blacksheep.org SPF : none


Hello Mike, LF,

I just copied your OP8 beacon at -31 dB S/N, my first LF Opera decode ;-)

BUT!: You have been visible on my grabber in QRSS-3 about M copy with=20
some QSB. Hmmmm...!??!! ;-)

Also congrats for the decode at TF3HZ, i just saw it in the same round.

Now attempting to reach the US. Not very realistic but Jay can do miracle=
s!

73, Stefan/DK7FC


Am 20.07.2012 00:33, schrieb Graham:
> Ok Stefan
>
> Well , OP8 is only the  entry mode for  136  :)   with   every   X2  =20
> of the time  , add  another  -3 dB , at the  moment  , OP8 and  OP32
> seem  to  give  good results  , hopefully other speeds  can be tested=20
> , OP32 lowers  the  s/n by  -6 dB
>
> We have  tested  OP16  and  OP64 in the  past , 64 gives another -3 =20
> dB , but  qsb on longer  paths  , may  reduce the  % of  signal  over=20
> the  decode level ..  But  the  longer  on/off  times  also  means =20
> that  it  shows on S/L  , but there may be  some  problems with  sound=20
> card  using OP and S/L on the  same  P/C .. its possible that  Op is =20
> not  able to  decode at the extreme limits , Jos=E9's DSP engine  is =20
> pushing the  limits ..
>
> Decodes , well  at the  moment I have the  Ae  set  for  500K , so =20
> not ideal  for  136  , but  I have two  decodes , via the  500  tuner  =
:)
>
> 22:24    136 DK7FC Op8 -32 dB
> 21:51    136 DK7FC Op8 -33 dB
>
> This  is  outstanding ! at 20 dB in Reykjavik ~~   13 dB  above  the=20
> minimum  decode  level  , you  could  reduce power  by a  factor of  X=20
> 20 !
>
> 22:24    136 DK7FC de TF3HZ Op8 1515 mi -20 dB in Reykjavik
>
>
> Well , as I have posted in the  past the  Op  system has  made=20
> operating on MF/LF   quite simple ,  PSK-Map  showing  24 monitors  at=20
> the  moment , lets  hope  East coast  USA  joins  later  in the  night
>
> GL -73-G..
>
> --------------------------------------------------
> From: "Stefan Sch=E4fer" <Stefan.Schaefer@iup.uni-heidelberg.de>
> Sent: Thursday, July 19, 2012 10:47 PM
> To: <rsgb_lf_group@blacksheep.org>
> Subject: Re: LF: 136 More   OP  RX stations needed  !
>
>> Hi Graham, Op fans,
>>
>> That seems to work very well, i haven't expected that. No, the power=20
>> is about the same as in all my transmissions.
>> What do you think why you're getting no decode?
>>
>> There are even stations listening that i never heared of, on LF, like=20
>> DL2OBT. Maybe we can get some newcomers by that or move some=20
>> attention on that band??
>>
>> VK1SV has now updated his grabber and shows the DCF-39 plot. The S/N=20
>> is however just 10 dB, at least today. So there is no chance to leave=20
>> a trace in VK.
>> Thus i let the beacon run until tomorrow. Who knows what will be=20
>> achieved at night...
>>
>> 73, Stefan/DK7FC
>>
>>
>>
>> Am 19.07.2012 19:58, schrieb Graham:
>>> Only  1  decode, have you  changed power  ?
>>>
>>> --------------------------------------------------
>>> From: "Stefan Sch=E4fer" <Stefan.Schaefer@iup.uni-heidelberg.de>
>>> Sent: Thursday, July 19, 2012 5:25 PM
>>> To: <rsgb_lf_group@blacksheep.org>
>>> Subject: Re: LF: 136 More   OP  RX stations needed  !
>>>
>>>> Hi Graham,
>>>>
>>>> Am 19.07.2012 17:33, schrieb Graham:
>>>>>
>>>>> Q what  is the  s/n  level  ?
>>>>
>>>> It was -32 dB.
>>>>
>>>> 73, Stefan/DK7FC
>>>>
>>