Message-ID: <3F7A4F222EFB4E4981AAD8CD28C6CF1A@AGB>
From: "Graham" <g8fzk@g8fzk.fsnet.co.uk>
To: <rsgb_lf_group@blacksheep.org>
References: <555CCC21.4060901@gmx.com> <555E100C.25784.C7C6D2@mike.dennison.ntlworld.com>
In-Reply-To: <555E100C.25784.C7C6D2@mike.dennison.ntlworld.com>
Date: Thu, 21 May 2015 19:52:47 +0100
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Subject: Re: LF: MF 630m: False Decode or Real?
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Status: O

Thanks  Mike ,

We can  add  this  one to the   list  of   'ifs'  The  times  are 
temptingly  close ,  but   genuine  false  detection  occurred some time 
later ...With the  number of  near misses'   Down Under  is becoming  the 
'MARS'  of the   beacon  world !

Just a  note -  The  '??'   denotes   either  a  rejected   detection , 
timing  parameters  not  met  ... OR    A single  detection  presented  to 
the  server , with  no  secondary conformation.

I think  this  happened  last  night  with the  first  detection  of  VO1NA 
by  PA3ABK ,  showing  a  dynamic  detection  ''??''  ,  then  the  next 
cycle  , cross  correlated  by  F6CNI  , validated

This  is where  using  the  Opera  software , provides  advantages ,  as the 
TX beacon is  stored  in the  psk-map  and the  call  sign  is  added  to 
the  dynamic  list  directly . allowing  a  manual  inspection  post  result 
..

73-G,

--------------------------------------------------
From: "Mike Dennison" <mike.dennison@ntlworld.com>
Sent: Thursday, May 21, 2015 5:04 PM
To: <rsgb_lf_group@blacksheep.org>
Subject: Re: LF: MF 630m: False Decode or Real?

> Very likely a false decode. The clue is the two question marks. In my
> experience, almost every decode with question marks is false, and
> there are very few cases where these particular decodes are useful. I
> believe it would be helpful not to display these at all.
>
> Having said that, the deep search facility in Opera is very useful
> and has revealed some very interesting propagation information. But
> only using the decodes without the question marks which, again in my
> experience, are almost always genuine.
>
> Mike, G3XDV
> ===========
>
>> Just popped up at my RX:
>>
>> 17:52    477 VK3ELV de DF1VB/3 Op8 Deep Search ?? 16348 km -37 dB in
>> Dortmund with 140w + Top loaded L 18m vert 80m horz
>>
>> Any comments welcome
>>
>> 73, Jochen
>>
>>
>>
>> -- 
>>   -= DF1VB =-
>>   -= KH2MM =-
>> Jochen Althoff
>> +49 171 2020206
>>
>> "The wireless telegraph is not difficult to understand.
>> The ordinary telegraph is like a very long cat.
>> You pull the tail in New York, and it meows in Los Angeles.
>> The wireless is the same, only without the cat."
>> (Albert Einstein)
>>
>>
>>
>> -----
>> No virus found in this message.
>> Checked by AVG - www.avg.com
>> Version: 2015.0.5941 / Virus Database: 4347/9830 - Release Date:
>> 05/21/15
>>
>
>
>