To: rsgb_lf_group@blacksheep.org
References: <10B6CDE99BD44674B10E5CC73A8545CF@malPC>
 <Pine.LNX.4.64.1512251900160.607@paranoid.lipkowski.org>
From: =?UTF-8?Q?Wolfgang_B=c3=bcscher?= <dl4yhf@freenet.de>
Message-ID: <567E6FEE.1070907@freenet.de>
Date: Sat, 26 Dec 2015 11:46:06 +0100
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In-Reply-To: <Pine.LNX.4.64.1512251900160.607@paranoid.lipkowski.org>
Subject: Re: LF: digi es CW
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Status: RO

Reminds me of my early days on HF, with other hams on the local VHF 
repeater while comparing low-band antennas.
"Now I can hear a japanese station on 160. He's very strong with my new 
antenna."
"Here, too. What did you think. But I can also hear three ZL's and four 
VKs in the background".
.. etc etc.
If you know exactly who's out there, where and when, you can also hear 
him without any difficulty.  Similar applies to smart black boxes.

73, happy christmas and hope to cul via real airwaves,
    Wolf .


Am 25.12.2015 um 19:33 schrieb Jacek Lipkowski:
> On Thu, 24 Dec 2015, mal hamilton wrote:
>
>> DIGI MODES
>> Fall asleep over the keyboard
>> Go for Xmas Dinner
>> Go down the pub and get drunk
>> Sleep for a week
>
> Little does he know that the magical black box spawns radio waves no 
> more! The collector current is zero due to a burnt out fuse. Only 
> miliwatts from the driver make their way to the antenna. Only the 
> nearest stations decode it.
>
> But look: Christmas is a magical time and anything can happen. The 
> digital mode is sent by a closed-source application. There is no 
> formal documentation from the author and we can't look at the source. 
> Since we really don't know what it does, the author implemented yet 
> another trick to show long range decodes. The transmitting station's 
> application covertly sends this data to the author's server. Randomly, 
> with very low probability the author's server commands the receivng 
> station's programs to decode the station even if nothing is being 
> received.
>
> "Look! I'm being decoded in Australia! The ultimate MF DX!" screams 
> the digital operator, seeing his christmas wish come true.
>
> VY 73
>
> Jacek / SQ5BPF
>
> PS. the receiver didn't work either, but we have good propagation on 
> the internet today
>
>