<div dir="ltr">You are absolutely right Lee, skimmers do not always provide reliable information, but between the all and nothing, between receiving 100 raw spots (inedible) and none, I am left with receiving 10 treated (filtered) even if they are imperfect. Moreover, the value of 'Q' > 1 gives us a certain reliability, and if we rely on our ears (CW) the result can be very surprising.<br><br>From the tests that I've been doing for months with RBN spots, I can say that for me it has been a remarkable change (in positive) to go from receiving all the spots to a few, and not only for the quantity (which now makes them manageable for humans) but for the usefulness that those who have passed the filter have given me.<br>I'm convinced that in the near future we will be able to optimize the code even more, new algorithms will emerge and the HW will be better :-)<br><br>Kin EA3CV<br><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">El vie., 10 jul. 2020 a las 10:00, Lee Sawkins via Dxspider-support (<<a href="mailto:dxspider-support@tobit.co.uk">dxspider-support@tobit.co.uk</a>>) escribió:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Not to rain on anyone's parade but ... the RBN calls their spot streams "raw". Their spots contain bad calls and frequencies and little is done to remove them. The RBN depends on the clusters to do this. I have seen no mention of how this is being done in the new software. <br>
<br>
There are about 150+ CW Skimmers. Each CW Skimmer is about 99% or so accurate for calls. These skimmers do not all bust the calls the same way. So what you end up with is a much higher error rate of bad to good calls. When working a contest the longer one stays on a band and works stations, the higher the percentage of busted calls there is in the band map. Stay on a band long enough and the band map has more busted calls than good ones. I currently see EV73NS, OE7NS, V73N, VE3NS, V73NI, V73T, V73NA, V73NN and V73NS spotted on the same frequency. Only one of those calls is right.<br>
<br>
CW and RTTY are bad for being busted. Not so for FT4/FT8, but it still happens. Sometimes grid squares get mistaken for call signs. I see spots for JN87FI in the last few minutes. Frequently SP5xxx calls get shortened to P5xxx. That usually creates a big pile up.<br>
<br>
Lee VE7CC<br>
<br>
----- Original Message -----<br>
From: Michael Carper, Ph.D. via Dxspider-support <<a href="mailto:dxspider-support@tobit.co.uk" target="_blank">dxspider-support@tobit.co.uk</a>><br>
To: The DXSpider Support list <<a href="mailto:dxspider-support@tobit.co.uk" target="_blank">dxspider-support@tobit.co.uk</a>><br>
Cc: Michael Carper, Ph.D. <<a href="mailto:mike@wa9pie.net" target="_blank">mike@wa9pie.net</a>>, Joaquin . <<a href="mailto:joaquin@cronux.net" target="_blank">joaquin@cronux.net</a>><br>
Sent: Fri, 10 Jul 2020 00:02:19 -0600 (MDT)<br>
Subject: Re: [Dxspider-support] The RBN interface is here...<br>
<br>
Unless Dirk objects, I'll be announcing this broadly to our Ham Radio<br>
Deluxe newsletter group (which hits about 35,000 of the most active hams in<br>
the world). I can make the announcement fairly generic... but most of our<br>
customers use WA9PIE-2.<br>
<br>
But here's the story... those who don't receive these spots are missing out<br>
on 90% of the world's spots. Automatically generated spots outnumber<br>
manually generated spots by more than 10:1 (and it's probably MUCH higher<br>
than that). Because successful DXers beat the pile-up, getting the<br>
information first gives you an advantage.<br>
<br>
Mike, VK4EIE, WA9PIE<br>
<br>
On Fri, Jul 10, 2020 at 3:40 PM Joaquin . via Dxspider-support <<br>
<a href="mailto:dxspider-support@tobit.co.uk" target="_blank">dxspider-support@tobit.co.uk</a>> wrote:<br>
<br>
> A great job has been done by Dirk.<br>
><br>
> Now it's time to make it known to the users, and what better opportunity<br>
> to try it out at the next IARU HF Contest. Now it's up to us to spread the<br>
> word.<br>
><br>
> Thank you very much Dirk.<br>
><br>
> Kin EA3CV<br>
><br>
> El jue., 9 jul. 2020 a las 23:39, Dirk Koopman via Dxspider-support (<<br>
> <a href="mailto:dxspider-support@tobit.co.uk" target="_blank">dxspider-support@tobit.co.uk</a>>) escribió:<br>
><br>
>> TL&DR<br>
>><br>
>> The Reverse Beacon Network DXSpider client is here!<br>
>><br>
>> If you want to see what it does: connect to <a href="http://gb7djk.dxcluster.net" rel="noreferrer" target="_blank">gb7djk.dxcluster.net</a> 7300,<br>
>> login and then type 'help rbn'.<br>
>><br>
>> If you are a 'master' branch read UPGRADE.mojo, do what it says, then<br>
>> read RBN.mojo for instructions and information about the RBN interface. You<br>
>> will be able to read both documents in either branch. You should stop the<br>
>> node before doing the 'git pull --all; git checkout --track mojo<br>
>> origin/mojo'.<br>
>><br>
>> If you are on the 'mojo' branch, then read RBN.mojo and, if necessary, do<br>
>> what it says and read UPGRADE.mojo. Particularly if you have a build number<br>
>> under 276.<br>
>><br>
>> Have fun.<br>
>><br>
>> 73 Dirk G1TLH<br>
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