<html><head><meta http-equiv="content-type" content="text/html; charset=us-ascii"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">I received this from a user whilst on holiday, hence the delay. Can we assist in some way?<div><br></div><div>73 Ian (G0VGS)<br id="lineBreakAtBeginningOfMessage"><div><br><blockquote type="cite"><div>Begin forwarded message:</div><br class="Apple-interchange-newline"><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;"><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);"><b>From: </b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;">Paul Whatton <paul@g4dcv.co.uk><br></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;"><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);"><b>Subject: </b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;"><b>DX Cluster abuse</b><br></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;"><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);"><b>Date: </b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;">16 September 2024 at 14:35:21 BST<br></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;"><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);"><b>To: </b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;">ijmaude@icloud.com<br></span></div><br><div><div>Hi Ian<br><br>I wonder if you are able to help those of us in the VHF DX community who have a problem with spurious DX Cluster spots.<br><br>Helmut Drascher DL6YBF had his licence revoked by the German DBN in 2021. But since then he has frequently spotted on the cluster using the callsigns of other legitimate users. These spots are normally for 144MHz.<br><br>Among the callsigns he has used in the past 12 months are DL0V, DL5EBS, PC0CBF, SM7VTZ, LA0NGE and others. To see some reaction from cluster users who have been calling him out about false posts please see: https://www.dxfuncluster.com/search.php?s=DL6YBF<br><br>Apart from harming the integrity of the cluster and causing distress to the owners of the callsigns he uses, these false spots cause problems for users who use the cluster to monitor and study VHF propagation. They trigger false alerts in tools like Dave G7RAU's Live MUF Sporadic E prediction software.<br><br>If these false spots are reported, please is it possible for DL6YBF's IP address to be blacklisted? I realise that if he isn't on a static IP this would require updating from time to time, but if this cluster abuse can be stopped there will be many users across Europe who will be very happy.<br><br>In order to verify the above I would be more than happy to supply you with contact details for users who have experienced problems. Or if you wish I can ask them to contact you themselves.<br><br>Many thanks & 73<br><br>Paul G4DCV<br><br><br><br><br></div></div></blockquote></div><br></div></body></html>