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The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Hello Graham and others on the group. No Opera decodes have been received here for the past 2 nights, unfortunately. The noise starts at about 6:45 daylight savings time and ends 12 hours later. Before the clocks advanced, it started 5:45. It sounds like very strong 60 Hz buzz with changing harmonic content that presents in bands about 40 kHz wide every 100-200 kiHz. It is very strong near the power lines about 400m from the shack. [...] Content analysis details: (-2.4 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -2.4 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain X-Scan-Signature: 21e2055b299bd63ed331c37c8a3e15ca Subject: Re: LF: OP32 136K TA Opportunity tonight Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.3 required=5.0 tests=NO_REAL_NAME autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false x-aol-global-disposition: G x-aol-sid: 3039ac1d60cb515d53dd44c2 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Hello Graham and others on the group. No Opera decodes have been received here for the past 2 nights, unfortunately. The noise starts at about 6:45 daylight savings time and ends 12 hours later. Before the clocks advanced, it started 5:45. It sounds like very strong 60 Hz buzz with changing harmonic content that presents in bands about 40 kHz wide every 100-200 kiHz. It is very strong near the power lines about 400m from the shack. The discussion on 4mm litz by Markus has been most interesting. I several 25 metre lengths and by patiently winding three of them into flat pies and stacking them about 1 cm apart, managed to get about 2 mH. The idea of pies came from G3NYK and before getting distracted, I attempted to measure the Q using a M0BMU procedure. I hope to get back to TX on 137 kHz soon and thank all those who operate the grabbers which are very helpful for monitoring. Thanks also to Markus for his strong Op sig and those others who tried the past few nights. 73 Joe VO1NA On Tue, 2 Apr 2013, Graham wrote: > Yes , with 3 and 6 dB over the limit as well > > Pity on the noise , I'm sure the other station's would not of been > that far behind , is it wide band or pulsed ? > > 73 -G, > > -------------------------------------------------- > From: > Sent: Tuesday, April 02, 2013 9:00 PM > To: > Subject: Re: LF: OP32 136K TA Opportunity tonight > >> HI Graham, >> >> It was good to see Markus callsign on the screen. The RX is running again >> tonight and my sentiments concerning the mains problem have been clearly >> voiced to those concerned! >> >> 73 >> Joe >> >> On Tue, 2 Apr 2013, Graham wrote: >> >>> Thanks' for that Joe, >>> >>> Hopefully a few more nights before the summer sets in !, pity >>> about the mains noise , seems to be a problem that's becoming all >>> to wide spread these days .. >>> >>> 73-Graham >>> >>> >>> -------------------------------------------------- >>> From: >>> Sent: Tuesday, April 02, 2013 2:16 PM >>> To: >>> Subject: Re: LF: OP32 136K TA Opportunity tonight >>> >>>> Dear Group, >>>> >>>> Despite very high mains noise levels there were 2 Op32 receptions >>>> of DF6NM at 0000 and 0449 at -37 and -35 dB respectively. >>>> >>>> 73 >>>> Joe VO1NA >>>> >>>> On Mon, 1 Apr 2013, Graham wrote: >>>> >>>>> OP32 136K TA Opportunity tonight >>>>> >>>>> Joe VO1NA will be monitoring 136.00 K tonight for OP32 >>>>> >>>>> Good luck all >>>>> >>>>> 73-Graham >>>> >>>> This electronic communication is governed by the terms and conditions at >>>> http://www.mun.ca/cc/policies/electronic_communications_disclaimer_2012.php >>>> >>> >>> >> >> This electronic communication is governed by the terms and conditions at >> http://www.mun.ca/cc/policies/electronic_communications_disclaimer_2012.php >> > > This electronic communication is governed by the terms and conditions at http://www.mun.ca/cc/policies/electronic_communications_disclaimer_2012.php