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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: G Those +8 readings were with Bob off the back of the beverage. Add another 15 - 20 dB when pointed west - toward Bob. Jay [...] Content analysis details: (-0.5 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [76.96.59.211 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (jrusgrove[at]comcast.net) -0.0 SPF_PASS SPF: sender matches SPF record -0.5 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 32d4aaaf019758ff5a0d8e92eec683e6 Subject: Re: LF: OPERA overload? Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Content-Transfer-Encoding: 7bit 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 Status: O X-Status: X-Keywords: X-UID: 2542 G Those +8 readings were with Bob off the back of the beverage. Add another 15 - 20 dB when pointed west - toward Bob. Jay ----- Original Message ----- From: "Graham" To: Sent: Friday, December 20, 2013 12:40 PM Subject: Re: LF: OPERA overload? > Jay, > > Just pulled these back from the psk-data base , > > + 8 OPERA 0.477 20/12/2013 00:15 United States 1387498502 WE6XGR FN12LQ WD2XNS > + 8 OPERA 0.477 20/12/2013 00:32 United States 1387499533 WE6XGR FN12LQ WD2XNS > > +8 is 5/6 db up on my signal over 25 miles range , > > That's definitely one up from 'Cookie' more to Tall Boy , if Bob runs to double figures , > then may be 'Grand Slam' > > The spectrum w/f has no link to the decode engine , but , yes under those conditions the > noise floor is going to be much higher > > Can you generate a local signal 100% op4 , see if Bob will run the timer , give you 4 tx 8 > rx window , that would give a value to the drop ? > > Use something like spec-lab to give a better view , the w/f in Op is only a indicator / tune > aid , what happens to the noise floor , carrier on / off ? > > 73-G, > > -------------------------------------------------- > From: > Sent: Friday, December 20, 2013 1:24 AM > To: > Subject: LF: OPERA overload? > >> G >> >> I have to take issue with your earlier comments about OPERA being immune to overload. Check out >> the >> waterfall below. I'm looking for OP8 signals out west (UT and VE7) and WE2XGR/6 running OP4 is >> clearly desensing the OPERA software. Sensitivity can be seen returning to normal between keyed >> characters. >> >> The receiving setup is a 1000' BOG (beverage on ground) > Harris RF-590 receiver > Delta 44 sound >> card. Receiver AGC is off and the received signal level is well below that to cause gain >> compression >> in the receiver. Likewise, the sound card is being operated well below compression/clipping >> levels. >> >> Weak signals do not decode under these conditions ... same as with WSPR. >> >> Jay W1VD WD2XNS WE2XGR/2 WG2XRS/2 >> >> >> >> >> >