Re: [IRCA] The Bad News
Thank you, Nick. I tried that last night and it made no difference. However, I am making progress. I think it is a ground issue. Grounding the chassis of the FDM-S2 receiver noticeably reduced the noise. Thanks again, Stan, WA1LOU On 6/13/2016 12:22 PM, Nick Hall-Patch wrote: I notice that you're using an external antenna Stan.Have you tried looping the lead-in from the antenna through the ferrite core? (to be simplistic) Often the problem is that the computer noise is conducted out the antenna cable to the vicinity of the antenna.and the antenna picks up the noise. Good luck. Nick At 16:06 13-06-16, you wrote: I bought an ELAD FDM-S2 SDR receiver and I am using it with my MacBook Pro under Windows 10 and Parallels. I am very happy with my new radio, but there is a problem: interference from the MacBook Pro battery charger/power supply. The interference is so strong that only the strongest AM stations are above the noise. The cable between the charger and the computer is the problem because the noise disappears completely when I disconnect the cable from the computer even though the charger is still powered. I installed ferrite cable clips on the cable, but that made no difference. I wrapped the cable 20 times around a toroid ferrite core, but that made no difference. One solution that works is to use the ELAD-MacBook Pro combo without the battery charger. This gives me a few hours operating without the interference, but sooner or later, the battery will need to be recharged. Anyone have any other solutions? 73, Stan, WA1LOU ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Be sure to register now for the Joint DX Convention Kansas City, September 9 to 11. Hotel space is filling up. Registration info: http://www.nrcdxas.org Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Be sure to register now for the Joint DX Convention Kansas City, September 9 to 11. Hotel space is filling up. Registration info: http://www.nrcdxas.org Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Be sure to register now for the Joint DX Convention Kansas City, September 9 to 11. Hotel space is filling up. Registration info: http://www.nrcdxas.org Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] The Bad News
Thank you, Brian. I also don't do radio long enough for the battery to run out! Anyways, I think it may be a ground issue. Grounding the chassis of the FDM-S2 receiver noticeably reduced the noise. Stan, WA1LOU On 6/13/2016 3:16 PM, Brian Rachford wrote: Stan, Although I don't use an Elad, I've had similar problems with my MacBook Pro and I haven't figured out a good solution either. I generally don't DX live long enough for the battery to run out. When I do an unattended recording, I turn off demodulation, turn off the FFT/waterfall, and turn off the screen. I can get about 7 hours that way. Brian Rachford - Prescott, AZ azswdx...@gmail.com http://azswdxing.wordpress.com/ On Mon, Jun 13, 2016 at 9:06 AM, Stan Horzepa wrote: I bought an ELAD FDM-S2 SDR receiver and I am using it with my MacBook Pro under Windows 10 and Parallels. I am very happy with my new radio, but there is a problem: interference from the MacBook Pro battery charger/power supply. The interference is so strong that only the strongest AM stations are above the noise. The cable between the charger and the computer is the problem because the noise disappears completely when I disconnect the cable from the computer even though the charger is still powered. I installed ferrite cable clips on the cable, but that made no difference. I wrapped the cable 20 times around a toroid ferrite core, but that made no difference. One solution that works is to use the ELAD-MacBook Pro combo without the battery charger. This gives me a few hours operating without the interference, but sooner or later, the battery will need to be recharged. Anyone have any other solutions? 73, Stan, WA1LOU ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Be sure to register now for the Joint DX Convention Kansas City, September 9 to 11. Hotel space is filling up. Registration info: http://www.nrcdxas.org Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Be sure to register now for the Joint DX Convention Kansas City, September 9 to 11. Hotel space is filling up. Registration info: http://www.nrcdxas.org Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
[IRCA] WWV Solar Report
:Product: Geophysical Alert Message wwv.txt :Issued: 2016 Jun 14 1810 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # # Geophysical Alert Message # Solar-terrestrial indices for 13 June follow. Solar flux 91 and estimated planetary A-index 9. The estimated planetary K-index at 1800 UTC on 14 June was 2. No space weather storms were observed for the past 24 hours. No space weather storms are predicted for the next 24 hours. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Trends -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Date 13 13 13 13 13 13 13 14 14 14 14 14 14 14 UTC 0300 0600 0900 1200 1500 1800 2100 0300 0600 0900 1200 1500 1800 SFlx 94 94 94 94 94 94 91 91 91 91 91 91 91 91 A-in 10 10 10 10 10 10 99999999 K-in 34222121321222 Current Solar information available at http://www.am-dx.com/wwv.htm ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Be sure to register now for the Joint DX Convention Kansas City, September 9 to 11. Hotel space is filling up. Registration info: http://www.nrcdxas.org Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
[IRCA] WWV Solar Report
:Product: Geophysical Alert Message wwv.txt :Issued: 2016 Jun 15 0005 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # # Geophysical Alert Message # Solar-terrestrial indices for 14 June follow. Solar flux 88 and estimated planetary A-index 21. The estimated planetary K-index at UTC on 15 June was 4. Space weather for the past 24 hours has been moderate. Geomagnetic storms reaching the G2 level occurred. Space weather for the next 24 hours is predicted to be minor. Geomagnetic storms reaching the G1 level are expected. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Trends -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Date 13 13 13 13 13 14 14 14 14 14 14 14 14 15 UTC 0900 1200 1500 1800 2100 0300 0600 0900 1200 1500 1800 2100 SFlx 94 94 94 94 91 91 91 91 91 91 91 91 88 88 A-in 10 10 10 10 9999999921 21 K-in 22212132122264 Current Solar information available at http://www.am-dx.com/wwv.htm ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Be sure to register now for the Joint DX Convention Kansas City, September 9 to 11. Hotel space is filling up. Registration info: http://www.nrcdxas.org Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
[IRCA] TP 14 Jun Victoria version
Tahiti again, where would we be without it? Listening to carriers, a few more this morning. not so reasonable audio, occasional words or phrases in splash or noise could be understood by a native speaker: 738 Tahiti, homme en francais 1135UT Burbles in the splatter and noise (if lucky, language might be guessed at by cadence of talk, or parallel established by changes in talk or music) the above passing through Strongish het, no or "near imaginary" audio (either undermodulated or ravaged by splatter) 702 891 1017 1035 1098 1503 best wishes, Nick ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Be sure to register now for the Joint DX Convention Kansas City, September 9 to 11. Hotel space is filling up. Registration info: http://www.nrcdxas.org Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
