Re: [IRCA] Isolation Transformer
Hi Phil, If you use an outside antenna, I suspect you might get more bang per buck by trying to minimize the noise delivered down the feedline, either through common mode chokes and/or antenna isolation transformers. When I've used power line noise filters and isolation transformers, I haven't been able to obtain much improvement compared with cleaning up the antenna feed lines. I did have success once using a power isolation transformer with a sonar on a small boat where the AC power was provided from a later model gas generator with serious switching spikes in its output. But hopefully that wouldn't be equivalent to your city AC supply. best wishes, Nick At 22:43 14-03-16, Phil wrote: Thinking about getting some sort of isolation transformer/noise suppressor to plug various DX equipment into. I know my house/neighborhood wiring will still provide noise, but and thinking isolation might help. Anyone with experience in this area will share with me (or the group) so I can decide what to get or whether it's even needed. Phil Bytheway Seattle WA Drake R-7 / KIWA Loop ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca 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 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] Speedy verie from Live
Ah, but were you thinking about sending a report Jim? (hi) At 04:34 16-03-16, you wrote: I can top the speed of your QSL. I once received a QSL from the Hasidic station on 1710 in New York City. I had not even sent a report! Now that's fast. Jim Renfrew On Wed, Mar 16, 2016 at 12:31 AM, Nigel Pimblett wrote: > Had an unID from DU on 1107 a couple of weeks back, and after going > over the SDR recording found a familiar song among the mostly 'mumbly' > talk. DU options are limited on 1107, so sent an e-mail to Radio Live, > the likeliest suspect, and they responded back in only 44 minutes > confirming they played the song at the time I had heard it. > That's a new catch for me, and certainly one of my quickest > verifications. > > 73, > > Nigel Pimblett > Dunmore, AB > ___ > IRCA mailing list > IRCA@hard-core-dx.com > http://montreal.kotalampi.com/mailman/listinfo/irca > > 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 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 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 15 Mar Victoria version
I think I was more in Gary's camp than Bruce's this morning. The thought of hearing CRI-1044, however poorly, with the present geomagnetic conditions seems unlikely...but it happened. pretty darn good audio (all of it understandable by a native speaker, at least briefly): HLAZ came close around 1325UT with the Japanese program; even had a bit of audio around 1400UT Reasonable audio at times during the period (much of it understandable by a native speaker, though often battling w/splash or noise): 1566 HLAZ peaking 1321-1327UT with man and then woman in Japanese, organ music, choral singing etc. not so reasonable audio, occasional words or phrases in splash or noise could be understood by a native speaker: 774 JOUB man in Japanese 1142UT //828 1593 CNR1 likely, man in Chinese 1334UT 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) 594 JOAK man talking, another man on phone 1149UT; NHK pips at 1200UT 738 Tahiti likely; man and woman talking, Frence inflection 1246UT 828 JOBB man talking 1143UT //774 1044 CRI man and woman talking 1351-2UT, Japanese inflection? CRI chimes and fanfare 1400UT clinched it, weak, distorted, definite. Strongish het, no or "near imaginary" audio (either undermodulated or ravaged by splatter) 675 891 1008 1053 1098 1116 1206 1359 1422 1494 best wishes, Nick ___ ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca 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] Speedy verie from Live
I can top the speed of your QSL. I once received a QSL from the Hasidic station on 1710 in New York City. I had not even sent a report! Now that's fast. Jim Renfrew On Wed, Mar 16, 2016 at 12:31 AM, Nigel Pimblett wrote: > Had an unID from DU on 1107 a couple of weeks back, and after going > over the SDR recording found a familiar song among the mostly 'mumbly' > talk. DU options are limited on 1107, so sent an e-mail to Radio Live, > the likeliest suspect, and they responded back in only 44 minutes > confirming they played the song at the time I had heard it. > That's a new catch for me, and certainly one of my quickest > verifications. > > 73, > > Nigel Pimblett > Dunmore, AB > ___ > IRCA mailing list > IRCA@hard-core-dx.com > http://montreal.kotalampi.com/mailman/listinfo/irca > > 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 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] Speedy verie from Live
Had an unID from DU on 1107 a couple of weeks back, and after going over the SDR recording found a familiar song among the mostly 'mumbly' talk. DU options are limited on 1107, so sent an e-mail to Radio Live, the likeliest suspect, and they responded back in only 44 minutes confirming they played the song at the time I had heard it. That's a new catch for me, and certainly one of my quickest verifications. 73, Nigel Pimblett Dunmore, AB ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca 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] AM BCB DX……..ELAD Captures………4 NEW Stations
Hi Guys: Here is my Report for the last few days DX. 4 New Stations were logged. RECEIVER.ELAD FDM-S2 SDR ANTENNAWELLBROOK ALA-1530LNP Imperium Loop AM LOG TOTALS are now………..1838 Stations Heard 73…….ROB VA3SW Robert S. Ross London, Ontario CANADA * 1300 WKCY Harrisonburg, VIRGINIA Mar/13/16 0659 EDTEE FAIR Male DJ with ID@ 0659 EDT as "Your Home ?…Studios ??? This is WKCY Harrisonburg, WKCI - Waynesboro". Into News @ 0700 EDT. NEW STN 6.4 kW/5 Watts ROSS, ON. ** 800 KXIC Iowa City, IOWA Mar/13/16 0700 EDT EE FAIR Under CKLW Windsor. Male DJ with ID @ 0700 EDT as "??? in the morning and Sports Talk all day - KXIC Iowa City". Also mentioned the "Iowa Hawkeyes". "FOX Sports Trending" Slogan and into FOX Sports Talk @ 0701 EDT. NEW STN1 kW/199 Watts ROSS, ON. ** 1560 WMRO Gallatin, TENNESSEE Mar/13/16 0759 EDT EE FAIR Ad for Kentucky Fried Chicken. Mentioned the KFC in Nashville Hts @ 0800. Another Ad for TGIF Fast Fridays in Nashville @ 0800. NEW STN 1 kW/3 Watts ROSS, ON. ** 960 WTCH Shawano, WISCONSIN Mar/14/16 0658 EDT EE FAIR C/W Music @ 0658-59 EDT. Male DJ with Talk and ID @ 0659 as "WTCH - Shawano". Into CBS News @ 0700-0702 EDT. NEW STN 1 kW ROSS, ON. *** 830 WGUE Memphis, TENNESSEE Mar/10/16 1858 EST EE GOOD OVER WCCO Minneapolis! Classic Rock "The Boys are back in town" by Thin Lizzy @ 1858-1902 EST. Male DJ with ID as "GUESS-FM The Greatest Hits". Into the Eagle's - "In the long run". RELOG……But NEW CALLS3 kW DAYTIMER ROSS, ON. *** 930 WTAD Quincy, ILLINOIS Mar/15/16 0659 EDT EE GOOD Local Ads for Quincy @ 0659 EDT. Male DJ with ID @ 0700 as "Fox News Radio 930 The news you can trust - WTAD Quincy". Into Fox News. RELOG 5/1 kW ROSS, ON. *** 1310 WDTW Dearborn, MICHIGAN Mar/14/16 2159 EDT EE FAIR ID by Male DJ @ 2159 EDT as "WDTW Dearborn-Detroit - Detroit's New Country Station". Into C/W Music @ 2159. Not sure if they were TESTING or what?? Also not sure why they were playing C/W?? Is that what they are supposed to return with?? RELOG……Back on the Air?? 5 kW ROSS, ON. ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca 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] Alberta TPs for 15 March 2016
My results again lined up with Seattle - lousy. Had poor audio on 1566 HLAZ at 1320, and no other audio. Might have found a syllable or two from other regulars if I'd felt inspired to pore over my recording, but I wasn't. 73, Nigel Pimblett Dunmore, AB Perseus SDR & Wellbrook Phased Array ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca 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] Strong 1548-TWR (Moldova) Video During Japanese Ultralight DXpedition
For those interested, Hiroyuki Okamura has posted another surprising transoceanic DX video made with his 3" FSL Tecsun PL-380 model during the joint Perseus-SDR/ Ultralight Radio DXpedition to Chigasaki, Kanagawa this week. 1548-TWR in Grigoriopol, Moldova was received at a strong level before the local Japanese sunrise on Hiroyuki's "Science Fiction PL-380" stand-alone model. https://www.youtube.com/watch?v=pdbWovCu2b0&feature=youtu.be 73, Gary DeBock (in Puyallup, WA, USA) ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca 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 DX in Seattle on the Ides of March
Conditions were lousy today, with only three of the usual powerhouses producing recognizable audio. GOOD Nobody FAIR 1566HLAZ, Japanese talk 1320 POOR 693faint talk in the CBU splatter 1408 774JOUB, time pips 1400, weak talk peaking at 1411 CARRIERS ALMOST PRODUCING AUDIO - 1044 1377 1422 1557 ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca 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] Is AM Radio Still Relevant?
--- Begin Message --- Below is a link to KFI 640 petition to save AM radio. C Crane sent this with their regular monthly advertisement. http://www.kfiam640.com/features/save-am-radio-1919/ Best regards, Dennis Vroom, Kalama, WA --- End Message --- ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca 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 Mar 16 0005 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # # Geophysical Alert Message # Solar-terrestrial indices for 15 March follow. Solar flux 94 and estimated planetary A-index 24. The estimated planetary K-index at UTC on 16 March was 4. Space weather for the past 24 hours has been minor. Geomagnetic storms reaching the G1 level occurred. Space weather for the next 24 hours is predicted to be minor. Geomagnetic storms reaching the G1 level are expected. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Trends -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Date 14 14 14 14 14 15 15 15 15 15 15 15 15 16 UTC 0900 1200 1500 1800 2100 0300 0600 0900 1200 1500 1800 2100 SFlx 93 93 93 93 93 93 93 93 93 93 93 93 94 94 A-in 444413 14 14 14 14 14 14 14 26 24 K-in 22134544442354 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 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 Mar 15 1805 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # # Geophysical Alert Message # Solar-terrestrial indices for 14 March follow. Solar flux 93 and estimated planetary A-index 14. The estimated planetary K-index at 1800 UTC on 15 March was 3. Space weather for the past 24 hours has been minor. Geomagnetic storms reaching the G1 level occurred. Space weather for the next 24 hours is predicted to be minor. Geomagnetic storms reaching the G1 level are likely. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Trends -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Date 14 14 14 14 14 14 14 15 15 15 15 15 15 15 UTC 0300 0600 0900 1200 1500 1800 2100 0300 0600 0900 1200 1500 1800 SFlx 93 93 93 93 93 93 93 93 93 93 93 93 93 93 A-in 44444413 14 14 14 14 14 14 14 K-in 22221345444423 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 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] 3" FSL Tecsun PL-380 TP-DX for 3-15
It was a pretty bizarre morning where the low band was fairly subdued, but 1044-CRI was strong enough at 1350 to manage weak audio on the handheld FSL-PL-380. Besides a temporarily fair signal from 1593-CNR1 around 1335 and 1566-HLAZ's usual strong run during its Japanese service it was mostly a morning for the middle-band CRI stations, with 1017 and 1206 also managing threshold levels. At my 1255 start time only 1566-HLAZ was showing much energy, holding at a fair level until it built up strength to manage good peaks around 1315. The usual NHK big guns on 594 and 693 made halfhearted appearances around that time also, although the other Japanese regulars and 972-HLCA seemed missing in action. By 1325 the relatively uncommon 1044-CRI was already managing weak audio peaks with its Japanese service on the "Science Fiction PL-380," a pretty astonishing occurrence for what seemed like a modest TP morning. Ghostly signals on 1017 and 1206 seemed to confirm the middle band Chinese propagation, although neither was strong enough to confirm the identity. 1593-CNR1 came out of nowhere to manage a fair signal around 1330, but by then 1566 had fizzled and the other high band regulars on 1503 and 1575 were down in the noise. 594-JOAK, 693-JOAB and 603-HLSA all reached fair audio peaks from 1335-1345 but in general the low band wasn't in very good form. The signals from 1044-CRI and 1593-CNR1 had fizzled by 1400 as Asian propagation lurched toward an early demise, with the increasing daylight finishing off the last diehards (594 and 693) by 1410 here. Best signal of the morning was from 1566-HLAZ (good) around 1315. 1044 CRI Jiangsu, China Weak audio peak during Japanese service at 1353 (apparent Chinese lessons during the session) https://app.box.com/s/uj6g1ivwi7avsuwwhlhsgqs00aodamfh 1593 CNR1 Changzhou, China Fair-level male Chinese speech at 1335 https://app.box.com/s/ut30dewaes86oybeve7irppmluu86ay8 73 and Good DX, Gary DeBock (in Puyallup, WA, USA) Stand-alone 3" FSL Tecsun PL-380 Ultralight ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca 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] NOISE-BEATING
I've been involved in recent threads with some of you, regarding common-mode noise suppression. I went to Fair-Rite with a question about suppression on USB cables and wanted to share the response: Hi Mark, Thank you for your Ask the Adviser question! While I am unsure as to what is the source or frequency of your common-mode noise, given that USB clock frequency is 24 MHz I would say that 61-material would be suppressing at too high a frequency (> 200 MHz) to have an major impact. Instead, may I suggest trying a broad-band material such as 31 (operating between 1 MHz and 300 MHz) or 43/44 (operating between 25MHz and 300 MHz). As for the number of turns, this is proportional to the impedance you require (Z ~ N^2) and again depends on the amount of noise suppression your system requires - typically one turn (or one pass through the aperture of the core) should be sufficient. Hope this helps! Sincerely, Rachael Parker Cheers! Mark Durenberger, CPBE There's SO much I still don't know! ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca 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] Arizona TP's for 3/15/16
Listened from 1335-1345 UT and conditions was down from yesterday with no audio or carriers on the bottom part of the band and the only audio was from HLAZ-1566 and one weak carrier on 1593. 1566 HLAZ hrd at 1337 UT with talk. Bill Block Prescott Valley, AZ Drake R8 -- ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca 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