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Visualizzazione post con etichetta ARRL. Mostra tutti i post

domenica 19 febbraio 2017

HAARP Experiments to Get Under Way on February 20 UTC, Reports Invited





(HAARP) lancerà la sua prima campagna di ricerca scientifica da quando l'impianto è stato rilevato dalla University of Alaska Fairbanks (UAF) Istituto Geofisico 18 mesi fa.

The Luxembourg broadcast will begin as early as 6 p.m. on 19 and 20 February Alaska Standard Time (AKST) and conclude by 6:40 p.m. In Coordinate Universal Time (UTC), the broadcasts will begin as early as 03:00 on 20 and 21 February and conclude by 03:40. Tune in to 2.7 MHz or 3.3 MHz (2700 KHz or 3300 KHz), or both! The program is approximately 10 minutes in duration and will repeat until 6:40 p.m. AKST or 03:40 UTC.

http://swling.com/blog/2017/02/haarp-campaign-update-luxembourg-broadcast-artificial-aurora/

On February 20 (UTC), Alaska’s High Frequency Active Auroral Research Program (HAARP) will launch its first scientific research campaign since the facility was taken over by the University of Alaska Fairbanks (UAF) Geophysical Institute 18 months ago. UAF Space Physics Group Assistant Research Professor Chris Fallen, KL3WX, reports that he will be ready to go starting Monday, February 20, at 0330 UTC (Sunday, February 19, in US times zones). His campaign will run through February 23 (transmissions will start 1 hour later on February 22 UTC).

Fallen plans to start and stop each experiment block with an audio broadcast, transmitting AM carriers at 2.7 and 3.3 MHz, with the resulting skywave signal — the “Luxembourg Effect” — being a mix of both frequencies. He told ARRL that he will transmit a short, simple piece of music, composed locally, specifically to help demonstrate the Luxembourg effect.
Transmissions to create radio-induced airglow or “aurora” that potentially can be photographed from nearly anywhere in Alaska will take place afterward; Fallen said on February 18 that he wasn’t quite ready to announce precise frequencies for that experiment.
“Initially the airglow experiments will be a silent carrier, but if things go well the first night I may try a single AM-modulated tone to make the broadcast easier to hear,” Fallen told ARRL. He said net radiated power would be in the 2 MW range.


Fallen is working under a National Science Foundation grant. He’s posting additional information on his “Gakona HAARPoon 2017” blog. He points out that exact times, transmit frequencies, and experiment modes “are subject to change in response to a variety of factors.” Selected updates will be posted via Twitter.
Fallen encourages radio amateurs and SWLs to record the events they hear and post reports to social media or e-mail ( ctfallen@alaska.edu ) him.


 QSL  del 20/01/2008 , CW sui 7407,5 kHz, la stazione eseguiva dei test di prova via EME Alaska-Messico

venerdì 27 giugno 2014

ARRL Experimental Stations to Transmit Field Day Greetings on 630 Meters

 To promote awareness of the 630 meter band, several radio amateurs with FCC Part 5 experimental licenses — including a couple who are associated with the ARRL 600 Meter Experimental Group — will transmit Field Day greetings in CW on 630 meters throughout Field Day weekend, June 28-29.
These include WG2XKA (WA3ETD operator), running 1 W ERP on 472.5 kHz from Vermont; WG2XJM (NO3M operator), running 20-30 W ERP on 473.0 kHz from Pennsylvania; WG2XIQ (KB5NJD operator), running 1 W ERP on 474.0 kHz from Texas; WD2XSH/20 (N6LF operator), running 20 W ERP on 475.0 kHz from Oregon, and WE2XPQ (KL7L operator), running 50 W ERP on 472.00 kHz from Alaska.
Field Day stations may try using an HF transceiver capable covering the 472-479 kHz range to listen for these stations and others. Send reception reports to the individual operators. — Thanks to John Langridge, KB5NJD/WG2XIQ, via QRZ.com

venerdì 15 marzo 2013

Voice of America to Test Digital Transmissions (PSK) this Weekend - March 16 and 17.



Voice of America  test di trasmissione digitale  16 -17 marzo


La Voice of America Radiogram eseguirà un test condotto da Kim Andrew Elliot, KD9XB,  testerà una varietà di modi digitali il 16 marzo e il 17.
Le trasmissioni di dati possono essere decodificati da chiunque abbia un ricevitore AM ad onde corte con uno dei popolari scheda audio basati su programmi come fldigi , Ham Radio Deluxe , MixW , MultiPSKDigiPan (per BPSK31, BPSK63 e QPSK31 solo), CocoaModem (per Mac) e altri.
Ogni prova avrà una durata di un minuto, se non diversamente specificato, le seguenti modalità alle frequenze audio indicati. Durante alcuni test fino a quattro modalità possono essere usati simultaneamente. . .
·                     BPSK31 a 2000 Hz
·                     QPSK31 a 1000 Hz, BPSK31 a 2000 Hz
·                     QPSK31 a 1000 Hz, PSK63F a 1500 Hz, BPSK31 a 2000 Hz
·                     QPSK63 su 1000 Hz, PSKR125 a 1500 Hz, BPSK63 a 2000 Hz
·                     QPSK125 a 1000 Hz, PSKR250 a 1500 Hz, BPSK63 a 2000 Hz
·                     QPSK250 a 800 Hz, PSKR500 a 1500 Hz, BPSK250 a 2200 Hz
·                     QPSK500 a 800 Hz, PSKR1000 a 1500 Hz, BPSK500 a 2200 Hz
·                     PSKR500 a 1000 Hz, PSK63F a 1500 Hz, PSKR125 a 2000 Hz, e PSKR250 a 2500 Hz (5 minuti, 40 secondi totali). Le porzioni di questi ultimi delle trasmissioni PSKR250 e 500 sono formattati per Flmsg, una funzione all'interno del fldigi suite software. (In fldigi , andare a Configura > Varie > NBEMS > in "Ricezione di file flmsg." Fare clic su Apri con flmsg e Apri nel browser e selezionare la posizione desiderata del flmsg.exe file.)
·                     MFSK32 immagine su 1500 Hz (54 secondi)
I 30 minuti di Radiogram   è prevista per :
  • Sabato      1600 UTC      17.860 kHz
  • Domenica 0230 UTC         5745 kHz
  • Domenica alle 1300 UTC  6095 kHz
  • Domenica 1930 UTC      15670 kHz

... dalla IBB Murrow Edward R. Stazione di trasmissione in North Carolina.
E-mail rapporto di ricezione sono accolti radiogram@voanews.com .
Secondo Elliot, futuri programmi radiogram VOA trasmetterà una sola modalità alla volta. "In questo modo la massima possibile segnale-rumore e le possibilità migliori per una decodifica di successo. Queste trasmissioni sono un esperimento.Proveremo diverse modalità in programmi diversi per vedere quale funziona meglio con trasmettitori analogici AM onde corte. "



The Voice of America Radiogram show, hosted by Kim Andrew Elliot, KD9XB, will be testing a variety of digital modes on March 16 and 17.
The data transmissions can be decoded by anyone with an AM shortwave receiver using any of the popular sound-card-based programs such as Fldigi, Ham Radio Deluxe, MixW, MultiPSK, DigiPan (for BPSK31, BPSK63 and QPSK31 only),CocoaModem (for Macs) and others.
Each test will last one minute, unless otherwise specified, on the following modes at the audio frequencies indicated. During some tests as many as four modes will be used simultaneously . 

·                     BPSK31 at 2000 Hz
·                     QPSK31 at 1000 Hz, BPSK31 at 2000 Hz
·                     QPSK31 at 1000 Hz, PSK63F at 1500 Hz, BPSK31 at 2000 Hz
·                     QPSK63 on 1000 Hz, PSKR125 at 1500 Hz, BPSK63 at 2000 Hz
·                     QPSK125 at 1000 Hz, PSKR250 at 1500 Hz, BPSK63 at 2000 Hz
·                     QPSK250 at 800 Hz, PSKR500 at 1500 Hz, BPSK250 at 2200 Hz
·                     QPSK500 at 800 Hz, PSKR1000 at 1500 Hz, BPSK500 at 2200 Hz
·                     PSKR500 at 1000 Hz, PSK63F at 1500 Hz, PSKR125 at 2000 Hz, and PSKR250 at 2500 Hz (5 minutes, 40 seconds total). The latter portions of the PSKR250 and 500 transmissions are formatted for Flmsg, a function within theFldigi software suite. (In Fldigi, go to Configure > Misc > NBEMS > under “Reception of flmsg files.” Click Open with flmsg and Open in browser and select the desired location of the flmsg.exe file.)
·                     MFSK32 image on 1500 Hz (54 seconds)
The 30-minute Radiogram program is scheduled to air . . .
  • Saturday 1600 UTC at 17860 kHz
  • Sunday 0230 UTC at      5745 kHz
  • Sunday 1300 UTC at      6095 kHz
  • Sunday 1930 UTC at   15670 kHz


... from the IBB Edward R. Murrow Transmitting Station in North Carolina.
E-mail reception reports are welcomed at radiogram@voanews.com.
According to Elliot, future VOA Radiogram programs will transmit only one mode at a time. “This will ensure the highest possible signal-to-noise ratio and the best possible chances for a successful decode. These broadcasts are an experiment. We will try different modes in different programs to see which work best via AM analog shortwave broadcast transmitters.”