All posts by myradiowaves

Nella richiesta di budget 2019 il NIST (National Institute of Standards and Technology) include le stazioni di tempo e frequenza campione WWV e WWVH di Colorado e Hawaii tra i tagli previsti.

La notizia è stata recentemente comunicata dall’ARRL nella propria pagina al’indirizzo

NIST FY 2019 Budget Would Eliminate WWV and WWVH

08/11/2018The National Institute of Standards and Technology (NIST) FY 2019 budget request includes shutting down “NIST radio stations in Colorado and Hawaii” — in other words, WWV and WWVH. Radio amateurs, HF listeners, and others around the world routinely make use of the time and frequency standard signals, which also include propagation information. NIST said eliminating funding currently “supporting fundamental measurement dissemination” would include putting WWV and WWVH off the air for a saving of $6.3 million. The overall NIST FY 2019 budget request is $127 million, which, the agency said, is a net decrease of $49 million from FY 2018 levels.

“The proposed reductions will allow NIST to consolidate and focus on narrower core [fundamental] measurement programs while meeting budget levels,” the agency said in its FY 2019 budget summary. “NIST will focus on basic research while reducing funding for efforts applying some of its breakthroughs into new measurement applications.

The FY 2019 proposed budget cuts developed earlier this year came to light via Tom Witherspoon, K4SWL, who maintains The SWLing Post website, after a number of viewers called it to his attention. He posted an article on his blog.

“I’ve always considered WWV and WWVH to be the heartbeat of the shortwaves here in North America — a constant, timely companion and brilliant gauge of HF propagation,” Witherspoon wrote. I assumed both stations would be some of the last to go silent on the shortwaves.”

NIST said other “illustrative” cuts in the FY 2019 budget include:

  • $3.5 million for Lab to Market, which seeks to accelerate technology transfer from federal laboratories
  • $6.6 million in environmental measurements projects across NIST laboratories, including work measuring the impact of aerosols on pollution and climate change, and gas reference materials used by industry to reduce costs of complying with regulations
  • $5.8 million eliminating the NIST Greenhouse Gas (GHG) Measurements program, including Urban Dome research grants to advance the direct measurement of GHG emissions on the scale of cities or regions.
  • $6.7 million in forensic science, reducing the program size to $7.3 million by prioritizing measurement science in the NIST labs and eliminating program management functions and external grants for the Organization of Scientific Area Committees for Forensic Science and the Forensic Science Center of Excellence
  • $4.1 million in R&D targeting application of NIST quantum breakthroughs to applied measurement needs, including temperature and atmospheric gas metrology

“I find this budget request very disappointing,” Witherspoon said with respect to the proposed elimination of WWV and WWVH. “Let’s hope, somehow, this does not come to fruition.” He said The SWLing Post would be tracking and posting any new developments.

Nell’ultima versione di Multipsk (4.36) rilasciata in questi giorni è stata implementata la possibilità di decodificare le radiosonde RS41.

Il modo è disponibile tra quelli professionali e quindi a pagamento ed oltre a ricevere e decodificare alcuni dati può visualizzare la posizione della sonda sulla mappa propria del programma oppure su Google heart.

Nella foto si può vedere la decodifica della radiosonda lanciata alle ore 12:00 utc dall’aeroporto di Rivolto (UD). (Clicca per ingrandire)


**** WE ARE SORRY, BUT WINB JUST SENT US A NOTE THAT THE DRM TX WENT DOWN THIS MORNING 30 JULY! We are forced to cancel the scheduled broadcast on Wednesday and we will perform the test as soon as the transmitter is repaired! **** 😨


Please try to listen to our first ***DRM*** broadcast on 15670 kHz at 14-14.30 UTC and 15-15.30 UTC on Wednesday 1 August to North America and Western Europe.
This week you will listen to “Italian Shortwave Panorama” and for the first time to “Jordans Corner of Radio”, that will be on the air regularly from September on all our English broadcast on the 2nd and 4th week of the month!
“IBC DIGITAL” in MFSK32 (1500 Hz) will be always the last 5 minutes with two pictures.
Please send your reception reports to or post your comments on FB or TW!
Good listening!


WEDNESDAY….14.00-14.30 UTC 15670 KHZ ***DRM**
WEDNESDAY….15.00-15.30 UTC 15670 KHZ ***DRM**


Dear Friends, on the occasion of the most spectacular lunar eclipse of these years, we decided to go on air with a whole new transmission. So much beautiful music from the world, a nice selection of Oldies USA 60. Then Artem’s World Music, John Trudell Memories and much more. There will be the debut of Mistik (Massi) who after more than twenty years of absence from the microphones has prepared two hours of live with Soul 70 music. So many reasons to listen, we will be on the roof to admire the red moon, I like to think that our signal through mountains, cities and oceans carrying with us our little message of Brotherhood that through music we try to give and if we are lucky, we will wrap the earth with this positive energy. I’m already excited .. Jasmin

Cari Amici, in occasione del piu spettacolare eclissi di luna di questi anni, abbiamo deciso di andare in onda con una trasmissione tutta nuova. Tanta bella musica dal mondo, una simpatica selezione di Oldies USA 60. Poi Artem’s World Music , John Trudell Memories e molto altro ancora. Ci sarà il debutto del Mistik (Massi) che dopo oltre venti anni di assenza dai microfoni ha preparato due ore di diretta con musica Soul 70. Tanti motivi per ascoltarci, noi saremo sul tetto ad ammirare la luna rossa, mi piace pensare che il nostro segnale attraversi monti, città e oceani portando con se il nostro piccolo messaggio di Fratellanza che attraverso la musica cerchiamo di dare e se saremo fortunati, avvolgeremo la terra con questa energia positiva.

Sono gia emozionata..


SWL, listening place, home country, rx/ant, points

1. Jouni Kilpinen, Kanta-Häme, Finland. Elad FDM-S2 / 520 m wire / 40 m T2FD 74
1. Lars Jeppesen, Växjö, Sweden. SDR’s in Sweden: Malmö/Alingsås/Färnebo. 74
3. Risto Harjula, Raisio, Finland. SDR’s in South West Finland: Raisio/Paimio. 55
3. Kari Kallio, Lahti, Finland. Various remote SDRs around the Europe. 55
5. Jari Lehtinen, Lahti, Finland. 31
6. Claudio Tagliabue (IT2021SWL), Vertemate con Minoprio – CO, Italy (JN45mr) SDR receiver Elad FDM-S1 Delta-Ewe antenna 18 m. perimeter + preamplifier (self-made W7IUV) 30
7. Jan-Mikael Nurmela, Uurainen, Finland. NRD-525/NRD-535/IC-R71E at home. 19
8. David SWL, Sarralbe, France. 18
9. Dave Kenny, Reading, United Kingdom. AOR7030+ with 25m long wire. 17
10. Patrick Robic, Leibnitz, Austria. AOR AR-7030 with MK-1. 15
11. Lennart Weirell, Västerås, Sweden. SDR in Alingsås. 11
12. Hans-Joachim Pellin, Lübz, Germany 10
13. Janne Heinikangas, Jyväskylä, Finland

Il filtro notch per tenere a bada la banda FM 88-108 MHz è un accessorio ormai indispensabile sopratutto con l’attuale grossa diffusione di chiavette SDR e di ricevitori scanner. Fino ad ora ho utilizzato un vecchio filtro acquistato in fiera a Pordenone poi riprodotto in varie unità grazie ad una piccola dotazione strumentale per poter effettuarne la taratura. Ora desideravo provare qualcosa di più performante e sopratutto che avesse una minore attenuazione nelle bande adiacenti. Dopo alcune ricerche in rete ho deciso di provare quello costruito dalla JG HItechnology di IZ4OSG. Il filtro si presenta molto bene esteticamente, lungo 8,5 cm e del diametro poco superiore ai connettore bnc di cui è dotato per cui niente scatole o scatolette ma un bel tubetto serigrafato.

Le ottime caratteristiche sulla carta sono state confermate anche a livello pratico, l’attenuazione sulle frequenze adiacenti è molto minore rispetto al filtro utilizzato precedentemente mentre delle potenti stazioni FM non vi è traccia ne utilizzandolo con economiche chiavette e neppure con più costosi ricevitori professionali. Misure effettuate con il VNA non fanno altro che confermare il tutto.

Una nota di plauso al produttore molto disponibile e sopratutto veloce e preciso nella spedizione.


Marconi Radio International has planned two special broadcasts, from 1630 to 1930 UTC, as follows: on 7 April 2018 on 7720 kHz (100 Watts, USB Mode) and on 9 April 2018 on 6970 kHz (1000 watts, USB mode). The aim of those broadcasts is to celebrate the 70th anniversary of the New Zealand DX League with the hope that at least one of the frequencies will propagate to New Zealand. Reception reports to: marconiradiointernational (at)
Marconi Radio International ha previsto per il mese di aprile due trasmissioni speciali che andranno in onda dalle 1630 alle 1930 UTC come segue: il 7 aprile 2018 su 7720 kHz (100 Watts, USB) e il 9 Aprile 2018 su 6970 kHz (1000 Watts, USB).
Lo scopo di queste trasmissioni è di celebrare il 70 anniversario della Lega DX Neozelandese (New Zealand DX League). La speranza è che la propagazione consenta ad almeno una delle due frequenze di raggiungere la Nuova Zelanda. L’indirizzo e-mail per i rapporti di ricezione è: marconiradiointernational (at)