Author: iz4wnp

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Implementazione di DSP tramite PIC

L’articolo tratta alcune questioni di elaborazione numerica dei segnali e i metodi più comunemente adottati per implementare DSPs con i microcontrollori della Microchip. L’elaborazione numerica dei segnali è una disciplina i cui fondamenti risalgono ai lavori…

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Ricaricare una batteria nichel-cadmio in modo affidabile ed economico

L’obiettivo di questo articolo è fare una panoramica sulle batterie NiCd, sulla tecnologia realizzativa e sui metodi di ricarica. Si discuteranno i vantaggi e gli svantaggi…

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ICOM IC-7300 analogue {analog} s-meter prototype testing

ICOM IC-7300 Features Frequency: 1.8~200MHz Power Range: 30/300/3000W Input Connector: N Female Cross needle SWR and Power indications in one meter unit. Reading the scale…

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FT8 DXpedition Mode Field Test Attracts Upward of 500 Participants

It was the Fox and the Hounds on the bands March 6, as the WSJT-X development group conducted a field test of the still-beta FT8 DXpedition Mode. A…

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A Sunspot Fizzles While Storms Head to Earth: Solar Storm Forecast: 03-08-2018

“The Sun’s activity both fizzles and picks up this week. Old region 2699 that we had high hopes would boost the solar flux as it…

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Vinduino: una conveniente tecnologia open-source per il risparmio idrico

Vinduino è un sistema basato su tecnologie open-source sia hardware che software che permette l’irrigazione automatica dei campi e al contempo un notevole risparmio idrico….

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La criptovaluta decentralizzata IOTA per l’Internet of Things è sicura?

IOTA, acronimo di Internet of Things Application, è una moneta decentralizzata nata per facilitare le transazioni tra i dispositivi appartenenti alla rete IoT. Scalabilità, efficienza,…

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PJ5T PJ5/SP2FUD PJ5/SP2GCJ PJ5/SP9FIH Sint Eustatius Island. From DXNews.com

SP2FUD, SP2GCJ, SP9FIH will be active from Sint Eustatius Island, IOTA NA – 145, as PJ5T, PJ5/SP2FUD, PJ5/SP2GCJ, PJ5/SP9FIH., PJ5T PJ5/SP2FUD PJ5/SP2GCJ PJ5/SP9FIH Sint Eustatius…

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T32AZ Kiritimati Island Eastern Kiribati. From DXNews.com

T32AZ. KH6QJ will be active again from Kiritimati Island, IOTA OC – 024, Eastern Kiribati, 17 – 24 April 2018, as T32AZ., T32AZ Kiritimati Island…

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ED9E Ceuta. From DXNews.com

Members of the Amateur Radio Union of Ceuta will be active from Ceuta, in CQ WW WPX SSB Contest, 24 – 25 March 2018, as…

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PJ6/AI5P Saba Island. From DXNews.com

Rick, AI5P will be active as PJ6/AI5P, from Saba Island, IOTA NA – 145, 28 April – 5 May 2018., PJ6/AI5P Saba Island. From DXNews.com,…

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ARRL Repurposes AM Broadcast Transmitter for Ham Radio Use

Thanks to a joint effort by ARRL and the Vintage Radio and Communications Museum of Connecticut (VRCMCT), a classic Gates BC-1T AM broadcast transmitter will…

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USRP N310 – Simplifying SDR Deployment

Product Overview The USRP N310 is a networked software defined radio that provides reliability and fault-tolerance for deployment in large scale and distributed wireless systems….

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Yaesu FT-4XR FM DUAL BAND TRANSCEIVER

Yaesu FT-4XR FM DUAL BAND TRANSCEIVER Range: 136-174, 400-480MHz Antenna Connector: SMA Power Source: 12.6 VDC Nominal, Battery Operated Exclusively FCC ID K6620695X20 granted on…

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NTE Low Temp Solder Wire Connections

DX Engineering carries the NTE Low Temp Solder Wire Connectors. All you need is a heat gun to make solder connections between wires. Four sizes…

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Valerie Hotzfeld, NV9L, is “Amateur of the Year,” as Hamvention® Announces Award Winners

The Hamvention® Awards Committee has announced that Valerie Hotzfeld, NV9L, of Crescent City, Illinois, is the 2018 “Amateur of the Year.” The committee — chaired…

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Il controllo digitale incontra l’analogico intelligente per semplificare il design

Microchip Technology ha introdotto due nuove famiglie di microcontrollori progettate pensando all’innovazione del cliente. La nuova famiglia di microcontrollori PIC16F18446 sono componenti ideali per l’uso…

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SWIPT – Trasmissione Wireless Simultanea di Energia e Informazione

Un recentissimo settore della ricerca noto come SWIPT (Simultaneous Wireless Information and Power Transfer) si pone oggi la sfida di trasmettere simultaneamente energia ed informazione….

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A52YL Bhutan. From DXNews.com

Mio, JR3MVF and Kay, WA0WOF will be active as A52YL, from Bhutan, 29 April – 5 May 2018., A52YL Bhutan. From DXNews.com, ,

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PJ5/AI5P Sint Eustatius Island. From DXNews.com

Rick, AI5P will be active as PJ5/AI5P, from Sint Eustatius Island, IOTA NA – 145, 9 – 16 April 2018., PJ5/AI5P Sint Eustatius Island. From…

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PJ4R PJ4/KK9A Bonaire Island. From DXNews.com

John Bayne, KK9A will be active as PJ4/KK9A, from Bonaire Island, IOTA SA – 006, 19 – 23 March 2018., PJ4R PJ4/KK9A Bonaire Island. From…

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A52AEF A52IVU Bhutan. From DXNews.com

JH3AEF and JA3IVU will be active from as A52AEF and A52IVU, from Bhutan, 29 April – 5 May 2018., A52AEF A52IVU Bhutan. From DXNews.com, ,

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Uno sguardo al futuro dell’intelligenza artificiale: le deep neural networks

Dispositivi come auto automatiche e case intelligenti sono ormai entrati nel gergo quotidiano. Rendere una macchina ‘intelligente’ è comunque una sfida complessa; di recente, però, c’è…

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4V7R Haiti. From DXNews.com

Members of Lazy DXers Team will be active as 4V7R, from Haiti, IOTA NA – 096, 19 – 29 October 2018., 4V7R Haiti. From DXNews.com,…

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3C3W Bioko Fernando Po Island Equatorial Guinea. From DXNews.com

Flight to Annobon Island tomorrow will not happen. Next closest possible date to get to Annobon is Saturday, 10 March 2018., 3C3W Bioko Fernando Po…