Categoria: Notizie QRZ Now (http://qrznow.com)

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Output Power vs. S-Units

“This is one of the most important concepts in ham radio… the relationship between transmitted power and received signal strength. Sadly, many hams aren’t familiar…

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Happy Birthday! Samuel F.B. Morse

Developed in the 1830s and 1840s by Samuel Morse (1791-1872) and other inventors, the telegraph revolutionized long-distance communication. It worked by transmitting electrical signals over…

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DX Engineering UCGC-Z Universal Copper Grounding Clamps

DX Engineering Universal Copper Grounding Clamps DXE-UCGC-Z DX Engineering Universal Copper Grounding Clamps are custom designed to provide a ground rod mounting solution for various…

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The HF Radio Marketplace–How Much Do They Cost?

Antenna XR3 on prototype new Force 12 ToT (Tilt Over Tower) February 24, 2016 No comments 3D animation by Jeremy Cleaveland, KE0CGU Read more 2/2…

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Spotty Fast Wind & A Mars Quake: Solar Storm Forecast 04-25-2019

Equipment FTDX101 Series Catalog April 19, 2019 No comments     Read more Fifine Condenser Microphone K669B Review/Test April 19, 2019 No comments Plug and…

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Low Audio for ISS SSTV Transmissions Raises Issue of Crew’s Ability to Intervene

Reception problems owing to low audio levels plagued a recent round of Amateur Radio on the International Space Station-sponsored (ARISS) slow-scan TV transmissions. Some clever…

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Handheld Transceivers [ ARRL PODCAST ]

 These little radios are packed with features, but which one is best for you? VHF Handheld Transceivers [ ARRL PODCAST ] April 25, 2019…

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First Look: IC-9700 – Ham Nation 399

Ray Novak and George Thomas check out the new Icom IC-9700. Hooking up an analog microphone to your computer with Bob, coax connectors with Gordo,…

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FT4 Video presentation by K1JT

See More about New FT4 Here “At about 20 minutes into the presentation, Joe describes FT4 as being asynchronous, meaning that you can start transmitting…

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Yaesu FTM-400XDR Basic APRS Setup – Ham Radio Q&A

Antenna 8.5 DB gain for less than $40.00 – 50MHz Yagi May 30, 2016 No comments by W3GAS The Yagi is one of the simplest…

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Three BIRDS Constellation CubeSats Delivered to ISS for Orbital Deployment

A Cygnus resupply mission to the International Space Station (ISS) on April 11 also delivered three CubeSats of the BIRDS-3 constellation and three other CubeSats. The BIRDS-3…

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Faster, More Contest-Friendly FT4 Digital Protocol to Debut in a Week

A new, speedier, more contest-friendly digital mode is just days away in beta version. WSJT-X Developers say serious work on the new FT4 protocol began shortly after…

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Wouxun KG-UVN1 Dual Band DMR Review

MAIN  FUNCTIONS 3072 Channels 1024 Contacts 255 Receiving Groups 250 Zones 16 Scan List Radio ID Radio TX Contacts Duan Band and Dual Display Radio…

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The FT4 Protocol for Digital Contesting by K1JT

Joe Taylor, K1JT, Steve Franke, K9AN, and Bill Somerville, G4WJSApril 22, 2019 Introduction: FT4 is an experimental digital mode designed specifically for radiocontesting. Like FT8,…

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International Marconi Day

International Marconi Day celebrates the huge part Guglielmo Marconi played in the invention of radio. IMD is a 24 hour amateur radio event that is held…

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International Marconi Day

International Marconi Day celebrates the huge part Guglielmo Marconi played in the invention of radio. IMD is a 24 hour amateur radio event that is held…

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My best Satellite Demo Ever – 18 QSOs

Equipment GroundBreaker – Isolate your audio to remove RFI and ground loop problems! June 27, 2018 No comments The bhi GroundBreaker audio unit isolates the grounds on…

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FTDX101 Series Catalog

    Antenna BWDS Base Broadband HF Folded Dipole Antenna January 11, 2015 in: Antenna No comments Barker & Williamson’s BWDS series of broadband folded dipole antennas,…

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Fifine Condenser Microphone K669B Review/Test

Plug and play USB recording microphone with 5.9-Foot USB Cable included for computer PC laptop that connects directly to USB port for record music,computer singing…

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Camouflaged Ham Radio Antenna

Model Frequency (MHz) Gain (dBi) Length Feedline   VT-14 144-148 2.6 36 in. 3 ft. RG-58   VT-22 222-225 2.6 25 in. 3 ft. RG-58…

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Djibouti J20DX IOTA DXpedition Thwarted by Bureaucracy

Djibouti J20DX IOTA DXpedition operators Col McGowan, MM0NDX; Jonathan Bowes, MM0OKG, and Christian Cabre, EA3NT, have thrown in the towel on their efforts to operate…

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Lyrid Meteors Come, Bright Region Leaves 04.18.2019 -Space Weather News

“Space Weather quiets down this week though we continue to get hit with sporadic pockets of fast solar wind. Activity could increase at high latitudes,…

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First Look at the new Yaesu FTDX-101D – DXEngineering

Yaesu FTDX-101D Announced features for incredible Yaesu FTdx-101D include: * Elite-Level 160 to 6 Meters 100 Watt Transceiver* Superb and astonishing close-in Dynamic Range Performance,…

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Icom IC-9700 Review, Demo And Walkthrough

Icom IC-9700 Here it is! The all new Icom IC-9700 tri-band direct sampling transceiver. This is a most impressive rig and I will be showing…

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“Mentoring the Next Generation” is Hamvention and ARRL 2019 National Convention Theme

With an eye toward helping new and inexperienced hams enjoy the full range of activities that Amateur Radio has to offer, Hamvention® and the ARRL 2019…