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Previsioni Meteo Umbria

Risorse di RADIOASTRONOMIA ed E.M.E. by I0NAA

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*** RSS A.R.R.L.

The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources.
  • WL2XUP is an FCC Part 5 Experimental station operated by Lin Holcomb, NI4Y, in Georgia. It’s licensed to operate with up to 400 W effective radiated power (ERP) between 40.660 MHz to 40.700 MHz.John Desmond, EI7GL, reports that as of mid-July, WL2XUP was intermittently transmitting on Weak-Signal Propagation Reporter (WSPR) on 40.662 MHz (1500 Hz) for 2 minutes out of every 10, with an output p...

  • On July 6, an evening Army Military Auxiliary Radio System (MARS) HF practice net in Federal Emergency Management Agency (FEMA) Region 2 (New York and New Jersey) was interrupted by several “mayday” distress calls on the channel, which is shared with the maritime service. Net control station Ron Tomo, KE2UK, immediately halted training and attempted (without success) to establish radio communic...

  • The Missouri First Capitol State Historic Site in St. Charles will host an amateur radio event on August 10, in association with this year’s celebration of the Missouri State Bicentennial. The original capitol building on the west bank of the Missouri River served as the state’s capitol from 1821 to 1826. The site is part of the St. Charles Historic District in the city’s Riverfront neighborhoo...

  • The FCC is seeking nominations for a chairperson and members of the Technological Advisory Council (TAC). In a July 21 Public Notice, the Commission announced that it intends to re-establish the TAC for 2 years, by August 20, 2021. It’s anticipated that the renewed panel could hold is first meeting in October.The TAC provides technical advice to the FCC and makes recommendations on the issues a...

  • At its just-concluded July 2021 meeting, the ARRL Board of Directors approved By-Law changes creating a third Standing Committee that joins the existing Administration and Finance Committee and Programs and Services Committee.The charter of the new Emergency Communications and Field Services Committee (EC-FSC) is to develop and recommend new or modified Board policy and programs for emergency c...

  • Tad Cook, K7RA, Seattle, reports: It’s exciting to observe increasing sunspot activity. Recently Solar Cycle 25 produced new sunspots frequently, and I watch them pop up every day on Spaceweather.com. New sunspots emerged on July 14, 16, 17, 19 and 20, and two new ones appeared on July 21. When I look at this image from July 22, our sun is peppered with spots, reminding me of past solar cycles....

  • *** RSS DX ZONE

    Latest articles, reviews and links posted to The DXZone.com, an amateur radio, cb radio, scanning and shortwave radio, reference site The DXZone.com
  • 160m Spitfire Antenna, Portable HF Antenna Options , Kenwood Ts590 v Elecraft K3, FTdx3000 Information pages, Kantronics TNC Wiring, USB to Serial Drivers by PROLIFIC, PC programming cable for Kenwood TH-F7E

  • Beginning 2022 EZNEC will be released to the public domain and become free of cost and can be freely copied and distributed.

  • Homebrewing a 6 Meter Yagi, Online Toroid Multi Calculator, RF Impedance Matching Calculator, IAT Interactive Antenna Table , Basic Microwave Antennas, FT-817 CAT interface, 17 meter QRP Transmitter,

  • Practical Amateur Radio Grounding, How to Ground an Antenna: aerial earthing, 6 meter portable antenna, Electronic Ionosonde to Monitor the Ionosphere , History of the Hexbeam Antennas, 43 Elements Yagi Antenna for 23cm band, HexBeam Antenna Explained,

  • Speaker Wire EFHW Antennas 20m/ 40m, QRP 20m Transmitter, 4m QRP Transverter, A Homebrew Yagi for 1296 MHz DX, 23cm 1296MHz Field Day Yagi, Short DL6WU yagi for 23cm, DL6WU Yagi Antennas for 1200 MHz

  • IC-R20 by Icom. Wideband Receiver Professional radioreceiver, allow double receiver, from HF to Microwave, digital recorde, DTCS, Memories and 11 hours countinuous reception.

  • Antennas/80MA dedicaed vertical antenna for 80 meters band based on a 40 meter vertical experiment

  • Antennas/BeverageA home made Beverage system for portable use. The goal was to switch between 4 single Beverage antennas without interfering on the other receiving stations.

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    WebPages soci ARIPG

    I0GEJ  Lidio

    I0NAA  Mario

    IK0FUX  Francesco

    IK0UTM  Vanni

    IK0XBX  Francesco

    IK0YUT  Luigi

    IU0LFQ  Alessio  (new)

    IZ0ABD  Francesco

    IZ0DXD  Sergio

     

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