Fundamentals of Radio Wave Propagation and NVIS Communication 
          
        
                
		
		
		Trapped Verticals and Radials: A Comprehensive Guide 
          
        
                
		
		
		5 Bands HF Vertical Antenna Project 
          
        
                
		
		
		ARRL Audio News October 31, 2025 
         ARRL Audio News October 31, 2025  
        
                
		
		
		New Book Release: Small Antennas for Small Spaces 3rd Edition 
          
        
                
		
		
		2026 ARRL Foundation Scholarship Program is Now Accepting Applications 
         The ARRL Foundation Scholarship Program has opened the application window for 2026 scholarships. Applications will be accepted through December 30, 2025, at 12 PM EST. Students are encouraged to apply for more than 170 scholarships ranging from $500 to $25,000. All applicants must be active, FCC-licensed amateur radio operators.  The scholarships were established by generous donors and are manag...  
        
                
		
		
		DIY No Holes Roof Mount for Ham Radio Antennas 
          
        
                
		
		
		Simple and Effective 10-Meter Vertical Antenna 
          
        
                
		
		
		The Multiband Tuned Doublet Antenna 
          
        
                
		
		
		DIY Slim Jim VHF Antenna for Satellite Reception 
          
        
                
		
		
		Hurricane Melissa Update 
         Updated Monday, October 27, 2025 @ 9 AM EDT (1300 UTC)
  ARRL thanks Carlos Alberto Santamaría González, CO2JC, for information included in this update.
  CUBA: NATIONAL EMERGENCY NETWORK WILL BE ACTIVATED THIS MONDAY, WITH NETWORKS ALREADY ACTIVATED IN EASTERN PROVINCES
  Forecasts indicate Hurricane Melissa will affect Cuba, especially its eastern region.
  Starting at noon today (Monday, October 27), th...  
        
                
		
		
		The October 2025 West Coast Qualifying Run has been rescheduled 
         The October 2025 West Coast Qualifying Run originally scheduled for Saturday,  October 25 at 2 PM PDT (October 25 at 2100z) had to be rescheduled.
  The new date and time are Wednesday, October 29 at 9 PM PDT (October 30 at 0400z).
  West Coast Station K6XX will transmit the official ARRL Qualifying Run on  3581.5, 7047.5, and 14047.5 kHz.  The speeds will run from 10 to 35 WPM. 
  
        
                
		
		
		ATV Reception on 23 cm Band 
          
        
                
		
		
		Fan Dipole Antenna - 80 to 6 meters 
          
        
                
		
		
		Important Notice: Keep Clear of Emergency Frequencies During the Contest Weekend 
         Tropical Storm Melissa is nearly stationary in Caribbean on Friday, October, 24, 2025. Forecasters warn it could quickly intensify, impacting Jamaica as a hurricane and causing catastrophic flooding and landslides Haiti and the Dominican Republic.  The Hurricane Watch Net (HWN) a group of licensed Amateur Radio Operators trained and organized to provide essential communications support to the Na...  
        
                
		
		
		Building a LiFePO4 Battery Pack for Emergency Power 
          
        
                
		
		
		ARRL Audio News October 24, 2025 
         ARRL Audio News October 24, 2025  
        
                
		
		
		Beverage Antenna - Low Band Reception Solution 
          
        
                
		
		
		Tropical Storm Melissa Update 
         All eyes and ears are on Tropical Storm Melissa, now in the Caribbean Sea. As of 11:00 AM EDT on Wednesday October 22, 2025, Melissa was drifting west-northwestward in the central Caribbean. Heavy rain and flooding are expected over portions of Hispaniola and Jamaica for the reminder of the week. A hurricane watch is in effect for the southwestern peninsula of Haiti, from the border with the Dom...  
        
                
		
		
		Small Loop Antennas for Hams: Ultimate Guide 
          
        
                
		
		
		5 Band Quad Antenna Design Guide 
          
        
                
		
		
		64 to 1 Antenna Matching Auto-transformer 
          
        
                
		
		
		Yagi 2 Elements on 80m Band 
          
        
                
		
		
		ITA telescopic masts 
          
        
                
		
		
		ARRL Year of the Club Website Contest — Call for Submissions! 
          
        
                
		
		
		FCC Announces Intent to Delete Minor Part 97 Provisions 
         As part of a much larger overhaul focused on deleting almost 400 obsolete wireless regulations, the Federal Communications Commission (FCC) has announced plans to delete or modify four minor provisions of Part 97.  ARRL’s Washington Counsel has reviewed the proposal and agrees that the deletions are to obsolete rules and will have no impact on today’s modern Amateur Radio Service. One of the del...  
        
                
		
		
		Cloudlog Helper  
          
        
                
		
		
		ARRL Audio News October 17, 2025 
         ARRL Audio News October 17, 2025  
        
                
		
		
		Amateur Radio Runs with the Chicago Marathon 
         Amateur radio operators serve their communities across the United States in many ways, before and When All Else Fails®. Using their skills as communicators, their personal equipment, and the Amateur Radio Service, the “hams” provide a needed boost to public safety radio systems. The 47th Bank of America Chicago Marathon, held on October 12, 2025, featured 55,000 runners from around the world. An...  
        
                
		
		
		VE9KK - My Antenna Restrictions: Overcoming Challenges for Hams 
          
        
                
		
		
		ARRL Online Auction Closes October 16 
          
        
                
		
		
		FM-DX Webserver 
          
        
                
		
		
		Ed Hare, W1RFI, Long time ARRL Lab Engineer, Passes Away 
         Edward F. “Ed” Hare, Jr., W1RFI, who spent decades as an employee of the ARRL Laboratory, has become a Silent Key. He died on October 10, 2025, at the age of 74 after an illness. Hare was first licensed as a teenager in 1963 as KN1CV (later KA1CV) and was an active ham throughout his life. He was an avid QRP operator, earning his Worked All States certificate with 250 milliwatts on CW. In his pr...  
        
                
		
		
		Loop Controller Group 
          
        
                
		
		
		68th Jamboree On The Air 
          
        
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