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Antennas : 40M

• 40m Wire Antennas Comparison - PH0NO
  
  On the field comparison among C Pole antenna an EFHW vertical antenna and an Inverter ...
  [ Hits: 172 | Votes: 1 | Rating: 3 ]

• An Overview of Beverage Receiving Antennas - N0AX
  
  This article explores Beverage antennas a type used for low frequency radio reception Despite the ...
  [ Hits: 19 | Votes: 0 | Rating: 0 ]

• Antennas of Field Day - N8HKU
  
  Main High Frequency Antennas from the 2009 LARC FARL Field Day Ford Amateur Radio League ...
  [ Hits: 414 | Votes: 0 | Rating: 0 ]

• Broadband receiving antenna matching
  
  This article addresses the subject of obtaining the best signal transfer from an antenna to ...
  [ Hits: 6692 | Votes: 4 | Rating: 6 ]

• USA frequency allocations - NTIA
  
  The radio spectrum in usa PDF File representing the united stares frequency allocations in graphical ...
  [ Hits: 5838 | Votes: 4 | Rating: 8 ]

• Valcom Fibreglass Whip Antennas - Sales
  
  Manufacturer of Fibreglass Whip Antennas Low and mediun Frequency HF and VHF Antennas Specialized in ...
  [ Hits: 3352 | Votes: 2 | Rating: 8 ]

• PRO-COMM INC - Sheryl Visone
  
  High power UHF L band S band C band microwave frequency amplifier and oscillator devices ...
  [ Hits: 369 | Votes: 0 | Rating: 0 ]

• Low Frequency Transmission Modes
  
  Article by W1TAG on operating modes used on low banding The 2200 meter band 135 ...
  [ Hits: 438 | Votes: 0 | Rating: 0 ]

• Recognition of CW signs at different listening levels and frequencies - PubMed
  
  The recognition of telegraphy masked by noise at 40 and 80 signs min telegraphy speed ...
  [ Hits: 81 | Votes: 1 | Rating: 7 ]

• Propagation on 630 Meters and 2200 Meters - K9LA
  
  This is a theoretical look at propagation on 630 Meters and 2200 Meters using ray ...
  [ Hits: 39 | Votes: 1 | Rating: 10 ]

• Maldol MFB-300 HF vertical antenna review - g0kya
  
  The Japanese made Maldol MFB 300 HF vertical antenna offer extremely wide band performance with ...
  [ Hits: 435 | Votes: 2 | Rating: 5.5 ]

• Frequenzdatenbank.de - TheThunder
  
  Frequency database for Germany Emergency services aircrafts radio and paging system with over 2000 frequencies ...
  [ Hits: 1414 | Votes: 14 | Rating: 4.15 ]

• APRS-Beacon
  
  The purpose of the APRS Beacon is to provide simple APRS compatible position beacons for ...
  [ Hits: 3426 | Votes: 7 | Rating: 2.57 ]

• Spectrogram  ^pop
  
  Shareware dual channel audio spectrum analyzer for Windows 2000 XP which can provide either a ...
  [ Hits: 49458 | Votes: 24 | Rating: 6.34 ]

• A switched Capacitor Audio Filter - AA8C
  
  Here is a rather nice audio filter for use with Ham Radio gear It features ...
  [ Hits: 73 | Votes: 0 | Rating: 0 ]

• Homebrew radio receiver - Gary Pershin
  
  Detailed plans of my homebrew receiver Frequency coverage is from below 300kHz to 30MHz Pictures ...
  [ Hits: 21378 | Votes: 27 | Rating: 5.81 ]

• SDR Receiver with RTL-SDR and Gnu Radio - VK3FOWL VK3YSP
  
  This project is a Software Defined Radio Receiver It has a frequency range of 24MHz ...
  [ Hits: 488 | Votes: 1 | Rating: 1 ]