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• Comparing Mobile whip versus EF HW Vertical - PH0NO
  
  PH0NO conducted field tests comparing a mobile antenna DX UHV to an end fed half ...
  [ Hits: 81 | Votes: 0 | Rating: 0 ]

• VA6AM Contesting Accessories - VA6AM
  
  Custom built high and low power power band pass Filters low band triplexers triplexers and ...
  [ Hits: 119 | Votes: 0 | Rating: 0 ]

• Kuhne Electronic - Kuhne Electronic
  
  High quality microwaves components for professional and radioamateurs Power Amplifiers Low Noise Amplifiers Es hail ...
  [ Hits: 106 | Votes: 0 | Rating: 0 ]

• Homebrew GPS tracker - F1ATB
  
  It is easy today to build a GPS tracking system for mobile applications that can ...
  [ Hits: 241 | Votes: 1 | Rating: 7 ]

• KX3 assembly videos - VE9KK
  
  Four part series of assembly videos of the Elecraft KX3 Even if these videos are ...
  [ Hits: 32 | Votes: 0 | Rating: 0 ]

• UTSOURCE.net - utsource
  
  UTSOURCE net is a professional purchasing B2B B2C tools in electronic components field UTSOURCE provides ...
  [ Hits: 99 | Votes: 0 | Rating: 0 ]

• A600 Power Amplifier Project - PA0NHC
  
  This is a power amplifier project for a RF 600W 1 8 MHz to 70 ...
  [ Hits: 100 | Votes: 0 | Rating: 0 ]

• 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 ]
• JRC NVA-88 Modification - JRC
  
  Adding 2 RCA inputs 1 high impedance filtered audio output RCA 3 3 HIGH PASS ...
  [ Hits: 55 | Votes: 0 | Rating: 0 ]

• Bandpass Filter Calculator - learningaboutelectronics
  
  Passive Bandpass Filter online calculator and filter formulas Active Inverting Op Amp Bandpass Filters Active ...
  [ Hits: 171 | Votes: 3 | Rating: 5.33 ]

• Repair or Replace Electrolytic Capacitors - W6OVP
  
  For low voltage applications like cathode bypass capacitors most vintage types have an axial configuration ...
  [ Hits: 122 | Votes: 1 | Rating: 6 ]

• 20m 30m 40m Bandpass Filters - AB2EW
  
  Homemade LC Bandpass Filters for 20M 30M 40M In multi station environments like special events ...
  [ Hits: 388 | Votes: 1 | Rating: 10 ]
• Band Pass Filters for HF Transceivers - K4VX
  
  If your multiple transceiver station is suffering of intrastation interference this handy and inexpensive band ...
  [ Hits: 129 | Votes: 0 | Rating: 0 ]
• A compact 5 bands remote switchable BPF - ON7EQ
  
  These band filters are based on 3 or 5 sections Butterworth band pass filters maintaining ...
  [ Hits: 224 | Votes: 0 | Rating: 0 ]
• A 2 meter band-pass cavity using surplus Heliax - ka7oei
  
  Cavity is often required at a busy site to not only prevent its receiver from ...
  [ Hits: 131 | Votes: 2 | Rating: 3 ]
• Enhancing Frontend Performance with Optimized Band Pass Filters - PA3AKE
  
  This article explores the nuanced design challenges of Band Pass Filters BPF in radio receivers ...
  [ Hits: 82 | Votes: 0 | Rating: 0 ]

• 17 meter QRP Transmitter - KB9II
  
  1 watt 17 meter cw transmitter that was originally done about 10 years ago as ...
  [ Hits: 122 | Votes: 0 | Rating: 0 ]

• Miniature CI-V for Icom Radios - IW7EHC
  
  With some fantasy the circuit can be easily assembled on a small scrap of pre ...
  [ Hits: 117 | Votes: 0 | Rating: 0 ]

• A Simple Spectrum Analyzer - AA8C
  
  This is a swept filter spectrum analyzer Basically RF and swept oscillator signals are fed ...
  [ Hits: 121 | Votes: 0 | Rating: 0 ]

• Innovative 2m to HF Converter - N1UL
  
  Ulrich L Rohde N1UL conceived an outstanding 2m to HF receiving converter with specific requirements ...
  [ Hits: 96 | Votes: 0 | Rating: 0 ]

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