top band

top band

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• 160m double L antenna
  
  Planning and modeling a special L antenna for Top Band
  [ Hits: 1138 | Votes: 0 | Rating: 0 ]
• Compact Top Band antennas
  
  Modeling compact 160 meter antennas inverted L half wave dipoles and linearly loaded dipole ...
  [ Hits: 803 | Votes: 1 | Rating: 10 ]
• Ultracompact 160 Meter Antenna - NC4FB
  
  A compact antenna for 160 meters suitable for hams tha want operate top band buh ...
  [ Hits: 1367 | Votes: 1 | Rating: 3 ]

• DL6WU Yagi antenna - M1EEV
  
  The DL6WU yagi antenna for 23cm band
  [ Hits: 1777 | Votes: 18 | Rating: 7.17 ]

• 80 meters spiral loop antenna
  
  N4SPP 80 meters band spiral loop antenna based on SM0VPO design
  [ Hits: 5253 | Votes: 10 | Rating: 7.1 ]

• Double Bazooka - F3DD
  
  A monoband antenna with large bandwidth in French
  [ Hits: 2150 | Votes: 12 | Rating: 6.42 ]

• 160m Horizontal Delta Loop
  
  A full size delta loop antenna for top band by PA3FUN
  [ Hits: 2054 | Votes: 5 | Rating: 6.2 ]

• Folded dipole antenna by N4SPP
  
  A quarter size cobra dipole antenna a multiband dipole antenna for 40 to 10 meters ...
  [ Hits: 2623 | Votes: 1 | Rating: 8 ]

• DM9EEs info site on FCP - folded counter poise (Radial) - Tom
  
  No space for 120 ground radials nor 4 elevated radials Give the FCP a try ...
  [ Hits: 523 | Votes: 1 | Rating: 9 ]

• Antenna Efficiency
  
  K0BG article con antenna efficiency covering topics like radiation resistance coil losses and ground losses ...
  [ Hits: 458 | Votes: 0 | Rating: 0 ]

• Short vertical antenna for 80 Meters
  
  A short antenna for 80 meters band article with pictures and details by N4SPP ...
  [ Hits: 1468 | Votes: 3 | Rating: 4 ]

• 70Mhz Sporadic E report
  
  Sound clips and notes on sporadic E on four meter band
  [ Hits: 310 | Votes: 0 | Rating: 0 ]

• K2 Change 20 30m band filter
  
  Elecraft K2 mod. Narrower bandpass filter, better stopband attenuation
  [ Hits: 231 | Votes: 0 | Rating: 0 ]

• ON4UN and the Ten-Tec Orion
  
  Ten Tec ORION review by ON4UN after several months of usage
  [ Hits: 1432 | Votes: 1 | Rating: 10 ]

• Cushcraft A3S Refurbishing
  
  Refurbishing my 10 years old Cushcraft A3S triband HF Antenna
  [ Hits: 659 | Votes: 1 | Rating: 5 ]

• Freeband / 6m mod on VX-6R
  
  Forum thread about possibility to extend VX-6R to freeband and 6 meters
  [ Hits: 4184 | Votes: 3 | Rating: 6 ]

• 811 Linear Amplifier project
  
  A lower power desktop linear with integrated 120vac power supply This very compact dual 811 ...
  [ Hits: 1627 | Votes: 2 | Rating: 10 ]

• Band-stop filter
  
  Wikipedia page on Notch filter, a narrow stopband - high Q factor filter
  [ Hits: 443 | Votes: 2 | Rating: 2.5 ]
• Notch Filter Designer
  
  Online calculator, Butterworth Bandstop (Notch) Filter Designer
  [ Hits: 806 | Votes: 6 | Rating: 3.33 ]

• 2m sniffer - G3UVR
  
  How to construct a Sniffer for 2m band
  [ Hits: 675 | Votes: 0 | Rating: 0 ]

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