band stop

band stop

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• Helical loop antenna for 20 meters
  
  A Helical Loop Antenna for the 20-meters Band
  [ Hits: 6072 | Votes: 3 | Rating: 5.67 ]

• 2 element yagi wire beam
  
  A 2 element yagi wire beam antenna for the 20 meter band based on the ...
  [ Hits: 1857 | Votes: 7 | Rating: 3 ]

• A Six element yagi antenna for the 50 MHz
  
  Christoph petermann's df9cy six element yagi antenna for six meter band
  [ Hits: 1774 | Votes: 4 | Rating: 8 ]

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

• 10-80 Slinky Dipole
  
  A slinky dipole antenna that covers almost all HF bands mede with a flexible 90 ...
  [ Hits: 1377 | Votes: 7 | Rating: 6.86 ]

• 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 ]

• Magnetic Loop 80-20 by N4SPP
  
  A transmitting magnetic loop antenna that can cover from 80 to 20 meters band with ...
  [ Hits: 2289 | Votes: 10 | Rating: 5.9 ]

• W4JOH Cobra Antenna
  
  The original Cobra antenna is a multiband 160 or 80 to 10 meter designed by ...
  [ Hits: 1711 | Votes: 1 | Rating: 10 ]

• 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 ]

• ZS6BKW Multiband antenna system
  
  ZS6BKW optimized version of the venerable G5RV and different antenna placement on the roof and ...
  [ Hits: 3206 | Votes: 5 | Rating: 4.6 ]
• The ZS6BKW Multiband HF Antenna
  
  Antenna design from ZS6BKW G0GSF similar to the G5RV but it actually resonates on five ...
  [ Hits: 6518 | Votes: 8 | Rating: 6.88 ]

• Anatech Electronics - Sam Benzacar
  
  Anatech Electronics manufactures RF filters for communication systems Military and commercial as well as RF ...
  [ Hits: 282 | Votes: 1 | Rating: 10 ]

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

• ScopeIIR - Grant Griffin
  
  ScopeIIR an Infinite Impulse Response IIR digital filter design tool for Windows It designs high ...
  [ Hits: 778 | Votes: 2 | Rating: 5.5 ]

• Diplexer
  
  This program expedites the design of lumped element diplexers using both the lowpass highpass and ...
  [ Hits: 1498 | Votes: 5 | Rating: 4.6 ]

• YCCC 6 Band Receive Bandpass filter
  
  This is a 6 band receive only filter designed to protect your receiver front end ...
  [ Hits: 1962 | Votes: 2 | Rating: 9.5 ]
• 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 ]

• VK5VKA 's non technical bpl/plc information
  
  VK5VKA page contains general information and comment on BPL Broadband over Power Lines or as ...
  [ Hits: 421 | Votes: 0 | Rating: 0 ]

• TVI and BCI Filters - Christoph Petermann
  
  TVI and BCI bandpass and bandstop filters in SMD technique. Schematics and images.
  [ Hits: 4329 | Votes: 6 | Rating: 5 ]

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