traps

traps

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• 40m 2 elements HQ Traps Yagi - The longest element has a total length of 14m and has a boom length of 5.5 meters featuring a total bandwith of 166 kHz
  [ Hits: 174 | Votes: 1 | Rating: 8 ]

• 160-80-40 Metre Trapped V-Dipole - A Trapped dipole inverted V antenna for lower HF Bands. Construction details are for temporary installation. Permanent installations will require additional ruggedising and waterproofing however the basic electronics concepts remain the same. This project includes SWR plots for the three bands and pictures details of the homemade traps.
  [ Hits: 110 | Votes: 0 | Rating: 0 ]
• Make your own 40/80 Dipole - Make your own dipole for 40 and 80 meters band, assembling standard product parts like 40 meter traps, the 1:1 balun and insulators
  [ Hits: 126 | Votes: 0 | Rating: 0 ]

• Coax Notch Traps - Attenuating adjacent bands - Targeted Attenuation for Adjacent Bands. Filtering is needed between the two rigs to prevent physical damage to the RX front end and to prevent the kinds of high-signal overload conditions like desense and IMD - as well as containing harmonic energy.
  [ Hits: 134 | Votes: 0 | Rating: 0 ]

• Multiband trap dipole - This antenna is a classical antenna working on 7,10,14,18,50 MHz is implemented with three traps for 30, 17 and 6 meters
  [ Hits: 271 | Votes: 0 | Rating: 0 ]
• Space-Efficient Excellence: Inverted L Multi-Band HF Antenna - Discovering a solution for limited space, the inverted L HF antenna emerges as a stellar performer. Half the size of a dipole, it ensures optimal installation in restricted areas, maintaining superb transmission (TX) and reception (RX) characteristics. Spectrum Communications' multi-band version, featuring traps, proves even more space-friendly without compromising performance. A fiberglass pole offers sturdy support, while proper grounding, an RF choke, and occasional tuning contribute to a high-performing and reliable antenna system.
  [ Hits: 188 | Votes: 0 | Rating: 0 ]

• Low Cost Antenna Traps - How to home made antenna traps with material you can easily find, and how to properly tune it.
  [ Hits: 470 | Votes: 5 | Rating: 6 ]
• Tuning Antenna Traps - The problem with making your own trapped HF antennas is usually getting the coaxial traps tuned to frequency. This article explains a method using a RF signal generator at +10dBm output into the coaxial trap.
  [ Hits: 276 | Votes: 2 | Rating: 6.5 ]
• Constructing and Using Chokes - Using Chokes and Traps: how to make them, how they work.
  [ Hits: 391 | Votes: 0 | Rating: 0 ]
• RF Trap Resonant Frequency - RF traps for a lightweight 40/30/20/17/15m inverted V dipole antenna for SOTA purposes and how you can use a modern antenna analyser to find the resonant frequency of a HF trap.
  [ Hits: 199 | Votes: 0 | Rating: 0 ]
• Optimizing Coax-Cable Traps - A document that will guide you on Coaxial-Cable trap optimization process to gain on global antenna performance and on increasing effective bandwidth.
  [ Hits: 167 | Votes: 0 | Rating: 0 ]

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