high q

high q

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• Building High Power, High Q, Loading Coils - This page describes the loading coil (inductor) that W8WWV built for my center-loaded 160 meter band (1.83 MHz) vertical antenna.
  [ Hits: 6885 | Votes: 5 | Rating: 5.4 ]
• 160 Meter short TX loop antenna - Here is a successful 160 Meter short TX loop antenna 4 feet high, 3 feet wide, and 6 inches deep.
  [ Hits: 8384 | Votes: 4 | Rating: 5.25 ]
• 80/160 Dual band vertical - This 80/160 meter antenna is constructed from six 12 foot aluminum tubes to form a slip-up mast antenna some 60 feet high by K0RWU
  [ Hits: 5855 | Votes: 0 | Rating: 0 ]

• Using the half-square antenna for low bands - Can’t put up a really high horizontal antenna for 80-meter DXing? Maybe the vertically polarized Half-Square might be the antenna for you.
  [ Hits: 3210 | Votes: 3 | Rating: 6.33 ]

• Antenna Loading Coil Construction Techniques - This page explains how to construct high-Q inductor coils.
  [ Hits: 5887 | Votes: 11 | Rating: 5.55 ]

• The Grid Yagi for 144 Mhz - The Grid Yagi (or Grid Quad) is a high performance yagi antenna that can be built with readily obtainable inexpensive materials. Described here is a 6 element 2 meter version with a boom length of about 1 wavelength, shown
  [ Hits: 2504 | Votes: 2 | Rating: 5 ]

• X-Beam antennas - Two element X-Beam is a high-performance broad-band antenna that is ideal for Ham radio operators with limited space. X-Beams are inexpensive and easy to build. The performance of the simple X-beam is amazingly similar to larger, more conventional antennas by 4S7NR
  [ Hits: 4041 | Votes: 11 | Rating: 7.46 ]

• Corner reflector antenna - Do you need a high gain antenna? Have you suffered on picking up interference from unwanted direction? You need a directional antenna but a 12 element Yagi will be too attractive!
  [ Hits: 1709 | Votes: 4 | Rating: 3.75 ]

• Multi Band Antenna Traps - These devices are called Traps, but they are actually more like frequency sensitive switches. They are parallel resonant, high Q, tuned circuits which provide a very high impedance at their frequency of resonance.
  [ Hits: 4851 | Votes: 3 | Rating: 6 ]

• Jacksonville antique radio society - The official newsletter of the jacksonville antique radio society, highlighting jarsclub activities.
  [ Hits: 574 | Votes: 3 | Rating: 10 ]

• Contest Club Ontario - Contest Club Ontario (CCO) is Ontario's entry into International Club competitions in the 21st Century, providing one vehicle to highlight Canadian participation in these contests.
  [ Hits: 375 | Votes: 1 | Rating: 10 ]

• W3JUP Jupiter Tequesta Repeater Group - The JTRG is an active club affiliated with the American Radio Relay League (ARRL). and dedicated to further the art of amateur radio communication, serve the public, and promote high standards in amateur radio.
  [ Hits: 539 | Votes: 0 | Rating: 0 ]

• Packaging Radio Equipment for Shipping
  [ Hits: 419 | Votes: 1 | Rating: 9 ]

• Comtechpst.com - High Power RF Amps - Comtech PST offers solid-state power amplifiers in frequency ranges from 1 MHz through 3.6 GHz, with output power levels ranging from 5 watts to over 30 kW
  [ Hits: 3174 | Votes: 3 | Rating: 7.33 ]

• QRPKits - Hendricks QRP Kits is a company that specializes in high quality, low cost QRP Kits
  [ Hits: 6991 | Votes: 4 | Rating: 7.75 ]

• ViPEC Network Analyzer - This program intended for electronic circuit analysis (mainly for Linux). ViPEC is a powerful tool for the analysis of high frequency, linear electrical networks.
  [ Hits: 1190 | Votes: 0 | Rating: 0 ]

• BIP Electronics Lab Oscilloscope - Freeware windows oscilloscope uses the sound card's input to measure signals. This means that the quality of the scope depends on the quality of your sound card. The scope automatically uses the highest sample frequency available at the input that you select
  [ Hits: 10065 | Votes: 16 | Rating: 5.5 ]

• Audio processor for SSB transceiver - This circuit consists of microphone amplifier and a high pass filter. Suitable to improve signal readability.
  [ Hits: 1447 | Votes: 1 | Rating: 1 ]

• Accurate Inductance Calculator - This page allows you to calculate in the most accurate way high-Q inductor coils.
  [ Hits: 1155 | Votes: 3 | Rating: 6.33 ]

• A low cost UHF/VHF duplexer - Duplexers for dual band radio are usually high pass filter and low pass filter combined in the same box. This circuit is a design within a cost of US$10.
  [ Hits: 8615 | Votes: 16 | Rating: 5.88 ]

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