rf meter

rf meter

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• Modeling the W6NL 40m Moxon - This note looks at the antenna and antenna model for the 40 meter Moxon Yagi designed by Dave Leeson, W6NL. The performance of the antenna, through the model, will be explored in several typical settings.
  [ Hits: 2259 | Votes: 7 | Rating: 8.14 ]

• 40 Meter Delta Loop - A multi band delta loop antenna that work on 20 and 40 meters band, that can be used either on 15 meters with poor performances
  [ Hits: 3122 | Votes: 9 | Rating: 7 ]
• 40-10 Delta Loop Antenna - A multi band inverted delta loop antenna project that can be used from 40 to 10 meters band with full details and analysis of antenna performances on each band, document includes EZNec reports and setup pictures
  [ Hits: 16628 | Votes: 54 | Rating: 7.29 ]
• Delta Loop DX Antenna for 40 meters band - A monoband delta loop antenna for the 7 MHz. This vertically polarized DX Antenna is a full wavelength sngle side antenna and has a total length of 42.3 meters (137,1 inch) Can be easily setup with a flag pole or fishing pole as center top mast. For optimal performance lower side should be at 2 meter above the ground. This antenna offers a low radiation angle and 1 DB Gain.
  [ Hits: 433 | Votes: 3 | Rating: 6.33 ]

• High Performance 40 Meters Vertical - 40 meter vertical antenna construction, a shortened easy-to-build vertical, with no-radials, made from surplus military camouflage poles
  [ Hits: 2233 | Votes: 2 | Rating: 8.5 ]

• 3 Element Yagi Antenna Plan for 6 meter - A short boom, wideband 3 element yagi antenna plan for six meters that cover the entire band with a resonable performance and a 50 Ohm SWR of less 2:1. Article appeared in QST August 2007
  [ Hits: 1291 | Votes: 0 | Rating: 0 ]

• Testing Dipole vs Indoor Magnetic Loop Antenna - Testing performances of indoor antenna. A comparison of a magnetic loop antenna vs a classic wire dipole done using wsprlite on 30 meters band.
  [ Hits: 856 | Votes: 2 | Rating: 5.5 ]

• Three Element Collinear J Pole - Improved 2 Meter Performance with a Three Element Collinear copper J-Pole
  [ Hits: 1805 | Votes: 3 | Rating: 6.33 ]

• OCF Dipole - This is a popular antenna design as the performance is very good across the HF bands and requires little or no tuning. It is a dipole fed off center with a 4:1 current balun at the offset feedpoint. The antenna shown covers 80, 40, 20 and 10 meters with 15 meters and WARC bands
  [ Hits: 2559 | Votes: 7 | Rating: 9.43 ]

• Balloon Vertical Omni-Antennas - Experimenting vertical wire antennas for 40 and 20 meters supported by balloons resulting in excellent gain in RX and good overall performance against horizontal dipole
  [ Hits: 771 | Votes: 1 | Rating: 5 ]

• Keysight (Agilent) Signal Generator - Keysight offers numerous baseband, RF, and microwave signal generator (signal source) products. From basic to advanced, baseband to 67 GHz, Keysight signal generators are capable of frequency extensions to 500 GHz with millimeter-wave source modules.
  [ Hits: 238 | Votes: 0 | Rating: 0 ]

• Ameritron AL-811 Panel Meter Lights - A solutiom for the Ameritron AL-811(H) RF power amplifier, burnt panel meter lights. A common failure with the Ameritron AL-811 and similar amplifiers is that the panel meter lights burn out prematurely. These bulbs are usually integrated into the actual panel meter. The solution for this is to provide the meter backlighting with LEDs.
  [ Hits: 1184 | Votes: 2 | Rating: 5 ]

• The MonoGap Antenna for 30m Reviewed - A review of the 30 meter MonoGap Antenna. This review covers from the unboxing go the Gap product, the assembly of the elements, the test and tuning phase and a performance report during the years
  [ Hits: 241 | Votes: 1 | Rating: 10 ]

• A simple 50W RF Power Amplifier - A simple RF power amplifier initially designed for 40 meter band can work on 10 15 20 40 80 meters
  [ Hits: 1632 | Votes: 1 | Rating: 8 ]

• RF filter basics tutorial - an overview, introduction or tutorial about the basics of electronics filters including the types of filter and the various filter design considerations and parameters
  [ Hits: 312 | Votes: 0 | Rating: 0 ]

• Homebrew a High Performance SSB RTX for 14 MHz - This article describes the construction of a high performance transmitter and receiver for SSB (voice) communication covering the 14MHz (20 meters) high frequency amateur radio band with output range 15 to 20 watts and a top audio sound quality both on transmit and receive.
  [ Hits: 347 | Votes: 5 | Rating: 7.8 ]

• A simple QRP Power Meter Project - A really simple project to make a power meter measuring RF output powers from a few mW up to half a watt. A DIY amateur radio project for QRP enthusiasts
  [ Hits: 463 | Votes: 0 | Rating: 0 ]

• A Modern Directional Power/SWR Meter - Every ham needs an RF power meter. Here is a high performance unit to build at home.
  [ Hits: 1564 | Votes: 2 | Rating: 5.5 ]
• Digital SWR Meter with Arduino - Inline RF Power & VSWR Meter. A DIY meter 0 to 30 Watt with Average and Peak. Circuit Description, Arduino Nano software code and part list to DIY your own Digital SWR Meter
  [ Hits: 3358 | Votes: 17 | Rating: 5.93 ]

• Dip Meter - Grid Dip Oscillator GDO - All the essentials about the Dip Meter or Grid Dip Oscillator used for many RF measurements including detecting resonance, locating RF emissions, and making many RF measurements.
  [ Hits: 381 | Votes: 0 | Rating: 0 ]

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