tuners

tuners

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• Double Guanella Balun - Hi-res pictures of a double 4:1 guanella balun by PA1HR
  [ Hits: 910 | Votes: 4 | Rating: 6.25 ]

• Fan Dipole - The Fan dipole antenna offer a easy to setup and efficient HF multiband antenna that does not require tuners or antenna switches, diagram by YC8PVU.
  [ Hits: 2746 | Votes: 6 | Rating: 5.83 ]

• Notes on Portable HF Antennas - Notes on an optimum Portable HF Antenna, a comparison of MFJ927 and SGC239 autotuners, and a 31 ft. vs 43 ft. vertical by VE1ZAC
  [ Hits: 452 | Votes: 1 | Rating: 10 ]
• Antennas for portable operations - Article describing various type of portable antennas, from verticals, to dipoles, vertical dipoles, random wire with tuners, and end-fed antennas
  [ Hits: 500 | Votes: 0 | Rating: 0 ]

• Popular Matching Networks - What happens in impedance space when the various popular matching networks (antenna tuners) are adjusted
  [ Hits: 275 | Votes: 0 | Rating: 0 ]

• Z-Match Tuner Explained - Most people are not familiar with antenna tuners and what a antenna tuner actually does.
  [ Hits: 1000 | Votes: 2 | Rating: 4 ]
• Antenna Tuner Basics - In search of the perfect antenna - An article that explain with simple concepts and basic theory the correct usage of antenna tuners. It covers some aspects of common questions newcomers have on what antenna tuners are for, and what antenna tuners will never do.
  [ Hits: 476 | Votes: 0 | Rating: 0 ]
• ICOM Tuner Connector - Many Icom radios e.g.7100 have a connector for automatic tuners such as the Icom AH4. The cable supplied by Icom is of a fixed length 10m and is not shielded. Icom recommends to use shielded cable for any length greater than 10m.
  [ Hits: 232 | Votes: 1 | Rating: 10 ]
• How does an antenna tuner work ? - Collection of several topics on antenna tuners and their performance. Why use an antenna tuner? How does an antenna tuner…tune Does an antenna tuner fool the radio? Will an antenna tuner waste power? Can an antenna tuner help get more power to the antenna?
  [ Hits: 185 | Votes: 0 | Rating: 0 ]

• The UnTenna - Multiband random wire unun (unbalanced to unbalanced) for use with rigs with builtin autotuners.
  [ Hits: 237 | Votes: 0 | Rating: 0 ]

• HA8DU Antenna Tuners - HA8DU European manufacturer of quality amateur radio antenna tuners for HF Bands, from 10 meter to 160 meters band. Products includes manual and automatic antenna tuners, power handling till 3.5 KW. HA8DU produce even custom made variable capacitors and rotary switches.
  [ Hits: 399 | Votes: 4 | Rating: 7.5 ]

• Breadboard Radio - Maker of QRP Kits, QRP CW receiver and transmitters, audio CW Filters, antenna tuners, dummy loads, and morse code practice oscillator
  [ Hits: 1313 | Votes: 1 | Rating: 10 ]

• Antennas for QRP Operation - Antennas for low-power operation resemble those for 100W use. Minor adjustments, like capacitor voltage ratings, may apply, but basic principles persist. Portable antennas, notably Backpack Antennas for weight-conscious setups, hold relevance beyond QRP. While some antennas function acceptably at higher power, efficiency issues arise at QRP levels. Testing antennas at 100W exposes weaknesses, particularly in tuners, crucial for efficient QRP operation.
  [ Hits: 88 | Votes: 0 | Rating: 0 ]

• QRP Ham Radio Kits - QRPhamradiokits is an online shop for custom amateur radio kits including QRP transceiver kits, tuners, cw keyers, VFO DDS, part and components
  [ Hits: 175 | Votes: 1 | Rating: 8 ]

• SWR and Amateur Radio Antenna Tuners - Undestanding and measuring SWR, Standing Wave Ratio in antenna feed lines. This article also introduce basic concepts and usage guidelines of amateur radio antenna tuners
  [ Hits: 219 | Votes: 2 | Rating: 9.5 ]

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