l antennas
1384 links - and 47 categories
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Antennas : 17M- Half-Wave 17 Meter Rotatable dipole
- The K7EFX Multiband 3-Half-Wave 6-Meter, Half-Wave 17-Meter, Rotatable Antenna
[ Hits: 893 | Votes: 3 | Rating: 1.33 ]
- A Simple 40 Meter Vertical for Field Day
- A dipole antenna for 7 MHz support for this antenna is fiberglass military mast
[ Hits: 970 | Votes: 1 | Rating: 5 ]
- Broadband 80 meter dipole
- The AB2RA bowtie 80 meter antenna includes also a 40 meter dipole
[ Hits: 834 | Votes: 0 | Rating: 0 ]
- Building and Using an Experimental Beverage
- An interesting article about planning and testing beverage antennas for 80 and 160 meters in a rural location
[ Hits: 776 | Votes: 3 | Rating: 5.33 ]
- Why good Antennas need good Coax cable
- The importance of an efficient antenna feed line that can minimize the disturbing noise for an optimal signal reception
[ Hits: 458 | Votes: 1 | Rating: 10 ]
- Chocking the End-Fed Antenna
- Stop common-mode current when transmitting with an end-fed antenna. Unbalanced antennas are very prone to currents on the outside of the coax.
[ Hits: 812 | Votes: 1 | Rating: 8 ]
- Fixture for fast assembling VHF Antennas
- This fixture id intended for fast assembly and disassembly of VHF antennas, expecially usefull for experimenters
[ Hits: 598 | Votes: 0 | Rating: 0 ]
- 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 ]
- Short Vertical Antennas and Ground Systems
- Relevance of a proper ground systems on short HF vertical antennas, with an analysis on a vertical antenna for 160 meter band
[ Hits: 454 | Votes: 0 | Rating: 0 ]
- Radials on Vertical Antennas
updated
- Experimental Determination of Ground System Performance for HF Verticals
[ Hits: 1330 | Votes: 9 | Rating: 6.67 ]
- Simple Gain Antennas for the Beginner
- You do not need to invest an absurd amount of money to build a beam type of antenna. Good performance can be obtained with simple antennas made from some very ordinary materials. QST article
[ Hits: 1032 | Votes: 4 | Rating: 6.5 ]
- Comsystems Solutions
- HF Antennas is a division of Comsystems Solutions we manufacture wire broadband antennas and different type.
[ Hits: 176 | Votes: 1 | Rating: 4 ]
- Delta Electronics
- Delta Electronics, Inc. NY USA, family owned and operated selling all varieties of consumer electronics including 10 meter amateur radios, antennas, accessories, microphones, cw transmitters, coax cables and more
[ Hits: 309 | Votes: 0 | Rating: 0 ]
- Moontracker
- A moon tracking software capable to drive the rotation of your antennas in azimuth and elevation
[ Hits: 848 | Votes: 1 | Rating: 6 ]
- Polarization Rotator for EME
- 2m EME Polarization Rotator for Yagi antennas
[ Hits: 415 | Votes: 0 | Rating: 0 ]
- QRO Coaxial Relay for 50 MHz
- Build a SPDT coaxial relay that can be used as a main Transmit/Receive relay or an A-B switch to select between two different 6m antennas
[ Hits: 344 | Votes: 0 | Rating: 0 ]
- Noise Canceller Project
- This project was intended to accompany the stealth antenna project. Author want to see how effective a noise canceller could be in reducing the background noise floor when attic / stealth antennas are being used.
[ Hits: 680 | Votes: 0 | Rating: 0 ]
- RF Safety in Tower Climbing
- The risks for exposure to significant levels of RF radiation is high for tower climebers, the RF field levels near FM radio and television antennas are extremely high.
[ Hits: 187 | Votes: 0 | Rating: 0 ]
- Magnetic Loop RF Safety
- Notes on the intensity of RF Field calculated on magnetic loop antennas. The magnetic field intensity of a mag loop is considerably higher than the E field probably due to the inductive portion of the resonant circuit creating the radiation (magnetic) in the near field
[ Hits: 828 | Votes: 3 | Rating: 4 ]
- Analyzing 6 handheld antennas with a VNA
- In this article the author analyze six different type of VHF handheld antennas and as result of his self training on his new vector network analyzer published this interesting report
[ Hits: 396 | Votes: 1 | Rating: 1 ]
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