how to made antenna
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Antennas : 20M : 20 meter Dipole Antennas- Vertical Dipole Antenna for 14 MHz by G3PND
- An home made vertical dipole antenna made with simple material. The antenna has a total length of aproximately 16 feet. In this article appeared on June QST 2019, the author explain how he reached the optimal confirugation changing and adjusting the lower part of the antenna, trimming and spacing correctly the copper wire. PDF File to downloas
[ Hits: 1219 | Votes: 3 | Rating: 4 ]
- 432 Mhz 8 Element Quagi Antenna
- How to build a 432 Mhz Quagi, using a wood-made boom, and gives a 13 DBI Gain
[ Hits: 14163 | Votes: 43 | Rating: 7.84 ]
- 50:450 Ohm (9:1) Balun for vertical antennas
- A page describing how to home made a custom 9:1 balun for a common portable wire antenna. The author suggest to use 4C65 or FT140-61 toroids instead of the common Amidon T200-2
[ Hits: 516 | Votes: 11 | Rating: 6.72 ]
- Make your FM Dipole antenna
- There is a simple, homemade antenna that can pull-in your favorite station.
[ Hits: 3916 | Votes: 28 | Rating: 4.74 ]
- End-Fed antenna for 160-80-40 meters band
- This PDF File desscribes how to homemade a multi-band end-fed trapped wire antenna resonating on the low bands of 160 80 and 40 meters. Contains trap design instructions and some construction tips.
[ Hits: 6219 | Votes: 29 | Rating: 7.65 ]
- Fan Dipole Antenna for 40 20 and 6 meters
- A fand dipole antenna home made for the 7,14,50 MHz.
This article descbribes how to homebrew the antenna, hot to setup and some SWR measurements.
[ Hits: 326 | Votes: 0 | Rating: 0 ]
- How to make a HB9CV
- The HB9CV is a well known two element antenna of a directional beam type with a forward gain of 4 to 5 dBd. This one is for two metres but it can be scaled, from the dimensions in the diagram, for other bands I have also made them for four and six metres
[ Hits: 1466 | Votes: 9 | Rating: 4.45 ]
- A two dollar helical hf portable antenna
- Here is an easily transportable vertical antenna for 20 meters collapsible to 4 feet that costs about $2.00 to make.
This was created as a fun project to demonstrate how to enjoy operating HF in the field with a home-made portable antenna without spending a ton of money.
Bev AH6NF (YL) made this antenna, tuned and ready to operate in less than one hour
[ Hits: 22387 | Votes: 14 | Rating: 7.65 ]
- 6 m JPole Antenna
- Based on original G2BCX design this J-Pole antenna for the six meter band is made with a homemade ribbon cable. The antenna shown in this article includes a coaxial cable choke feed to remove RF currents from flowing on the outer of the cable.
[ Hits: 1766 | Votes: 6 | Rating: 6 ]
- The BikeLoop Antenna for VLF
- BIKELOOP is a VLF home made antenna. This antenna is a double magnetic loop composed by two orthogonal loops.
This document describe how the prototype was built, the purpose is to give some construction hints to people who wants to try this kind of antenna.
Mathematical and electrical details are described as well
[ Hits: 232 | Votes: 0 | Rating: 0 ]
- Home made High Power Magnetic Loop Antennas
- Magnetic Loop Antennas for The Radio Operator with Limited Space, a two part series of articles on how to construct a magnetic loop antenna, including directions on selecting high voltage tuning capacitor
[ Hits: 896 | Votes: 0 | Rating: 0 ]
- NOAA Satellite Reception with QFH Antenna
- How to receive NOAA weather satellite with a home made QFH Antenna. This project includes some easy and efficient notch filters to suppress noise from FM frequencies
[ Hits: 257 | Votes: 1 | Rating: 8 ]
- Homemade 137 MHz Weather Satellive V-dipole Antenna
- This is a short version, the final of the article describing how to build the Weather satellite 137 MHz horizontal V-dipole antenna.
[ Hits: 238 | Votes: 5 | Rating: 9.4 ]
- Crossed Field Antenna
- The Crossed Field Antenna (CFA) is one of the applications of Correction of Maxwell's Equations which was used over 150 years ago which was proved these days that the Magnetic Field Source is only the Displacement Current not the Conduction Current .
These Corrections was made by an Egyptian Doctor Engineer Fathi Kabbary , who reached the New Correct Theory which shows that the height and efficiency of the antenna doesn't depend on the wavelength
[ Hits: 2306 | Votes: 5 | Rating: 2.8 ]
- 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 ]
- An Automatic Antenna Tuner
- An homemade antenna tuner project that should be small, easy to build and cheap. This automatic antenna tuner can work as locale or as remote.
The tuner has EEPROM memory for store settings for faster tunning and four interfaces
[ Hits: 492 | Votes: 3 | Rating: 9 ]
- Do-It-Yourself Wireless Antennas
- Your guide to wireless antennas, how to build a wireless antenna without spending much money
The Pringles Cantenna, Coffee Can Antenna, Parabolic Reflector and Antenna Designs. Combine a homemade Tripod Mount with an inexpensive Pistol Grip and go Wardriving.
[ Hits: 10995 | Votes: 10 | Rating: 6.3 ]
- A Coax Switch
- An inexpensive coax switch. shows a proven inexpensive home-made antenna selection switch. If you question the use of a cheap slide switch and SO239 coax sockets, read on. Measurements in a physics lab showed there to be practically no reflection on HF and even on 70 cm the SWR was below 1.3 : 1
[ Hits: 9676 | Votes: 8 | Rating: 7.5 ]
- A Homebrew Antenna used for RFI Direction Finding
- How to homemade antenna to be used with a handheld on the aircraft band to locate noise sources
[ Hits: 484 | Votes: 3 | Rating: 7.67 ]
- Receiver Protection in SO2R and Beverage Antennas
- How to protect your receiver when operating in SO2R and using beverage antennas. A custom protection box made with two resistors and 2 stack of diodes.
[ Hits: 225 | Votes: 0 | Rating: 0 ]
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