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Antennas : 23cm- 43 Elements Yagi Antenna for 23cm band
- An interesting presetnation full of usefull tricks to correctly design and build 23 cm Yagi using simple tools. The basic design of the antenna presented in this document is taken from the original DL6WU Yagi Design published in 1982
[ Hits: 423 | Votes: 1 | Rating: 8 ]
- A 30 Meter Sloping Dipole Antenna
- This variation of the basic horizontal, half wavelength flat top dipole has proven to be a simple, effective antenna suitable for both home and portable use.
[ Hits: 452 | Votes: 0 | Rating: 0 ]
- Easy Sleeve Balun
- A simple and effective sleeve type balun is easily built. This Balun can be adapted to any band. While the dimensions are not critical ( +/- 10%), it is still basically a mono band device
[ Hits: 180 | Votes: 3 | Rating: 6 ]
- The half-wave dipole, your first antenna
- Construction tips of a basic wire antenna, the half wave dipole. Inverted V dipoles and effects of inverted v on radiation pattern.
[ Hits: 234 | Votes: 1 | Rating: 9 ]
- Dipole Antennas - Basics
- Antenna most often used by Hams around the world. Inexpensive, effective and easy to build, what more could anyone ask for in a home made antenna.
[ Hits: 160 | Votes: 0 | Rating: 0 ]
- J-pole antenna Calculator
- Online calculator for J-Pole antennas. The J-pole antenna consists of a short and a long vertical pole with a feed point near the bottom. The antenna looks like the letter J, hence the name J-pole antenna.
[ Hits: 416 | Votes: 0 | Rating: 0 ]
- The Lindenblad Antenna - Presentation
- This is a presentation used at OVARC on the LindenBlad antenna construction. The presentation cover several topics about this antenna, from the basic antenna design, to the guide on how to contruct a custom lindenblad antenna for the 2 meters band and and 70 centimenters band.
[ Hits: 639 | Votes: 0 | Rating: 0 ]
- The Yagi Antenna - Presentation
- A presentation of the Yagi Antennas, and other interesting tid-bits by Brian Mileshosky.
This document explains basic concepts of Yagi-Uda antenna theory, influence of reflector and directors on global antenna gain and directivity of radio waves. A simple tape measure antenna project is also included.
[ Hits: 535 | Votes: 2 | Rating: 7 ]
- Welcome to Amateur Radio for Newcomers
- A complete guide for newcomers edited by the Radio Amateur Society of Australia Inc.
This free PDF includes several basic articles for new hams, with particular reference to Australian regulations, but is however a good guide for those who are aproaching the hobby worldwide.
[ Hits: 422 | Votes: 0 | Rating: 0 ]
- Maidenhead square Calculator
- You can use this tool to calculate the maidenhead square by entering the longitude and latitude.
[ Hits: 146 | Votes: 1 | Rating: 8 ]
- D-STAR Info
- This site is dedicated to helping D-STAR users world wide. From basic information on what D-STAR is to detailed technical information, This site can hopefully solve any of your cravings
[ Hits: 135 | Votes: 0 | Rating: 0 ]
- Ham Radio: Using Repeaters
- The most basic form of repeater receives communication on one frequency and re-transmits at a different frequency. This is known as duplex communication.
Repeaters are generally set up to operate with FM modulation on the amateur bands within the VHF (30 MHZ – 300 MHZ) and UHF frequencies (300 MHZ – 3 GHz). These are generally the frequencies used by handheld and mobile devices.
[ Hits: 92 | Votes: 1 | Rating: 8 ]
- DVMEGA
- The Swiss army knife for Digital Voice, the DVMEGA radio is basically a complete D-Star and DMR compatible hotspot
[ Hits: 176 | Votes: 0 | Rating: 0 ]
- Yaesu FT-991 Memory Manager
- Free memory management software for the Yaesu FT-991 and FT-991A models. It runs only on Windows 7, 8, 8.1, 10 both 32 and 64 bits, it also permits basic remote control features and allow backup and restore settings and memories. Documentation in mainly in French.
[ Hits: 1396 | Votes: 7 | Rating: 6.61 ]
- Using the Baofeng UV-5R3
- Notes for new hams using the Baofeng UV-5R3, Basic Ham Procedures, open repeaters, Local Ham Nets.
[ Hits: 108 | Votes: 1 | Rating: 10 ]
- LogiSim - Logic Circuit Simulator
- Logisim is an educational tool for designing and simulating digital logic circuits. With its simple toolbar interface and simulation of circuits as you build them, it is simple enough to facilitate learning the most basic concepts related to logic circuits.
[ Hits: 125 | Votes: 0 | Rating: 0 ]
- WFView Open Source interface for Icom transceivers
- Wfview is a program that allows many modern Icom ham radio transceivers (such as the IC-7300, IC-9700, IC-7610, IC-R8600 and many others) to be controlled via a computer. wfview shows the gorgeous spectrum display on whatever display is connected, including projectors, touch screens, and TVs. wfview allows for full radio control from a computer keyboard and basic control from a numeric keypad. It works under Windows, Linux and MacOS
[ Hits: 360 | Votes: 2 | Rating: 10 ]
- Zeus Radio - Software Defined Radio
- Zeus Radio program is designed specifically
for the ZS-1 transceiver and supports all the
basic functions (RIT, XIT, SPLIT, Noise Reduction,
Auto Notch Filter, etc.) in order to work
in the broadcast brought only pleasure.
Zeus Radio works also with Hermes, Anan, Afedri, Red Pitaya, HiQSDR, Odyssey, Extio, RTL-SDR, Peaberry, Winradio, SDR-IQ, Afedri
[ Hits: 505 | Votes: 1 | Rating: 8 ]
- Basics of Anderson PowerPole Connectors
- How to build and secure Anderson Power Pole Connectors properly
[ Hits: 145 | Votes: 1 | Rating: 2 ]
- Experimental HF 6-band SSB transceiver
- An SSB radio for the HF bands will be presented. Featuring 12 to 20 Watts of output power (depending on DC supply), full DDS frequency generation, covering 6 major frequency bands (1.8, 3.5, 7, 14, 21 and 28 MHz) within the short wave amateur radio spectrum. The rig also features colored LCD and front panel backlight.
[ Hits: 709 | Votes: 14 | Rating: 9.86 ]
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