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Antennas : Antenna Calculators- Online Yagi Antenna Calculator
- HF Beam Calculator for Amateur Radio and CB Communications
[ Hits: 559 | Votes: 16 | Rating: 5.5 ]
- Slim Jim Antenna Calculator by M0NWK
- Easy to use online Slim Jim antenna calculator. Input your frequency to automatically calculate the lengths of the different antenna parts.
[ Hits: 189 | Votes: 4 | Rating: 8.5 ]
- Short Multiband Dipole Array
- A multiband shortened fan dipole. This page offers and online calculator that can be really useful if you plan to homebrew a multiband dipole for low HF bands and you don't have all needed space for the full lenght. It combines multiband dipole with loading coild for selected bands.
[ Hits: 229 | Votes: 0 | Rating: 0 ]
- JD1BMH online log
- JD1BMH online log search. Logs of all tour can be searched.
[ Hits: 158 | Votes: 2 | Rating: 8 ]
- Bridgerland Amateur Radio Club
- We are a group of amateur radio operators located in Northern Utah who enjoy exploring many aspects of the hobby from HF to VHF and beyond. We are active in many public service events, Field Day, APRS, packet, Winlink, contesting and more
[ Hits: 82 | Votes: 3 | Rating: 10 ]
- WebSDR Roma2 Online Radio
- Online websdr receiver based in Rome Italy provides a nice user web interface and receiver most of the amateur radio HF bands
[ Hits: 390 | Votes: 2 | Rating: 4.5 ]
- Interactive Grid Square Map
- An online interactive grid square map made with openstreet map. Just point and click and zoom in to determine an accurate grid square locator till 10 digit resolution
[ Hits: 567 | Votes: 6 | Rating: 6.67 ]
- HF communication prediction tools
- Online HF Communication prediction system provided by the Australian Governament Buerau of Metereology allow to predict usable frequency rage for radiocommunications between two stations allowing to specify frequency and date range. This tool allow calculation with different methods and algorithms
[ Hits: 169 | Votes: 0 | Rating: 0 ]
- Hy-Gain TH3jr Beam Manual online
- Hy-Gain TH3jr Tri-band HF 3 Element Beam Covers 10, 15 and 20 Meters assembly instruction manual
[ Hits: 180 | Votes: 2 | Rating: 5 ]
- Aerial-Parts of Colchester
- Online antenna parts store, providing many accessories for amateur radio antenna homebrewing. Boom joiners, aluminium parts, elements clamps, filters, ferrites, fasteners, plasti caps, dipole elements. Based in UL
[ Hits: 153 | 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 ]
- Amidon ferrite toroids calculator
- Select the toroid by material type and dimension of the toroid, the desired inductance and you will get the numbers of turns
[ Hits: 392 | Votes: 3 | Rating: 6 ]
- DesignSpark - RS Online
- DesignSpark PCB is a free PCB design tool, by rs online, designed to help the user to convert their design into PCB faster with unique design options. DesignSpark is a powerful software engine that enables you to capture schematics and design PCB boards and layouts.
[ Hits: 71 | Votes: 0 | Rating: 0 ]
- Morse Code Trainer Online
- An online morse code trainer application that allows to select the digits and play them at the wpm speed you desire. While decoding will evaluate the results and will indicate your proficiency level
[ Hits: 233 | Votes: 0 | Rating: 0 ]
- Simple Online QSL Generator
- A funny online application that lets you build your own QSL cards based on templates. You can choose background text aligment and text to be printed on your card.
[ Hits: 573 | Votes: 4 | Rating: 5.75 ]
- Online dBm to watts conversion
- dBm to watts conversion calculator and explaination on how to convert dBm to watts, including dBm to watts conversion table
[ Hits: 131 | Votes: 4 | Rating: 4.5 ]
- mW to dBm Calculator
- Online calculator that will convert power entered in milliwatts to dBm. Includes a quick mW to dBm conversion table
[ Hits: 82 | Votes: 0 | Rating: 0 ]
- RF Impedance Matching Calculator
- Calculates the network to match a line to a specific complex load. This online tool calculates the matching network necessary to terminate a line of the specified characteristic impedence Zo in a specific complex load impedence RL + jXL at a specified frequency.
[ Hits: 194 | Votes: 1 | Rating: 10 ]
- Online Toroid Multi Calculator
- This website provide online calculator for several values about a large variety of toroids. Freq/L/C/Z/Turns Calculator, Impedance Matching Network Calculator
[ Hits: 212 | Votes: 3 | Rating: 5 ]
- Everything You Need To Know About Coaxial Cable
- An technical page on coaxial cables that describes what coax cables are, how do coax cables works, what are RG cables and difference with several coax cable types, what they are used for, connector types and cable sizes
[ Hits: 158 | Votes: 0 | Rating: 0 ]
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