use of amateur radio
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Antennas : Portable- An automatically tuned 7 to 30 MHz mobile antenna
- For every radio amateur who loves to travel by car, a mobile installation soon becomes a necessity.
While in inhabited areas there is usually some coverage of VHF repeaters, in many other places VHF radios are useless. In these very places, HF can provide reliable contacts, and a lot of fun, from anywhere.
[ Hits: 258 | Votes: 1 | Rating: 10 ]
- North Wales Amateur Radio Group
- North Wales Amateur Radio Group (NWARG) was formed in December of 2019 by a group of radio amateurs that yearned for a local club that encouraged it’s membership to use all modes of amateur radio, to experiment with radio, to learn about radio and above all to be friendly and supportive of all of it’s members.
[ Hits: 142 | Votes: 4 | Rating: 9 ]
- Amateur Radio - State of the Hobby - Survery
- Annual poll for radio amateurs - the good, the bad, the ugly! This is an annual survey conducted among the online community, and it represents the status of amateur radio. The authors ask to hams several questions, from the most used operating modes, to the typical ham radio lifestyle habits.
[ Hits: 261 | Votes: 3 | Rating: 5.67 ]
- 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: 385 | Votes: 2 | Rating: 4.5 ]
- Sommer Antennas
- Sommer Antennas has been a manufacturer and producer of quality amateur radio antennas and antennas for professional use for more than 20 years.Developed by DJ2UT in Germany, our beams were first introduced to the U.S. market at the 1984 Dayton Hamvention
[ Hits: 250 | Votes: 0 | Rating: 0 ]
- Operating AMTOR
- Putting one of those old modems back into use.AMTOR is an acronym for AMateur Teleprinting Over Radio and was mostly used on HF. The mode is based on the marine SITOR code that was introduced to amateur radio by Peter, G3PLX. The mode is an enhancement of RTTY with active error correction that copes reasonably well with interference and fading.
[ Hits: 81 | 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 ]
- EURAO Radio Amateur Insurance
- The purpose of this insurance is to guarantee the pecuniary consequences of the civil liability incumbent on the insured due to consequential bodily, material and immaterial damage caused to third parties as a result of their radio amateur activities
[ Hits: 133 | Votes: 0 | Rating: 0 ]
- remoteAudio - audio streaming application
- remoteAudio is an multi platform Audio streaming application for Amateur Radio purposes.
The most typical use case for this software is the remote operation of an amateur radio station.
remoteAudio supports multiple users and multiple audio sources. At any time multiple clients can listen simultaneously on the same radio, although remoteAudio only allows one user to transmit.
[ Hits: 528 | Votes: 2 | Rating: 5.5 ]
- County-Hunting Mapper
- A unique, easy-to-use Amateur Radio program for creating County, State, Section and Grid Locator outline maps of North America that can be filled by Hand, from a Contest Logger UDP Feed, or from Imported ADIF or Cabrillo Logs.
[ Hits: 126 | Votes: 0 | Rating: 0 ]
- AirHamLog - Online Amateur Radio Logbook
- AirHamLog is a modern logging software for amateur ham radio operators.
The software works inside your browser, making it possible for you to use with any device connected to the internet.
AirHamLog currently supports Windows, MacOS, Linux, iOS, and Android that works with modern browsers. AirHamLog has ability to export QSL cards as PDF files.
All of your log data is stored on the cloud. You can start using AirHamLog for free today
[ Hits: 543 | Votes: 1 | Rating: 10 ]
- Mini Satellite-Antenna Rotator Mk1
- This project is a portable device used to automatically point a directional antenna towards an orbiting satellite. It takes all the effort out of little kids holding the antenna and figuring out where to point it. It allows students to talk through Amateur Radio satellites or download weather satellite images.
[ Hits: 549 | Votes: 0 | Rating: 0 ]
- Batteries for portable use
- Batteries for portable radio operation are always an interesting subject for discussion. Review of some LiPo (Lithium-ion polymer ) batteries for amateur radio use.
[ Hits: 248 | Votes: 0 | Rating: 0 ]
- Headsets Reviews and Observations
- A selection of speakers or headphones for use with amateur radio equipment. Includes an interesting paragraph comparing Dynamic and Electret Condenser Microphones, but also about audio Equalization.
[ Hits: 522 | Votes: 0 | Rating: 0 ]
- Gimme Five - QRP SSB Transceiver
- Gimme Five reloaded, a compact 5 band QRP SSB transceiver in SMD technology. This unit covers 5 bands within the amateur radio spectrum (3.5, 7, 14, 21 and 28 MHz). Receiver is a single conversion unit with an interfrequency of 9 MHz. Transmitter uses 5 stages and has got a power level of 10 watts PEP output.
[ Hits: 284 | Votes: 1 | Rating: 10 ]
- Guide to decode SSTV with RaspberryPi and RTL-SDR
- A tutorial on how to setup a receiver capable to decode SSTV signals with a small RaspberryPi version 2 and a RTL-SDR dongle. The author explains how to install the needed software to interface the RTL-SDR and a step by step guide to install the QSSTV software used to decode the signals.
[ Hits: 329 | Votes: 1 | Rating: 1 ]
- Setting up Raspberry Pi for Ham Radio
- An interesting guide to installing software on a Raspberry for amateur radio use.
This documentation cover the Raspberry Pi 4 version that whose hadware is powerfull enought to fullfill all requiriements for ham radio programs.
[ Hits: 396 | Votes: 3 | Rating: 9.33 ]
- Hermes-Lite Low Cost HF SDR
- The Hermes-Lite is a low-cost direct down/up conversion software defined amateur radio HF transceiver based on a broadband modem chip and the Hermes SDR project. It is entirely open source and open hardware, including the tools used for design and fabrication files. Over 300 Hermes-Lite 2.0 units have been successfully built.
[ Hits: 518 | Votes: 0 | Rating: 0 ]
- Soundcard Interfacing
- The sudden explosion of new digital modes has taken the Amateur Radio world by storm. New modes such as PSK31 FT8 JT65 FSK441, ISCAT as well as established modes such as RTTY, SSTV, Hellschreiber and others have rocketed in popularity.
In order to use these modes all that is required is a simple computer-to-radio interface which couples the computer soundcard to the radio
[ Hits: 189 | Votes: 0 | Rating: 0 ]
- Tektronix Compatible Tracking Generator
- A spectrum analyzer is always an usefull amateur radio test equipment that should be present in a radio shack. Hams can use it for testing frequency response of filters, amplifiers, and other two-port RF devices. This article illustrate a tracking generator compatible with any spectrum analyzer in the Tektronix 490- and 2750-series lineups
[ Hits: 188 | Votes: 0 | Rating: 0 ]
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