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Homebrew is an amateur radio slang term for home-built, noncommercial radio equipment. [1] Design and construction of equipment from first principles is valued by amateur radio hobbyists, known as "hams", for educational value, and to allow experimentation and development of techniques or levels of performance not readily available as commercial products.
software-defined radio and signal processing SDRangel: GPL: Windows, macOS, Linux: software-defined radio SDR# Freeware Windows software-defined radio receiver SDR++: GPL: Windows, macOS, Linux, Android: software-defined radio receiver WSJT: GPL: Windows, Unix, Unix-like: weak signal communication, modem for FT-8, FT-4, JT-65, and WSPR WSJT-Z ...
Enthusiasts operate QRP radios on the HF bands in portable modes, usually carrying the radios in backpacks, with whip antennas. Some QRPers prefer to construct their equipment from kits, published plans, [15] or homebrew it from scratch. Many popular designs are based on the NE612 mixer IC, i.e. the K1, K2, ATS series and the Softrock SDR.
The software code is now open source and is developed by a small team. The program is designed for sending and receiving low-power transmissions to test propagation paths on the MF and HF bands. WSPR implements a protocol designed for probing potential propagation paths with low-power transmissions.
The transceiver can transmit and receive on the HF 10-, 15-, 20-, 40-, 80- and 160-meter bands, [33] and can receive WWV and WWVH on 15 MHz. It can use SSB , FSK and CW on all bands. [ 33 ] The TS-820S' power consumption is 57 watts (with heaters on) when receiving and 292 watts when transmitting.
FLEX-6700: HF-2m all mode including digital voice transceiver (8 receivers). Power is selectable from 1 W to 100 W. Open API including D-STAR access. D-STAR source available online; FLEX-6500: HF-4m all mode including digital voice transceiver (4 receivers). Power is selectable from 1 W to 100 W. Open API including D-STAR access.
An example of an amateur radio station with four transceivers, amplifiers, and a computer for logging and for digital modes. On the wall are examples of various amateur radio awards, certificates, and reception report cards (QSL cards) from foreign amateur stations.
N8VEM was a homebrew computing project. It featured a variety of free and open hardware and software. N8VEM builders made their own homebrew computer systems for themselves and shared their experiences with other homebrew computer hobbyists.