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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 ...
2/1 Using HDSDR software Relies on a computing asset with sound device to process I and Q input and output Yes, HDSDR, PowerSDR Yes, Quisk, Linrad, GNU Radio Yes, various software Hunter SDR [61] Kit 2.5 – 30 MHz (1 – 30 MHz typ.) ext External ADC required (I/Q output) ? USB Yes No No Icom IC-7610 [62] Pre-built RX: 0.030 - 60 MHz.
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.
It features backlit keys, a built-in TNC for receiving DX Packet Cluster information, and the Sky Command II+ system (found on the K-Model), which allows for remote control of the transceiver using Kenwood's TH-D7A handheld or TM-D700A mobile radio.
[citation needed] Software running on the computer drives the terminal node controller. [citation needed] The most commonly used amateur program for this purpose is Airmail. [citation needed] PACTOR is used by Amateur Bulletin board system operators to exchange public messages, and open conversations across the world.
The protocol has been integrated into several hardware and software projects. [citation needed] In 2021, Kaczmarski received the ARRL Technical Innovation Award for developing an open-source digital radio communication protocol, leading to further advancements in amateur radio. [9]
If the APRS packet is received by an "i-gate" station, position reports and other messages can be routed to an internet server, and made accessible on a public web page. This allows amateur radio operators to track the locations of vehicles, hikers, high-altitude balloons, etc., along with telemetry and other messages around the world.
The Yaesu VX series is a line of two sequences of compact amateur radio handheld transceivers produced by Yaesu.There is a line of ultra-compact lower-power dual-band (2 m and 70 cm) transceivers that started with the VX-1R and was later updated with the VX-2R and VX-3R.