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Windows, Android, iOS, macOS, Ubuntu, Raspbian HAMRS is a simple amateur radio contact logger, with templates tailored to portable activities like Parks on the Air, Field Day, etc. MacLoggerDX
One of the tones is a synchronization tone, leaving 43 tones to carry data (one tone per character in the character set, which includes alphanumerics and some punctuation). The symbol rate is 21.53 baud; the actual data rate as encoded for transmit is 14.4 characters per second. The mode is known for sounding "a bit like piccolo music". [7]
The first transmission carries compound callsign and power level, or standard callsign, 4 digit locator, and power level; the second transmission carries a hashed callsign, 6 digit locator, and power level. Add-on prefixes can be up to three alphanumeric characters; add-on suffixes can be a single letter or one or two digits.
EchoLink is a computer-based amateur radio system distributed free of charge that allows radio amateurs to communicate with other amateur radio operators using Voice over IP (VoIP) technology on the Internet for at least part of the path between them. It was designed by Jonathan Taylor, a radio amateur with call sign K1RFD. [1]
The presence of the high-altitude balloon comes approximately one year after a high-altitude balloon originating from China drifted over the US, causing national attention and political tension.
This article contains a list with gratis (but not necessarily open source) satellite navigation (or "GPS") software for a range of devices (PC, laptop, tablet PC, mobile phone, handheld PC (Pocket PC, Palm)).
The balloon’s intrusion into North American airspace was likely one of several from similar aircrafts in recent years, including three sightings during President Donald Trump’s administration ...
In addition, all such data are typically ingested into the APRS Internet System (APRS-IS) via an Internet-connected receiver (IGate) and distributed globally for ubiquitous and immediate access. [2] Data shared via radio or Internet are collected by all users and can be combined with external map data to build a shared live view.