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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: GNU GPLv3: Windows: Weak signal communication, Fork of WSJT. Splash Screen says, "Your favorite hostile fork of WSJT" WSPR: GPL
A Shaw Direct 45x60cm dish, with new triple satellite LNB compatible with Anik F1, Anik F2 and Anik G1. The system requires an elliptical antenna of at least 45x60cm in size with a special LNB pair built as one unit to accommodate the narrow 3.8° spacing between satellites; the receiver uses the Motorola-proprietary Digicipher II system which has so far been virtually free of the problems ...
This means that each receiver needs a separate feed and twin-tuner receivers (such as Sky+ and Freesat+) need two separate feeds. For small numbers of receivers a multi-output LNB is used and all the feeds are taken straight from the LNB but there is a limit to the number of outputs that can reasonably be placed on a LNB.
The current Outernet/Othernet system which is a series of hardware testing versions currently codenamed Dreamcatcher of the eventual final Lantern is using the K u-band with a LNB which interfaces with and is decoded by a LoRa circuit on the ARM architecture based receiver board which downloads to update the onboard stored content and resources ...
SiRFstarIII GSC3f SiRFstarIII chip based 20-channel GPS receiver with WAAS/EGNOS support. SiRFstarIII is a range of high sensitivity GPS microcontroller chips manufactured by SiRF Technology. GPS microcontroller chips interpret signals from GPS satellites and determine the position of the GPS receiver. It was announced in 2004.
PrimeStar was an American direct broadcast satellite broadcasting company formed in November 1990 by seven cable television companies including Comcast Corp. and TCI Communications Corp. [1] PrimeStar was the first medium-powered DBS system in the United States but slowly declined in popularity with the arrival of DirecTV in 1994 and Dish Network in 1996.
The receiver has estimates of the current time within 20 seconds, the current position within 100 kilometers, its velocity within 25 m/s, and it has valid almanac data. It must acquire each satellite signal and obtain that satellite's detailed orbital information, called ephemeris data.
WIC Western International Communications Ltd. [a] (or WIC) was a Canadian media company that operated from 1982 to 2000, with operations including broadcast and specialty television, radio, and satellite distribution via a majority interest in Canadian Satellite Communications (or Cancom).