Category Archives: satellite

L Band Satellite Antennas Revealed

[SignalsEverywhere] has a lot of satellite antennas and he’s willing to show them off — inside and out — in his latest video that you can see below. Using software-defined radio techniques, you can use these antennas to pull off weather satellite images and other space signals.

A lot of …read more

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Posted in antenna, l-band, radio hacks, satcom, satellite, satellite antenna, wireless hacks | Leave a comment

How to Build a CubeSat

There was a time when building your own satellite and having it placed into orbit would have been a wild dream. Now it is extremely possible, but still not trivial. A CubeSat is a very small satellite that can hitch a ride with a bigger satellite or get tossed out …read more

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Full Earth Disc Images From GOES-17 Harvested By SDR

We’ve seen lots of hacks about capturing weather images from the satellites whizzing over our heads, but this nicely written how-to from [Eric Sorensen] takes a different approach. Rather than capturing images from polar satellites that pass overhead a few times a day, this article looks at capturing images from …read more

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Posted in radio hacks, satellite, sdr, weather satellite | Leave a comment

Solar Circuit Sculpture Pumms the Night Away

A word of warning: Google for the definition of the word “pummer” at your own risk. Rest assured that this beautiful solar-powered circuit sculpture fits the only definition of pummer that we care to deal with.

For the unfamiliar, a pummer is a device from the BEAM style of robotics, …read more

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Posted in 74hc240, art, beam, brass, Circuit Sculpture, photovoltaic, pummer, pv, satellite, solar cell, supercapacitor | Leave a comment

Es’hail-2: Hams Get Their First Geosynchronous Repeater

In the radio business, getting the high ground is key to covering as much territory from as few installations as possible. Anything that has a high profile, from a big municipal water tank to a roadside billboard to a remote hilltop, will likely be bristling with antennas, and different services …read more

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Posted in amateur radio, AMSAT, DATV, Engineering, geosynchronous, Hackaday Columns, ham, Hams in Space, OSCAR, Qatar, QO-100, repeater, satellite, space, transponder, wireless hacks | Leave a comment

Oops… Britain Launched A Satellite, But Who Remembers It?

Did you know Britain launched its first satellite after the program had already been given the axe? Me neither, until some stories of my dad’s involvement in aerospace efforts came out and I dug a little deeper into the story.

I grew up on a small farm with a workshop next to the house, that housed my dad’s blacksmith business. In front of the workshop was a yard with a greenhouse beyond it, along one edge of which there lay a long gas cylinder about a foot (300mm) in diameter. To us kids it looked like a torpedo, and I …read more

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Posted in Black Arrow, Hackaday Columns, history, Prospero, satellite, satellite launch, space | Leave a comment

GPS III Launching Today But You Can’t Use it Until 2022

Imagine if you bought a new car but they keys were not going to be shipped to you until a few years later. That’s analogous to the situation the U.S. Air Force finds itself in. The first GPS III satellite is finally ready to launch today, December 18, 2018 — a little over 2 years beyond the original schedule. However, most of the unique GPS III features won’t be available until at least 2022, according to a 2017 Government Accounting Office (GAO) report to Congress.

GPS III is a project to launch 32 new satellites that will — for military …read more

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Posted in Current Events, Featured, gps, gps iii, news, satellite, space | Leave a comment

Amazon Creates Distributed Satellite Ground Stations

Here’s an interesting thought: it’s possible to build a cubesat for perhaps ten thousand dollars, and hitch a ride on a launch for free thanks to a NASA outreach program. Tracking that satellite along its entire orbit would require dozens or hundreds of ground stations, all equipped with antennas and a connection to the Internet. Getting your data down from a cubesat actually costs more than building a satellite.

This is the observation someone at Amazon must have made. They’ve developed the AWS Ground Station, a system designed to downlink data from cubesats and other satellites across an entire orbit. …read more

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Posted in amazon, news, satellite, satellite tracking, SatNOGS | Leave a comment

Real Time Satellite Tracker Shows You What’s Going Over Your Head

Whilst modern technology relies heavily on satellites, it’s easy to forget they’re there; after all, it’s hard to comprehend mostly-invisible lumps of high-density tech whizzing around above you at ludicrous speeds. Of course, it’s not hard to comprehend if you’ve built a real-time satellite tracker which displays exactly what’s in orbit above your head at any given time. [Paul Klinger]’s creation shows the position of satellites passing through a cylinder of 200 km radius above the tracker.

Each layer of LEDs represents a specific band of altitude, whilst the colour of the LEDs and text on the screen represent the …read more

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Posted in Raspberry Pi, satellite, space, tracker | Leave a comment

Hams see Dark Side Of The Moon Without Pink Floyd

Ham radio operators bouncing signals off the moon have become old hat. But a ham radio transmitter on the Chinese Longjiang-2 satellite is orbiting the moon and has sent back pictures of the Earth and the dark side of the moon. The transceiver’s main purpose is to allow hams to downlink telemetry and relay messages via lunar orbit.

While the photo was received by the Dwingeloo radio telescope, reports are that other hams also picked up the signal. The entire affair has drawn in hams around the world. Some of the communications use a modulation scheme devised by [Joe Taylor, …read more

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Posted in china, ham radio, lunar, moon, news, OSCAR, radio hacks, satellite, space | Leave a comment