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Wikipedia describes Amateur Radio Satellites as: An amateur radio satellite is an artificial satellite built and used by amateur radio operators. It forms part of the Amateur-satellite service. These satellites use amateur radio frequency allocations to facilitate communication between amateur radio stations. While this is correct for many satellites there are many other Amateur radio operations that may be enjoyed. Ever wanted to talk to the ISS? Curious to see if you can talk outside the US on VHF or UHF? Want to copy Weather system images? All these things and more are easily done with as little equipment as your Handheld and your Cell phone. There are dozens of Amateur satellites in space and various categories. There are two basic types of satellites: FM satellites and linear transponders. The FM satellites are basically cross-band repeaters. You might, for example, transmit on a frequency, called the uplink, in the 2 m band and receive on a frequency, called the downlink, in the 70 cm band. These satellites are said to be operating in mode U/V. The Space Station is now equipped with a mode V/U repeater. It has an uplink frequency of 145.990 MHz, and its downlink frequency is 437.800 MHz. It requires a CTCSS tone of 67.0 Hz. for voice operations. There are also Telemetry satellites, these require a dashboard to record the information about the sat. To know the health of a satellite it is importent to receive the telemetry the satellite transmits. Telemetry is the only way to know if everything is operating in the right way and working as expected, so on the satellite systems collect data and transmit them to groundstations for further analysis.
Wikipedia describes Amateur Radio Satellites as: An amateur radio satellite is an artificial satellite built and used by amateur radio operators. It forms part of the Amateur-satellite service. These satellites use amateur radio frequency allocations to facilitate communication between amateur radio stations. While this is correct for many satellites there are many other Amateur radio operations that may be enjoyed. Ever wanted to talk to the ISS? Curious to see if you can talk outside the US on VHF or UHF? Want to copy Weather system images? All these things and more are easily done with as little equipment as your Handheld and your Cell phone. There are dozens of Amateur satellites in space and various categories. There are two basic types of satellites: FM satellites and linear transponders. The FM satellites are basically cross-band repeaters. You might, for example, transmit on a frequency, called the uplink, in the 2 m band and receive on a frequency, called the downlink, in the 70 cm band. These satellites are said to be operating in mode U/V. The Space Station is now equipped with a mode V/U repeater. It has an uplink frequency of 145.990 MHz, and its downlink frequency is 437.800 MHz. It requires a CTCSS tone of 67.0 Hz. for voice operations. There are also Telemetry satellites, these require a dashboard to record the information about the sat. To know the health of a satellite it is importent to receive the telemetry the satellite transmits. Telemetry is the only way to know if everything is operating in the right way and working as expected, so on the satellite systems collect data and transmit them to groundstations for further analysis.
WHERE IS IT?
WHERE IS IT?
When is the Satellite going to be within range? You need to know when, where, direction, and how long is the pass. This section will provide links to software and webpages for doing just that.
When is the Satellite going to be within range? You need to know when, where, direction, and how long is the pass. This section will provide links to software and webpages for doing just that.
The Radio Amateur Satellite Corporation, or AMSAT, is a worldwide group of Amateur Radio Operators (Hams). It was formed in the District of Columbia in 1969 as an educational organization.
SATELLITE TRACKING an on line webpage that provides a window to select, track, and map upcoming sat. Simply put in your coordinates or allow the page to geolocate you and you have a tracking system at the ready.
N2YO.com is dedicated to real time satellite tracking, satellite sighting predictions, and more...
Watch the International Space Station pass overhead from several thousand worldwide locations. It is the third brightest object in the sky and easy to spot if you know when to look up.
ISS Detector is the easiest way to spot the station. Find out when and where to look. If you want to see more, you can expand the app to see comets, planets and many other satellites.
How is the Satellite doing, track the telemetry.
How is the Satellite doing, track the telemetry.
To know the health of a satellite it is necessary to receive the telemetry the satellite transmits. Telemetry is the only way to know if everything is operating correctly and working as designed, so satellite systems collect data and transmit them to groundstations for further analysis.
To know the health of a satellite it is necessary to receive the telemetry the satellite transmits. Telemetry is the only way to know if everything is operating correctly and working as designed, so satellite systems collect data and transmit them to groundstations for further analysis.
FUNcube Payload Telemetry Dashboards for JY1Sat and ESEO will join FUNcube-1 (AO-73) and Nayif-1 (EO-88). JY1Sat and ESEO will join FUNcube-1 (AO-73) and Nayif-1 (EO-88). Each satellite has a dedicated dashboard and we have created a one page summary (FUNcube Dashboard Summary v1) of those dashboards, their current version number and a dedicated download link.
FUNcube Payload Telemetry Dashboards for JY1Sat and ESEO will join FUNcube-1 (AO-73) and Nayif-1 (EO-88). JY1Sat and ESEO will join FUNcube-1 (AO-73) and Nayif-1 (EO-88). Each satellite has a dedicated dashboard and we have created a one page summary (FUNcube Dashboard Summary v1) of those dashboards, their current version number and a dedicated download link.
APRS and PACKET operation
APRS and PACKET operation
UISS for Windows: what does it do
This program has been designed for easy packet radio communication (by HAM radio operators) with ISS (International Space Station), PCSat or 'compatible' satellites...and specially for any type of UI packet communication (unproto). You can digi the sats like NO44, ISS... with UI-frames (unproto) headers or complete with TX-data (text), APRS location and/or APRS messages, bulletins, news, mail etc...
Of course you can use the program for basic normal packet or for easy monitoring of any packet radio traffic, connecting to your local node or bbs etc.
IMAGES FROM SPACE
IMAGES FROM SPACE
Slow-scan television (SSTV) is a picture transmission method, used mainly by amateur radio operators, to transmit and receive static pictures via radio in monochrome or color.
A literal term for SSTV is narrowband television. Analog broadcast television requires at least 6 MHz wide channels, because it transmits 25 or 30 picture frames per second (see ITU analog broadcast standards), but SSTV usually only takes up to a maximum of 3 kHz of bandwidth. It is a much slower method of still picture transmission, usually taking from about eight seconds to a couple of minutes, depending on the mode used, to transmit one image frame.
Since SSTV systems operate on voice frequencies, amateurs use it on shortwave (also known as HF by amateur radio operators), VHF and UHF radio.
MMSSTV is a popular piece of software used for the sending and receiving of SSTV. For a simple receive setup all you need to do is connect the headphone out of your radio to the input (mic or line) of your PC.
Under the pseudonym YONIQ, a new version of the popular MMSSTV software for communication via slow TV sweep or SSTV was born. The idea is to provide the popular software with certain functionalities, to a greater or lesser extent, demanded by many of its users over time. (MMSSTV -; YONIQ)
Slow Scan Television (SSTV) images transmitted from the International Space Station and other ARISS supported satellites
This site will be the focal point for some of the best SSTV images received during Oct 2008 and beyond. Images will be downlinked by ISS on 145.800 MHz. To view some of the received images transmitted from the ISS check out the following Gallery Website . You may also submit images at that website as well.
In addition to SSTV image receptions, reports of planned amateur radio activity using SSTV will be provided.
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