casval.blogg.se - Waves track space

It can act as an AX.25 APRS Packet Repeater, voice repeater or transmit Slow Scan Television (SSTV) pictures. Much of the time the Space Station equipment operates in “automatic mode”.

R4UAB WebSDR when ISS is over Russia /Ĭheck the N2YO site to see when the ISS is in range.

Farnham WebSDR when ISS is in range of London.

Select a Frequency of 145800.0 kHz and Mode FM: If you don’t have an amateur radio receiver you can still listen to the ISS by using an Online Radio, also known as a WebSDR.

Hand-held rigs all seem to have a single wide filter fitted as standard. Most rigs can be switched been wide and narrow deviation filters so select the wider deviation. In the UK we use narrow 2.5 kHz deviation FM but the ISS transmits using the wider 5 kHz deviation used in much of the world. You can receive the ISS outdoors using a 144 MHz hand-held with its helical antenna but a 1/4 wave whip will give far better results. Large 144 MHz colinears are not as good because the radiation pattern is concentrated at the horizon while the ISS is above 15 degrees elevation for most of a pass. A ¼ wave ground plane has a high angle of radiation and works well. As far as the antenna is concerned the simpler the better. Almost any 144 MHz FM rig will receive the ISS, you can even use a general coverage VHF scanner with an external antenna.