HiWe have set up an on-line meteor scatter receiver system.Whenever a meteoroid enters the atmosphere it creates an ionized trailwhich reflects the signal of a distant TV/radio transmitter, and a short'ping' can be heard.Our system works at a frequency of about 49 MHz. The transmitter is a remote TV-station.
Sometimes there is strong interference in the audio signal. If that happens, try to listen at some later time. If everything is OK, there should be some background hiss and occasional 'pings', some of which can be strong and longlasting.
You can listen to the audio athttp://stream.ham.fiand from there selecting Meteor_Scatteror going directly tohttp://stream.ham.fi:8000/Meteor_Scatter.m3u
best regards, Kimmo Lehtinen
Finland
Kimmo - Sounds like an interesting site to listen to. With all the tropospheric ducting of radio waves and the usual sporadic-E conditions of the summer months, I'm sure the receiver will be hammered occasionally with distant stations, with some being baby monitors or radio controlled toys or even one of those old cordless phones? But that depends exactly what frequency you are listening to.
I tried both links but the pc returns to this site.
What I do is listen to an empty spot on the FM broadcast band during major meteor showers and usually hear some very distant stations for a second or longer. If the "returns' are strong and often enough, I go to my 6 or 2 meter ham radio and make some meteor scatter contacts - a nice way to combine astronomy and ham radio into one activity!
Are the "pings" added as an indication of a received signal?
In closing, to the forums. There are some hams on the forum and perhaps we will hear from them about your post.
Clear, dark skies, Mr Q
Hi
Our meteor scatter audio stream has been down since last sunday. There are probably some network problems. I hope we will be back on the air soon.
The 'ping' is the scattered signal itself. The receiver has been tuned so that the frequency of the 'ping' is about 900 Hz. If you put the audio signal into soundcard and use some spectral analysis program you will see a peak at around 900 Hz whenever there is a scattered signal.
cheers, kimmo
mr Q I tried both links but the pc returns to this site. Are the "pings" added as an indication of a received signal?
Hi folks
The meteor scatter receiver is online again. The internet-provider had some problems and it took a long time to fix them.
I also modified the links in my original message so now you can use those links to go directly to the audio stream.
Remember to listen to the Perseid meteor shower in August !
Best regards, Kimmo