I listen to Five Live, 909 Am, on a little personnal radio. The last two weeks I have been hearing what sounds very much like morse code in the background. Starts around 9PM.

Anyone else hearing it?

Not that it bothers me, but may be I should learn it to find out what's being said!

Ham radio is not in these frequencies is it?

Woodseats BTW.

Could be mobile phone interference :confused:

Or some sort of weird alien communication, saying we've only got 3 more seconds to li....

Nah, its not the dip, de dip de dip!

Like the aliens theory! I do the Seti at home thing and not discovered anything yet though. Along with everyone else in the world who runs it ;)

If it sounds like morse code it could be.... morse code. Or more likely, a RTTY transmission or packet radio (computer generated morse code used for data transfer)

Joe the Radio Ham should be able to clue you in, in full

IIRC 909kHz is well within the Ham Radio Spectrum. Been a while since I did any DXing though.

Hams use radio at night to extend the range of their transmissions and reception, and end up sending each other postcards a lot.

Originally posted by Phanerothyme
If it sounds like morse code it could be.... morse code. Or more likely, a RTTY transmission or packet radio (computer generated morse code used for data transfer)



Computer generated mosre code?! Tell me more!

Sounds like it's keyed, not rapid data transfer.

Originally posted by GabbleRatcht
Computer generated mosre code?! Tell me more!

Sounds like it's keyed, not rapid data transfer.

I would, if I knew what I was talking about.

If it sounds keyed and sounds like morse , then it probably is.

RTTY and packet radio don't use morse. they use (according to wikipedia, which I should have checked first) Baudot code and Frequency Shift Keying.

JOEP CQ CQ CQ

It could be a satellite, or the space station, i know the space station has been over us for the last couple of weeks ;)

I usually tune into the right low band frequencies and listen to the satelites, call me a nerd, i dont care, its cool..

It could be a sinister numbers station

http://www.spynumbers.com/

except with morse

K.

At this time of year transmissions on AM and MW are noisier because of the changes in the atmosphere I think. The disadvantage is you get interference from unknown sources like you describe. But the advantage is that you can hear stuff from other countries if you are lucky.

Originally posted by Ghozer
It could be a satellite, or the space station, i know the space station has been over us for the last couple of weeks ;)

I usually tune into the right low band frequencies and listen to the satelites, call me a nerd, i dont care, its cool..

2 or 3 times a morning, although you'd have to be an early bird to catch it.

Do they use morse? or something similar?

Originally posted by Phanerothyme
2 or 3 times a morning, although you'd have to be an early bird to catch it.

Do they use morse? or something similar?

Geez, is there anything techie you're not into? :P

Originally posted by SHsheff
Geez, is there anything techie you're not into? :P
I'm into non-techie things too!

I signed up for the NASA J-Pass mailing list. Emails you with details of all the ISS passes over your latitude, and even highlights the visible ones for you.

If you've not seen it - it's quite a sight - although the cloud for the next few days is going to obscure it completely.

Due to changes in the ionosphere at night, lower frequencies from the radio spectrum, particularly the Medium and High Frequency bands (which includes medium wave) become susceptible to interference from distant transmissions, usually in the form of morse code although other interference is not uncommon. Morse transmissions will travel further than voice or RTTY (teletype) transmissions especially at night irrespective of transmitter power output.

Wikepedia - Ionosphere (http://en.wikipedia.org/wiki/Ionosphere)

Originally posted by GabbleRatcht
Like the aliens theory! I do the Seti at home thing and not discovered anything yet though. Along with everyone else in the world who runs it ;)

space is nice but there are problems closer to home. http://www.mp3unsigned.com/showmp3.asp?mp3ID=9562&aid=2675
:thumbsup: