| Author |
Message |
    
Niteowlb
| | Posted on Tuesday, February 11, 2003 - 12:21 pm: | 
|
Sometimes i hear a brief "chatter" on different frequencies, a friend told me it was called a woodpecker and another friend said it was radar, what is it really? BN |
BrownStone 262 NY
| | Posted on Tuesday, February 11, 2003 - 4:00 pm: |
|
If you are hearing OTHR (over thr horizon radar) aka "Russian Woodpecker" it would sound like an electronic woodpecker and cover several channels at once.You could be hearing someone using a digital mode like packet,RTTY,SSTV,PSK31 etc...If you can give a discription of the noise and frequency maybe someone hear can tell you what you are hearing. |
707
| | Posted on Tuesday, February 11, 2003 - 4:59 pm: |
|
you are probably hearing the ionosonde transmitters. Brief bursts of what sounds like a cross between a jackhammer and bad gas |
Buck
| | Posted on Tuesday, February 11, 2003 - 5:27 pm: |
|
Uhhh...707, what exactly is good gas???
Im just yanking your chain man. I get some interference on my radios at home. It sounds like the buzz that they use for testing the emergency brodcast system except that it is constant. I get it on the base and the mobile.It happens at different times throughout the day and it dosent have a set schedual. it only happens on chs.2,6,10,14,17,21,26,30,35,and 40...Am is usable when it happens but it completley wipes sideband out...expecially lsb. IT IS DRIVING ME CRAZY...ABSOLUTLY NUTS.. I have tried everything I know to do and cant find the problem. I havent really checked the freeband or 10 meter for it but I have got to believe it is there to. Any suggestions??
Thanks
Buck |
Bigbob
| | Posted on Tuesday, February 11, 2003 - 9:35 pm: |
|
I get this on 27.685 and on cb on ssb beep-beep-beep d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d,sometimes high speed sometimes slow,sometimes high pitched sometimes low or very low,sometimes lsb,sometimes usb and on different freqs.simultaneously,mostly during mexican skip,I think some dum*** developed a broad-band rf-jammer or multi-frequency transmitter to so called"break up skip" all he does is make people MADD. |
Spike
| | Posted on Wednesday, February 12, 2003 - 3:41 am: |
|
The static level on channel 26 has been higher than the other 39 here for twenty years. |
Highlander
| | Posted on Wednesday, February 12, 2003 - 7:49 am: |
|
Bigbob, that is an IONOSONDE. Propagation testing equipment, probably military (but who's?!) |
Kiwikid
| | Posted on Wednesday, February 12, 2003 - 12:55 pm: |
|
Hello Team,that noise,mother earths flatulance, is world wide as I hear it at my QTH down here in the South Pacific.Starts off as a burrrrrrr noise in high tone then drops to a barrrrrrr noise in a lower tone transmitting over a wide frequency area and multiple frequencies steps.Also it appears to shift frequency after a short period of time.Some form of military test/data to possibly find the ideal frequency to utilise for that time of the day under those band conditions???
73 all KIWI KID |
Kiwikid
| | Posted on Wednesday, February 12, 2003 - 1:03 pm: |
|
Hllo Team,I forgot,this site may explain things.
http://www.wdc.rl.ac.uk/ionosondes/ionosonde_basics.html
73 KIWI KID
|
707
| | Posted on Wednesday, February 12, 2003 - 11:02 pm: |
|
Bigbob and Kiwi....... that is definitely an ionosonde transmission you are hearing. Basically, they send out bursts of rf at specific frequencies, then measure the reflected signal in various locations to determine the MUF and band openings for the military and commercial HF operators. These stations are operated by various governments and commercial entities. Here is a world map showing the locations of ionosonde stations:
|
|
