Noise captured at this moment, 0 on screen is 502KHz 73 Victor --Oorspronkelijk bericht-- Van: [email protected] [mailto:[email protected]]Namens Gary - G4WGT Verzon
John and co. I've just been talking to Roger GW3UEP in SW Wales and he is receiving the noise very well all day long. This corroborates the "good" reception by Terry who is about 30 miles North. How
Hi John - I'm seeing a 5dB increase in the "noise floor" between 498 and 502 kHz but only after dark (measurement taken at 2300 utc). Location is Watford (IO91TP). Receiver is Winrad Excalibur SDR. B
First I thought it was a lack of receiving conditions here. But the noise band also appeared on WebSDR Delft. Some Googling it appears this to be a NATO test transmission for Marine data. Doc found o
Hello John, LF! Thanks for interesting information below. I can see the wideband data noise on the SpectrumLab often. It is the reason, why I have to use a new favourite freq for transmitting, 502,30
And also, Alan, with tongue firmly in cheek. the almost "naturelle" antipathy that arises when the gallic and anglo-saxon races attempt to equably interface " sur le chanel anglais" "Vive la differen
Whoa hardly an intrusion we are not a primary user we have to take what interference they give. Some seem to forget this is not an amateur band it is commercial spectrum and we have an experimental p
As to what is experimental about a 4 Khz wide multi-psk signal in the year 2010 , im not sure my copy of MT63 by IZ8BLY is dated > 1999-2004 Nino Porcino < and still runs under win-xp-pro.... Last ni
"Mommy, I figured out the beeping sound that's coming from all of our radios! It's Morse Code! I Googled it, and after hearing the same things over and over again, I figured out what it's saying:" CQ
Hello the list, The International Maritime Organization (IMO) is primarily a trade group but does have standing on these issues. The IMO doesn't deploy anything itself, what it does do is lobby go
Hi Gary & LF Looks like it might get worse as you can see from the rather ominous quote from Jan's link ... Quote >> IMO supports the future use of band 415 kHz – 526.5 kHz for safety and secur
An amateur allocation on 455 kHz would be funny! ;-) 73, Stefan Am 02.11.2010 15:06, schrieb Warren Ziegler: Further to my previous post, The U.S. Government has taken a position in favor of an amate
Hello, I've had some correspondence with John G3WKL and Colin G3PSM about the new "commercial" wideband data noise that occupies 498-502kHz It seems to be a test of an impending data system for marin
Hello Dave, Someone who lives close to the Lessay site in France reported it also quite strong at daytime on the NDB-list. As France is mentioned as where this signal comes from, the Lessay site migh
Further to my previous post, The U.S. Government has taken a position in favor of an amateur allocation at 461-469 kHz and 471-478 kHz. -- 73 Warren K2ORS WD2XGJ WD2XS
Hello John, At the moment the band of noise is visible, but only 3 dB above the band noise. The strongest I have observed here is 10 dB. My guess is that it is not running high power yet. A listener
Hi John & LF, The screen shot attached shows an average strength of the 498 to 502kHz signal here in NW England (IO83QO). QSB has an effect on the signal which continues throughout the darkness perio