Topband: Chinese radar
danilo.brelih at siol.net
Sat Dec 17 08:23:29 EST 2005
Trevor Smithers wrote:
>Is there a link anywhere to an mp3/wav file of this radar qrm
>I've never heard it
Find dragon's mp3 file on JA7AO home page fellow link as bellow.
CUL Dan, S50U
The situation of noise from mid-September reported by Watt, JA0DAI below
has not been changed yet. We have it everyday and have difficulty of QSO
not only with DX but also JA, ourselves.
The signal is 15dB over S9 with 500Hz CW filter on my FT-1000 when I use
a beverage for Europe in 330 degree. The center of the frequency seems
to be around 1820KHz but this mysterious signal is not so much different
between center and edge. 1665KHz to 1970KHz (300KHz width !) is strong
noise but after it becomes clear all of a sudden as well as almost no
spratter. Also I do not hear the second harmonic in here. The appearance
time shifts day by day but it comes within 3 hours after the sunset and
stays all night long.
According to the BBS about 160m in Japan, the derections from each area
presumed by null of small roop are;
JA1 : 290 degree
JA2 : 300 degree
JA7 : 270 degree
JA9 : 280 degree
We can conjecture the approximate emission area.
Click below URL, My (our) old 160m friend Tok, JA7AO has mp3 file of the
See you on 160m if the band is clear. 73, Aki JA5DQH / KH7A
S50CLX - Cerkno LinuX - Palk DXCluster
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