Dear Laurence,
Yes, I knew that the station at 135.43 kHz
sending info similar to DCF 38 is in Hungary. But I do not know its call sign.
At my location the measured signal from DCF38
(near Magdeburg) is 20 dB stronger that the one from the station near Budapest.
The distances of the stations from my location are about 598 resp. 1157 km.
The CCIR propagation graph for "Land"
(conductivity 0.03 S/m, diëlectric constant 40)
predict a difference of only 12 dB, assuming that
both stations have the same EMRP. But the
assumption that the ground constants of the two
paths are identical may be entirely wrong and the
radiated powers could be different as well.
The difference in distance of the two stations,
"seen" from Shanghai, is negligible, I think. So
the fact that you receive Budapest stronger than
Magdeburg could mean that Budapest has higher
power. But you must be receiving both stations
via sky wave and this involves so many
unpredictable factors that conclusions as to power are debatable.
73, Dick, PA0SE
At 14:11 15-5-2007, you wrote:
Dick that 135.4 (135.43) maybe Budapest power
control with the same signature as DCF39.
Its 10-15dB stronger here in Shanghai than DCF39/38..
LAurence
The station at 135.4 kHz is similar to DCF 38.
I have not recorded the FS of MSF at Rugby.
My location is at Leiderdorp, 52° 09' 37.21" N; 04° 31' 23.52" E.
73, Dick, PA0SE
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