BC-DX 841 04 Jan 2008 Private Verwendung der Meldun

through a warehouse roof. Other than that, there is just a bundle of steel
and ceramic in the parking lot with some damage to the enclosure wall and
fence.
I won't go into details on the single point failure at this time, other
than to say that the tower crew did NOT cause this accident. The third
level guys were slacked at the time of the failure.
I'll be posting pictures on my website this evening.
Dino, K6RIX, dino (at) k6rix.com
ADDED EYEWITNESS INFORMATION
The injured worker was atop the elevated guy anchor using a come-along to
take up the slack of the north/east, third level guy. There were two
workers at this location. The other two anchors are not elevated and were
manned by two workers each.
The three teams were working in unison and in radio contact with each
other using come-alongs to slowly and evenly bring up the third level
guys. The guys had just cleared the second level guys and [were] still
slacked when the elevated anchor system failed. The injured worker jumped
or fell to the ground and hurt his back. He was up and walking around but
was taken to the hospital to get checked out.
There was minor damage to a couple of truck trailers and part of the gin
pole sheared and went through the roof into the warehouse. The rest of the
damage was to the enclosure block wall and a fence. The major damage was
to the tower only.
Dino, K6RIX,
(Robert F. Gonsett, W6VR, via Mike Terry, dxld Mar 19)
ZIMBABWE 3396 ZBC, Guineafowl, 2245-2309, 17 Mar, Vernacular, AfR.
pops; 34332, and better at 2300 though still under adjt. uty. QRM.
4828 VoZimbabwe, Guineafowl, 2309-..., 17 Mar, open carrier, no audio;
34333, CODAR QRM.
(Carlos Goncalves-POR, wwdxc BC-DX TopNews Mar 18)
#*#*#**#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#
Groundwave propagation on mediumwave: This statement
"At 0.5 MHz over average ground, the ground wave predominates over the sky
wave from the transmitter site out to distances of about 150 km, where the
two signals are equal. The signals add as vectors, and destructive and
constructive interference can occur. At distances beyond 150 km the sky
wave is the predominant signal. At a signal frequency of 1.5 MHz, the
distance where the two signals are equal reduces to 45 km, because of the
increased loss at the higher frequency."