BC-DX 841 04 Jan 2008 Private Verwendung der Meldun

The photographs of this site establish clearly that the partially
completed 8 mast array is one of the very standard Russian design. I have
made extensive impedance measurements (in the snow) and modeling of one of
these, and they are a really elegant design. The basic design is fully
described in the standard Russian textbook on MF antennas.
This one not only doesn't have the 8th mast and has some towers lacking
the skirts, it doesn't appear to have any of the open-wire feed system.
These can be constructed for unidirectional or bidirectional operation,
and can be constructed with about +/- 30 degrees of slewing, as was noted
in your item. They are usable anywhere in the MF band. As nearly as I can
tell no two are identical, but the masts all have a driven upper skirt and
a parasitic lower skirt, and are matched entirely with open-wire quasi-
coaxial short-circuited transmission line stub sections rather than
discrete component networks.
One row of towers is driven, the other is a parasitic "reflector." They
appear to have been used primarily for nighttime skywave operation, often
paired with a much simpler, usually omni, antenna for operation during
daylight hours. These, together with the 1.5 km and 2.5 km long "small
sunrise" and "large sunrise" traveling wave MF arrays, represent very
substantial capital investment, the likes of which we will probably never
see again. Nice thistles, too.
(Ben Dawson-WA-USA, dxld June 11, 2007)
CANADA 6160 CKZU Vancouver 1259-1315 Jun 27. Program notes to ToH, then
CBC News ("World Report") to 1312; M&W ancrs followed with chit-chat, area
wx, etc.; ID as "CBC Radio One, 690 on your AM dial". Signal fair/good.
(John Wilkins-CO-USA, DXplorer June 29)
CHINA 21900 Chinese Jammer, fundamental? 1415 UT.
(Tim Bucknall-UK, harmonics, also via dxld June 29)
No, surely 3 x 7300 vs SOH
(Glenn Hauser-USA, dxld)
An answer from Peking: Liebe Freunde freier Amateurfunkfrequenzen, die
beiliegende Fax-Nachricht habe ich soeben aus Peking (Beijing) vom Radio
Regulations Department erhalten. Ob sich was tut?
Dear friends, I have just received the attached email from Peking
(Beijing) Radio Regulations Department. Do you think the firedrake jamming
will stop soon?
Viele Gruesse / regards,
(Uli Bihlmayer DJ9KR, wwdxc BC-DX TopNews also via dxld June 24)
Viz.:
Dear Sir or Madam, The Administration of the People's Republic of China
acknowledges receipt of your letter. At present, it is under
investigation. Once the interference is identified, we will take measures
to eliminate it. If the similar issue occurs again, it will be appreciated
if you can file an interference complaint through German Telecoms.
Authority to this Administration, in accordance with 15.34 of the Radio
Regulations. Best wishes, yours faithfully, Xie Yuansheng, Deputy Director
General, Radio Regulatory Department, Ministry of Information Industry,
13, West Chang'an Avenue, Beijing, China 100804, June 18
(to DARC ham band watch, retyped by gh for dxld)
CROATIA Austrian domestic progr OE3 news to tourists via Croatian Radio
in summer touristic season. News in German of OE3 at 0800 UT.
Mir war zwar aus den vergangenen Jahren bekannt, dass im 2. kroatischen