Hard-Core-DX.com: CRI Back on 13630 kHz

CRI Back on 13630 kHz

Tuesday, March 12 2019



re:

the contract between our station and Mali had expired, (...)


The new Bamako site was erected in new China antenna design in
2003-late2004/spring 2005 year,
til came into service in July 2005 and was reported in DXpress then.
I've some CRI Bamako entries in my archive then.
And also visible first in G.E. images of this 2004/2005 year.

So seemingly there was a 15 years contract,
came into effect between August 2003 and last til 2018,
when CRI forced to stopp their Africa/NE broadcast service there,
... and DXers told that the world last year.



cloned SW and MW units worldwide (...),

At this era 2003 - 2005 the Beijing transmitter firm
Beijing BBEF Science & Technology Co., Ltd
erected a lot of 50 kW units,
the website also presents the 50 kW variant TBH 422,

100 kW (in Albania renamed to 'SW100F'),

150 kW type manufacture called TBH 522
(in Albania renamed to 'SW100A'),

cloned SW and MW units worldwide,

by Beijing BBEF Electronics Group Co. Ltd.,
like totally new Bauta-CUB site refurbished by 6 x 100 kW
and erected a total new antenna field there,

Cerrik-Albania refurbished in TX and antennas,
have got 6 x 150 kW, and an antenna combined switch net
to put 2 TXs together at 300kW of power.
Cerrik have got some additional SW curtain arrays in latest 2003-2004year
Made in China design, (like seen on RTC Nanning ceChina site too).

Cerrik / Shijak Albania from archive in 2004/2005:
{reality is not simple, Cerrik broadcast center - refurbished 6 x BBEF
Beijing transmitter - Beijing BBEF Science & Technology Co., Ltd. formerly
known as the Beijing Broadcast Equipment Factory -, using big budget in
2004 year - uses same TX equipment, but 2x150 kW units combined to 300 kW,
at 8 row curtain arrays. But RT Shijak uses a single 100 kW at easy dipol
curtains, wb.}

And R Tirana Shijak site have got 2 x 100 kW SW txs too as a gift.

...on the inauguration of the Chinese made SW tx at Shijak Albania
on 28 Nov 2004.

{and Tirana TXs were defunct, due of incompetence by the
Albanian technicians and dull main power delivery
some 10 years later in 2016 ... or so...}


from the archive of 2012 ref Hargeysa
[8 BBEF technician erected in Dec 2012]:

Sale of the new Radio Hargeisa transmitter was negotiated by a Chinese
export firm, PDF Co. Ltd, of Guangong, China, and it is responsible for
the installation. Some have supposed it would be, like other SW
installations in Africa, a Chinese-made transmitter manufactured by
Beijing BBEF Electronics Group Co. Ltd. (prior to 2000year,
known as the Beijing Broadcast Equipment Factory)

This may well be so, although the BBEF website lists its overseas projects
in places like Ethiopia, Cuba, North Korea 12 TXs?, etc., and says nothing
about supplying transmitter equipment for installation in Somaliland. I have
merely suggested it MIGHT instead, be a Croatian-made RIZ transmitter, since
there is a track record of another Chinese electronics broker in Hong Kong
installing a RIZ SW transmitter for the government of Myanmar.

In November 2004 Swedish DXer Olle Alm wrote me on this matter:


Most likely the basic PSM - Pulse Step Modulation patents elapsed some
years ago, so now everybody is using this technology. The Chinese
transmitters (SW100F and SW150A) at Shijak and Cerrik, respectively, which
are based on the Continental 420C model (500 kW), are using PSM, and RIZ
have been marketing PSM transmitters since at least 1999.

Chinese txs are also erected at Dole Zanzibar island Tanzania.

from archive March 2010, re Myanmar new equipment:


has meanwhile found this page on the website of Hong Kong-based Broadcast
Technology Limited, referring to a project installing a mediumwave antenna
and AM transmitter for Myanmar National Radio (MRTV) with BBEF (Beijing
Broadcast Equipment Factory). It says the transmitter is 400 kW, and the
project was completed in March 2010.

China TX clones, also on mediumwave, 600 kW Harris


University dissertation dated Dec 2010 about the modulation system of a
new ZF-600A transmitter, which is a Chinese-built clone of Harris
technology. The acknowledgements and English abstract link it to Station
602 at Ji'an

73 wb


----- Original Message -----
From: "Mauno_Ritola" <Mauno.Ritola@gmail.com>


Sent: Monday, March 11, 2019 9:13 PM
Subject: Re: [WOR] [HCDX] CRI Back on 13630 kHz


In April 2018, when the last transmissions from Bamako ended "Ying Lian"
replied:
"the Bamako relay station had suspended to work because the contract
between our station and Mali had expired, it will take some times to
renew the contract."

But there was also definitely need for maintenance, because just a
couple of transmissions were on the air for at least two years before
that.

Mauno

----- Original Message -----
From: "Jari Savolainen" <jari.savolainen@pp8.inet.fi>


Sent: Monday, March 11, 2019 7:53 PM
Subject: Re: [HCDX] CRI Back on 13630 kHz

Kai wrote:
"Seemingly" of course means that this is a description of presumed
arrangements. I have never seen any details about the Chinese engagement in
Mali.

The question about the site is in fact a very interesting one. First there
is the shortwave-only station at Kati: https://binged.it/2u2i3v5
Then there is the MW/FM/TV station between Bamako and Kati which has also
shortwave antennas, essentially the same set of bearings than at Kati:
https://binged.it/2u23rLW
These antennas are of a design that appears to be connected with a use of
US-made transmitters. And now take a look at this:
https://www.swcountry.be/mli.html

Anything else remains plain speculation (including the question whether the
alleged three transmitters from 1996 have now been refurbished or perhaps
completely replaced; all the previous equipment appears to have been
decommissioned already years ago, leaving only 2 x CRI plus 9635/5995 ORTM),
but at least it is obvious that the history of the Bamako shortwave
operations is a bit more complicated and interesting.

By the way, any memories how the Radio Beijing relays sounded when they
begun in 1987? Was it the same 200...3400 Hz crap with lots of nonlinear
distortion as still heard via Switzerland, Russia and France during the
nineties?

Kai

--------
Here's an old (2009) news item about 3 SW transmitters installed by China.
Header says 150 kW but text says 2x100 kW for CRI and 1x50 kW for Radio
Mali. But who knows. I get an impression these are near Bamako (some 10 km)
on the Kati Road. Nearby there is also radio center called Point G - I guess
for TV etc. operation. The text says the two shortwave transmitters are
leased to China for 10 years (2007-2017).
http://malijet.com/a_la_une_du_mali/14052-installation_de_trois_metteurs_ondes_courtes_de_150_kw_le_mali_e.html
73, Jari


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