I`ll gladly leave discussion of the gear in Cuba to wb. I already said the 4765 spurs were *not* like the 13700 ones. Glenn
On Wednesday, February 10, 2021, 09:44:52 AM GMT+1, Wolfgang Bueschel <dg1sbn@t-online.de> wrote:
re 4765 kHz R Progreso from old USSR relay site
Bejucal (RadioCuba #2) of the 1965 years era,
each 50 kW;
and combined also to 2x times as 100 kW in total.
(11840 kHz R Moscow relay .... for example)
13 SW masts of 1965 Sowjetunion Leningrad firm design
at 22°51'55.24"N 82°20'11.10"W
instead
clean free WONDERFUL Latin AM music program Radio Rebelde
heard instead:
a thousand times 'I like it'
https://www.radiorebelde.cu/audios-bajo-demanda/radio_rebelde_en_vivo_frecuencia_am.html
Bauta {former Brown Boveri gear of 1962}
RadioCuba #1 site
is refurbished a decade ago and replaced
by latest BBEF Beijing Made in P.R. of China gear.
6 x 100 kW BBEF, 1 x 50 kW reserve unit.
Quivican San Felipe TITAN, RadioCuba #3 site.
Soviet antenna design - mid/end of 80year era,
16 x curtains,
2 x NVIS fountain non-directionals
5 x 250 kW is also different gear.
Maintained, and refurbished in 1999 ... 2001years,
by Radio Comunicaciones del MICOM (Ministerio de Comunicaciones),
(thanks Olle Alm-SWE)
MW origin TXs was NEC Made in Japan in 1970,
TESLA CSSR in 80ties,
Chinese from 2002y onwards,
and also some NAUTEL - Made in Canada - origin.
Glenn, you should include the technical infrastructure
used at RadioCuba centers in the discussions.
Your description of intermodulations on the SW bands
from low transmission strengths portion -
also FM-like scratching audio tones appearance,
you have to look at each transmission center separately,
not to mix Bejucal 4765 kHz
with 13700 kHz Bauta gear example intermodulations.
technical knowledge.
The equipment provided by RadioCuba is very different
in year of construction and design.
73 wb
----- Original Message -----
From: "Glenn Hauser via Hard-Core-DX"
Sent: Wednesday, February 10, 2021 5:58 AM
Subject: [HCDX] Glenn Hauser logs February 9-10, 2021
> CUBA. 4747 & 4782 approx., Feb 10 at 0259, extremely distorted
> S9+10 spurblobs out of S9+20/30 4765 Radio Progreso, matching
> plus/minus ~17.5 kHz. These are unlike the ones out of 13700 RHC; no
> F# tone, totally unreadable in SSB or FM, but music recognizable in AM
> mode // 4765. Something`s always wrong at RadioCuba. I`ve heard these
> spurs occasionally before. Could this be why R. Huanta 2000, Peru,
> jumped from 4747 to 4764, in retaliation? BTW, WRTH 2021 page 315 says
> its new frequency be 4755; not (Glenn Hauser, OK, WOR)
> This report dispatched at 0458 UT February 10
_
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