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WJNT and Cuban interferance

R

richllewis

I wrote this post in DXld forum.:

CUBA-Logged Radio Rebelde at 0550-0605 UT on 1180 KHz. Cuban music with WJNT,
Jackson, Mississippi under Radio Rebelde. I can null out Radio Rebelde and
listen to WJNT without Radio Rebelde drowning out WJNT by turning the radio to
the West at my location in Forest, MS.

MISSISSIPPI-WJNT was playing Mannheim Steamroller's Rendition of Deck the Halls
as they were going into their hourly ID and News. Since WJNT is a local talk
station in this area it is a pleasure to hear at night since in the past R.
Rebelde drowned out the signal. They (WJNT) also rely on a low power fm repeater to
retransmit the signal at night in the Jackson, Mississippi Metro Area. The
signal was weak since they reduce power at night.

Richard Lewis
Forest, Mississippi
Grundig G4000A

The interference is still there, but the Cubans have reconfigured the stations that used to drown out WJNT to point that you could not hear it. The Cubans have reconfigured the stations to point in the direction of Radio Marti's transmitters in the Florida Keys. If you live East of Jackson, you might be able to hear WJNT at night on 1180 by pointing the radio to the West toward Jackson.

It is quite an improvement from several years ago when you could not hear them at all at noght.
 
It has been recently. Gleen Hauser had the details on the last World of Radio program on World Radio Network on Sirius and XM.
 
you asked what the Cubans are doing. Here is the story excized from DX Listening Guide on DXld. This may be repeated later on Glenn Hauser's World of Radio program on World Radio Network on Sirius and XM. This is a result of a DXer in the UK who was revising his database of stations.

Now it shows the newly
designated 200 kW transmitters at several Cuban locations as well as
approximately 50 others. To completely confuse DXers, Dentro-Cuban
authorities have planted Radio Rebelde on a large network of
transmitters throughout the island on 1180. This is designed to swamp
the Marathon Key signal carrying Radio Martí. The most powerful
transmitter in Cuba on 1180 comes from the town of Martí!
Click to expand...

This is the reason why you have heard a garbaled signal on 1180 Khz
 
richllewis said:
you asked what the Cubans are doing. Here is the story excized from DX Listening Guide on DXld. This may be repeated later on Glenn Hauser's World of Radio program on World Radio Network on Sirius and XM. This is a result of a DXer in the UK who was revising his database of stations.

Now it shows the newly
designated 200 kW transmitters at several Cuban locations as well as
approximately 50 others. To completely confuse DXers, Dentro-Cuban
authorities have planted Radio Rebelde on a large network of
transmitters throughout the island on 1180. This is designed to swamp
the Marathon Key signal carrying Radio Martí. The most powerful
transmitter in Cuba on 1180 comes from the town of Martí!
Click to expand...

This is the reason why you have heard a garbaled signal on 1180 Khz
Click to expand...


200,000 watts???
 
200kw is correct. That was verified years ago when WJNT applied for their nighttime FM booster. Probably a combination of hi power transmitters and directional antenna systems.

RFB
 
Last night at about 11pm out of curiosity I checked 1180 AM from my house in livingston la..expecting to hear a mega cuban station..instead i was hearing WJNT loud and clear with no interferance..wow..I was shocked.cant get in the outskirts of Jackson but I can hear in Louisiana..humm...reminds me of the old days of WHNY McComb. Couldnt hear it in McComb but it was clear in Little Rock..
 
I remember years ago listening to a Mississippi State football game on WJNT while visiting relatives in Warsaw, MO. I also picked up 13KXI and WOKJ 1550 the same night.
 
No wonder I was able to hear WJNT more clearly at night on AM! It's really odd how you can't hear an AM station in your own town, but can hear it much clearer somewhere else. I remember not being able to WGST Atlanta at night outside the perimeter (local jargon for I-285), but did hear it pretty clearly one night between Hattiesburg and the Gulf Coast.
 
rfburns said:
200kw is correct. That was verified years ago when WJNT applied for their nighttime FM booster. Probably a combination of hi power transmitters and directional antenna systems.
Click to expand...

The 1180 Cuban is neither directional nor does it use tandem transmitters. It used a Czech 300 kw rig for decades, and did not achieve full output after a few years and some aging. Its main purpose in life is to interfere with VOA / Martí Marathon, which has 100 kw in a tight, near 500 kw equivalent lobe aimed at Cuba.
 
richllewis said:
The interference is still there, but the Cubans have reconfigured the stations that used to drown out WJNT to point that you could not hear it. The Cubans have reconfigured the stations to point in the direction of Radio Marti's transmitters in the Florida Keys. If you live East of Jackson, you might be able to hear WJNT at night on 1180 by pointing the radio to the West toward Jackson.
Click to expand...

Cuba periodically moves transmitter frequencies, to some extent due to less than pristine conditions among the old Czech transmitters inaugurated in the missile crisis and cold war years. Since Radio Mambí (WAQI) Miami began broadcasting strongly anti-Castro programming for the exile community in South Florida there has been a never ending variety of 3, 4 and 5 different stations in Cuba on 710 to block the very strong 710 signal from being usable in much of Cuba. It did not matter than Mambí programmed for Miami, and not Cuba... the Cubans spared no expense to saturate 710 in Cuba to prevent any semblance of the truth from being heard... with the "truth" including this weeks deals at Gus Machado's car dealerships.

1180 has also had many different variants at keeping Martí out of Cuba, starting in the mid-80's with the 300 kw transmitter used previously to block other US or US backed operations. The current changes are likely a realignment of transmitters to use the same strategy as employed on 710... multiple signals across the 800 mile width of Cuba instead of just a single large transmitter.

In other words, there is nothing new about this.. just a reshuffling of the same deck of RF cards.
 
Although I have been gone for a while so I no longer know if it is the case, for years there was a spot in St. Louis suburb Maryland Heights where I could reliably listen to 1300 from Jackson every night, nice and clean. It was always amazing to me, because this wasn't just fluke conditions, but every night it was there with a listenable signal.
 
Check the archives...there was discussion about this here about three years ago...JBI
 
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