taylorengineer said:Fidel did intensify jamming efforts during the 80's in response to America's Radio Marti. Quite a few Florda stations gor higher power at night to combat the new interference. The Soviets know how to make RF and were in complicity with the Cubans and their efforts.
There were no Russian transmitters in Cuba. All the higher power rigs were put in in the late 60's and were Czech. All that happened in the 80's is that some were moved to different frequencies, something the Cubans did with great frequency to block US broadcasts it was concerned about. In fact, the power increases granted to US stations was a delayed response to ingerference from the 60's. For example, 1040 in Tampa got an increase because Cuba left the high power rig on 1040 that it had put there to block VOA transmissions on WHO which the State Department rented to broadcast into Cuba in the 60's.
And 300 Kw does qualify as superpower
It is high power for the US, but not for most of the rest of the world, where superpower starts at 500 kw and goes up from there.
Also remember, the Cuban engineers are world renown for their use of bubble gum and duct tape to make radios play(and cars run.) A clever bunch they are....if they had the iron to play 300 kilowatts they could make it play 300 kilowatts!
Part of the problem is that the 300 kw transmitters used a Svetlana tube that is no longer made, and has no European equivalent. I was offered several of the 60's with very good terms in about 1967 by the Czech factory rep who visited me, in the company of a nasty looking guy who looked very Politburo to me. I looked at the unique tubes, only available from the Soviet block, and said "no thanks." I do not think they sold one transmitter on their sales trip from Chile to Central America.