I've heard quite a few people having SSB conversations in the 68xx kHz area. Mostly in Spanish. As W8DSU points out.. They're almost certainly using the frequency illegally.
Wish I would have paid more attention in Spanish class. I'm sure that there are some "gems" in the transmissions if you knew what they were saying.
As I alluded to, several years ago, when there was several months of transmissions from Cuba, and from maritime mobile. A fellow I know who spoke Spanish said that some transmissions were coordinating trips from Cuba to the U.S. and talked with code words. And apparently the maritime transmissions were coordinating with someone on U.S. soil to meet them at some predetermined location. The transmissions from Cuba parallels reports of the military confiscating transmitters, (or destroying the station), pulling down the antennas, and arresting the operators.
What I found interesting about the whole episode was the Cuban people's steady persistence in passing traffic and coordinating where stations would be. It all had to have been coordinated well prior to the event just to make sure everyone knew what frequency to be on, and when. One transmission gave coordinates, (assuming this was where the dropoff point was), of Texas State Highway 87, about 20 miles ENE of Texas City, TX.
