Dave wrote:
Example.

A few months ago a group of ham radio operators went into the central
Pacific Ocean to an island named Swain's Island [ATOLL].

It was just last month, Dave.

Swain's Island
had just been approved by the Ham radio Certificate Powers {American
Radio relay League] as a separate DX [distance] entity and as such it
qualifies as an entry into the various DX awards [DXCC being the prime
award}. [DXCC means you have submitted written proof of confirmed
contacts with other ham radio operators in 100 or more other countries
[or entities].

The "Ham radio Certificate Powers"?

The Hams operated from this rare location for about a week and then
returned home. There is no-one there today!

Really? The people who live there just up and left?

Let me digress into another of your questions: i.e. What is SSB?

Fifty years ago ham radio, and still today the AM broadcast band,
transmitted three components to put a signal on the air. First, was the
carrier that set the dial frequency e.g. 3950 KHz. The carrier contains
NO information, it just sets the dial frequency.

The carrier is just there for setting a dial frequency? How about if
one just transmitted ONE component, the carrier and then turned it on
and off and regular intervals. It might be possible to use the on/off
pulses to convey information, huh?

In the 50s and early 60s design techniques were incorporated to suppress
the carrier, which contained NO information; and to eliminate one of the
redundant sidebands. The resulting signal is Single Sideband [one audio
channel] with suppressed carrier. [SSB = Single Side Band]

Those "design techniques" were used as early as about 1927.

Where is all this going?

Dave K8MN