"Hank and I will bring the blueprints over right away, if you don't mind
being late to dinner," Tom said.
Ned Newton agreed willingly, only too happy to help cope with the quake
menace. By eight o'clock that evening, work on the project was
proceeding at great speed. The Swift Construction Company continued
humming with activity around the clock.
The week end was almost over by the time Mr. Swift arrived back from the
space station. Tom flew to Fearing Island to meet him. On the short hop
back to Enterprises, they discussed the radio problem.
"I think the solution's been staring us in the face, Dad, but we've been
too worried to think of it," Tom said. "Remember Li Ching's jamming-wave
generator?"
He was referring to a device used recently by an Oriental foe of Tom and
his father. Mr. Swift's eyes lighted up with a quick flash of
understanding.
"Dad, you wrote a report on the generator for the government with a memo
on possible ways to combat it," Tom went on. "Maybe the same measures
would work in this case."
The Swifts had discovered that their enemy had been intercepting Tom's
messages, thereby learning the frequency to which the Swifts' receiver
was tuned. They then radiated a signal at this frequency, modulated at
the frequency to which the local oscillator was set. This had caused a
buildup of energy in the I.F. transformers, resulting in their
explosion.
Now Mr.
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