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Colby could only watch in horror as Ivy’s helicopter pitched and rolled its way out of the sky.
“Colby!” The pilot was shouting at him. “Colby!”
“What?” He’d sat close beside the crew chief. That placed him near the cockpit.
“Major Hanson said to tell you ‘carrier wave.’ That mean anything to you?”
Carrier wave? For a moment it didn’t, then he remembered a discussion they’d had with one of the WHMO’s radio communication specialists. In an instant, he knew she’d used the radio.
No, they—the bad guys—had been using the radio.
And a carrier wave meant that the attacker wasn’t using some empty frequency, as their new protocols had peeled most of those away. Nor were they using a high blast of power to override the jamming on any one frequency. Instead, the attackers were using the pr
