EFJohnson Technologies

400 Series See All Scramblers

	SC20-400 Basic Security The SC20-400 utilizes a simple inversion method of scrambling that is indecipherable by most casual listeners. The recovered voice quality is very clear and natural sounding. The SC20-400 operates continuously and is easily incorporated into radio systems that are susceptible to signal interruptions. This scrambler has potential application in voting or trunking systems or in situations where your channel is likely to be switched, handed-off or stepped on.
	Product Sheet

Highlights

• Compatibility: Offers the ability to install high quality voice security into hundreds of makes and models of two-way radios.
• For Trunked or Conventional Systems: Can effectively be used with repeaters and control equipment, trunked or conventional.
• Continuous Operation: Allows modules to continue to operate even if the radio signal is interrupted. Recovers almost immediately after the signal is restored.
• Voice Quality: Provides clear, natural sounding speech and excellent voice recognition while radio is operating in the secure mode.
• Over-The-Air Reprogramming (OTAR): Allows security codes to be changed by remote commands while radios remain in the field and operational.
• Radio Disable Function: Provides the ability to disable radios that have been lost or stolen. Disabled radio is unable to receive or transmit messages, eliminating any advantage an undesired listener would gain from stealing a radio.

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