£499.00 (excluding VAT)

ADB-820-CM Crypto Level III Digital Modules – 56 bit Key

Available on back-order


 Motorola Encryption Module

ADB-820-CM Crypto Level III Digital Modules – 56 bit Key

Digital Module for Motorola Professional Series mobiles (CM). Plug-in installation. MK4823 shield kit required for all mobile installs. Z03-FLEX required for all portable installs without keypad/display. Included options: Analog Scrambling, DSS/OTAR

Additional information

Weight 0.5 kg
Dimensions 13 × 9 × 4 cm

ADB-820-CM Technical

The ADB-820-GM/CM digital encryption module for two-way radios provides a very high level of voice security (Class III), employing a proprietary AES encryption algorithm with the powerful combination of 72 quadrillion digital keys to prevent breeches of communication by the most determined adversaries. ADB-820-CM series utilizes a digital communication channel in a radio system that can consist of both portable and mobile radios to provide a cost-effective voice privacy solution for commercial entities, police departments, public safety, drug enforcement, governments and militaries to prevent eavesdropping on critical communications by unwanted listeners, drug smugglers, rogue terrorists, criminals or enemies.

When the radio user is operating in secure mode, the eavesdropper will not hear any vocalization; instead they will hear only “white noise” when speech is being transmitted. By using a digital communication channel in an analog radio communication system, voice quality is not compromised, providing for clear speech when the radio is used in secure mode. The module features background noise rejection which enhances the clarity and coherence of the message between the sender and the intended listener.

The ADB-820-CM voice security module installs easily into the CM range (EMEA) of Motorola Mobile radios.

It provides a very high level of voice security in radio systems utilizing conventional analog repeaters in the 12.5/25 kHz radio spectrum. The ADB-820-CM works in Simulcast, LTR, and voting systems as well as dispatch systems that feature Check, PTT-ID, OTAR, and GPS location information. The ADB-820-CM digital encryption module is easily programmed via a personal computer (PC). It offers a programmable “autodetect” option, enabling automatic receive operation while the radio is in secure mode. Other options include compatibility with any frequency inverters using analog keys and compatibility with double-inversion voice band scramblers using analog keys. The ADB-820-CM is available with powerful, advanced digital encryption up to AES256 for the utmost protection against adversaries who threaten the safety and security of life and property.

Additionally, these modules have a very unique feature that would allow with our technical guidance the end user to apply their own algorithm. Enabling this product to be customer specific.

Versions of the radios
For correct operation of APJ1 Media services modules in the Motorola CM analogue series radios.

We strongly recommend using the latest firmware version for all radios to prevent compatibility issues.

Motorola Regional Compatibility
European Equipment: CM140, CM160, CM360

For example: Africa, Asia Pacific, North America, Latin America and Caribbean – Please contact us or view our Motorola cross-reference GP-GM and CP-CM Radios

Programming modules ADB-820-CM
Programming of the ADB-820-CM module is carried out with our dedicated software using:
Module external of of the radio – via ADP-9-USB, 4-pin programming probe.
While fitted inside the radio (Operational) – via the radios standard programming cable.

Installation of modules ADB-820-CM – PlugIn module
For installation ADB-820-CM Modules into mobile units with or without keypad/display our optional flex cable is also required to enable installation see Our Motorola Installation Kits.

See additional information here

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