Description
ASSB-256-CM custom built HF/SSB Encrypted Speaker-Microphone (For LMR, Marine, Goverment and Military applications).
256 bit, 16 keys (manual select).
ASSB-256-CM Crypto Level III Digital Modules – 256 bit Key
The ASSB-256-CM is designed for simple installation on any HF mobile and portable radios with access to external microphone and speaker.
ASSB-256-CM Technical
The ASSB-256-CM Real Digital Voice Universal Remote Speaker Microphone (We simply call the Black Mic)
Secure voice communications are critical to protecting private information and confidential conversations from casual eavesdroppers, the public, business competitors, criminals, terrorists and enemies.
Add-on voice security units can be used to keep confidential information away from unwanted listeners to protect businesses, property and personnel. Perhaps their greatest value is in protecting lives – those of soldiers, police, public safety, government workers, employees and our citizens who count on us to protect them.
APJ1 Media Services Ltd real-life digital encryption speaker-mic the ASSB-256-CM BlackMic includes all elements of typical digital encryption system: a digital speech coder (vocoder) which transforms the speech into a digital bit stream, a digital encryption and decryption block to encode and decode the bit stream, and a modem to transmit and receive the encrypted digital information.
The ASSB-256-CM Black Mic applies a complex adaptive mechanism, so it is especially perfect on HF channels where signal propagation is determined by the fact that it’s repeatedly reflected from the ionosphere and the earth surface and significant changes of propagation conditions depending on the geographical location, frequency, time of day, season, solar activity, and other circumstances.
The user of the ASSB-256-CM Black Mic can work with one from 3 (three! – 600, 1200 or 2400 bps) rates of built-in vocoder depending on the current propagating conditions. The ASSB-256-CM Black Mic automatically detects and processes the incoming signal with different bps rates (Autobaud). The ASSB-256-CM Black Mic automatically detects and processes the incoming signal clear or encrypted (Automode).
The ASSB-256-CM Black Mic provides true digital encrypted voice privacy with crystal-clear audio quality that is fully compatible with HF, VHF, UHF communications channels.
The ASSB-256-CM Black Mic has the ability to be upgraded with any future improvements via upgrade file. The programming and key loading is occurred via PC.
Please contact us for further information.
Specifications of the ASSB-256-CM (Black Mic)
| General | |
| Operating Temperature | -30 deg.C to +60deg.C |
| Power Input | +8V to +36V DC |
| Operating Modes | Digital Voice, Analog Voice
(Encrypted/Clear) |
| Supply current | 0.5A max @ 12V DC |
| Dimension | 144mm X 37mm X 85mm |
| Speaker | 1W Built-in |
| |
| Technical | |
| Bandwidth | 400 to 2600 Hz |
| Channel modulation | 8PSK |
| Subcarrier | 1350 Hz |
| Interleaver | 360 ms |
| Compensation of frequency drift | ±30 Hz, 1 Hz/sec |
| Compensation of symbol speed mistiming | ± 100*10-6 |
| Compensation of multipath/fading | 0…5 ms, 3…8 Hz |
| Receive – transmit delay DV | 1.5 sec |
| Vocoder | 600/1200/2400 bps |
| |
| Security | |
| Encryption Algorithm | AES256 |
| Length of key | 256 bit |
| Number of key | 16 |
| Selection of key | Manual |
| Customer Encryption Option | Available |
| |
| Interfaces | |
| Input Audio | 600 Ohm, un-balanced, -135 to +10 dBm |
| TX Output Audio | Un-Balanced, -35 to +10 dBm (adjustable into 600 ohm load) |
| PTT Line | Open Collector to ground
(max 50v, 50mA) |
| Default Connector | 9-pin circular |
| |
| Options | |
| Adaptor Cable | 9-pin round socket to open ended cable to form mating lead with desired radio |
| Programming Cable | ADP-9-USB-CM |
See additional information here
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