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Alligator Communications Model 920A
 

Alligator's 902-928 MHz ISM Band license-free spread spectrum radio employs the latest wireless data transfer technology to provide the most reliable and secure performance. With over 30 user-selectable hop tables and access to over 50 frequencies, the Model 920 overcomes the interference problem experienced by other spread spectrum radios.

The radios can be rapidly configured for utilization in Point-to-Point or Point-to-Multipoint applications with the provided utility software. The quick configuration option in the software allows multiple radios to be configured with the same setup information without repeating through the menu selection.

Key features

  • Frequency Hopping

  • Up to 57,600 bps Full Duplex

  • Store and Forward Data Repeating

  • 30 Selectable Hop Tables

  • RS232 Standard Data Interface

Implementation

The radio can also be configured as a repeater via Store & Forward data configuration, and can effectively extend the coverage of the radio network. To assure the integrity and security of the data, Error Detection techniques are inherent in the design of the radio's performance. The radio's standby or sleep modes help conserve power where power consumption is a concern. Alligator's spread spectrum radios are technically sophisticated yet easy to set up, and they can be deployed quickly to save time and money.

Radio Circuit Specifications *

Frequency: 902 to 928 MHz
Radio Type: Frequency Hopping Spread Spectrum
Radio Configuration:
(user-configurable via
provided utility software)
Point-to-Point
Point-to-Multipoint (Broadcast Mode)
Repeater
Channels: 50 Non-Interfering Frequencies
Radio Address: 239 User-Selectable
Hop Patterns: 30 User-Selectable
Radio Range (Line of Sight): Up to 35 Kilometers with Outdoor Directional Antenna
Error Detection and Correction: Error Detection & Retransmit
Data Rate: 600 to 57,600 bps Full Duplex
Hardware Interface: RS232 (Optional: RS485)
Bit Error Rate: BER 1 x 10-6 at -102 dBm
RF Power: 50 mW Low Power, to 970 mW (+29.6 dBm)
Data Format: 8/9 Bits, 1 Stop Bit, Asynchronous Data
Certifications: US FCC Part 15.247,
Industry Canada RSS-210

General Specifications *

Input Voltage: 12 Vdc
Current Consumption:
     Transmit Mode:
     Receive Mode:
     Standby Mode:
     Over Current Protection:
 
< 500mA High Power, < 200mA Low Power
< 100 mA
< 10 mA
Internal Self-Resetting Solid State Fuse
Connectors:
     Antenna:
     Power:
     Data:
 
Type "N" Female
1/4 Turn Locking
DB-25 Female
Environment:
     Temperature:
     Humidity:
     Dimensions:
 
-40°C to +60°C
0% to 95% (Non-Condensing)
1.4" (3.6 cm) H x
5.25" (13.3 cm) W x
6.75" (17.2 cm) L
Material: Aluminum Alloy Enclosure
Weight: 1.75 pounds, 0.8 kg

* Specifications are subject to change without notice.

 

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