IC-20 Series Radio Modems

Accurate real-time data transmission over a radius of several miles, is as simple as the IC-20 series of wireless radio Modems. Unlike many shorter range radio modems requiring repeater systems to accomplish longer ranges, the IC-20 does not cause throughput reduction associated with such repeaters. This reliable transceiver is easy to set up, operate, and maintain. In addition it is more economical than shorter range equipment requiring multiple access points or repeater systems.

 Photo of IC-20

Technical
Specifications
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Monicor IC-20
Long Range
Modems

Operating Information

Data is transferred synchronously over the radio link at 2400 or 4800 bps (depending upon model). Communication is over a single channel, so throughput depends on the length and frequency of messages for each remote unit. the PAD (Packet Assembly and Disassembly) interface provides full access to multiple portable units via the asynchronous RS-232 port, and the profile is configurable to match different types of terminal equipment. For a more complete description see Radio Modems



Product Specifications

General Features
  (Specifications differ with options)
  Frequency 450-470 Mhz, 406-420 Mhz available
  Turn-On Response Time 2 milliseconds
  Data Throughput Up to 520 characters per second
  Channels 1 Channel/Half duplex
  Operating Temperature -30° to 60° Celsius (Expanded range -40° to 74° Celsius)
  Storage Temperature -30° to 60° Celsius
  Humidity 0 to 90% non-condensing
  Housing EMI-protected
  RF Connector BNC
  RS-232 Interface DB-9
  Message Transmission Synchronous variable length X.25 packets with error detection and correction
  FCC Type# GES4BAIC-20
  Case, Dimensions Metal, 3.7" x 7.5" x 1.9"
  Power, voltage External Source, 7.5 volts DC
  Weight 17 oz

Receiver Features
  Sensitivity 12 db SINAD: < 0.35 µ V
  Frequency Stability ± 5 PPM
  Selectivity > 85 db
  Intermodulation > 60 db
  Spurious Rejection > 60 db
  Emissions < -50 dbm
  Noise Figure @ 25 C < 75. db
  Current drain 65 mA

Transmitter Features
  RF Power Output 2 watt maximum
  Conducted Spurs > -55 dbc
  Frequency Stability ± 5 PPM
  Nominal Current Drain 1500 mA