Digital Wireless Corporation manufactures i2way brand fully digital mobile communications equipment and networks which operate in narrowband land mobile channels with 12.5 kHz or 6.25 kHz channel spacing.
12.5/6.25 DM-1000 Mobile Radios
12.5/6.25 DB-1000 Digital Base Station

The first fully-featured all-digital land mobile transceivers are still the best: the i2way DM-1000 series i2way radios from Digital Wireless Corporation. With very large talkgroup and channel capacity, these intelligent mobile units can roam over an area as large as necessary and automatically stay in contact with any i2way repeater site within range. No operator involvement is required, except to change talkgroups as desired or access the radio's many special features.

Data from the built-in GPS receiver, including instantaneous position, speed and heading, is continuously embedded in every transmission made by the radio, whether automatically polled or manually initiated. This allows the dispatcher to track the location of any vehicle in a fleet at any time, an invaluable tool for route planning, resource redeployment to meet changing requirements and especially for the location of any vehicle in an emergency situation.

 


Providing both Single Channel Conventional and Trunking, the i2way DB-1000 offers flexibility beyond any product of its type. In a compact package, the AC or DC powered DB-1000 includes two frequency-agile receivers with a third receiver input, a spectrally pure digital transmitter with analog FM capability, an integral controller board and a built-in Internet router. Capable of wide-area networking by the simple addition of an Ethernet connection to the Internet or other IP connectivity, the radio also includes internal battery capacity of one hour of keydown transmit (at 25 watts), more than capable of bridging the gap between AC power loss and standby generator stabilization.

Fifty watts of power means that your signal will be heard, and the 12.5 kHz and 6.25 kHz channel capabilities ensures that you will have few problems obtaining frequencies for your system. The unique frequency-agile second receiver provides space diversity reception as well as allowing monitoring of the output frequency which may be in use at a different location in situations where the channels are shared, and makes compliance with FCC trunking rules easier than ever.

12.5/6.25 DP-1000 Portable Radio
IP Dispatch Consoles

The i2way Network is a cellular dispatch network, designed to support handheld portable radios. The DP-1000 Portable is designed to meet the expectations users have for small, pocket-sized "phones". It combines an i2way-compatible digital transceiver with a powerful, PDA computer. Powered by a 32 bit 400 MHz processor, the DP-1000 features a large, TFT LCD color display with a white LED backlight, trouble-free capacitive keyboard,Class D audio amplifier, and the same "analog-sounding" digital audio i2way users have come to expect. Designed to use both a collapsible antenna and a flexible "rubber duck" antenna, the DP-1000 is equipped with a built-in GPS receiver, and a digital camera.

i2way Networks may be equipped with desktop dispatch consoles that essentially emulate mobile radios - but over Ethernet. i2way consoles are IP-based and are inexpensive, easy to maintain, and most importantly, completely digital. They are the dispatcher's link to the i2way end-to-end digitally secure network.

Plugging a Cat-5 cable directly into the RJ-45 on the back of the small, desktop console connects your dispatcher to the i2way IP network.

With an i2way Console, the dispatcher has immediate access to any group or individual unit, plus many additional features such as text messaging, GPS automatic vehicle location, cross band links, and more.

If the Cat-5 cable has 48 volt PoE (Power Over Ethernet) a separate power connection is unnecessary. But the console has a 12 volt power input anyway.

D-Trac Enhanced Automatic Vehicle Location

i2way systems provide automatic digital vehicle tracking embedded in each radio transmission. i2way voice and data transmissions are packetized and each packet contains routing information and complete GPS data. Therefore it is easy and reliable to track the movement and location of mobile radios in vehicles and handheld portable units down to within a few feet. Each transmission contains the latitude/longitude of each unit, its speed and heading, its altitude, and the time of the fix transmitted. Of course each packet may also contain a payload, either digital voice or user data, such as short text messages or data from a laptop computer connected to the radio unit.

Special GPS packets may be sent without any payload, and are used to automatically track radios on a periodic basis, as frequently as every 5 seconds. When you receive a new i2way radio from the factory, its default settings cause a GPS “ping” to be sent every fifteen minutes.

Ultra Narrowband 6.25 kHz Operation

TM

DWC's DM-1000 series mobile radios, DB-1000 base station and DP-1000 portable operate on 6.25 kHz (and 12.5 kHz) channel spacing, which opens up hundreds of new, virgin channels in the Part 90 bands in the United States. The i2way digital protocol allows full quality dispatch mobile voice and data dispatch operation to work in 6.25 Ultra Narrow channels. On 6.25 kHz spaced channels, the i2way signals occupy 6 kHz bandwidth.

12.5/6.25 Dispatch Control Station
iStat Status Display Program

The DM-1000 series mobile radios are available in a desktop control station package. The mobile transceiver and mobile control head are integrated in an enclosure along with a 110-220 VAC power supply and 5 AH battery.

The battery allows the unit to operate for, on average, up to one hour without AC power, and also filters the power coming from the AC mains.

The control station is also available as a 19 inch rack mount unit, and can support a number of desktop remotes. AVL position data received from mobiles may be connected by way of either USB or RS-232 serial ports to a PC computer running i2way D-Trac software.

The i2way iStat software application provides a simple to read display of the status of a fleet or radios. User-defined status messages may be transmitted from mobiles with two keystrokes. Color-coded boxes indicate the importance of each of the received messages. The dedicated "emergency" button on a mobile or portable radio causes a red border on a mobile's display box. The status of a radio's power switch in transmitted without operator intervention. Certain vehicle functions, such as the position of a boom on a bucket truck, may be sent and logged. All status messages, along with the appropriate unit number, time and GPS location, are logged on the i2way Logging Recorder.

DN-100 Logging Recorder
Desktop Remote

Audio and non-audio data transmitted in an i2way system may be "logged" or "recorded" by a DN-100 Digital Logging Recorder. Communications on all trunked or conventional channels may be stored in".dwc" files. Because this is a transmission-oriented recorder, the DN-100 does not record "silence" between transmissions so it can store years of activity.

DN-150 Archive Playback Software allows "after action review" of logged transmissions, including audio playback and synchronized feed to D-Track Mapping Software. The logged files may be sorted by category, group, and ID number, and selected files played back or copied to new directories.

When its valuable to have multiple dispatch points in one building, a number of i2way Desktop Remotes can provide a solution. Supported by a single rack-mounting version of an i2way Dispatch Control Station, up to ten DN-750 desktop remotes can be installed as far as 200 feet from the radio.

The remotes offer a telephone-style handset for privacy as well as a built-in panel microphone and PTT switch. A "replay" button activates the built-in i2way instant replay feature.

Parallel remotes automatically monitor both sides of a two-way conversation. DN-750 remotes do not have unit and group selection capabilities, but remain fixed on a preset group ID. The remotes use standard Cat 5 cable, pre-installed in many buildings, so installation is simple.

Remote Repeater Monitor
Analog Interface

The i2way Base Station Repeater Monitor permits remote access via the Internet to all front panel controls and displays. Technicians can check on their remote systems without leaving the office.

i2way digital radio systems may be interfaced to existing analog radio systems by the DC-500 Analog Interface. This unit can selectively selectively "cross patch" communications from legacy analog radio systems to the i2way Network. The DC-500 can control FM, SSB and AM repeaters and mobiles, paging systems, and many other communications devices.

Using the i2way protocol, the DC-500 makes an analog communications system a digital group on the i2way Network, allowing i2way Network radios to selectively access the analog system. A rear panel RJ-45 allow direct network connection via Ethernet.

i2way Network Monitor
Windows Vista Router

 

The i2way Network Monitor application runs on a Windows PC and continuously reports the health of your i2way repeaters, and their network connectivity, via the Internet.

 

The i2way "IP/IO" router program runs on Windows XP and Vista operating systems, providing a rugged and secure communications router allowing applications and hardware, such as i2way consoles, to connect to an i2way IP Network. IP/IO also links e-mail between your mobile fleet and your existing email server.

Inband Linking
12.5/6.25 Portable Mobile Transceiver

Every wireless network has dangerous single points of failure in its infrastructure. Traditionally these have been switching equipment or the "backhaul" between the switches and the repeater sites. i2way Network use distributed IP routing so there are no longer any "switches' to fail. However the IP connectivity between radio sites, whether that be microwave, rented telco DSL, or any other wired or wireless means of providing Internet or Intranet IP connectivity may fail. i2way systems have been deployed in the risky Gulf of Mexico region in the southern U.S. where a hurricane could easily wipe out a fixed microwave system, thus disconnecting an i2way repeater from the network. i2way DB-1000 repeaters automatically form a mesh IP network using their normal PMR frequencies to nearby DM-1000 repeaters. Consequently should an element of an i2way network lose backhaul connectivity, it automatically bonds to nearby i2way sites, typically within a radius of 100 miles.

i2way InBand LInking may also be used to provide primary network links in installations where it is not practical to obtain Internet connectivity. For example a remote rural installation could "daisy chain" i2way repeater sites without any secondary link (e.g., microwave) between i2way repeaters.

The DM-1000 series mobile radios are available in a portable mobile control station package. The mobile transceiver is integrated in an enclosure along with a 110-220 VAC power supply and 5 AH battery.

The battery allows the unit to operate for, on average, up to one hour without AC power, and also filters the power coming from the AC mains. AVL position data received from mobiles may be connected by way of either USB or RS-232 serial ports to a PC computer running i2way D-Trac software.

Encryption and Security
i2way systems utilize Digital Wireless Corporation's proprietary i2way Network over-the-air protocol. Because it is not pubished and secure, no scanner manufacturers have cracked it. The i2way format also uses Digital Wireless Corporation's proprietary 2, 400 bps vocoder which compresses 64 k pcm audio down to narrow enough bandwidth to be transmitted on 6.25 kHz channels. And the new 2,400 bps vocoder sounds just like analog audio - but without the noise. And to further protect the integrity of i2way systems, 256 bit AES encryption is standard. i2way transmits the same baseband format and data -- encrypted and proprietary -- over the Internet so no interception is possible.
Network Tracking Systems

i2way digital radio products and i2way network communications services may be utilized to manage many types of large scale fleet operations. Some examples include railroad freight dispatching and train control, public transit operations, harbor management, public utility fleet coordination, public safety and strategic military operations.

The basic tools used to track a field force are i2way mobile and portable radios and GPS transponders, deployed upon vehicles, vessels and trains and hand-carried by personnel. These units provide secure voice and data communications and their location can be displayed in real time at refresh rates as often as 5 seconds. All activity and communications may be permanently recorded for “after action review” (playback).

Contact Digital Wireless Corporation

i2way Products are FCC and Industry Canada approved for use in the United States and Canada

 

Copyright 2007 Digital Wireless Corporation, Post Office Box 86486, Los Angeles, CA 90086 USA. All rights reserved.