SmarTrunk II is a
decentralized two way radio trunking system that is widely used both for
telephone interconnect and business dispatch applications at frequencies
below 800 MHz.
First introduced in 1994, SmarTrunk II combines a proprietary digital
signalling format with existing two way radio technology-creating a
communications system that is low cost, yet provides many of the
features of higher cost trunked radio systems such as MPT1327.
Today SmarTrunk II provides local area wireless solutions to over
400,000 subscribers in over 90 countries throughout the world. Due to
its growing popularity, SmarTrunk II is sold in partnership with
international radio manufacturers such as Standard and Yaesu/Vertex.
Virtually any organization which seeks to provide local area
communications can benefit from SmarTrunk II:
-
Community repeater operators can offer group dispatch and
selective mobile to mobile calling to existing customers or expanding
markets.
-
Rural telephone operators can provide telephone service to
individual subscribers-without investing in the enormous cost of a
wire line or cellular infrastructure.
-
Radio dealers can offer a combination of telephone and radio
dispatch services, depending on the needs of individual customers.
-
Large industrial companies can use SmarTrunk II as a wireless PABX,
connecting all employees, in addition to supporting group calling
capabilities.
Requirements
A SmarTrunk II radio trunking system employs low cost radio
communications equipment and SmarTrunk II technology, which is installed
at both the base station and the subscriber radios. A single SmarTrunk
II system will support up to 16 radio channels and 4,000 subscribers.
The base station equipment required for each channel consists of a
SmarTrunk II controller connected to a standard VHF or UHF radio
repeater. For telephone interconnect applications, the controller is
also connected directly to a standard telephone line via a RJ-11 jack.
Each channel can support one individual conversation. Therefore, a three
channel system can support three simultaneous private conversations.
Since SmarTrunk II is an "overlay" system, each of the subscriber radios
must have a customized logic board to control the radio's operations.
a 3-channel SmarTrunk Racked System
SmarTrunk Features
| SMARTRUNK II VS. CONVENTIONAL
REPEATERS |
| FEATURE |
ADVANTAGE |
BENEFIT |
| A Low Cost Wireless Solution |
Lower cost than any other trunking solution. |
Can co-exist with conventional users on same
channels. System operators can achieve a faster return on
investment. |
| Supports Telephone Interconnect and Dispatch
Operation |
One system can support a variety of communication
needs. |
System operators can meet the specific needs of a
subscriber market. |
| Employs a Digital Signalling Format |
Enhanced speed and security compared to analogue
systems. |
No unauthorized users on a system. |
| Radio Trunking Permits Common Usage of Shared
Frequencies |
Fewer frequencies serve more people. |
Efficient use of frequency spectrum. |
| Usage of Shared Frequencies |
| Designed for System Growth |
Easily expandable up to 16 channels as growth
requires. |
Subscribers can continue to have a high level of
service as more subscribers are added. |
| An Overlay System |
Comparable with most popular two way radios. |
System specifications, features, and cost can be
selected based upon the demands of specific markets. |
| Call Record Accounting |
All caller activity is registered in the
controller. |
Detailed activity reports are available for account
billing or system analysis. |
| Cellular Like User Interface: Store + Send Dialling,
last # Redial, Memory Speed Dial |
Increased dialling accuracy and efficiency. |
Faster subscriber access time. |
| Does Not Require Exclusive Channels |
Can co-exist with conventional users on same
channels. |
Allows gradual migration from conventional to
trunked operation. |
|
