Tait TB7300 User manual

TB7300 Base Station
Installation and Operation Manual
MBD-00001-14 · Issue 14· June 2020

2TB7300 Installation and Operation Manual
© Tait International Limited June 2020
Contact Information
Tait Communications
Corporate Head Office
Tait International Limited
P.O. Box 1645
Christchurch
New Zealand
For the address and telephone number of regional
offices, refer to our website:www.taitradio.com
Copyright and Trademarks
All information contained in this document is the
property of Tait International Limited. All rights
reserved. This document may not, in whole or in part,
be copied, photocopied, reproduced, translated, stored,
or reduced to any electronic medium or machine-
readable form, without prior written permission from
Tait International Limited.
The word TAIT and the TAIT logo are trademarks of
Tait International Limited.
All trade names referenced are the service mark,
trademark or registered trademark of the respective
manufacturers.
Disclaimer
There are no warranties extended or granted by this
document. Tait International Limited accepts no
responsibility for damage arising from use of the
information contained in the document or of the
equipment and software it describes. It is the
responsibility of the user to ensure that use of such
information, equipment and software complies with the
laws, rules and regulations of the applicable
jurisdictions.
Enquiries and Comments
If you have any enquiries regarding this document, or
any comments, suggestions and notifications of errors,
please contact your regional Tait office.
Updates of Manual and Equipment
In the interests of improving the performance,
reliability or servicing of the equipment, Tait
International Limited reserves the right to update the
equipment or this document or both without
prior notice.
Intellectual Property Rights
This product may also be made under license under one
or more of the following patents:
- US7203207, AU2004246135, CA2527142,
GB2418107, HK1082608, MY134526, US8306071
- US7339917, AU2004246136, CA2526926,
GB2418812, MY134217
- US7499441, AU2005262626, CA2570441,
GB2430333, JP4690397, NZ551231, KR100869043,
RU2351080, BRP10512052, MXPA06015241
- US 7200129, AU2005226531, CA2558551,
CN1930809, GB2429378, JP4351720, BRP10508671,
NZ549124, KR848483, RU2321952
Environmental Responsibilities
Tait International Limited is an environmentally
responsible company which supports waste
minimization, material recovery and restrictions in the
use of hazardous materials.
The European Union’s Waste Electrical and Electronic
Equipment (WEEE) Directive requires that this
product be disposed of separately from the general
waste stream when its service life is over. For more
information about how to dispose of your unwanted
Tait product, visit the Tait WEEE website at
www.taitradio.com/weee. Please be environmentally
responsible and dispose through the original supplier,
or contact Tait International Limited.
Tait International Limited also complies with the
Restriction of the Use of Certain Hazardous Substances
in Electrical and Electronic Equipment (RoHS)
Directive in the European Union.
In China, we comply with the Measures for
Administration of the Pollution Control of Electronic
Information Products. We will comply with
environmental requirements in other markets as they
are introduced.

TB7300 Installation and Operation Manual 3
© Tait International Limited June 2020
Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Scope of Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Document Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Associated Documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Publication Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.1 Software Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.1.1 Base Station Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.2 Frequency Bands and Sub-bands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
1.3 Software Application Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.3.1 P25/AS-IP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.3.2 DMR/MPT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.4 Licences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.4.1 Compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.4.2 Feature Licences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1.5 Theory of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
1.5.1 Signal Paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
1.5.2 Online and Offline Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1.5.3 Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1.5.4 Front Panel Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2 General Safety and Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.1 Personal Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.1.1 Explosive Environments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.1.2 High Temperatures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.1.3 LED Safety (EN60825-1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.1.4 Proximity to RF Transmissions / A proximité des émissions RF . . . . . 22
2.2 Equipment Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.2.1 Installation and Servicing Personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.2.2 Preventing Damage to the PA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.2.3 ESD Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.3 Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.3.1 Operating Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.3.2 Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.3.3 Dust and Dirt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.4 Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.4.1 Distress Frequencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.4.2 Compliance Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.4.3 Unauthorized Modifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.4.4 Health, Safety and Electromagnetic Compatibility in Europe . . . . . . . 25

4TB7300 Installation and Operation Manual
© Tait International Limited June 2020
2.5 Device and Network Security. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.1 Front Panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.2 Rear Panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.2.1 Ethernet Connector LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4 Connecting to the Base Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.1 PC Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.2 Connecting Your PC to the Base Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.2.1 Logging In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.2.2 Setting the IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.2.3 Security Certificates. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.2.4 Local Connection to a Base Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.2.5 Troubleshooting Connection Problems . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.2.6 Finding a Lost or Forgotten IP Address. . . . . . . . . . . . . . . . . . . . . . . . . 32
4.2.7 Setting Up Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.3 Working with the Web Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.3.1 Monitoring Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.3.2 Viewing Configuration Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.3.3 Viewing the Base Station and Network Identity . . . . . . . . . . . . . . . . . . 36
4.4 Basic Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.4.1 User Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.4.2 Taking the Base Station Offline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.4.3 Troubleshooting Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.4.4 Working with Configuration Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4.4.5 Single or channel group base stations . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4.4.6 Marshaling or transmit delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4.4.7 Configuring Receive-Only Base Stations . . . . . . . . . . . . . . . . . . . . . . . 42
4.4.8 Setting Up Custom Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4.4.9 Updating Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.4.10 Firmware upload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4.4.11 Downloading Firmware from a Package Server . . . . . . . . . . . . . . . . . . 45
4.4.12 Activating New Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
4.4.13 Switching Application Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
4.4.14 Subaudible Signaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
4.4.15 SNMP Network Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
5.1 Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
5.1.1 Equipment Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
5.1.2 Grounding and Lightning Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
5.1.3 Equipment Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
5.1.4 Ambient Temperature Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
5.1.5 Cabinet and Rack Ventilation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
5.2 Unpacking the Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
5.3 Identifying the Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

TB7300 Installation and Operation Manual 5
© Tait International Limited June 2020
5.4 Initial Setting Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
5.4.1 Confirming Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
5.4.2 Working with Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
5.4.3 Customizing the Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
5.4.4 Restricted Port Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
5.4.5 Changing the Root Password. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
5.4.6 Tuning the Receiver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
5.5 Installing the Base Station on Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
5.5.1 Base Stations for Trunked Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
5.5.2 Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
5.6 Mounting the Base Station. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
5.6.1 Mounting and Support Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
5.7 Connecting the Base Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
5.7.1 Connection Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
5.7.2 Connecting DC Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
5.7.3 Connecting RF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
5.7.4 Connecting an External Frequency Reference . . . . . . . . . . . . . . . . . . . 66
5.7.5 Connecting a 1PPS Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
5.7.6 Ethernet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
5.7.7 Connecting General Purpose Inputs and Outputs . . . . . . . . . . . . . . . . . 69
5.7.8 Setting Up Simplex Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
6 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
7 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Appendix A – Interface Pin Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
System Interface Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Ethernet Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Serial Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Appendix B– Installing the Firmware Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Mongoose Installation Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Setting Up a Central Package Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Setting up a Temporary Package Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Glossary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Tait General Software License Agreement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Simplified EU Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

6 Preface TB7300 Installation and Operation Manual
© Tait International Limited June 2020
Preface
Scope of Manual
This manual provides information on installing and operating the TB7300
base station. It is intended for use by experienced technicians familiar with
installing and operating base station equipment. It also includes
configuration, maintenance and troubleshooting information.
Document Conventions
The TB7300 base station has a web interface with an accordion menu on
the left side of the screen. “Configure > Base Station > Channels” means
click Configure in the top-level menu, then in the expanded Configure
menu click Base Station, and finally click on the Channels tab on that page.
Within this manual, four types of alerts may be given to the reader. The
following paragraphs illustrate each type of alert and its associated symbol.
Warning This alert is used when there is a hazardous situation
which, if not avoided, could result in death or serious injury.
Caution This alert is used when there is a hazardous situation which,
if not avoided, could result in minor or moderate injury.
Notice This alert is used to highlight information that is required to
ensure procedures are performed correctly. Incorrectly performed pro-
cedures could result in equipment damage or malfunction.
This icon is used to draw your attention to information that may
improve your understanding of the equipment or procedure.

TB7300 Installation and Operation Manual Preface 7
© Tait International Limited June 2020
Associated Documentation
The current set of TB7300 product documentation is available on the Tait
support website. Printed copies of the documentation are available on
request.
■TB7300 Specifications Manual (MBD-00002-11).
■TN9300 DMR Radio Network System Manual (MNB-00003-20).
■TN9300 DMR Radio Network Node Controller Installation Manual
(MNB-00001-11).
■Safety and Compliance Information (MBA-00012-13).
■TN9400 P25 Trunked Network Maintenance Manual (MNC-00001-09)
■P25 Channel Group System Manual (MND-00002-07)
■AS-IP Channel Group System Manual (MND-00001-08)
Technical notes are published from time to time to describe applications for
Tait products, to provide technical details not included in manuals, and to
offer solutions for any problems that arise. Look for new or updated
technical notes on the Tait support website.

8 Preface TB7300 Installation and Operation Manual
© Tait International Limited June 2020
Publication Record
Issue Publication Date Description
14 June 2020 General updates for Non-Patch Release version 3.10.
■Updating Firmware section features Reciter 2 content
■Tables added with Reciter 1 and 2 comparisons
■Activating Firmware section features Reciter 2 content
■Minor updates throughout
14* May 2020 General updates for Patch Release version 3.05.01.
■Added H-band electronic tuning
■Minor updates throughout
13 November 2019 General updates for release version 3.05.
■Minor updates throughout
■Wideband license added
12 July 2019 General updates for release version 3.00.
■Interoperability between P25/AS-IP and DMR/MPT
software applications
■Terminology
■List of channels
■Loading channels and setting up firmware
■Simplex operation
■SNMP management and MIBs
11 March 2019 General updates for release version 2.60.
■Updated licences table to include MPT Trunked
■Updated network connection screenshots
■Included security risk information about Mongoose
■Updated default configuration parameters
■Mounting and Support Kits section added
■Equipment section updated to include CTU and cable
10 December 2018 General updates for release version 2.55.
■Updated root password information
■Added that external reference is required for Simulcast
■Web UI tab changed to Analog RF
■Working with Configurations section now matches the
TB9300 equivalent
9 July 2018 General updates for release version 2.50.
■Updated all company name references from “Tait
Limited” to “Tait International Limited”.
■Added table under “Tuning the Receiver” to indicate
which bands are manually tuned, and which are
electronically tuned.
■General updates throughout.
8 March 2018 General updates for release version 2.45.
■“Configuring Receive-Only Base Stations” section has
been added
■Order of publication record has been switched so that
the most recent issue is at the top of the table
■Clarified “Frequency Bands and Sub-Bands” table
■“Connecting a Networked PC to a Base Station” is now
called “Local Connection to a Base Station” and has
been updated

TB7300 Installation and Operation Manual Description 9
© Tait International Limited June 2020
1 Description
The Tait TB7300 base station is a robust state-of-the-art digital fixed
station that combines Tait’s proven strengths in reliability and high
performance with software-based configurability and operation, digital
signal processing and voice-over-IP technology.
Its Ethernet interface provides built-in network connectivity that allows the
base station to join with other base stations to form a channel group. This
network supports voice-over-IP and remote management of all base
stations via a web browser.

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1.1 Software Applications
The TB7300 operates in both P25/AS-IP and DMR/MPT networks. Within
these networks, the base station utilizes distinct P25/AS-IP and DMR/MPT
software applications.
1.1.1 Base Station Features
The following is a list of base station features for both P25/AS-IP and
DMR/MPT software applications:
P25/AS-IP ■Fully compliant with the P25 Common Air Interface. Can therefore
interoperate with any similarly compliant radios.
■Supports P25 Phase 1 conventional operation with C4FM modulation
on the transmitter.
■Supports simulcast operation with P25 phase 1.
■Analog conventional repeater operation.
■Analog conventional simulcast operation on an IP backbone requiring
no audio calibration or training.
■Integrated built-in voting facility. No external voter is needed.
DMR/MPT ■Fully compliant with the DMR Tier 2 and Tier 3 Standards.
Can therefore interoperate with any similarly compliant radios.
■Analog conventional repeater operation.
■MPT operation as control channel or traffic channel transceiver in MPT/
IP network including standalone operation.
■Digital simulcast operation.
Non-Application
Specific ■Can be completely managed remotely from a PC running a web
browser: configuration, alarm monitoring, fault diagnosis, syslog,
feature and firmware upgrades. Alarms can also be reported via SNMP
traps, allowing integration with an SNMP-based network management
system.
■Rugged construction with generous heatsinks and fan-forced cooling
for continuous operation from –30°C to +60°C (–22°F to +140°F).
■Supports an analog 600 Ohm connected repeater in an analog
conventional network with CTCSS or DCS subaudible signaling1.
1. Continuous Tone Coded Squelch System Commonly referred to as PL, an
acronym for Private Line
(DCS) Digital Code Squelch Commonly referred to as Digital Private Line

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1.2 Frequency Bands and Sub-bands
Much of the circuitry in the base station is common to all frequency bands,
and is therefore covered by a single description in this manual. In some
cases the descriptions refer to specific bands or sub-bands, and these are
identified with the letters listed in the following table.
Warning B3 and H5 bands are compliant with P25/AS-IP operation.
H3 band is not compliant with P25/AS-IP operation.
Frequency
Identification Frequency Band and Sub-band 40W 50W
B band B3 = 148MHz to 174MHz x ✓
H band H3 = 470MHz to 520MHz
H5 = 400MHz to 470MHz
✓
✓
x
x

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1.3 Software Application Details
1.3.1 P25/AS-IP
With the P25/AS-IP software application, the TB7300 is interoperable with
TB9400 base stations, and therefore operates in P25 conventional networks
and analog conventional networks. It operates as a stand-alone repeater/
base station, or as part of a channel group, providing receiver voting and
simulcast transmission. All air interfaces and system types support
simulcast operation.
In a P25 conventional network, the TB7300 operates as a single or wide
area conventional repeater, with receiver voting and optional simulcast.
Dispatch connection is via three distinct interfaces:
■P25 standard DFSI connection (up to three connections simultaneously)
■Analog line
■Tait P25 Console Gateway, supporting conversion between P25 and
analog consoles with MDC1200 signaling
In an analog conventional network, the base station can operate as a
repeater with CTCSS1or DCS subaudible signaling.
The base station can also operate as part of an analog conventional
simulcast network and is fully IP-connected. The base station also features
an internally integrated voter, and therefore requires no external voter.
For more information on these applications, refer to the Help and
appropriate Tait System Manual.
1. Private Line (PL).

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1.3.2 DMR/MPT
The TB7300 is designed for operation in a Tait TN9300 DMR Tier 2
conventional radio network, a Tait TN9300 DMR Tier 3 trunked radio
network, an MPT-IP network, or as an analog conventional repeater.
In a DMR Tier 2 conventional network, the TB7300 can operate as a stand-
alone repeater, or as a member of a multi-site system (under the supervision
of a DMR conventional node). Since DMR provides two logical channels
(timeslots) simultaneously for each radio frequency (physical channel),
two users can alternately access the same frequency, one in each timeslot.
Base stations on different sites can be linked together to form channel
groups. A base station can support two channel groups, one in each
timeslot.
In a DMR Tier 3 trunked network the TB7300 can operate as a control
channel or as a traffic channel. With two logical channels for each radio
frequency, a single TB7300 base station can provide two traffic channels,
two control channels, or both a traffic channel and a control channel.
In an MPT network, the TB7300 operates as a control channel or as a traffic
channel. The TB7300 operates with a trunking node or in fallback
operation either trunked or conventional.
In analog operation it can operate as a conventional repeater with CTCSS1
subaudible signaling and DCS subaudible signaling.
For more information, refer to the DMR System Manuals.
1. Private Line (PL).

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1.4 Licences
Some operational functions of the base station are controlled by licences.
These functions will not work unless you purchase the appropriate feature
licence and enable the feature set controlled by that licence.
Regardless of which software application you have configured on the
TB7300, you can add and remove both P25/AS-IP and DMR/MPT
licenses.
Note that only licenses associated with your currently configured appli-
cation will be enabled.
For more detailed information, please see the base station help.
1.4.1 Compatibility
The compatibility rules for P25/AS-IP and DMR/MPT are defined in the
following tables:
The base stations in a Tait DMR Tier 3 Network are controlled by a
node (DMR trunking controller). Tait sells three types of node: Full,
Express20 and Express6. Each type of node has different capabilities.
Refer to TN-2134 for more information
TN9400 - Site Controller
Access Express6 Full System
Base Station
P25 Access Trunking ✓xx
P25 Express6 Trunking
Operation ✓✓ x
P25 Trunking Operation ✓✓✓
DMR - Controller
Full Express20 Express6 Standalone
Access
Base Station
Full ✓✓✓✓
Express20 x✓✓✓
Express6 xx ✓✓
Access xxx✓

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1.4.2 Feature Licences
The following section lists each of the available feature licences for both
P25/AS-IP and DMR/MPT.
P25/AS-IP Feature Licences
Feature Licence Description
Analog Air Interface
(TBAS041) A base station with this license can operate as a repeater in an analog conventional network.
P25 Common Air Interface
(TBAS050)aAllows a base station to transmit and receive P25 Phase 1 C4FM digital
voice transmissions.
P25 DFSIa
(TBAS060) Allows the base station to integrate with dispatch consoles supporting DFSI (Digital Fixed Station Interface).
P25 AS-IP Central Voter
(TBAS061) P25 and analog. This feature allows a base station to act as a central voter.
P25 AS-IP IP Networking
Satellite
(TBAS071)
All system types and all air interface types. This feature allows a base
station to be part of a channel group without requiring the Central Voter
(TBAS061) license.
P25 AS-IP Simulcast
(TBAS062)
This feature is required in base stations that have transmitters and belong
to a P25 Phase 1 simulcast or analog simulcast networkb. It is also required
in the central voter of a simulcast channel.
20/25 kHz Unrestricted
Wideband
(TBAS083)
Allows a base station to be configured to operate in wideband mode on an
analog channel, which provides a maximum deviation of 5KHz, and a
25KHz channel spacing.
a. Not available with H3 band
b. Not needed for receive-only base stations.

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DMR/MPT Feature Licences
Feature Licence Description
Analog Air Interface
(TBAS301 - Default License) A base station with this license can operate as an MPT transceiver or an analog conventional repeater.
DMR Conventional
(TBAS304)
A base station with this license can operate in a Tait DMR Tier 2
conventional network. It can also operate as a stand-alone repeater, or
as a member of a multi-site system (under the supervision of a DMR
conventional node).
DMR Trunking Access
(TBAS303)
A base station with this license can accept connections only from an
Access standalone node. This license entitles a standalone node to
control a single site of up to four physical channels.
DMR Trunking Express6
(TBAS302)
A base station with this license can accept connections from any Express
node/standalone node or Access standalone node. In single-site trunking
and fallback modes, this license entitles a standalone node to control a
single site of up to 6 physical channels.
DMR Trunking Express20
TBAS305
A base station with this license can accept connections from:
■An Express20 node
■An Express6 node
■A Standalone node
■A Standalone Access node
A base station with both a DMR Conventional license and a valid DMR
trunking license (such as Express or Access) can be configured to
operate in either mode. This enables a DMR Tier 2 base station to be
reconfigured and re-used in a DMR Tier 3 trunked network.
DMR Trunking Full
(TBAS300) A base station with this license can accept connections from any node/ standalone nodea.
DMR Central Voter
(TBAS306) This feature allows a base station to act as a DMR central voter.
DMR IP Networking Satellite
(TBAS307) This feature allows a DMR base station to be part of a channel group.
a. The base station itself can act as a DMR trunking controller, but with limited functionality. The base station is then said to be
a standalone node.
Licences are not lost or changed under software upgrades, downgrades, and changes of system
type. Older software may not display all licences.

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License Name Air Interface System Type
TBAS041 Analog Air Interface Analog Conventional
TBAS050 P25 Common Air Interface P25 Phase 1 Conventional
TBAS060 Digital Fixed Station Interface Analog & P25 Phase 1 Conventional
TBAS061 P25 AS-IP Central Voter Analog & P25 Phase 1 Conventional
TBAS071 P25 AS-IP IP Networking
Satellite
Analog & P25 Phase 1 Conventional
TBAS062 P25 AS-IP Simulcast Analog & P25 Phase 1 Conventional
TBAS301 Analog Air Interface Analog Conventional/MPT Trunked
TBAS304 DMR Conventional DMR Conventional
TBAS303 DMR Trunking Access DMR Trunked
TBAS302 DMR Trunking Express6 DMR Trunked
TBAS305 DMR Trunking Express20 DMR Trunked
TBAS300 DMR Trunking Full DMR Trunked
TBAS306 DMR Central Voter DMR Trunked/Conventional
TBAS307 DMR IP Networking Satellite DMR Trunked/Conventional

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1.5 Theory of Operation
The RF input is fed directly to the receiver board, while the RF output is
via the exciter and PA boards. The control board also receives signals from,
and sends signals to, the system interface, the Ethernet interface, and the
front interface (see Figure 1.1).
The Ethernet interface carries voice over IP and also allows maintainer
access via a web browser.
The control board carries out signal processing and has overall control of
the base station.
The control board converts information between analog and digital and
controls the maintainer’s access via the Ethernet interface. It performs the
air interface signal processing for digital DMR and P25 operation, gives the
base station an identity as a network element, and provides the physical
connections for the Ethernet and system interfaces.
Figure 1.1 Base station high-level diagram
RF Input
RF Output
Receiver
Board
PA
Board
Supply
Interface
Board
Exciter
Board
Front
Interface
Control
Board
System Input
and Output
Ethernet Interface
to Network

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1.5.1 Signal Paths
The following figures provide an overview of signal paths within the
control boards for both software applications:
Digital P25 signals from the receive RF interface pass through the digital
receiver and P25 modem to the control software in the control processor.
The control software passes the signal through the Ethernet interface to the
site controller, to the console gateway (conventional networks), or for a
satellite, to the central voter in a simulcast system.
Input to the Ethernet interface can be from the site controller, from the
console gateway (conventional networks), or from the central voter in a
simulcast system. These inputs are processed by the control processor and
passed through the P25 modem to the transmitter. If the base station is itself
a central voter, this input can also be a received signal, which is voted on
and sent back through the Ethernet interface to the site controller.
Input to the Ethernet interface is from the node controller. This input is
processed by the RISC and passed through the DMR modem to the
transmitter.
Analog FM signals from the receive RF interface pass through the digital
receiver and are converted to G.711 before being modulated and
retransmitted.
Figure 1.2 Control board signal paths

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1.5.2 Online and Offline Modes
The base station normally operates in Online mode, but you can put it into
Offline mode via its web interface.
Online Mode In Online mode, the base station is in service and performs its normal
functions of transmitting and receiving radio signals.
Offline Mode Offline mode allows a maintenance engineer to carry out tasks that can not
be done while the base station is in service, such as activating firmware or
running diagnostic tests.
1.5.3 Power Supply
The supply interface board accepts a nominal 13.8VDC input. The supply
interface is fused at 15A.
1.5.4 Front Panel Fans
The base station is equipped with three fans. Two fans are for the PA, and
the third is for the receiver, exciter and control boards. Front panel fans do
not operate continuously, but are switched on and off as needed. The fans
can also be temporarily enabled for test purposes via the web interface.
When the base station is powered up, the fans turn on until the main
software fully boots.