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 machinereadable 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.
350332, US15/387026 Div., US29/614639, US62/
713910, US62/729478, US62/730107, US62/767041,
US62/781642, US62/778238, US9794940 Div. no 1,
US20150085799, US20160044572, US 20160057051,
US20170142646, US20170055267 Div. no 2,
US20180006844, US640974, US 640977, US 698339,
US702666, US7758996, US8902804, US9107231,
US9504034, US9559967.
This product may also be made under license under one
or more of the following patents:
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.
Intellectual Property Rights
This product may be protected by one or more patents
or designs of Tait International Limited together with
their international equivalents, pending patent or
design applications, and registered trade marks:
NZ409837, NZ409838, NZ415277, NZ415278,
NZ508806, NZ530819, NZ534475, NZ547713,
NZ577009, NZ579051, NZ579364, NZ586889,
NZ610563, NZ615954, NZ700387, NZ708662,
NZ710766, NZ711325 , NZ726313, NZ733434,
NZ593887, AU2015215962, AU339127, AU 339391,
AU2016259281, AU2016902579, AU2017204526,
EU000915475-0001, EU000915475-0002,
GB1518031.8, GB1710543.8, GB2532863, US 14/
834609 Div. no 1, US 15/346518 Div.no 2, US15/
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.
WarningThis alert is used when there is a hazardous situation
which, if not avoided, could result in death or serious injury.
CautionThis alert is used when there is a hazardous situation which,
if not avoided, could result in minor or moderate injury.
NoticeThis alert is used to highlight information that is required to
ensure procedures are performed correctly. Incorrectly performed procedures 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.
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).
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.
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.
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.
1.1.1Base 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.
■ Supports an analog 600 Ohm connected repeater in an analog
conventional network with CTCSS or DCS subaudible signaling
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.
■ An integrated wiring solution is provided for the system control bus and
DC power connections to each module in the subrack.
■ Reciters (receiver/exciter modules) can be replaced without affecting
the operation of other reciters in the same subrack.
■ Rugged construction with generous heatsinks and fan-forced cooling
for continuous operation from –30°C to +60°C (–22°F to +140° F).
1
.
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
10DescriptionTB7300 Installation and Operation Manual
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.
Frequency
Identification
B bandB3 = 148MHz to 174 MHzx
H bandH3 = 470MHz to 520 MHz
Frequency Band and Sub-band40 W 50 W
✓
H5 = 400MHz to 470MHz
✓
WarningB3 and H5 bands are compliant with P25/AS-IP operation.
H3 band is not compliant with P25/AS-IP operation.
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 CTCSS
1
or 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).
12DescriptionTB7300 Installation and Operation Manual
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 standalone 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.
operation either trunked or conventional.
In analog operation it can operate as a conventional repeater with CTCSS
subaudible signaling
For more information, refer to the DMR System Manuals.
The TB7300 operates with a trunking node or in fallback
2
.
1
1. Private Line (PL).
2. Multi-site operation with voice-over-IP connection will be supported in a
later release.
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 application will be enabled.
For more detailed information, please see the base station help.
1.4.1Compatibility
The compatibility rules for P25/AS-IP and DMR/MPT are defined in the
following tables:
P25/AS-IP - Site Controller
AccessExpress6Full System
P25 Access Trunking
P25 Express6 Trunking
Operation
Base Station
P25 Trunking Operation
✓
✓✓
✓
xx
✓✓
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
DMR - Controller
FullExpress20Express6
x
Standalone
Access
Full
Express20
Express6
Base Station
Access
14DescriptionTB7300 Installation and Operation Manual
The following section lists each of the available feature licences for both
P25/AS-IP and DMR/MPT.
P25/AS-IP Feature Licences
Feature LicenceDescription
Analog Air Interface
(TBAS041)
P25 Common Air Interface
(TBAS050)
P25 DFSI
(TBAS060)
P25 AS-IP Central Voter
(TBAS061)
P25 AS-IP IP Networking
Satellite
(TBAS071)
P25 AS-IP Simulcast
(TBAS062)
20/25 kHz Unrestricted
Wideband
(TBAS083)
a. Not available with H3 band
b. Not needed for receive-only base stations.
a
a
A base station with this license can operate as a repeater in an analog
conventional network.
Allows a base station to transmit and receive P25 Phase 1 C4FM digital
voice transmissions.
Allows the base station to integrate with dispatch consoles supporting DFSI
(Digital Fixed Station Interface).
P25 and analog. This feature allows a base station to act as a central voter.
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.
This feature is required in base stations that have transmitters and belong
to a P25 Phase 1 simulcast or analog simulcast network
in the central voter of a simulcast channel.
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 base station with this license can operate as an MPT transceiver or an
analog conventional repeater.
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).
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.
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.
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)
DMR Central Voter
(TBAS306)
DMR IP Networking Satellite
(TBAS307)
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.
A base station with this license can accept connections from any node/
standalone node
This feature allows a base station to act as a DMR central voter.
This feature allows a DMR base station to be part of a channel group.
a
.
Licences are not lost or changed under software upgrades, downgrades, and changes of system
type. Older software may not display all licences.
16DescriptionTB7300 Installation and Operation Manual
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.
Figure 1.1Base station high-level diagram
RF Input
RF Output
System Input
Receiver
Board
Exciter
Board
PA
Board
Supply
Interface
Board
Control
Board
Front
Interface
and Output
Ethernet Interface
to Network
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.
18DescriptionTB7300 Installation and Operation Manual
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.
Figure 1.2Control board signal paths
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.
The base station normally operates in Online mode, but you can put it into
Offline mode via its web interface.
Online ModeIn Online mode, the base station is in service and performs its normal
functions of transmitting and receiving radio signals.
Offline ModeOffline 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.
1.5.3Power Supply
The supply interface board accepts a nominal 13.8VDC input. The supply
interface is fused at 15A.
1.5.4Front Panel Fans
The base station is equipped with three fans. Two fans are for the receiver,
exciter and control boards, and the third is for the PA. 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.
Configuring Fan
Control
The operation of the PA fans are configurable via the web interface; you
can specify the threshold temperature at which the fan will turn on, and set
the fan to operate only when the PA is transmitting.
NoticeThe TB7300 base station fans can’t be monitored remotely.
Malfunctioning fans may activate the PA and reciter temperature
alarms, depending on the ambient temperature and duty cycle of the
transmitter.
20DescriptionTB7300 Installation and Operation Manual
This chapter provides general information on safety precautions for
operating the base station.
2.1Personal Safety
2.1.1Explosive Environments
Warning
caps or in an explosive atmosphere. Operating the equipment in
these environments is a major safety hazard.
2.1.2High Temperatures
Take care when handling a base station that has been recently operated.
Under extreme operating conditions (+140°F [+60°C] ambient air
temperature) or high duty cycles, the external surfaces of the base station
can reach temperatures of up to +176°F (+80°C).
2.1.3LED Safety (EN60825-1)
This equipment contains Class 1 LED Products.
Do not operate the equipment near electrical blasting
2.1.4Proximity to RF Transmissions / A proximité des émissions RF
To comply with the RF Field Limits for Devices Used by the General
a
Public for (Uncontrolled Environment)
, a safe separation distance of at
least 12 feet (3.6 metres) from the antenna system should be maintained.
This figure is calculated for a typical installation, employing one 50W
base station transmitter. Other configurations, including installations at
multi-transmitter sites, must be installed so that they comply with the
relevant RF exposure standards.
a. Reference Standards
Health Canada’s Safety Code 6: Limits of Human Exposure to
Radiofrequency Electromagnetic Energy in the Frequency Range from
3kHz to 300GHz
USA Federal Communications Commission OET bulletin 65
(47CFR 1.1310)
IEEE C95.1 2005: Standard for Safety Levels with Respect to Human
Exposure to Radio Frequency Electromagnetic Fields, 3kHz to
300GHz
Pour respecter les limites imposées au champ RF au niveau des
équipements utilisés par le grand public (environnement non contrôlé)
a
une distance de séparation de sécurité d’au moins 3.6 mètres du bloc
d’antenne devrait être observée.
,
Ce nombre est calculé pour une installation typique, ayant un émetteur de
station de base de 50W. D’autres configurations, incluant les installations
ayant des sites de plusieurs émetteurs, doivent être installées de façon à se
conformer aux normes pertinentes des expositions RF.
a. Normes de référence
Code de sécurité 6 de Santé Canada: Limites d'exposition humaine à l’énergie
électromagnétique radioélectrique dans la gamme de
fréquences de 3kHz à 300GHz
Commission fédérale des communications (FCC) des Etats Unis d’Amérique bulletin OET numéro 65 (47CFR 1.1310)
IEEE C95.1 2005: Norme pour les niveaux de sécurité compatibles avec l'exposi-
tion des personnes aux champs électromagnétiques de
radiofréquence 3kHz à 300GHz
22General Safety and Regulatory InformationTB7300 Installation and Operation Manual
The equipment should be installed and serviced only by qualified
personnel.
2.2.2Preventing Damage to the PA
The base station has been designed to operate safely under a wide range of
antenna loading conditions. Transmitting into a low VSWR will maximize
the power delivered to the antenna.
NoticeDo not remove the load from the TB7300 while it is transmitting.
Load transients (switching or removing the load) can damage the PA output
stage. See “Connecting RF” on page 63 for recommendations.
2.2.3ESD Precautions
NoticeThis equipment contains devices which are susceptible to
damage from static charges. You must handle these devices carefully
and according to the procedures described in the manufacturers’ data
books.
We recommend you purchase an antistatic bench kit from a reputable
manufacturer and install and test it according to the manufacturer’s
instructions. Figure 2.1 shows a typical antistatic bench set-up.
You can obtain further information on antistatic precautions and the
dangers of electrostatic discharge (ESD) from standards such as ANSI/
ESD S20.20-1999 or BS EN 100015-4 1994.
Figure 2.1Typical antistatic bench set-up
common point ground
(building ground or
mains ground)
The operating temperature range of the equipment is –30°C to +60°C
(–22°F to +140°F) ambient temperature. Ambient temperature is defined
as the temperature of the air at the intake to the cooling fans.
2.3.2Humidity
The humidity should not exceed 95% relative humidity through the
specified operating temperature range.
2.3.3Dust and Dirt
For uncontrolled environments, the level of airborne particulates must not
exceed 100µg/m
3
.
2.4Regulatory Information
2.4.1Distress Frequencies
The 406 to 406.1MHz frequency range is reserved worldwide for use by
Distress Beacons. DO NOT program transmitters to operate in this
frequency range.
2.4.2Compliance Standards
This equipment has been tested and approved to various national and
international standards. Refer to the latest issue of the Specifications
Manual for a complete list of these standards (MBD-00002-11).
2.4.3Unauthorized Modifications
Any modifications you make to this equipment not authorized by Tait may
invalidate your compliance authority’s approval to operate the equipment.
The manufacturer is not responsible for any radio or TV interference
caused by unauthorized modifications to this equipment. Such
modifications could void the user’s authority to operate the equipment.
24General Safety and Regulatory InformationTB7300 Installation and Operation Manual
2.4.4Health, Safety and Electromagnetic Compatibility in Europe
In the European Community, radio and telecommunications equipment is
regulated by Directive 2014/53/EU. The requirements of this directive
include protection of health and safety of users, as well as electromagnetic
compatibility.
Intended Purpose
of Product
Declaration of
Conformity
This product is a radio transceiver. It is intended for radio communications
in the Private Mobile Radio (PMR) or Public Access Mobile Radio
(PAMR) services, to be used in all member states of the European Union
(EU) and states within the European Economic Area (EEA). This product
can be programmed to transmit on frequencies that are not harmonised
throughout the EU/EEA, and will require a license to operate in each
member state.
You can download the formal Declaration of Conformity from
www.taitradio.com/eudoc.
2.5Device and Network Security
If this radio network equipment is used for mission-critical applications, it
is important to be able to ensure security and continuity of operation. For
IP-network-connected equipment, it is also important to ensure that this
equipment is not a means of compromising other equipment in the network.
All network elements should be physically secured, where possible. This
includes the use of locked cabinets and locked rooms. Seals on connectors
can also provide a visual indication of unauthorized tampering.
Tait recommends that all network and audio connectors should be sealed
with a stick-on type of seal. The seal should reveal if any of the connectors
have been unplugged, or if any unauthorized equipment has been plugged
in.
The seals should be difficult to remove without breaking, and should bridge
between the cable and equipment side (plug and socket) of the connection.
Seals should cover any unused network or audio sockets. This includes the
Ethernet connector on any adaptor front panels, any spare switch ports, and
the console port on the router and switch.
The seals should be difficult to reproduce. A sticker initialed or signed by
the technician should satisfy this.
Seals must be replaced if they need to be disturbed during maintenance.
The indicator LEDs on the front panel are shown in Figure 3.1 below.
Figure 3.1LEDs on the front panel
b
power LED
b
alarm LED
c
Power LEDThe green power LED is lit when power is supplied to the base station.
d
Alarm LEDThe red alarm LED flashes when an alarm has been generated by any of the
e
Receive LEDThe amber receive LED indicates whether the base station is receiving a
f
base station modules. It will continue to flash until the alarm is canceled or
the fault is fixed. Only alarms enabled using the web interface cause this
LED to flash.
LEDDescription
FlashingOne or more faults are present.
On (steady)A base station is in Offline mode, and no faults are present.
OffA base station is in Online mode, and no faults are present.
valid RF signal on one or both logical channels.
c
d
receive LED
d
transmit LED
e
e
LEDDescription
On (steady)A base station is receiving a valid RF signal.
OffA base station is not receiving a valid RF signal.
Transmit LEDThe amber transmit LED is lit while the transmitter is transmitting.
g
26OperationTB7300 Installation and Operation Manual