0. NEXEDGE Technical Overview
Kenwood Presentation
NEXEDGE Technical Overview
Kenwood Electronics UK
Copyright © 2011 JVC KENWOOD Corporation. All rights reserved.

1. Presentation Agenda Introduction - Digital Radio Standards NEXEDGE
FDMA versus TDMA
Product Information
NEXEDGE Operating Modes
NEXEDGE Features
NEXEDGE - TETRA Comparison
NEXEDGE Migration Path
Programming
Applications
Web Resources
Summary

2. 1 1.
Introduction - Digital Radio Standards

3. Introduction – Digital Radio Standards
Digital radio systems can operate using different channel access methods
TDMA - Time Division Multiple Access;
FDMA - Frequency Division Multiple Access;
FHMA - Frequency Hopping Multiple Access;
CDMA - Code Division Multiple Access;
Common features
spectrally efficient radio systems;
ITU-R and/or ETSI approval.
Overview

4. Introduction – Digital Radio Standards - TDMA
TDMA - Time Division Multiple Access;
TETRA - primary adopted for Europe and around world
ITU-R Working Party and ETSI
π/4 DQPSK modulation
4 slot TDMA / 25 KHz channel mask
Trunking
Manufacturer: MOTOROLA, EADS etc.
DIMRS - adopted in Canada
ITU-R Working Party 8A.
16 QAM modulation
6 slot TDMA / 25 KHz channel mask
Manufacturer – MOTOROLA (IDEN)
TDMA

5. Introduction – Digital Radio Standards - TDMA
TDMA - Time Division Multiple Access;
IDRA – adopted in Japan
ITU-R Working Party 8A
16 QAM modulation (different vocoder)
6 slot TDMA / 25 KHz channel mask
Trunking
MOTOTRBO - North America and Europe
ETSI DMR standards
4FSK - modulation
2 slot TDMA / 12.5 channel mask

6. Introduction – Digital Radio Standards - FDMA
FDMA - Frequency Division Multiple Access;
Project 25 - primary adopted for North America
ITU-R Working Party 8A.
C4FM - constant envelope modulation / phase1
QPSK – modulation / phase 2
12.5 / 6.25 KHz channel mask
Trunked and conventional
TETRAPOL - adopted in Europe (France) and around the world
constant-envelope modulation technique
10 KHz channel mask
Manufacturer – EADS

7. Introduction – Digital Radio Standards - FDMA
FDMA - Frequency Division Multiple Access;
EDACS – adopted by Swedish Administration and
ITU-R Working Party 8A
constant-envelope modulation technique
25 / 12.5 KHz channel mask
Manufacturer M/A-COM, Inc.
IDAS - adopted in North America and Europe
dPMR ETSI standard
4 level FSK - constant envelope modulation
based on NXDN – CAI (Common Air Interface)
6.25 KHz channel mask (digital)
manufacturer - ICOM
NEXEDGE

8. 2 2.
NEXEDGE ™

9. NEXEDGE - NXDN
Is a trademark name of KENWOOD Corporation and ICOM Incorporated
NXDN ™ refers to the Digital Air Interface protocol used by both KENWOOD and ICOM
NXDN ™ Forum has been established on 7th September 2008, in USA. Infrastructure and radio manufacturers have joined the forum.
Purpose of NXDN Forum is promoting the NXDN ™ protocol and contributing to the development of land mobile radio;
NXDN™

10. NEXEDGE - NXDN Members of NXDN ™ Forum Aeroflex Wichita Inc.
Altonika Ltd.
Arinc
Anritsu Company
Avtec Inc.
The Boeing Company
Catalyst Communications Technologies, Inc.
CML Microsystems Plc
Connect Systems Inc.
Daniels Electronics Ltd.
Etherstack.
EXACOM, Inc.
General Dynamics SATCOM Technologies
GME/Standard Communications Pty. Ltd.
Hoag Electronics, Inc.
Hytera Communications Corp., Ltd.
Icom Incorporated
JVC KENWOOD Corporation
RF Technology Pty Ltd.
Raven Electronics Corporation
Ritron Inc.
Swissphone Telecom AG
Telex Radio Dispatch Group
Trident Micro Systems
Twisted Pair Solutions
WAVECOM ELEKTRONIK AG
Zetron, Inc.

11. NEXEDGE - Products NEXEDGE™
Is a trademark name of KENWOOD Corporation and a generic term used when refering to KENWOOD‘s Digital Communication System.
KENWOOD‘s Digital Communication System consist of:
NXR-700 / 800 Repeater / Base Stations
NX-200 / 300 Portables
NX-700 / 800 Mobiles
NXR-710 / 810 Repeater / Base Stations
NX-220 / 320 Portables
NX-720 / 820 Mobiles

12. NEXEDGE - Features Key Advantages Fully Digital
Data services in Analogue and Digital
Available in VHF and UHF
Ideal for Migration Analogue to Digital
Radio-to-Radio operation
Single Repeater operation
Single Site Trunking
Multi Site Trunking
Applications – Dispatchers, AVLS

13. NEXEDGE - Equipments Hi Tier Equipment Mobile : NX-700/800
Repeater / Controller : NXR-700/800
Portable : NX-200/300
KTI 4: Telephone interface

14. NEXEDGE - Equipments Mid Tier Equipment Mobile : NX-720/820
Portable : NX-220/320
KTI 3: LAN interface

15. What does digital means?
NEXEDGE – features
What does digital means?
Voice converted and transmitted in digital format!
Digital signalling and voice
Use of state-of-the-art AMBE +2 voice encoder/decoder
FDMA – Frequency Division Multiple Access
12.5kHz or 6.25kHz channel spacing
IP inter-site connectivity

16. NEXEDGE – Vocoder AMBE2+
Waveform vocoders
coder use sampling, quantisation and coding process
reproduce at the decoder the original speech samples on a sample by sample basis
low complexity;
good quality;
high bit rate (standard PCM 64 kbps).
Model based speech vocoders
coder use a parametric model to approximate short (10-40 ms) segments of speech and convert into a bit low stream.
the decoder converts this bit stream back into model parameters and then uses these parameters to synthesize the speech.
high complexity;
low bit rate (2kbps)

17. NEXEDGE – Speech Quality / Clarity
Vocoder - advantages
Speech Quality
Digital error correction technology improve the voice quality by compensating missing signal by AMBE +2 VOCODER
Clarity
Kenwood Sound (same concept as TK-x180 series)
Eliminate background noise by AMBE +2 VOCODER
Outperform the legacy VOCODERS
Natural Sounding Digital Voice (AMBE +2 VOCODER)
Natural human speech nuances accurately unlike early technologies,
such as TETRA (HSX – early 90’s) and P25(IMBE – 90’s)

18. NEXEDGE – Quality of Service
Vocoder - comparison
AMBE+2 TM - Most Advanced VOCODER Technology in PMR Today
Enhanced Half-rate 3600 bps
MOS (Mean Opinion Score)
Measure of voice varying BER & VOCODER rates
3.5 MOS: Average Digital Cellular (VOCODER to VOCODER lab results)
Source: DVSI Inc, USA
P25 (IMBE): Full Rate
NXDNTM (AMBE+2): Half Rate

19. NEXEDGE – NXDN modulation
Modulation type: 4FSK (4 levels Frequency Shift Keying).
frequency modulation;
constant envelope modulation.
FSK symbol mapping
Bit 1 Bit 0 Symbol 4FSK Deviation Hz Hz Hz Hz

20. NEXEDGE – Performance comparison
Analogue
Audio Quality
Signal
Digital
Weak
Strong
Min Quality
12dB SINAD (Analogue)
3% BER (Digital)
Better performance at fringe area with high audio quality
Digital error correction technology improve the performance at the fringe area
by compensating missing signal
Enables wider coverage than FM analog

21. NEXEDGE – Coverage Coverage Better sensitivity
6.25kHz bandwidth improve the sensitivity of the radios
Wider coverage than DMR at same output power
Output power flexibility
Can perform the same output power with FM analog radio. Coverage will easily outperform TETRA.
No distance limit for communication unlike TDMA solution

22. 3 3.
FDMA vs TDMA overview

23. FDMA and TDMA FDMA - TDMA FDMA (Frequency Division Multiple Access)
TDMA (Time Division Multiple Access)
Time
Frequency Bandwidth
Time Slot
Two Channels
Two Slot

24. TDMA – Time Division Multiple Access
FDMA and TDMA
TDMA – Time Division Multiple Access
Positive
Power consumption lower compared to FM analog
Full duplex possibility
Negative
Communication distance is theoretically restricted on Protocol
Infrastructure required for full feature efficiency
Cannot physically divide 12.5kHz channel into 2 channel (need to share 12.5kHz)
Time
Time Slot

25. FDMA – Frequency Division Multiple Access
FDMA and TDMA
FDMA – Frequency Division Multiple Access
Positive
No limitation on communication distance
Physically locatable 6.25kHz channel
Easy Migration from Legacy FM system
Negative
Frequency efficiency is 1 to 1
Frequency Bandwidth
Two Channels
Time

26. TDMA Spectrum Efficiency
TDMA – Time Division Multiple Access
TDMA 1 voice CH
12.5 kHz “efficiency”
Still occupies 12.5 kHz channel band width
12.5 kHz
12.5 kHz channel emission mask
TDMA 2 voice CH
Equivalent with 6.25 kHz “efficiency”
Time

27. FDMA Spectrum Efficiency
FDMA – Frequency Division Multiple Access
12.5 kHz
6.25 kHz
12.5 kHz channel emission mask
FDMA 1 voice CH
12.5 KHz “efficiency”
6.25 KHz “efficiency”
6.25 kHz x 2
Can allocate another channel within 12.5 kHz channel emission mask if offset the Center Frequency
Improve Interference resistance

28. 4 4.
Product Information

29. Product Information - NX-200/300 Portables
5W / 512 CH-GID / 128 Zones
DTMF Keypad Models
Analogue Conventional Zones
LTR Zones
Digital Conventional Zones
Digital Trunking Zone
Over-the-Air Alias
Dual Priority Scan (FM/Digital CONV.)
Conventional Single/Multi-Zone Scan
16-Position Mechanical Selector
On/Off Volume Control
Large Dot Matrix LCD Display
14 Character Alphanumeric Aliases
Status LED
6 Front PF & Menu Keys

30. Product Information - NX-200/300 Portables
2 Side PF Keys
Emergency/AUX Key
QT/DQT, 2-Tone, DTMF (Analogue)
FleetSync®/ II (Analogue )
5-Tone
MDC 1200
MPT 1327
Over the air programming (OTAP)
Emergency Features (Analogue & Digital)
Inversion Scrambler Built-in (Analogue)
Digital Scrambler (Included)
Encryption / ANI Board Control (Analogue)
Easy Option Port
NX 200 / 300 portables

31. Product Information - NX-200/300 Portables
VGS-1 Voice Guide/Storage Option (Ana. & Digital)
Weather-Sealed ACC Connector
KMC-47GPS Speaker Mic Option (Ana. & Digital)
MIL-Spec Speaker Mic Option
MIL-STD-810 & IP 67Environments
AES / DES Encryption
NX-200E (keypad + display) MHz
NX-200E3 (display) MHz
NX-200SE MHz
NX-300E (keypad + display) MHz
NX-300E4 (display) MHz
NX-300SE MHz

32. Product Information - NX-220/320 Portables
5W / 260 CH-GID / 128 Zones for E and E2 (display)
5W / 64 CH-GID / 4 Zones for E3
DTMF Keypad Models (E type)
Analogue Conventional Zones
LTR Zones
Digital Conventional Zones
Digital Trunking Zone
Over-the-Air Alias
Dual Priority Scan (FM/Digital CONV.)
Conventional Single/Multi-Zone Scan
16-Position Mechanical Selector
On/Off Volume Control
Over the air programming
8 digit display alphanumeric
Status LED
6 Front PF & Menu Keys
2 Side PF Keys

33. Product Information - NX-220/320 Portables
Emergency/AUX Key
QT/DQT, 2-Tone, DTMF (Analogue)
FleetSync®/ II (Analogue )
5 – Tone signaling (Analogue)
MDC 1200
MPT 1327 (future option)
Emergency Features (Analogue & Digital)
Inversion Scrambler Built-in (Analogue)
Digital Scrambler (Included)
2 pin Option Port
KMC- 48GPS Speaker Mic Option (Ana. & Digital)
MIL-Spec Speaker Mic Option
MIL-STD-810 & IP 54/55 Environments
NX-220E (keypad + display) MHz
NX-220E2 ( display) MHz
NX-200E3 (simple) MHz
NX-300E (keypad + display) MHz
NX-300E2 (display) MHz
NX-300E3 (simple) MHz
NX 220 / 320 portables

34. Product Information - NX-700/800 Mobiles
1-25W Models (180-Series Platform)
512 CH-GID / 128 Zones
Dash & Remote Mount
Analogue Conventional Zones
LTR Zones
MPT 1327
Digital Conventional Zones
Digital Trunking Zone
Over-the-Air Alias
Dual Priority Scan (FM/Digital CONV.)
Conventional Single/Multi-Zone Scan
Dot Matrix LCD Display
14 Character Alphanumeric Aliases
Status LED
6 PF / 4 Selector Keys
Emergency/AUX Key
DTMF Mic Option
QT/DQT, 2-Tone, DTMF (Analogue)
NX 700 / 800 Mobiles

35. Product Information - NX-700/800 Mobiles
FleetSync®/ II (Analogue)
Emergency Features (Analogue & Digital)
Inversion Scrambler Built-in (Analogue)
Digital Scrambler (Included)
Encryption / ANI Board Control (Analogue)
Easy Option Port
VGS-1 Voice Guide/Storage Option (Analogue & Digital)
Internal GPS Option (Analogue & Digital)
MIL-Spec Mobile Mic
MIL-STD-810 & IP54/55 Environments
AES / DES Encryption
NX-700E 25W MHz
NX-700HK 50W MHz
NX-800E 25W MHz
NX-800HK 45W MHz

36. Product Information - NX-720(G)/820(G) Mobiles
25 W ( MHz) / 25 W ( MHz) Models
260 CH-GID / 128 Zones
10 Character Alphanumeric Aliases
Backlit LCD & Keys
4 Up/Down Selectors
6 Front PF Keys
Emergency/AUX Key
4W Speaker Audio
Zone/CH Number Voice Announcement
DB-15 Accessory Connector
6 Programmable AUX I/Os
MIL-STD-810 C/D/E/F/G and IP54 Enviroments
PC Serial Interface
Built-in GPS Receiver Models Available
(Optional KRA-40G GPS Active Antenna
required for GPS functions)
NX-720(G)/820(G) Mobiles

37. Product Information - NX-720(G)/820(G) Mobiles
FleetSync®/ II (Analogue), 5 Tone, MDC 1200, DTMF
Emergency Features (Analogue & Digital)
Inversion Scrambler Built-in (Analogue)
Digital Scrambler (Included)
64 Radio Access Numbers (RAN)
Individual & Group Selective Call
Mixed FM/Digital Operation
Conventional IP Networks
Site Roaming
NXDN trunk mode (single and multisite)
NX-720E / GE 25W MHz
NX-720HK /HGK 50W MHz *
NX-820E /GE 25W MHz
NX-820HK /HGK 45W MHz *
* Non EU market

38. Product Information - NXR-700/800 Base/Repeater
NXR 700 / 800 Repeaters
Integrated transceiver & Digital logic controller with 25W (EU version)
Repeat, Duplex , Simplex or RF link Operation
30 Channel Operation- Scans FM, Digital & Mixed Conventional channels
Analogue Conventional Mode (Included):
16 QT/DQT Repeater Controller built-in (TOT, Hang timer, CW ID, etc)
Interface for external repeater panels/ LTR logic controllers
Digital Conventional Mode (Included)
16 RAN Digital Repeater Controller built-in (TOT, Hang timer, CW ID, etc)
Digital Trunking Mode (License Option)
Multi-Site Trunked IP Network Mode (License Option)
NXR-700 E MHz (sub – bands)
NXR-800 E MHz (sub- bands)

39. Product Information - NXR-700/800 Base/Repeater
NXR 700 / 800 Repeaters
Controls, Indicators & Interfaces
TX BNC
DB9: PC Program/Flash or System Mgr Modem
6.25 kHz NXDN High Stability Reference
REF Out (BNC; 6.25 kHz)
EXT REF IN (BNC; 6.25 kHz)
Fuse
DC PWR
FAN
INT SPKR
2-DIGIT LED: CTL CH (TRK), CH# (Base stn)
LEDs: CTRL CH OCXO, BUSY, TX, PWR
ON/OFF Volume Knob
RJ-11: MIC, Encryption key load
6 PF Keys
Test Points / Ext Speaker
DB25 Logic Controller & Remote Interface
NXR FRAME SYNC
(RJ-11, RS-485)
NXR Network Interface
(RJ-45, Ethernet IEEE 802.3)
RX BNC
RS-232 Null modem

40. Product Information - NXR-710/810 Base/Repeater
NXR 710 / 810 Repeaters
Integrated transceiver & Digital logic controller with 50 / 40 W (EU version)
Repeat, Duplex , Simplex or RF link Operation
30 Channel Operation- Scans FM, Digital & Mixed Conventional channels
Analogue Conventional Mode (Included):
16 QT/DQT Repeater Controller built-in (TOT, Hang timer, CW ID, etc)
Interface for external repeater panels
Digital Conventional Mode (Included)
16 RAN Digital Repeater Controller built-in (TOT, Hang timer, CW ID, etc)
NXR-710 E MHz (Full bandwidth)
NXR-810 E MHz (Full bandwidth)

41. 5 5.
NEXEDGE Operating Modes

42. NEXEDGE Operating Modes
Simplex – Conventional Analog
Radio to Radio – Analogue Mode No need for separate base station!
Analogue
Analogue
Analogue Mode
Analogue
Individual Call
Group Call
Signalling
Analogue
Analogue
Analogue

43. NEXEDGE Operating Modes
Simplex – Conventional Digital
Radio to Radio – Digital Mode No need for separate base station!
Digital
Analog
Digital Mode
Individual Call
Group Call
Signalling
Digital
Digital
Digital
Digital

44. NEXEDGE Operating Modes
Simplex – Conventional Mixed
Radio to Radio – Mixed Mode
Analogue Transmission Start
Analogue
Analogue
Analogue
Mixed
Analogue
Analogue
Analogue

45. NEXEDGE Operating Modes
Simplex – Conventional Mixed
Radio to Radio – Mixed Mode
Digital Transmission Start
Digital
Mixed
Digital
Digital
Digital

46. NEXEDGE Operating Modes
Repeater – Conventional Analog
Repeater – Analogue Mode
Analogue
Analogue Transmission Start
Analogue
Analogue
Analogue
Analogue
Analogue

47. NEXEDGE Operating Modes
Repeater – Conventional Digital
Repeater – Digital Mode
Digital
Digital Transmission Start
Digital
Digital
Digital
Digital

48. NEXEDGE Operating Modes
Repeater – Conventional Mixed
Repeater – Mixed Mode
Analogue
Analogue Transmission Start
Analogue
Analogue
Analogue
Analogue
Analogue

49. NEXEDGE Operating Modes
Conventional IP Network
NXR 800
Digital
RAN = 11
Analog
NXR 700
Digital
RAN = 11
IP Connection
Digital
RAN = 11
NXR 700

50. NEXEDGE Operating Modes
Site Roaming – terminal voting (NXDN)

51. NEXEDGE Operating Modes
Site Roaming – terminal voting (NXDN)
Procedure
Network Failure at Primary and Secondary Repeater
Network Failure at Primary Repeater
Basic Procedure
Usually, the Primary repeater transits the synchronized signal to other repeaters.
Then, All repeaters transmits the Beacon signal at same timing.
If there are any problems at primary repeater with network, and When the Secondary repeater does not receive the synchronized signal from primary repeater three times,
The secondary repeater starts to transmit the synchronized signal to other repeater.
Before the secondary repeater starts to transmit the signal, all repeater transmits the Beacon signal each timing.
When Deselected repeaters does not receive the synchronized signal from Primary and secondary,
Deselected repeaters transmits the beacon signal each timing.

52. NEXEDGE Operating Modes
Receiver Voting – Digital mode (NXDN)

53. NEXEDGE Operating Modes
Digital Trunking
Single Site – 2 to 30 Channels IP
Combiner
Supports:
Individual Calls
Group Calls
Status calls
Data calls
Encryption

54. NEXEDGE Operating Modes
Digital Trunking – single site

55. NEXEDGE Operating Modes
Digital Trunking – Multi Site
Currently up to 48 sites
Individual Calls
Group Calls
Status calls
Data calls
Encryption
System Manager
(IP connection)
Router
Ethernet Switch
IP Connection
XYZ Trunking
Multi-Site Wide Area Coverage
Radio-Over-IP
LAN / WAN Integration
Scalable Expansion

56. NEXEDGE Operating Modes
Digital Trunking – Multi Site
XYZ Trunking
Multi-Site Wide Area Coverage
Radio-Over-IP
LAN / WAN Integration
Scalable Expansion

57. NEXEDGE Operating Modes - Summary
Radio-to-Radio
Analogue
Digital
Mixed
Repeater
Analogue
Digital
Mixed
IP conventional multisite
Analogue
Digital
Mixed
Trunking
Digital Single Site
Digital Multi Site

58. 6 6.
NEXEDGE Features

59. NEXEDGE – Conventional Features
Service
Radio to Radio
Repeater
Group Call
Yes
Individual Call
Encryption
Data Call (Group/Individual)
Data with Voice
Transparent Data
Status Call
Emergency Call & Alert
Remote Stun / Revive
Late Entry
Mixed Mode operation (12.5kHz)
Analog 25.0kHz
Analog 20.0kHz
Analog 12.5kHz
Digital 12.5kHz
Digital 6.25kHz
FleetSync signaling
Lone Worker Operation

60. NEXEDGE – Trunk Features
Trunking
Service
Single Site
Multi Site
Group Call
Yes
Individual Call
Encryption
Data Call (Group/Individual)
Data with Voice on Traffic channel
Transparent Data
Status Call
Emergency Call & Alert
Remote Stun / Revive
Priority Monitor
Late Entry
Unit ID Registration -
Group ID Registration
Remote Group Add
ESN Authentication
Roaming
N/A
Site Trunking
Fail Soft
Lone Worker Operation

61. NEXEDGE - Security Features
Casual Eavesdropping
Analog Inversion Scrambler Built-in (FM)
NXDNTM Digital Air Protocol – “Inherent level of security”
More Sophisticated Adversaries
Aftermarket Encryption / ANI Board Support (FM)
NXDNTM Digital Voice Scrambler (NXDNTM)
Kenwood Hi Secure Encryption Module Options
Sensitive Information: Commerce
Operations
Facilities
Assets
Precious Cargo
Personal Info Customer Info
Secure Information:
Competitiveness
Security & Safety
Liability & Risk Exposure
Law Enforcement OPS
Critical Infrastructure
Home Office
Competitors, news media, unions, activists, hackers, criminals, terrorists, etc

62. NEXEDGE - Security Features
Authentication
HW key (unique per system)
Activation file, System Key File
Air Interface Encryption
Air Interface Key Management Mechanism
Enable / Disable
Stun,
Revive,
Kill
End-to-End Encryption (E2EE)

63. NEXEDGE - Security Features
SCM
The Secure Cryptographic Module (SCM) is a hardware cryptographic module developed by Kenwood Corporation
Developed for:
TK-5XX0 series FM/P25 digital two way radios
NX/NXR- series NEXEDGE digital two way radios.
This Security Policy was prepared as one of the requirements of FIPS

64. NEXEDGE - AES & DES SCM Module
KWD-AE21
AES (Encryption key = 256bit)
DES (Encryption key = 56bit )
KWD-DE21
DES (Encryption key = 56bit)
KPG-151AE with USB dongle
KPG-111D
Need permission of Ministry of Trade to export

65. 7 7.
NEXEDGE - TETRA Comparison

66. NEXEDGE - TETRA Comparison
TETRA (Terrestrial Trunked Radio) is an open standard for digital mobile radio communication defined by ETSI (European Telecommunications Standards Institute).
Originally conceived and developed for use by European Union government and public safety agencies. Later adopted as the worldwide “de facto” standard, except North America, for digital radio communications systems.
Provides a high-end solution for small private systems up to large public networks, while preserving characteristics and advantages of private land mobile radio systems, such as fast call set-up, group calls, and direct mode communication (talkaround).
What is TETRA?

67. NEXEDGE - TETRA Comparison
TETRA General Concepts
TDMA (Time Division Multiple Access)
Each RF carrier (radio channel) is divided into 4 x timeslots within a 25 KHz
channel
The transmission rate is 7.2 Kbps per timeslot.
Modulation: π/4 DQPSK
Vocoder: Adaptive Code Excited Linear Prediction (ACELP)

68. NEXEDGE - TETRA Comparison
What is NEXEDGE ?
Is a trademark name of KENWOOD Corporation and a generic term used
when refering to KENWOOD‘s Digital Communication System.
NEXEDGE technology is based on NXDN Common Air Interface (CAI).
NXDN is a trademark name of KENWOOD Corporation and ICOM
Incorporated. The NXDN protocol is an open proprietary protocol
KENWOOD‘s Digital Communication System consist of:
NXR-700 / 800 Repeater / Base Stations
NX-200 / 300 High Tier Portables
NX-700 / 800 High Tier Mobiles
NXR-710 / 810 Repeater / Base Stations
NX-720 / 820 Mid Tier Mobiles
NX-220 / 320 Mid Tier Portables

69. NEXEDGE - TETRA Comparison
NEXEDGE General Concepts
FDMA (Frequency Division Multiple Access)
Each RF carrier is handling a radio channel within 12.5 KHz or 6.25 KHz bandwidth
The transmission rate is KHz and KHz
Modulation: 4 FSK
Vocoder: Advanced Multiband Excitation 2 plus (AMBE 2+)

70. NEXEDGE - TETRA Comparison
Spectrum Efficiency
Bandwidth 200kHz
GSM
(half-rate)
PMR 25 kHz
NEXEDGE 6.25 kHz
200 kHz channelling
8 channels
16 channels
25 kHz channelling
8 channels / 200 kHz
12.5 kHz channelling
16 channels / 200 kHz
4 channels / carrier
32 channels / 200 kHz
NEXEDGE 12.5 kHz
25 kHz channelling
4 timeslots / carrier
32 channels / 200 kHz
TETRA

71. NEXEDGE - TETRA Comparison
Coverage
 Parameter
TETRA
NEXEDGE
RF power portable
1-3 W
5 W
RF power mobile
2-10 W
25 W
Static sensitivity
- 112 dBm
- 120 dBm
Dynamic
- 103 dBm
- 114 dBm
Communication distance*
TETRA : Suburb, 10W  11km
TETRA : Suburb, 1W  5.7km
Less than 1/2 of UHF NEXEDGE’s Communication distance
Almost 1/4 of VHF NEXEDGE’s Communication distance
Number of Base station*
Need 4-6 (16-18) TETRA sites to cover the area which
NEXEDGE can cover by 1site in UHF (VHF)

72. 8 8.
NEXEDGE Migration Path

73. NEXEDGE – Migration Analogue/Digital
Repeater
Analog → Digital 12.5kHz or 6.25kHz single site
25W
25W
Analogue Repeater
and Controller Equipment
NXR 710 or 810
DC Power Supply
DC Power Supply
This is an example of migration from an analogue system to the NEXEDGE digital system.
In this slide shows a 12.5 digital system image.
If a customer wants to keep the current their equipment to new system, the most of equipment can carry over to the digital system.
We have launched only for K-type which is 5watts output power, then it required an RF amplifier each channel.
Also, We have to suggest the reference oscillator when apply a 6.25kHz operation. The reference oscillator can be shared with other channel via link cable, it is not necessary to instal each channel.

74. NEXEDGE – Migration Analogue/Digital
Trunking
Analog → Digital NEXEDGE 12.5kHz or 6.25kHz single site
DC Power Supply
Combiner
25W
OCXO
(Option)
Analogue Repeater
and Controller Equipment
NXR 700 or 800
OCXO is an option for high stability oscllator.

75. NEXEDGE – Migration Analogue/Digital
MPT Trunking
(MPT → Digital NEXEDGE)
MPT Controller
Analogue Repeater
Combiner
25W
OCXO
(Option)
NXR 700 or 800
Control channel
Digital Control channel
Traffic CH
Sharing
OCXO is an option for high stability oscillator. 75 75

76. NEXEDGE Migration from current MPT System
MPT – NEXEDGE - migration

77. 9 9.
Programming

78. Programming NEXEDGE - software
KPG-111D NX-200/300/700/800 Program Software
Required for all modes
Trunked mode: Requires system key file (*.SKF) created by KPG-110SM
KPG-109D NXR-700/800 Program Software
Conventional configuration
Trunking Frequencies
Programs basic Base (Simplex/Duplex) or Repeat operations
Configures multiple NXR for trunked site CC & TC’s
KPG-110SM System Manager Software
Required for trunked sites and networks (not used for conventional)
Hardware Key and Activation File are required (required to run program)
.NET 2.xx installation is required
System Key file creation
Programs NXR trunking parameters, subscriber privileging, multi-site network parameters
Performs NXR and network diagnostics, downloads call logs / event history

79. Programming NEXEDGE - software KPG-141D NX-220/320 Program Software
Required for all modes
Trunked mode: Requires system key file (*.SKF) created by KPG-110SM
KPG-129D NXR-710/810 Program Software
Conventional configuration
KPG-143D NX-200/300/700/800
MPT trunk configuration

80. Programming NEXEDGE - software NXR-700/800 Repeater KPG-109D KPG-110SM
Mobile
KPG-111D
NX-200/300
Portable
NX-220/320
KPG-141D
Trunking
Conventional
Copyright © 2010 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval.

81. 10
10.
Applications

82. Applications – AVL & DISPATCH SOFTWARE
KAS 10
AVL & Dispatch application (IP protocol - trunking)

83. Applications – AVL & DISPATCH SOFTWARE
KAS 10
AVL & Dispatch separate window
Google Earth Maps
Scanned Map (Raster format)
JPEG (.jpg, .jpeg, .jpe, .jfif);
BMP (.bmp);
WMF (.wmf);
EMF (.emf);
Up to 10 map available;
2560 x 1600 pixels.
NEXEDGETM , FleetSync
IP protocol and PC protocol interface,
Optimized for Windows 7

84. Applications – AVL & DISPATCH SOFTWARE
KAS 10
Microsoft MapPoint 2006/2009/2010/ Maps (optional).
Text Message:
NEXEDGE:
100 characters – Short Text Message;
4090 characters – Long Text Message;
FLEETSYNC / 5-Tone:
48 characters – Short Text Message;
1024 characters – Long Text Message;
Special functions:
Stun, Revive, Kill,
Remote Monitor,
Remote regrouping (trunk)
Voice record functions;

85. Applications - Wireless Image System KAS 11
System Overview
NEXEDGE Digital System
IP NETWORK
CCTV Camera
Image Encoder Unit
Capture still picture image
Image compression
Send image via NEXEDGE system
Image expansion
Image Viewer Software 85

86. Applications - Wireless Image System KAS 11
NXDN Conventional & Trunking Compatible
12.5 & 6.25kHz Bandwidths
IP NETWORK
Image Encoder Unit
CCTV Camera
NEXEDGE Digital System
Image Encoder Unit
Image Viewer Software
KAS-11
Windows® Compatible
1 / 4 / 16 Split Image Display
Image Sizing
History Log
Bitmap Image Export
Password Protected Access
KVT-11
Video Input (1 Channel, BNC)
NTSC/PAL Composite Signal
Still Picture Compression byMPEG-4AVC/H.264
4 Status LED’s 86

87. Applications - Over the Air Programming (OTAP)
OTAP features
Re-program some FPU data to Radio via Air (without Cable)
Re-program a part of the data that is changed (Differential)

88. Applications - Over the Air Programming (OTAP)
OTAP operating mode
OTAP Manager
Serial Cable
Over the Air
Over the Air
Read
Base Unit 1
FPU DATA
Base Unit 2
FPU
Base Unit 3
OTAP Manager reads FPU data stored in PC
Manage or Send OTAP data via base unit
OTAP Data can be sent through Conventional / Single site /Multi Site or sent direct (NXDN Long Data CAI)
Subscribers receive / store / update the data

89. Applications – Repeater Monitoring (KPG-149RM)
Repeater / Site Monitoring

90. Applications – Repeater Monitoring (KPG-149RM)
Repeater / Site Monitoring
Real Time Equipment Fail Monitor for Conventional and Trunking
Connection alert
RX alert
TX alert
Temperature alert
Power alert
Fan alert
Alert Tone and Color Indicate Notification
Notification
Logging

91. Applications – Trunk System Manager (KPG-110SM)
System Manager - Trunking

92. Applications – Trunk System Manager (KPG-110SM)
System Manager – Main functions
A. Settings
Creation of System Key file
Systems settings
IP Address assignment
Single site, multi site configuration
Site Information
Channels (Control/ Traffic)
ID Service Class settings
Fleet Information
GID’s and UID’s
IP console
Telephone interface
Firmware update
FPU data file read / write

93. Applications – Trunk System Manager (KPG-110SM)
System Manager – Main functions
B. Monitoring
System Overview IP Network
System Overview hardware
Channel state
Channel load
Communication log
System log
Statistics

94. Applications – IP and PC Protocol
IP Interface protocol can be released under Confidential Agreement.
NXR - 700/800 – Trunk IP protocol
NXR – 710/810 – IP Conventional protocol
PC Serial Interface Protocol V2.00 or later version supports digital operation
NX - 700/800/200/300
NX – 720/820/220/320
PC Interface protocol can be released under Confidential Agreement.
This is an example of migration from an analogue system to the NEXEDGE digital system.
In this slide shows a 12.5 digital system image.
If a customer wants to keep the current their equipment to new system, the most of equipment can carry over to the digital system.
We have launched only for K-type which is 5watts output power, then it required an RF amplifier each channel.
Also, We have to suggest the reference oscillator when apply a 6.25kHz operation. The reference oscillator can be shared with other channel via link cable, it is not necessary to install each channel.

95. 11
11.
Web resources

96. NEXEDGE Web resources Web resources NEXEDGE Home Page
NXDN forum
dPMR MoU

97. 12
12.
Summary

98. NEXEDGE – Summary Summary Digital signalling and voice
Use of state-of-the-art AMBE +2 voice encoder/decoder
FDMA – Frequency Division Multiple Access
12.5kHz and 6.25kHz channel spacing
IP intersite connectivity

99. NEXEDGE – Summary Summary Fully Digital Available in VHF and UHF
Ideal for Migration Analogue to Digital
Radio-to-Radio
Single Repeater
Single Site Trunking
Multi Site Trunking
Applications – Dispatchers, AVLS

100. NEXEDGE – Conclusion Summary
Better coverage than other digital radios systems
More cost effective
Better Migration Solution
Multi Vendor
Trunking Options available
Dispatcher Applications available

101. with

102. Thank You. Merci beaucoup. Grazie per l`attenzione. Vielen Dank
Thank You! Merci beaucoup! Grazie per l`attenzione! Vielen Dank! ¡Muito ObLebanondo! ¡Muchas Gracias! شكرا˝
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