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Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. Analog & Digital Two-Way Radio Systems.

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Presentation on theme: "Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. Analog & Digital Two-Way Radio Systems."— Presentation transcript:

1 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. Analog & Digital Two-Way Radio Systems

2 2 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. Spectrum Efficient Meets FCC mandates today & tomorrow – Analog: 25 & 12.5 kHz Channels – NXDN® Digital: 12.5 & 6.25 kHz Channels l

3 3 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. Spectrum Efficient NXDN® Digital Air Interface – Fits in FCC emissions masks for 12.5 & 6.25 kHz bandwidths – Forward Error Corrected digital protocol – 12.5 kHz: kHz bandwidth – 6.25 kHz: kHz bandwidth – 4-Level FSK modulation – FDMA: One voice channel 4 kHz occupied BW 4K0F1E (4800 bps) 8.3 kHz occupied BW 8K30F1E (9600 bps) NXDN for 12.5 kHz channelsNXDN for 6.25 kHz channels

4 4 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. Spectrum Efficient FCC Certified Emissions – New licenses: Apply for analog, 12.5 NXDN and/or 6.25 NXDN emissions – Modify existing licenses: Add 12.5 NXDN and/or 6.25 NXDN emissions – No current FCC mandate for 6.25 kHz !

5 5 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NXDN ® Superior Audio AMBE+2: Improved FEC, Noise Reduction & AGC (vs. IMBE) – Performs under degraded / noisy conditions – Adopted for P25 Source: DVSI Inc., USA NXDN 6.25/12.5: AMBE+2 Half Rate P25 Phase I (orig.): IMBE Full Rate Phase I (8/08): AMBE+2 Full Rate Phase II: AMBE+2 Half Rate

6 6 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NXDN ® Digital Audio Quality Best Bit Error Rate (BER: “digital signal quality”) NXDN ® outperforms P25 Phase I Reason: DSP Filtering, Offsets & FEC

7 7 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NXDN ® : Increased Range RF Signal Strength vs. Distance = Same for analog & digital signals Audio Quality varies with signal strength (PESQ ITU P.862): low signal: Increased noise low signal: Error corrected & intelligibility restored

8 8 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NXDN ® : Increased Range NXDN® 2 x Distance of analog Noise incursion -84 dBm -118 dBm (NXDN; BER increase ) Kenwood System TECH MEMO # K1420T: RADIO SYSTEM COVERAGE PREDICTIONS Rev 00 9/3/08 NXDN Audio ( PESQ factored) Green: Good Blue: Noisy Analog Audio Red/Yellow: Excellent/ V. Good Green: Good Blue: Noisy Gray: Very Noisy/N.G. 40 km (66.7 mi.) 20 km (32 mi.)

9 9 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. Trunked Mode Trunking Easy User Operation System automatically assigns free channel from a pool of channels No need to manually select channels or monitor before transmit Multiple talk groups can communicate simultaneously

10 1010 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. Trunked Mode 3,000 GID’S & 3,000 UID’S Per Site Large ID capacity for multiple organizations Talk groups GIDs organized by regions, departments, special operations, etc. Individual UIDs provides caller ID & private call Assignable UID & GID range: 1- 65,619 System Busy Call Queuing / 8 Priority Levels Calls are assigned a traffic channel based on importance Supervisors, administrators, dispatchers can have priority access Emergency Calls are always highest priority ( Level1) All Traffic Channels busy: call requests are queued based on priority level (UID COS). As Traffic Channels become available, highest priority PTT caller is granted access. System Busy Call Queuing / Pre-emption Higher priority calls will remove lower priority calls in progress For dispatcher, supervisors, emergencies Message Trunked mode only (pre-emption cancels call hold timer; current caller must release PTT for traffic channel to be assigned to preemptor)

11 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. Trunked Mode Group Call (GID): Communicate with specific talk groups within an organization Less confusion and need to repeat transmissions Reduces listener fatigue (less traffic to listen to) Selectable GID list programmed in radio Called GID un-mutes (all other GIDs muted) Cannot make / receive a GID call unless the GID is programmed in the radio

12 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. Trunked Mode Individual Call (UID): Provides private unit-to-unit calling Selectable UID list programmed in radio Others users cannot participate or monitor the call Can limit capability to select subscribers

13 1313 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NXDN ® Trunked Mode Talk Group Scan Scans multiple GID’s for call activity Priority Monitor ID’s 1 -4 Collects units to a higher Priority GID call (e.g. dispatcher, supervisor) Even while on a non-priority or lower priority GID call. Late Entry Subs join both GID or UID calls already in progress After power on or entering system coverage All Call (GID=0) Calls all GIDs on a system General or emergency announcmenst Called units can respond Broadcast Calls One-way announcement call to a specific GID Called units are time inhibited from responding Operation: Select target GID, Press BC key, Press PTT, talk

14 1414 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NXDN ® Trunked Mode Control & Traffic Channel Switching – Control CH logic disabled, system assigns a Traffic Channel as a new CC – Traffic CH logic disabled, system removes it from service. Fail Soft Network link fails- site trunked operation continues Site trunking fails (cable/switch failure), – Subs go to fail soft channels – Operate in “single channel” trunked mode (up to 16) – Group Calls only (no Individual Calls or data transmissions) – Site/subscribers resume normal trunked operation

15 1515 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. Multi-Site IP Networks NEXEDGETM network option leverages the power of IP – Links trunked sites together for wide area call capabilities. 16 /48 Site Networks – For campus, city-wide, county-wide, regional or inter-state communications. System Manager IP Connect ion

16 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. Multi-Site IP Networks LAN/WAN Connectivity – Scalable networks over existing IT / Broadband assets – Enterprise LAN/WAN – Private Licensed Microwave, Unlicensed Spread Spectrum T-1 – Carrier Broadband Services (T-1, Commercial-grade xDSL, Metro-Ethernet) 10/100 Base-T Ethernet Switches & Routers – No proprietary servers, gateways or audio switching hardware required – IPSEC VPN tunneling provides encrypted & authenticated secure communications links Ethern et Switch Rout er System Manager IP Connect ion

17 1717 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. Multi-Site IP Networks Large ID capacity for large fleets and shared networks 60,000 GID’s & 60,000 network 3000 GIDs & 3000 site Range 1-65,519 Automatic Roaming Automatically search for the best sites for registration Uses complex control channel hunt algorithms, RSSI & BER GID & UID Calls sent to sites where units are registered System Manager IP Connect ion

18 1818 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. Multi-Site IP Networks Individual Call Response (UID Calls) System waits for called party to answer before allocating a Traffic Channel to the call Conserves network resources Busy System Wait (GID Calls) System waits for a free Traffic Channel at all target sites to proceed with call Best effort to insure all units to receive the call ESN Validation Unique factory embedded Electronic Serial Number validated for access Performed once at site initial registration ( not available in single site) System Manager IP Connect ion

19 1919 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NXDN ® Conventional Mode – Subscribers: Simplex & Semi-Duplex operation per channel – Base Units: Simplex, Full-Duplex or Repeat operation per channel – Analog, NXDN or Mixed operation per channel – 65,519 GID’s & 65,519 UIDs (large fleets and system sharing) – UID & GID Validation (authorized access) Base Operation Repeat Operation Simplex TA CH

20 2020 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NXDN ® Conventional Mode “Mixed Mode” Channel Type – Analog & NXDN conventional subscribers can share the same RF channel. – Units responds /repeats in same mode received (Analog or NXDN® digital) ANALOG DIGITAL Simplex Talk Around Repeat Operation ANALOG DIGITAL Base Operation ANALOG DIGITAL ANALOG DIGITAL

21 2121 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NXDN ® Conventional Mode RAN (Radio Access Numbers:1-63) – Analogous to analog conventional “CTCSS/DCS”; “PL/DPL”; “QT/DQT – Programmable per channel; operates in base, repeat & direct mode – Audio muting – Shared repeater access – Busy Channel Lockout – Group & Individual Selective Call alerting & un-muting – NXR-700/800 bases include a 16 RAN conventional repeater controller Company A RAN: 5 Company B RAN: 34

22 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NXDN ® Conventional Mode RAN- audio muting is set 1-of-4 ways per channel Carrier (no RAN): un-mutes on carrier only RAN#: RAN # must match to un-mute RAN # + Option signaling (UID/GID): must both match to alert / un-mute Analogous to analog 2-Tone, DTMF or FleetSync® selective calling Group Selective Call: RAN# + GID must match Individual Selective Call: RAN# + UID must match No Privacy- can be monitored Company A RAN: 5 Company B RAN: 34

23 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NXDN ® Conventional Mode Group Selective Call (RAN# + GID) Alerts & un-mutes specific group GID “Talkback paging” for groups

24 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NXDN ® Conventional Mode Individual Selective Call (RAN# + UID) Alerts & un-mutes specific UID “Talkback paging” for individuals

25 2525 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NXDN ® General Caller ID – Identifies caller by UID/GID number and/or alias name in radio display – Radio matches UID / GID number with alias pre-programmed in radio Lists store up to 1000 UID/GID with alias Lists are also used for selective UID/GID calls Over-the-Air Alias (OAA) – Displays caller UID “alias” in the radio display (even if not pre-programmed UID lists) – UID alias sent in the NXDN digital air interface All Group Call Calls all GID’s on the system Use for emergency alerts, lock down, evacuation for all radios on system Program GID= All Call (0); user selectable Paging Call Pages individual units on a system User can review last 5 pages

26 2626 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NXDN ® General Emergency – Declares an Emergency to any target Talk Group GID or an Individual UID – Emergency Key (portables & mobiles) – Emergency Man-Down Tilt-Switch (portables) – Emergency Footswitch Input (mobiles) – Programmable target CH/GID, intervals, transmit monitor/receive cycles, 1630 Hz background tone, locator tones, silent, emergency display/LED’S Remote Stun/Kill – Temporarily or permanently disable a lost, stolen or compromised radio unit over the air for system security and personnel safety. – Stun: Disables TX capability & RX audio – Kill: Disables all radio functions (revived by complete re-programming) Remote Check – Dispatch can check if a unit is on and in system range – Remote check status sent as an Individual Call – Unit responds with default or user set status

27 2727 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NXDN ® General Scan Types (conventional & trunked): – Single Zone: Scans added CH-GID’s in a selected Zone – Multi-Zone: Scans added CH-GID’s in multiple Zones – List: Scans Zones in a Scan List Dual Priority Scan (conventional only): – Priority CH 1 & 2 channels can be analog and/or NXDN conventional

28 2828 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NXDN ® General Voice Security – Enhances personnel safety – Reduces risk & liability exposure – Protects sensitive facilities and operations – Analog Modes Inversion scrambler (Included ; basic level) Add Aftermarket modules (mid- to -high level encryption) – NXDN ® Modes NXDN ® digital air interface offers inherent security NXDN ® Scrambler (Included mid level: 15-bit key; 32,767 Key codes) KWD-AE21 AES & DES Encryption Module Option (2011)

29 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. Data Applications

30 3030 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NXDN® Conventional & Trunking – Voice, Voice w/ data & data sent in NXDN CAI – All messages acknowledged, programmable retries NXDN® Messaging & Data Short Data (100 bytes) Long Data ( 4096 bytes) Voice Calls Status Msg. LCD-48 char. Text messages NX Serial I/O: custom applications Individual, Group, All Group, Over Air Alias Broadcast, Page Calls,, GPS w/ Voice Emergency, EMG Man down, Cancel Horn Alert AUX In (report sensor/switch closures) AUX Out (control relays; equipment) Stun, Stun Off, Kill GPS Reports (manual, Ignition, pwr on/off) 50 Custom 16-Character Messages (208) Fleet Radios PC Application or Console (serial interface) Control or Base Station

31 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. Analog Conventional and LTR® MSK baseband signaling (1200/2400 baud); FleetSync®/II – All messages acknowledged, programmable retries FleetSync® Messaging & Data Fleet Radios Caller ID (250 sub) 48 Char. Text LCD displayed (stored) Serial I/O: text, custom applications Individual, Group, Fleet, Supervisor, Broadcast Emergency, EMG Man down, Cancel Horn Alert AUX In (report sensor/switch closures) AUX Out (control relays; equipment) Stun, Stun Off, Remote Check GPS (PTT, manual, ignition, PWR on/off) 50 Custom 16-Character Messages (90) PTT ID (ANI) Status MessagingSelective Calling Short Text (48 char)Long Text (1024 char) PC Application or Console (serial interface) Control or Base Station

32 3232 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. KAS-10 Dispatch & AVL Application A fleet and asset management tool – PTT ID & Emergency GPS Reporting – Ignition On/Off GPS Reporting – Auto-report, dispatch polled & manual send GPS updates – VGS-1 Option (store GPS historical data) Mobiles: GPS15L-W Internal Receiver Option Portable: KMC-38GPS Speaker Mic Option

33 3333 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. Migration Path NEXEDGE provides a graceful migration path from analog to fully digital fleets – All equipment supports analog & NXDN® digital modes – Bases use existing FM site equipment in both FM & Digital modes – Meets current & future FCC requirements

34 3434 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. Migration Path NX Subscriber Units support: – Analog Conventional – Analog LTR Trunked – NXDN® Conventional – NXDN® Trunked – NEXEDGE™ Multi-Site IP Networks Operates on analog & NXDN digital systems

35 3535 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. Migration Path NXR Base Units support: – Analog Conventional (built-in & external logic) – Analog Trunked (external logic controllers) – NXDN® Conventional – NXDN® Trunked Option (software upgrade) – NEXEDGE™ Wide Area IP Network (software upgrade) Serve analog & NXDN digital fleets simultaneously

36 3636 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NXDN ® Conventional Mode “Mixed Mode” Channel Type – Analog & NXDN conventional subscribers can share the same RF channel. – Units responds /repeats in same mode received (Analog or NXDN® digital)

37 37 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. Migration Path NXDN® Traffic Channel Shared with Analog Conventional Fleets – Migrate analog conventional fleets to digital on the same frequencies – Fig. Example: CH 2 & 3 TC are “shared” While analog occupies CH 3; not available to NXDN subscribers Analog Conventional CH 1 NXDN CC CH 2 NXDN TC (SHARED) CH 3 NXDN TC (SHARED) NXDN Trunked ANALOG DIGITAL Analog Conventional NXDN Trunked DIGITAL ANALOG

38 3838 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NEXEDGETM Software KPG-111DNX-200/300/700/800 Program Software – Required to program all modes – Trunked mode: Requires system key file (*.SKF) created by KPG-110SM KPG-109DNXR-700/800 Program Software – Required to program all modes – Base (Simplex/Duplex) or Repeat operation, Frequencies – Assigns Trunked site CC & TC’s KPG-110SM System Manager Software – Required to program trunked sites & networks (not used for conventional) – Includes secure USB hardware key (required to run program) – Trunking & network parameters, NXR static IP address, NX subscriber privileges, – Network diagnostics, call logs, event history

39 3939 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. SYSOP WAN Connection WAN Rout er Ethern et Switch LAN A SYSOP LAN Connection LAN B Dialup Modem SYSOP (Dial up modem to DB9) PSTN SYSOP (Front panel DB-9 for PC field techs) KPG-110SM System Manager Windows® compatible GUI [Trunked sites and networks only] Subscriber: UID/GID validation, COS Class of Service call privileges Monitors NXR status, flash update NXR Firmware Retrieve/store/analyze call activity logs, graph channel loading statistics Direct connect: Front Panel DB9 RS-232 (null modem) Remote connect: PSTN modem or IP network

40 4040 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. KPG-110SM Sy stem Manager Class Of Service Information Table (COS) – System privileges assignable to each UID & GID in a Fleet. – GID COS: validates, call & inter-site privileges (127 max.) – UID COS: validates, call privileges, queue priority (127 max.) – Each COS: Class Name & Comments tab for easy reference, assignment and re-use Fleet Information – Each Fleet is a UID & GID List for specific user groups – 5000 Fleets to organize groups / sub-groups for customers, companies, agencies & departments GID COS: 3 UID COS: 4 GID COS: 3 UID COS: 3 GID COS: 1 UID COS: 2 GID COS: 1 UID COS: 1 Fleet No. 53 GID COS: 3 UID COS: 4 GID COS: 3 UID COS: 3 GID COS: 1 UID COS: 2 GID COS: 1 UID COS: 1 Fleet No. 54 GID COS: 4 UID COS: 5 GID COS: 4 UID COS: 4 GID COS: 2 UID COS: 3 GID COS: 2 UID COS: 1 Fleet No. 55

41 4141 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NEXEDGETM Advantages NXDN ® Digital Air Interface – Spectrum Efficient – Superior Audio Quality – Increased Coverage vs. Analog – Advanced Digital Feature Sets Multiple Operational Modes – Analog Conventional & LTR Trunked – Digital Conventional – Digital Trunked & Multi-site IP Networks Analog-to-Digital Migration Path – Conventional Mixed Mode – Shared Trunked Traffic Channels Multi-Vendor Choices NXDN Forum Developer Support

42 4242 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval.

43 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NXDN FORUM

44 4444 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NXDN®: Multi-Vendor NXDN® FORUM NXDN ® Technology co-developed by Kenwood & Icom Membership Kenwood & Icom License Fee & Royalty Free Charter: – Promote NXDN® in worldwide markets – Product Development with NXDN® Digital Air Interface – Product Certification – Specification Enhancement Launched in North/South America, Mexico, UK, EU & Asia

45 4545 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NXDN®: Multi-Vendor NXDN® FORUM MEMBERS (5/09)

46 4646 Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. NXDN®: Multi-Vendor NEXEDGETM Developers (non-Forum) Copyright © 2005 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval.

47 NXDN™ Forum: How to Obtain the NXDN™ Open Standards This document outlines the interim instructions, information and conditions for obtaining the NXDN™ open standards. A dedicated download page is being prepared in conjunction with an update of the NXDN™ Forum website, and is planned for public access in the fourth quarter of Therefore, the method of obtaining the standards as described below will remain in effect until the new website is completed.


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