Related by context. All words. (Click for frequent words.) 66 multiband radio 66 EDACS 65 digital trunked radio 64 P# trunked 63 Nokia TETRA 63 UHF radios 63 Motorola ASTRO 63 TETRA TErrestrial Trunked RAdio 62 P# trunking 62 ReFLEX 62 MHz trunked 62 Dimetra IP 62 DWDM optical 62 #.#b wireless LAN 61 FM subcarrier 61 GSM UMTS CDMA 61 InterReach Unison 61 Flexi Base Stations 61 TETRA radios 61 intercommunications 61 Dataradio 61 NICE Inform 61 trunked radio systems 61 NYCWiN 61 Alcatel Evolium 60 APCO P# 60 Alvarion BreezeACCESS VL 60 GSM GPRS EGPRS 60 NETSMART 60 RoIP 60 NG# [001] 60 MOTOMESH 60 Telecommunications DECT 60 radiotelephone 60 troposcatter 60 Annuncicom 60 MTP# 60 RF #M MP 59 Dimetra IP Compact 59 Terrestrial Trunked Radio 59 wireless basestation 59 GSM GPRS modem 59 Airespace WLAN 59 Instreamer 59 DWDM dense wavelength 59 manpack 59 wideband networking 59 manpack radio 59 SINCGARS radios 59 ORBCOMM satellite 59 CAD AVL 59 DuraFon 59 IMT MC 59 megahertz radios 59 #Gbps optical [001] 59 ASN Gateways 59 MTH# 58 MDTs 58 Vanu Anywave 58 expandable cordless 58 SingleRAN 58 GSM# [001] 58 MDDI interface 58 UHF VHF 58 mesh backhaul 58 AN/VRC-# 58 GSM GPRS cellular 58 RF #H 58 wireless mesh nodes 58 ASN GW 58 #.#b g WLAN 58 GSM cellular 58 Loop Carrier BLC 58 UHF SATCOM 58 Anywave 58 GPS SBAS 58 corded cordless 58 MODBUS RTU 58 MSAT satellites 58 vIPer 58 GlobalWave 58 MIMO antenna 58 PacketWave 58 SmartNet 58 Polycom videoconferencing 58 IPBX 58 Lucent Flexent 57 Trimble VRS 57 Spectrum FHSS 57 TETRA Terrestrial Trunked Radio 57 BreadCrumb 57 airborne shipboard 57 reconfigurable optical 57 MODBUS 57 #Base SX 57 #.#j 57 multiband radios 57 radiocommunications 57 GMDSS 57 GuideBuilder 57 Synchronous Optical Network 57 wideband codec 57 Tsunami MP.# 57 UTRAN 57 MSS ATC 57 Ethernet-over-SONET/SDH 57 BreezeACCESS 57 W-CDMA/HSDPA 57 SafeRoute 57 trunking gateway 57 WinLink 57 Motorola Dimetra IP 57 FXS ports 57 geopositioning 57 LAN WLAN 57 Intraplex 57 Strata CIX IP 57 polar modulation 57 Airspan HiperMAX 57 SR Telecom symmetryMX 57 IPTV headend 56 FRS GMRS 56 ONVIF compliant 56 MSC Servers 56 FibeAir 56 IRIS payload 56 SatMAX ® satellite 56 Cypress WirelessUSB 56 ID# [003] 56 Trunked 56 MOTOMESH Duo 56 Allot NetEnforcer 56 Wi-Fi/WiMAX 56 #G/#G/LTE 56 transmitters receivers 56 MOTOTRBO 56 industrially hardened 56 Frequency Hopping Spread 56 amplifier adapter 56 Wavelength Division Multiplexing WDM 56 CDMA 1XRTT 56 terrestrial repeater 56 Occam Broadband 56 Evolium 56 EPLRS 56 IPICS 56 ruggedized handheld 56 3G UMTS networks 56 Touch2Talk 56 VHF frequencies 56 onBoard Mobile Gateway 56 AN #i broadband 56 TTNT 56 RingMaster 56 Aruba wireless LAN 56 GPRS UMTS 56 MXtv 56 A2DP streaming 56 Tetra radios 56 SATCOM terminals 56 3G CDMA# 56 InterReach 56 Falcon III AN/VRC-# 56 P# ISSI 56 Nortel Networks OPTera Metro 56 Calix E7 ESAP 56 DTCS 56 RS# serial 56 MobileCop 56 ISDN BRI 56 WLAN wireless LAN 56 P#IP 56 Motorola TETRA 56 talkgroup 56 digital headend 56 GNSS receiver 56 SoftSwitch 56 multicarrier 56 Pronto OSS 56 OmniTRACS 56 aided dispatch 56 CDMA# 1x 56 BreezeACCESS VL 56 Praesideo 56 GSM TD SCDMA 56 Navini Ripwave 56 Ripwave 56 Airbiquity aqLink 56 millimeter wave MMW 56 OmniPCX Enterprise 56 IWVS 56 CDMA iDEN 56 #G/#G cellular 56 Harris P#IP 56 WiMAX baseband 55 SatMAX R 55 Digivance 55 FreeSpeak 55 AdaptaCell 55 WAN interfaces 55 Common Photonic Layer 55 locationing 55 LRAD #X [001] 55 multistandard 55 multiband multimission 55 TI CC# 55 RF #M 55 Firetide mesh nodes 55 AN/PRC-# C radios 55 Moovbox 55 microwave radios 55 GHz DSRC 55 GPRS GSM 55 CDMA femtocell 55 PSTN gateway 55 HotPort 55 Ancillary Terrestrial Component ATC 55 Exstreamer 55 MSAT G2 55 SatMAX ® 55 UMTS W CDMA 55 Rx Tx 55 HiperMAX 55 NodeB 55 GSM# [002] 55 #/#/#/# [001] 55 MC#A 55 EDGE WCDMA 55 talkgroups 55 #.#.# ZigBee 55 #.# GHz DSRC 55 MetroNID 55 Avaya Definity 55 Computer Aided Dispatch 55 ViaSat LinkStar 55 TCDL 55 MTM# 55 MicroLight 55 BelAir#T 55 W-CDMA/HSPA 55 ALERT FM 55 Nortel DMS 55 payphone kiosks 55 WLAN #.#n 55 Globalstar satellite 55 #/#BaseT Ethernet 55 Drive Away CCT# 55 IEEE#.#b 55 iDirect iNFINITI 55 Digi Connect 55 IEEE #.#p [002] 55 alphanumeric pagers 55 JTRS approved 55 spread spectrum FHSS 55 Packet Core 55 SIP Session Initiated Protocol 55 XO SIP 55 FlexWave Prism 55 G.# codec 55 PMBus ™ 55 IWLAN 55 JITC certified 55 FlexACM 55 multiservice provisioning platforms 55 Modbus protocol 55 PROFIBUS DP 55 FIPS #-# compliant 55 ASN gateway 55 OCT# Series 55 certified wideband manpack 55 Swift# 55 DECT handsets 55 division duplex FDD 55 Answering Point PSAP 55 Aperto PacketMAX 55 signaling conformance 55 EtherNID 55 SONET Ethernet 55 ATS# 55 Netledge 55 Infinera DTN optical 55 C2PC 55 DVB S2 satellite 55 Globalstar Simplex data 55 wireless LAN Bluetooth 55 Siemens SURPASS 55 Alvarion BreezeMAX 55 IEEE #.#b g 55 HughesNet broadband 55 #.#a/b/g radios 55 ARMER 55 #G WDM [002] 55 Mode DTM 55 MHz UMTS HSDPA 55 demodulate 55 baseband chipset 54 LTE HSPA + 54 GPRS EDGE UMTS 54 PMBus interface 54 Nokia NetAct 54 pico cell 54 IP DECT 54 UMTS GSM 54 Gigabit Ethernet transceivers 54 #.#MHz [006] 54 AN/PRC-# C 54 fieldbuses 54 integrated circuits MMICs 54 VPN router 54 Netted Iridium 54 WCDMA CDMA 54 3G/GSM 54 asynchronous serial 54 Synchronous Digital Hierarchy SDH 54 Qualcomm MSM# chipset 54 Nortel Optical Multiservice 54 data terminals MDTs 54 Lucent Stinger 54 Trident7 54 HF radios 54 #MHz frequency [002] 54 coarse wavelength division multiplexing 54 servo amplifier 54 Switched Ethernet 54 #GHz frequency band 54 MicroMAX base 54 FibeAir IP 54 HF VHF 54 ProSLIC 54 EdgeConnect 54 video recorder NVR 54 5ESS 54 Immix 54 wireless 54 eLORAN 54 #Gbps optical [002] 54 transceiver IC 54 baseband RF 54 HDMI switchers 54 FHSS 54 WCDMA GSM 54 orthogonal frequency division 54 SkyExtender 54 3G UMTS HSPA 54 3G/WCDMA 54 aqLink 54 Bluetooth ® 54 MetaSwitch VP# 54 3GPP compliant 54 modular stackable 54 Distributed Antenna Systems 54 WLAN #.#b 54 DeltaV SIS 54 SS7 signaling 54 datalinks 54 ExtendAir 54 MAINGATE 54 TrangoLINK Giga 54 MARCS 54 BGAN satellite 54 Telsasoft 54 unicast streaming 54 MEGACO 54 Radio LMR 54 ® AN/PRC-# C 54 GSM TDMA 54 cdma# 1x EV DO 54 Alvarion BreezeACCESS 54 TETRA 54 SBV# 54 FSP #RE 54 ISDN PRI 54 LoopStar 54 BACnet MS 54 #.#Ghz frequency 54 MetroMesh 54 CDMA 1x 54 TETRA terminals 54 RF vector 54 Radiotelephone 54 PDH SDH 54 LambdaUnite R 54 CiPHR 54 NexTone IntelliConnect System 54 IEEE #.#af compliant 54 FlexRay TM 54 Luxul 54 Spatial Atrium 54 EPABX 54 RF subsystem 54 secure timing SAASM 54 wideband RF 54 VoCable 54 TCP IP Ethernet 54 IEEE #.#a/b/g 54 Optical Multiservice Edge 54 portability NP 54 Digita Oy 54 Message Handling 54 ADVA Optical Networking FSP 54 waveform portability 54 ancillary terrestrial 54 QZSS 54 GSM GPRS 54 Firetide HotPort 54 CAISI 54 USART 54 QAM quadrature amplitude modulation 54 Tropos MetroMesh 54 Airband fixed 54 Profinet IO 54 Extio F# 54 protocol conformance 54 WLAN routers 54 RS# interfaces 54 datacomms 54 bidirectional communication 54 perimeter intrusion detection 54 Inmarsat BGAN 54 RS# serial port 54 Qualcomm MediaFlo 54 FiberPath 54 Coarse Wavelength Division Multiplexing 54 FM modulator 54 W CDMA networks 54 Area Augmentation System 54 Roaming Client 54 IsatM2M 54 Gb s optical 54 ADVA Fiber Service 54 HTAWS 54 cdma# 54 multichannel multipoint distribution 53 InnoMedia MTA 53 Microwave Packet 53 Codespear 53 PSTN gateways 53 cellular basestations 53 CableLabs DOCSIS 53 Alloptic GEPON 53 terrestrial trunked radio 53 multiband 53 celluar 53 Emphasizing peaceful coexistence 53 transmit uncompressed 53 infrared IrDA 53 HotZone Duo 53 ONUs 53 VolP 53 Winlink 53 Wideband Networking Waveform WNW 53 #Gb s optical 53 MOTOTRBO TM 53 LTE FDD 53 ARRIS DOCSIS 53 O2 Airwave 53 GLOBETrekker 53 CDMA# 1X 53 Pseudowires 53 IEEE#.#b g 53 cellular backhauling 53 Wi Fi #.#a/b/g 53 OC# [003] 53 AnyPlace 53 FlexWave ™ 53 NexTone SBC 53 NXP Nexperia cellular 53 4Motion solution 53 ShoreTel IP telephony 53 HF VHF UHF 53 Panasonic Toughbooks 53 TETRAPOL 53 Verizon IP Trunking 53 multiservice optical 53 MPLS backbone 53 power amplifiers MCPAs 53 DO Rev 53 Navitraq VI 53 DVB SH standard 53 NetWay 53 intersystem 53 Real Time Kinematic 53 SkyRouter 53 XMap GIS Editor 53 units ONUs 53 #.#/#G 53 WCDMA HSPA + 53 iNetVu ® 53 Gigabit PON GPON 53 LMS# [001] 53 coax cables 53 LGdispatch 53 matrix switcher 53 EGPRS 53 ERICSSON Ericsson 53 FXO FXS 53 WLL CDMA 53 VeeLo NextGen 53 #G/#G/#G 53 Octasic Vocallo MGW 53 seamlessly interoperates 53 division multiplexing 53 GoTa 53 #Gbits s 53 3G WCDMA HSPA 53 DCOSS 53 #G XFP 53 multipoint conferencing 53 3G/EDGE 53 3Com NBX 53 baseband chipsets 53 Barix Exstreamer 53 Alcatel Lucent OmniPCX Enterprise 53 MicroMAX 53 UMTS HSPA + 53 Motorola Canopy 53 First InterComm 53 #Tx/#Rx 53 IP multicasting 53 AES IntelliNet 53 baseband SoC 53 FreeNET 53 Starent ST# 53 SIP VoIP 53 Metrobility 53 Personal Handyphone System 53 RF #I 53 radiocommunication 53 IEEE #.#-# standard 53 Hitachi EPON 53 Thomson Cirpack 53 WebPhone 53 wireless LAN WAN 53 accelerator emulator 53 Nortel CS# 53 Automatic Vehicle Location 53 PacketCable compliant 53 Firetide mesh 53 GSM GRPS 53 interwork 53 HiQnet 53 G.# GPON 53 AtHoc IWSAlerts ™ 53 DECT CAT iq 53 Texas Instruments OMAP processor 53 Ekahau tags 53 infra red IR 53 baseband modem 53 WCDMA HSDPA 53 VQuad 53 DragonWave Horizon Compact 53 GEOCommand 53 IDEN 53 Zhone MALC 53 1X EVDO 53 RailComm 53 MHz ELT 53 EZURiO 53 HiperMAX base 53 SmartVoice 53 stations BTSs 53 UMTS/3G 53 FlexiPacket Microwave 53 WLAN WWAN 53 quadrature amplitude modulation QAM 53 GSM CDMA 3G 53 3GPP IMS 53 Pro WAV 53 HSDPA EDGE 53 databus 53 Direct Inward Dialing DID 53 AirPair 53 Nexperia cellular system 53 SmartAlert 53 C COM iNetVu 53 Motorola wi4 WiMAX 53 IsatPhone 53 TDM SONET 53 RTK GPS 53 CBRN detection 53 #.#d WiMAX 53 WCDMA UMTS HSDPA 53 #.#.#/ZigBee 53 HomePlug powerline 53 CMX# [002] 53 AN/PRC-# 53 Telnet SSH 53 CDMA 1xRTT 53 satcoms 53 InnerWireless Horizon 53 WAN PHY 53 nanoGSM 53 Foundation fieldbus 53 #GHz frequency 53 Zetron 53 Inmarsat GAN 53 QUALCOMM MSM# chipset 53 Dense Wave Division Multiplexing 53 Answering Points 53 variable attenuator 53 BreezeMAX TM 53 glueless interface 53 GigE interface 52 subcarriers 52 W CDMA HSDPA 52 geo stationary satellite 52 ConSentry LANShield 52 snom phones 52 T#XR 52 WCDMA CDMA# 52 AN/PRC-#F C 52 dismounted soldier 52 MAC baseband 52 MRV Fiber Driver 52 Solutions Sector CGISS 52 GPIB interface 52 Celeno Wi Fi 52 Telit modules 52 HD Encoder 52 BelAir# 52 RS-#/# 52 GaAs PHEMT 52 SkyWay MAX 52 MediaSphere 52 Samsung OfficeServ 52 AN/PRC-#G 52 VDL Mode 2 52 Trapeze wireless LAN 52 acquired Systematics 52 reachback 52 deploying uniquely architected 52 GAO Comm 52 D2 mCUE 52 RF #V 52 HEARO 52 Fusiv 52 Drop Multiplexer ROADM 52 Avaya VPNremote 52 VisionTEK 52 DS#/E# 52 GPRS WLAN 52 VDSL2 ADSL2 + 52 UMTS HSDPA HSUPA 52 BroadGate 52 Inmarsat IsatPhone Pro 52 Ciena ActivFlex 52 Resilient Packet Ring RPR 52 Answering Points PSAPs 52 BroadAccess 52 Multipoint 52 digital headends 52 WiMAX IEEE#.#e 52 interoperated 52 GPON EPON 52 IP softswitch 52 Autodesk LocationLogic 52 WiMAX basestation 52 SatManage 52 #GHz bandwidth 52 TDMA CDMA 52 Wideband Networking Waveform 52 multivendor multitechnology Nokia NetAct 52 N#iL 52 WiMax #.#e 52 NetAct network 52 OFDM modulation 52 downconverters 52 quadrature amplitude modulation 52 cdma# 1x 52 T BERD 52 GPS WAAS 52 G.SHDSL 52 MHz UMTS 52 UART interface 52 COPsync tm 52 #/#G [002] 52 Lat Lon 52 CDMA W CDMA 52 antenna arrays 52 FlexWave 52 ShiftWatch R 52 2G GSM 52 GSM GPRS Edge 52 GSM Quadband 52 division duplex TDD 52 Gyrocam 52 Barix Annuncicom 52 radiolocation 52 GPON FTTH 52 ARM9 processor 52 Navy MH #R 52 ATmega#RFA# 52 QUICC Engine 52 Proximetry AirSync 52 synchronous asynchronous 52 Serdes 52 Alvarion WiMAX 52 UHF frequencies 52 Ethernet PHY 52 #/#BaseT 52 multiband handheld radios 52 #G DP QPSK 52 EdgeMarc Network Services 52 multi terabit 52 OS COMET 52 Modius OpenData 52 1XRTT 52 Modbus RTU protocol 52 TransTRAK 52 NetEnforcer AC 52 Packet Optical Platform 52 Nokia NetAct TM 52 TDD LTE 52 TDM Ethernet 52 PTCRB certification 52 Toshiba Strata CIX IP 52 multicast routing 52 converged IP telephony 52 MB DDR2 SDRAM 52 NAVTEX 52 NetCracker OSS solution 52 TrueFocus 52 line terminal OLT 52 WLAN router 52 serializer deserializer SerDes 52 AirMaestro 52 Nozema Services 52 Calix C7 multiservice 52 Protocol Stacks 52 DAB DMB 52 WiMAX basestations 52 megahertz frequency 52 Synapse RF Engine 52 NEC UNIVERGE 52 RF Radio Frequency 52 Globalstar simplex data 52 Wifi Bluetooth 52 NTT DoCoMo 3G FOMA 52 inverse multiplexing 52 echo canceller 52 Icop 52 single sideband 52 Vitesse FlexEQ 52 OuterLink 52 Wi Fi HotSpot 52 RedMAX Base 52 MultiModem 52 Wireless Telephones 52 RF #B 52 TRuepoint 52 baseband LSI 52 CDMA1X 52 IPstage 52 Session Initiated Protocol SIP 52 MIMO antennas 52 Dimetra 52 FibroLAN 52 Geutebruck 52 QPoint 52 handheld radios 52 ActiveTag 52 CSU DSU 52 VACIS 52 operator maintainer 52 Datacomm 52 TomTom NAVIGATOR 6 52 PremierOne 52 OSA Parlay 52 tunable DWDM 52 PMBus TM 52 Ceragon FibeAir 52 Umbilical connectors provide 52 FM RDS 52 wi4 WiMAX 52 TDM ATM 52 Gbit s optical 52 Sprint Nextel iDEN 52 Atheros WLAN 52 Fujitsu NETSMART 52 FireRMS 52 BXR # 52 Irdeto conditional 52 eNfusion 52 AIME CT 52 WFDS TM 52 3G/W-CDMA 52 encryptor 52 MHz frequencies 52 FIPS #-# Validated 52 PSTN connectivity 52 VistaMAX 52 DiSEqC 52 XMC modules 52 intelligence SIGINT 52 HSDPA WCDMA 52 Garmin nuLink 52 FTB #B 52 TS #i 52 Synchronous Ethernet 52 omni directional antenna 52 BigBand Cuda 52 IDT DisplayPort 52 COR P# 52 NetOmnia 52 GERAN 52 GSM GPRS handsets 52 GPRS CDMA 52 CommAgility AMC 52 RS-#/RS-# 52 Agilent MXA 52 OADMs 52 Inmarsat satellites 52 Reciva Gateway 52 detachable antennas 52 wideband 52 CDPD 52 IEEE#.# [001] 52 HD videoconferencing 52 AFDX 52 terrestrial transmitters 52 MiniBOSS 52 vehicular amplifier 52 VSAT terminals 52 3G W CDMA 52 WAN failover 52 TruLink 52 VOR ILS 52 WCDMA wideband CDMA 52 ROADM Reconfigurable Optical 52 GHz millimeter wave 52 C4 CMTS 52 electro optic infrared 52 OpenStream 52 Flexent R 52 WiMAX #e 52 Softransceiver 52 TTL CMOS 52 Battlefield Airborne 52 W CDMA CDMA# 52 eMTA 52 multifrequency 52 PlugLink 52 SOHO routers 52 Enhanced Uplink 52 RX1 52 Circuit Emulation 52 selects Alcatel Lucent 52 modulators demodulators 52 ESRI GIS software 52 optical DWDM 52 FibeAir #P 52 ShiftWatch 52 Wi max 52 Sensis MDS 52 NetRing 52 U TDOA 52 TUNet 52 multiservice provisioning platform 52 PXI instrumentation 52 ATSC DTV 52 serial RapidIO 52 G#C# 52 unlicensed spectra such 52 Inmarsat SwiftBroadband 52 Ethernet TCP IP 52 GPRS modem 52 CDMA 1X 52 Zarlink ZL# 52 #.#GHz cordless 51 Picocell 51 channel bandwidths 51 DCS# 51 Vsat 51 Xypoint 51 Ruckus ZoneFlex APs 51 D2Link 51 Hawklink 51 Ubiquity SIP Application Server 51 4Gbit s Fibre Channel 51 Cisco IP telephony 51 MT#A 51 Strata CIX# [001] 51 ARRIS Touchstone 51 Wi Tronix 51 I2C serial 51 AWT# AWT# 51 gateways routers 51 eNB 51 DP QPSK modulation 51 Reciva powered 51 SmartEdge platform 51 Inteleflex 51 CITYFLO 51 JTRS GMR 51 Navman marine 51 KVH Industries Nasdaq KVHI 51 ARAM ARIES 51 KNG P# 51 WorldGate Ojo 51 Trapeze WLAN 51 LGviewer 51 ASON 51 ZyAIR B 51 units RTUs 51 WiMAX MIMO 51 hiT 51 Versera Video Mail 51 Selex Communications 51 VoIP softswitch 51 Calix C7 platform 51 UTMS 51 #/#-bit WEP encryption 51 TestPoint 51 gigabit router 51 BroadLight BL# 51 UMA compliant 51 SeeGull 51 Intel #L 51 softswitching 51 cellular backhaul 51 SoftAir 51 Airspan WiMAX 51 PanOS 51 RF subsystems 51 2G #.#G 51 Ku Ka 51 Falcon III AN/PRC-#G 51 Navitraq V 51 GSM GPRS EDGE UMTS 51 ActivFlex 51 InformaCast 51 Evolium ® 51 Intermec CN3 51 microTCA 51 SMPTE compliant 51 NetStreams DigiLinX 51 PCIe GbE 51 FreeWave radios 51 #G DWDM [001] 51 Automatic Meter Reading 51 CAN BUS 51 WCDMA LTE 51 RapidCell 51 RS#/# 51 Motorola MOTOMESH 51 CoreDirector 51 #G/#G modem 51 mesh nodes 51 HipLinkXS 51 WiMAX IEEE #.#e 51 access node MSAN 51 phasor measurement units 51 HSPA WCDMA 51 unlicensed #.#GHz 51 CWDM DWDM 51 matrix switchers 51 trunking 51 MB#K# 51 VHF UHF 51 Harman Kardon audio 51 Interoperable Communications 51 Cyan Z Series 51 AN #i 51 RS-#/#/# 51 AudioMate# 51 RJ# port 51 gpsOne 51 wireless LAN VoWLAN 51 MEF certified 51 WLan 51 IPCentrex 51 BNC connectors 51 Signal Booster 51 Panasonic Toughbook ® 51 wirelessly connects 51 ECI XDM 51 Flashlink 51 KeySpan Comm 51 power amplifier linearization 51 Agilent GoldenGate 51 Ciena CoreDirector 51 multiservice switching 51 Agilent E#C 51 AN #U 51 SURPASS hiT 51 #.#a/b/g wireless 51 Unity XG 51 Astria CP 51 Synchronous Digital Hierarchy 51 Scala digital signage 51 MetaLIGHT 51 OnAsset Platform 51 sub channelization 51 OpenPort 51 GlobalTRACS 51 AirFortress 51 femto cell 51 Trimble VRS TM 51 COFDM