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content


RF Neulink wireless diversity

RF Neulink wireless diversity

RF Industries' Neulink Division has introduced a new wireless diversity receiver/transmitter that includes up to four separate receiver/antenna units
  • Written by Urgent Communications Administrator
  • 1st October 2002

RF Industries’ Neulink Division has introduced a new wireless diversity receiver/transmitter that includes up to four separate receiver/antenna units powered by battery or AC current.

The diversity receiver and transmitter is designed for applications where RF interference is possible or for applications that demand uninterrupted audio and video transmission. Applications include: a police officer videotaping of domestic violence calls; air-to-ground coordination for chase and surveillance; roving security tape and video relay of suspicious activity to central secured area; extended security monitoring for expanded building facilities; and military video monitoring for security and classified applications.

The product is also being marketing for other monitoring applications, such as airport security, airplane “in-flight” activities and recording, hospital emergency rooms and critical care units, remote and battery powered film and movie studio recording, fire, paramedic and other mobile public safety applications, wireless closed circuit TV and remote news broadcasting.

The unit is available in UHF, 900 MHz and 2.4 GHz frequencies.
www.rfneulink.com

DX Radio Systems rolls out 9000 series

DX Radio Systems has announced the DXM9000 series dual-mode mobile radios. They are available for various land mobile markets and compatible with the MPT1327 protocol, an international open architecture format. The 9000 series includes four different models — with unique head configurations and progressively advanced features.

The DXM9010 features a single-digit LED display and three fixed buttons. In conventional mode, the 10 channels also can be configured to Scan or Vote groups and operate in trunking mode, the radio has 10 memories that can be set up to call phone numbers, depots and groups.

The DXM9020 offers six programmable buttons and a six-character, alphanumeric starburst LCD display, along with 100 conventional channels or 250 trunked call addresses that can be alpha-tagged for phone book scrolling.

The DXM9025 is a systems-compatible, 1,000-channel alpha name mobile featuring a two-line × 12-character dot matrix LCD display, a 12-button keypad and six assignable function buttons and separate Selcall and Status lists editable from the handset.

The DXM9030 includes a seven-line × 14 character graphics display and offers the flexibility of a remote control head radio with the same 1,000-channel range, editable lists and other dual mode features as the DXM9025.
www.dxradiosystems.com

Midland unveils professional portable radio

Midland Radio has introduced a portable two-way radio for business and professional communications designed to operate on conventional user-licensed VHF or UHF frequencies.

The 80-150/400 boasts 16 channels and 5 watts of power built into a polycarbonate housing and weighs 14 ounces including the standard 1200 mAH NiMH rechargeable battery.

Features of the 80-150/400 include adjustable transmitter output power by channel and scan and programmable squelch codes. In addition, each of the 16 channels can be field-programmed for 12.5 or 25 kHz bandwidths.
www.midlandradio.com

IFR launches improved spectrum analyzer

IFR announced an improved version of the 2399 spectrum analyzer designed to meet the needs of the cellular manufacturing and test market by making a higher frequency range instrument available at a lower price.

The 2399A is a color 9 kHz to 3 GHz spectrum analyzer that replaces IFR’s existing 2399 spectrum analyzer. It offers a lower noise floor of -125 dBm at a price of $8,700 — a drop of $900 over the 2399.

The 2399A can be ordered with an optional digital resolution bandwidth filters (DRBW). The filters are generated digitally at 100Hz, 30 Hz and 10 Hz to allow finer resolution, reducing the effective noise floor by 5 dB.

The lightweight (less than 21 lbs.) unit features a large color LCD display, a fast processor and a large memory capable of storing up to 1,000 screen traces and 2,000 operational states. Its 50-ohm input can accept signals between +30 dBm and -120 dBm while providing protection up to 50 VDC. The comprehensive marker system allows as many as nine markers to be displayed at any one time, together with a marker table showing the frequency and level of each marker selected. This feature allows multiple signals to be evaluated simultaneously. In addition to Normal Markers, the 2399A provides Delta Markers, Peak Search, Peak Track, 1/Delta, Marker Track, Marker to Center, and Marker to Reference capability.

The instrument can be ordered with a full-range tracking generator, high stability time base, and quasi-peak detectors for EMC-compatibility testing and digital resolution bandwidth filters, Its pricing at US $9,048.
www.ifrsys.com

Cisco introduces mobile access router

Cisco Systems Inc. announced the Cisco 3200 series mobile access router, a new solution for mobile vehicular applications. The router is designed to facilitate the mobility of networks in motion — entire networks of communication devices in moving vehicles such as airplanes, ships, tanks and trains — and is designed for “always-on” connectivity.

It is a compact access router that is designed to provide security in data, voice and video communications, and seamless mobility and interoperability. Enabled by standards-based mobile IP, the router extends the edge of the IP network, delivering mission-critical applications for the defense, public safety and commercial transportation markets.

It also includes Mobile Networks Software that allows an entire network, not just a single client, to stay connected while in motion.
www.cisco.com

Site Master cable and antenna analyzer

Covering the 2 MHz to 1.6 GHz frequency band, the Site Master S113C/S114C site management tools are designed to accurately locate and identify RF cable feed-line and antenna system faults. These models are ideally suited for any experience user in commissioning and maintenance of today’s wireless communication system infrastructure including VHF, cellular and GPS applications.

The system’s measurement capability includes return loss, VSWR, cable loss and distance-to-fault (DTF) analysis. RF interference rejection enables accurate, repeatable measurements in the presence of high RF activity. Data analysis software enables assessment of system trends, problems, and performance in addition to professional report generation. An optional power meter is available to make power measurements quickly and easily.

It features spectrum analysis capability in addition to measurement capability, allowing technicians and field engineers to identify and solve RF system problems such as coverage, interference and other path related signal problems. Its spectrum analysis ranges from 100 kHz to 1.6 GHz.

The system’s models include data analysis software, soft carrying case, rechargeable/field-replaceable battery, AC/DC power supply, 12.5 VDC automobile cigarette lighter adapter and users guide.
www.us.anritsu.com/default.asp/lang.eng

Antenna Specialists marries technologies

The Tele-Locator Dual-System mobile antenna combines both GPS and 900 MHz technologies in a single, cost-effective antenna to offer two-way communication and GPS location services.

It allows for customers with GPS capabilities to also have two-way 900 MHz communications — without the expense and often-unwanted appearance of two single function antennas on the vehicle.

This antenna facilitates integrated voice and data wireless service along with the benefits of GPS location capabilities to provide a solution to the E911 problem for wireless phone users. For example, this antenna allows the use of an in-vehicle GPS system to identify the location while the cellular phone can be used to summon assistance. Additionally, trucking fleets are able to track their assets while having nationwide wireless communications access simultaneously.
http://www.antenna.com/index.html

Centurion Wireless unveils first multi-band, 3G antenna

Centurion Wireless Technologies has announced the availability of the Multi-Band Microsphere antenna.

It is designed to enhance mobile phone connectivity inside buildings. It provides simultaneous, omni-directional coverage in all major global mobile communications frequency bands including AMPS, GSM, DCS, PCS and UMTS.

The antenna offers a broad range of indoor coverage for five frequency bands covering Cellular at 806-894 MHz, GSM at 880-960 MHz, PCS at 1850-1990 MHz, DCS at 1710-1880 MHz and UMTS at 1990-2170 MHz. It can eliminate the need for multiple in-building antenna installations. The antenna offers peak gains of 2.7 to 4.5 dBi. The antenna can be mounted directly on any ceiling and its extremely small form factor ensures that once installed it is practically invisible.

The antenna can also provides carriers with an upgradeable path to 3G as these services are rolled out. In the interim, it will allow wireless carriers operating on a single frequency band to create multi-carrier networks with other service providers that accommodate the full range of different services in use by mobile subscribers.
www.centurion.com

Federal Signal rolls out aviation obstruction lighting

Federal Signal, Electrical Products introduces steady-burning red aviation obstruction lights as the latest addition to its line of visual and audible signaling products.

Designed to mark tall structures that present hazards to air navigation, these lights warn pilots flying at night about obstructions such as antennas, water towers, smokestacks, skyscrapers and airport perimeter fencing.

There are three basic models — the 810S with a single lamp, 810SE with a single lamp and wiring enclosure and the 810DE with dual lamps and a wiring enclosure. An optional photoelectric controller will provide automatic lighting activation at dusk per FAA specifications. In the dual lamp units, an optional transfer relay activates the standby lamp upon failure of the operating lamp.

Units ship with 116-watt traffic signal type lamps and are rated for 8,000 hours of continual use. Photoelectric cells are rated for 5,000 on/off operations.
www.federalsignal-indust.com/Default.asp

Tags: content

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    Newscan: A look at the critical job of 911 dispatchers
    Also: NYC launches website for tracking 911 response times; Oregon implements 911 on pre-paid cell phones; LightSquared wants to keep spectrum assets; Harris receives multiple government orders; FCC extends rebanding financial reconciliation deadline; Zetron gear at core of communications system upgrade; Ritron debuts wireless access control system; EWA seeks policy review of VHF vehicular repeater system deployments.
  • RF Neulink wireless diversity
    Newscan: Average peak data rates of 144 MB/s average realized in tests with CAT 4 LTE device
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