Node X RF Enhancers

Andrew "off-air" digital Node repeaters bring coverage and capacity into large areas shadowed from the base station by hills, buildings, and other structures. These Node Xs are highly suitable for deployment in dense urban environments, tunnels, canyons, as hole fillers, or as network extensions. They can also be used as an efficient and low-cost alternative to base stations where coverage is more critical than additional capacity.

Node X digital outdoor repeaters increase signal strength between a mobile and a base station in areas where high-quality voice or high-speed data service is not available. They are ideal for the first phase of a network rollout or to optimize cost, coverage, and quality in any subsequent phase.

The built-in ICE (interference cancellation equipment) solution to feedback makes the Node X Series ideal for all outdoor applications. Without ICE a output power in the Macro Class cannot be achieved when antenna isolation is the limiting factor which is always the case when donor and coverage antenna(s) are installed close to each other (i.e. on the sample pole).

Node C: for IS-95, CDMA2000, Flash-OFDM, and EV-DO
Node M: for UMTS and HSDPA
Node G: for GSM/GSM-R/EDGE

Node C/M/G Standard Node Cabinet

Node C Xx37-LC Line Connected Cabinet

Node C 437 Cabinet for CDMA 450 and Flash-OFDM

Node X Application Examples

Node RF Enhancers in UMTS, CDMA, and GSM applications enable urban and suburban hole filling and a much higher data rate in their coverage areas.

A) Urban hole filling and speed enhancing	B) Extending coverage for buildings and towns ;
C) Rural highway coverage (UMTS/CDMA)

All enhancers include the appropriate integrated measurement receiver and feedback canceller option.

• Multiple power classes available for substitution of either a macro or micro BTS
• Software programmable, allowing upgrades as network modulation migrates
• No backhaul requirement, reducing both CapEx and OpEx expenses
• Small size and weight for fast, one-man-lift, pole or wall mount installation
• Easy to use, self-contained auto wizard for easy setup

Node Advantages:

• Interference cancellation equipment (ICE): electronic improvement of antenna isolation; capable of greater than 35 dB of enhancement
• Items measured (GSM only): measurement of BCCH, channel power, BER, FER, VSWR, RSSI, system identification
• Items measured (CDMA/UMTS only): measurement of pilot power, synch power, Ec/Io, VSWR, RSSI, multipath signals, system identification, EVM and channel usage
• Hopping ability (GSM only): follows the hopping sequence for complete network transparency (baseband and synthesized hopping)
• Auto configuration: set up based on downlink power requirements not gain; uplink gain is automatically set up based on the downlink settings
• Access: web browser based on local access and remote access; packet data and circuit switched data options; OMC connectivity via SNMP

Uninterruptible Power Supply (UPS)

Andrew's Uninterruptible Power Supply (UPS) provides high quality ac power for electronic equipment loads, especially for outside repeater systems. UPS is optional on all series.

• Continuity of electrical power for at least 20 minutes up to 8 hours, within the defined limits and without interruption, when commercial ac source fails or degrades from overload, surges, or spikes
• Hot swap battery replacement for easy, fast maintenance

Battery Backup Units

Low capacity batteries (BBU) operate controller and modem only for at least 10 minutes or provide UPS autonomy of 20+ minutes to 8+ hours. The BBU is standard on Node Series.

For more information, email us: Contact Andrew/CommScope.

Node A RF Enhancer

Node A RF Enhancer

Andrews digital Node A RF Enhancer supports up to four separate frequency bands, and up to 24 interleaved sub-bands or up to 32 narrow band channels, in one unitwhether 2G, 2.5G, 3G, or 4G cellular, iDEN, TETRA, the recently auctioned 700 MHz or other frequency bands. Wireless operators can use the Node A to bring all of their outdoor frequency bands into small- and mid-size buildings, providing coverage for customers where they increasingly want to use handheld devices. The Node A is a cost-effective alternative to installing base stations and fiber-based distributed antenna systems (DAS), which typically are used for coverage inside large venues such as stadiums and airports. The Node A performs the same function but at lower costs. Andrews Node A is a digital multi-band repeater. With its multi sub-band frequency selection in combination with a passive distribution system it enables high quality voice and high speed data service in larger buildings where it was previously not available.

Besides the Wireless operator market another important application of the Node A is with building owners needing to support multiple forms of wireless communications including mission-critical systems. In the wake of national emergencies like Hurricane Katrina, US firefighters, police, and other first responders increased their demands for reliable ubiquitous radio coverage to ensure the publics safety, as well as their own. Many municipalities and counties across the US are adopting in-building coverage ordinances in response to these demands, requiring building owners and commercial developers to install wireless coverage equipment inside their buildings. Andrews Node A enables high rise developers, for example, to supply the two bands needed by local emergency personnel and market to tenants the remaining two bands for in-building cellular or broadband signals, helping recoup the cost.

Node A Cabinet with 3 RF Cards (Up to 4 are possible)

Cabinet Specifications

Node A Application Examples

Node A - The universal choice for selective transmission of interleaved sub-bands for amplification of Analog, GSM, EDGE, iDEN, TDMA, CDMA, W-CDMA, HSDPA, TETRA, Tetrapol, and WiMAX signals within multiple frequency bands.

Node A Advantages

• Multi-band repeater with up to 2 (Node A 2) or up to 4 (Node A 4) frequency bands
• Digital filtering for multi sub-band frequency selection up 60 MHz (Node A 2) or up to 120 MHz (Node A 4) in total
• Channel selective and/or band selective filtering
• Modular system with QN connectors for easy upgrade Auto wizard setup for easy installation
• Software defined for future proof operation
• Virtual test instruments
• SNMP and web-based GUI

For more information, email us: Contact Andrew/CommScope.

Andrews MRx18 miniRepeater is a bi-directional amplifier used increase signal strength between a mobile and a base station in indoor applications. The miniRepeater solution gives designers a simple tool to solve their small area coverage and performance issues. All prevalent standards are supported by the MRx18

Because of its small size it is ideal for medium sized offices, shops, and basements.

Due to the modular design it allows the operator to discover undreamed-of band segment combinations in only the same housing. The MRx18 single band miniRepeater can be extended up to a triple variable segment or a dual band variable version.

MRx18 Advantages

• Easy to install due to light weight, small dimensions and auto-gain functionality
• Auto-gain to cope with changing RF environment

Local Received Signal Strength Indicator (RSSI)

Easy commissioning via web-based LMT (Ethernet)

• Variable bandwidth with up to 25 MHz
• Automatic level control (ALC)
• Multi-functional miniRepeater family modularity (triple segment or dual band)­
• Optional remote alarm monitoring

MRx18 Application Example

The MRx18 miniRepeater has an optional remote monitor function that provides equipment alarming via SMS. Alarms (Including heart beat) can be sent to the common Andrew OMC (A.I.M.O.S.) or to any standard SMS receiver. Moreover the MRx18 miniRepeater can be connected to LAN.

 
Alarming and Supervision Control via A.I.M.O.S 

For more information, email us: Contact Andrew/CommScope.