Specifications

24
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Bird
®
7020 Series Power Sensor
Bird’s
®
new 7020 Power Sensor is an economical plug andplay solution to
your power measurement needs. The 7020 determines and reports Forward
and Reflected True Average Power and VSWR over a wide frequency range
of 350 MHz to 4.0 GHz. It also never requires field calibration, only requires
factory calibration once per year, and is traceable to National Institute of
Standards and Technology (NIST).
PROBLEMS
Reliability
Fault Detection
System Testing
SOLUTIONS
All tower top ports protected byinternal surge
supressors
Two independent Quad LNA’s inthe tower top
Microprocessors continuouslymonitor amplifiers
and will switchtower top LNA’s when fault de-
tected. At a glance status report-ing and form-C
contacts switchingwhen alarm detected
APPLICATIONS
The TTA is designed to increase the
performanceof a Base Transceiver Station (BTS)
while ensuringreliable communications for
critical Public Safetyapplications.
This increase in sensitivity can make up for
theimbalance between mobile and handheld
users incritical systems.
The TTA is used when cable losses exceeds 1.5 dB
PROBLEMS
Have analog, digital, and multi-carrier signals to
measure
Tight budget
Downtime is unacceptable
Varying field tech skilllevels
Need confidence inmeasurement
SOLUTIONS
Modulation independent measurements
Inline device, no directional coupler required
Complimentary Virtual Power Meter
(VPM2) application
Monitor and perform maintenancefor monitoring
while DUT is in-service
Measure forward and reflectedpower to
troubleshoot system failures
Sensor plugs and plays with multiple
display devices.
No field calibration required
NIST traceable calibration
APPLICATIONS
WPS measures: Analog Cellular, Digital Cellular,
3G, 4G,Tetra, APCO/P25, Trunking, CDMA,
TDMA, WCDMA, GSM,Transportation, Tactical
Military, Radar, Avionics, Marine, LMR, Analog
Broadcast, Digital Broadcast, GSM, GPRS,EDGE,
UMTS, HSDPA, Bluetooth, Fire, GPS, NPSPAC,
Pag-ing, Project 25, Public Safety, Telematics,
Utilities, WIMAX and WLAN.
Measurements performed: Forward and Refl ected
Calculations Performed: VSWR and True Average
Power
NAVAIR
TECHNOLOGIES
Bird
®
Compact AutoQuad
TM
Tower Top Amplifi er System
429B-83H-01
Bird Technologies Group, TX RX Systems brand, Auto Quad Tower-Top Amplifier (TTA)
system is a high performance, quadrature-coupled low noise amplifier (LNA).
The TTA operates independently, monitoring LNA current and automatically switching to
a redundant LNA in the rare event of failure. Status reportingis accomplished via AISG
compliant telemetry between the controlling processor in the Tower Box and the base
control unit. The base control unithas an on board AISG modem device which does not
require the use of anexternal data cable. This telemetry does not interfere with RF Signals
in anyway and communicates the LNA currents, temperature and operational status to the
base control unit LCD display. Test modes and manual switching between LNA’s is also
accomplished by way of the telemetry system.
The TTA consists of two components: the tower top amplifier mounted close to the antenna and
the control unit. The control unit is available in two styles, either with or without a receiver multicoupler. In order to reduce the size of
the TTA and simultaneously provide 120 dB of isolation of a TX carrier, filtering has been split between the TTA and the base unit.