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DRT4201A- Interference Test Receiver

An Advanced Platform for Interference Detection and Identification

Preliminary

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DRT4201A

DESCRIPTION

The DRT4201A is an advanced platform providing unique measurement capability to address the problem of interference in wireless cellular networks. Effective techniques including the latest in digital signal processing (DSP) and microprocessor technology have been combined with advanced receiver technology to create a test solution with the following capabilities:

  • Support for a single protocol covering all appropriate bands, including both forward and reverse channels.
  • Advanced spatial processing and timing techniques for improved interference investigation.
  • Coherent receiver technology
  • Real-time direct detection and identification of interferers.
  • Additional Measurements for Host Application Interference Methods.
  • Support for up to 2,000 user scheduled measurement entries .
  • Integrated Spectrum Analysis Tool for all protocols and bands.
  • Support of most popular drive test measurements along with data decoding capability beyond normal drive-test scanners.
  • Support of indoor IS-95 pilot measurements without the need for GPS.
  • Ability for time slot based measurements for IS-136 and GSM.
  • 100 Mbps Ethernet interface to the host allows for high throughput of logged test data and remotable operation.
  • Small size and low weight.
  • Low power

Measurements Supported

GSM Receiver:

Channel Average Power
CW Power
Time Slot Power
Spectral Display
RF Channel BSICs
RFN
TQB Offset
Channel Profile
Interference Offset
Cell Identity
MCC/MNC/LAC
RACH Parameters
Neighbor Cell List
Cell Selection Parameters
GPRS Indication
Other Broadcast Messages
Forward and Reverse Channel Support
EDGE Modulation Support* GPRS PBCCH Info

WCDMA Receiver:*

Primary and Secondary Pilots Scans
Receive Diversity Enhancement
PSCH,SSCH Scans
PCCPCH Messages
Spectral Display
Pilot Multipath
Code Domain
Slot Format
Forward and Reverse Channel Support

* Future

 

 IS-136 Receiver:

Channel Average Power
CW Power
Time Slot Power
Spectral Display
SAT, DCC,
RF Channel DVCCs Channel Profile
Interference Time
System Identity
DCCH Structure
Neighbor Cell Information
Registration Parameters
Access Parameters
Selection Parameters
Other Broadcast Messages
Forward and Reverse Channel Support

cdma2000 Receiver:

GPS Assisted Pilot Scan Indoor Pilot Scan
Receive Diversity Enhancement
Spectral Display
Pilot Multipath
Code Domain
System Parameters
Access Parameters
Neighbor Cell List
Channel List
Quasi Orthogonal Channels
1XRTT, 1XEV-DO/DV Support*
Sync Message
Forward and Reverse Channel Support

 

WLAN Receiver:

Channel Average Power
Packet Length
Protocol Version
Packet Type
Packet Subtype
STA-AP, AP-AP Indication
WEP Indication
BSSID
MAC Parameters
Rate/Symbol Type
Code Multipath
Diversity Enhancement
Spectral Analysis

 

Radio Specifications

Band Coverage:
Selected protocol bands in the range of 400-2500 MHz.
Amplitude Accuracy    -100dBm to -25 dBm,  +/- 1dB
RSSI Scan Rate         
Contiguous, single protocol,  150 channels/sec

Pilot Scan Time:
GPS assist IS-95/cdma2000:  500 msec
Indoor IS-95/cdma2000:  1400 msec
WCDMA: 480 msec
Frequency Accuracy:       0.06 ppm
Noise Figure:    10.0 dB
Input 3rd Order Intercept:    -5 dBm
Phase Noise:  -90 dBc at 10 kHz offset
VSWR:     2.5:1
Internal Generated Spurs:   -110 dBm
Maximum Safe Input: +15 dBm

Standard system ships with:

  • External AC Power Adapter & cables
  • User Requested Protocol
  • Basic Measurements
  • User-friendly software with online help
  • Ethernet crossover cable
  • Omni-directional Cellular/PCS Band antennas with magnetic mount and coaxial cable
  • Carrying Case
  • Battery Cable
  • Cigarette Lighter Adapter Cable

 

Interfaces

Host Link RJ45 - Ethernet 100 Base T
RF Input SMA - 50 Ω
Internal GPS SMB - 50 Ω
External GPS Data Mini DIN – RS232
Dead Reckoning Input Mini DIN

Physical

Dimensions:  

1.2”H x 6.1” W x 6.7”D
( 1.2”H x 6.1” W x 6.7”D)
Weight: 2.9 lbs. (1.32 kg)
Operating Temp:    0° to +50°C
(+32 to +122 ° F)
Power Consumption:    15 W
Power Required:  6-34 VDC

 

 

 

 

Host Application OS: Windows 2000, NT, XP


Options:

  • Fully configured Laptop including installed Ethernet card & CD-ROM Drive
  • Application Programming Interface Drivers and Documentation
  • Internal GPS
  • Internal GPS with Dead Reckoning
  • Training Video on CD-ROM
  • Advanced Measurements

Specifications subject to change without notice. Copyright 2004 DRT, Inc. All rights reserved.