HP 85902A Burst Carrier Trigger for Digital Wireless Communications

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Take the misery out of performing transmitter tests such as power versus time and adjacent channel power. No longer do you need to search for a timing signal or waste your efforts on homemade trigger circuits. Never again will you have to wire into your radio-under-test.

The HP 85902A burst carrier trigger provides a TTL timing reference that allows your spectrum analyzer to reliably trigger directly off the RF signal when performing transmitter tests. With an input range of 60 dB and a separate built-in preamplifier for greater sensitivity, you have the ability to trigger on a wide range of transmitter power levels.

For detailed specifications refer to the HP 85902A Product Overview literature number 5091-7292E.


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[ Summary ][ Features ][ Specifications ][ Key Literature ][ Ordering ][ Assistance ][ Related ]

Electrical Characteristics

Trigger Frequency Range: 10 MHz to 2000 MHz Burst Burst RF Rate: 25 Hz to 500 Hz Minimum Burst Width: 100 µs Trigger Output Delay: <20 µs for RF input >–25 dBm Jitter: <2 µs (on a consistent burst signal) Level: TTL/CMOS logic level RF Input Amplitude Range: –30 dBm to +30 dBm Preamplifier Frequency Range: 10 MHz to 2000 MHz Gain Versus Frequency 10 to 350 MHz: >18 dB 350 to 1000 MHz: >16 dB 1000 to 2000 MHz: >12 dB Noise Figure: <10 dB Output Power at 1 dB Gain Compression: >+10 dBm

Front and Rear Panel Characteristics

Front Panel Inputs and Outputs Preamp In: 50 ohm, BNC female Preamp Out: 50 ohm, BNC female RF Input: 50 ohm, BNC female Rear Panel Outputs and Features Trigger Out: TTL/CMOS, BNC female Input Trigger Threshold Adjustment: Screwdriver adjustable potentiometer Trigger Indicator: LED, red

Environmental

Temperature Range Operating: 0 °C to +55 °C Storage: –40 °C to +75 °C Humidity: 95% relative humidity (MIL-T28800E class 3)

General Specifications1

+15 Vdc at 100 mA –12.6 Vdc at 40 mA Dimensions (nominal) Length: 150 cm (6 in.) Width: 80 cm (3 in.) Height: 30 cm (1 in.) Weight (nominal): 341 grams (12 oz) 1Power is supplied by the probe power connector on the front panel of the HP spectrum analyzer.


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HP 85902A     Burst Carrier Trigger for Digital Wireless Communications
  Opt 001     Adds mounting flanges
  Opt OBN     Extra manual

Recommended Spectrum Analyzers
HP 8590A      Series with option 105
HP 8590E      Series with option 105
HP 8560E      Series

Mobile communication measurement personalities for HP 8590 series spectrum analyzers
HP 85715B     GSM
HP 85717A     CT2-CAI
HP 85718B     NADC-TDMA
HP 85720C     PDC
HP 85722B     DCS-1800
HP 85723A     DECT
HP 85725B     CDMA
HP 85726B     PHS

All orders include the following:

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HP 85902A Burst Carrier Trigger for Digital Wireless Communications, Product Overview

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Related Information:


Related HP 8560 E-Series High-Performance Spectrum Analyzers product datasheets:



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