HP 11759C RF Channel Simulator, 50 MHz to 2700 MHz

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The HP 11759C RF channel simulator has all the features and performance characteristics that make it ideally suited for testing digital cellular radios under RF multipath conditions. Whether the radio is designed for operation with the GSM, NADC, DCS1800, or PDC cellular systems, it is easy to simulate the fast and slow fading, time dispersion, and Dopplers experienced in the mobile radio environment. The HP 11759C is also suitable for testing many other analog and digital wireless communications systems with RF bandwidths to 6.0 MHz under multipath fading conditions.

The HP 11759C consists of the application software and the RF processing hardware. To complete the RF multipath simulation system, two user-supplied components are necessary; a PC acting as a user-interface and a synthesized LO used to determine the RF operating frequency and to supply a 10 MHz clock signal. The HP 11759C contains two independent 40 MHz to 2700 MHz RF channels of three paths each. Each path can be Doppler shifted or Rayleigh or L og-normal faded, delayed, and attenuated relative to the others. In addition, under Rayleigh fading conditions, the correlation factor for path pairs in the two channels is adjustable from 0 to 1 in 0.1 steps.

For test applications requiring more paths per channel (e.g., GSM or DCS1800), the HP 11759C Option 001 configures the HP 11759C as one channel of six paths. By pairing two HP 11759C Option 001 units and controlling them from a single PC, the full 12-path testing requirements of the GSM and DCS1800 systems can easily be accomplished. And, to make it even easier, the 12- and 6-path propagation models are pre-stored in the PC's memory for easy recall and setup. Simple-to-use onscreen menus guide the user through the task of creating complex RF multipath signals for testing a mobile or base station radio. These same menus are accessed remotely by installing an HP-IB interface card in thePC.


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Partial Specifications

See technical data sheet for complete specifications

RF Channel Specifications

Independent RF Channels 2 of 3 paths each Option 001: 1 of 6 paths RF Input/Output Frequency Range 40 to 2700 MHz RF Bandwidth (1 dB): >6.0 MHz typically Path Insertion Loss: Typically 24 dB ±3 dB LO Input Frequency Range: RF input frequency less 6 MHz

Channel Simulation Specifications

Number of Independent Paths per Channel 3, Independent Rayleigh (Classical) fading, Delay, Doppler, and level available on each path Option 001: 6 Path Attenuation Range: 0 to 50 dB, in 0.1 dB steps Path Delay Interval Range: 0 to 186 ľs, in 1.0 ns steps (Delays to 1.48 ms are available by special order) Simulated Vehicle Speed Range at 900 MHz: 0 to ±509 km/h Simulated Doppler Range: 0 to ±425Hz Rayleigh (Classical) Amplitude Distribution Available on all paths for vehicle speeds from 1 to 509 km/h(at 900 MHz) Repetition Interval: >27 seconds Deviation from Rayleigh CDPF (typical) <±1.0 dB from +10 to -20 dB relative to the mean power <±3.0 dB from -20 to -30 dB relative to the mean power Level Crossing Rate Accuracy (+10 to -30 dB of the mean power level) typically deviates from theoretical <±5% of the simulated Doppler Remote Control: Available through optional HP-IB interface card installed in user-supplied PC controller.

General Specifications

Operating Temperature Range: 0 to +55 °C Specifications Warranted: +15 to +35 °C Power: 90 to 132/190 to 264 V 48 to 66 Hz 325 VA maximum Size: 425 mm W x 146 mm H x 620 mm D 16.8 in x 5.7 in x 24.4 in) Weight Net: 13.6 kg (30 lb) Shipping: 19 kg (42 lb)


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HP 11759C	RF Channel Simulator, 50 MHz to 2700 MHz
   Opt 001	One Channel of Six Paths
   Opt 002	Rear Panel Only RF Connectors
   Opt 003	One Channel of Six Paths with Rear Panel Only RF Connectors
   Opt 907	Front Panel Handle Kit
   Opt 908	Rack Mount Flange Kit
   Opt 909	Rack Mount Flange Kit with Handles
   Opt 910	Extra Operating and Service Manual
   Opt ABJ	Japan - Japanese localization
   Opt W30	Three-Year Additional Years of Return-to-HP Service
   Opt W50	Five-Year Additional Years of Return-to-HP Service


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HP 11759C RF Channel Simulator, Digital Specifications ( PDF)

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