Aeroflex 2399C Spectrum Analyzers - AEROFLEX - #3

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For the very latest specifications visit www.aeroflex.com Harmonic Distortion DISTANCE TO FAULT SOFTWARE OPTION The 2399C spectrum analyzer is widely used by field installation and maintenance engineers for monitoring the spectral output from cell site transmitters. The new Distance to Fault (DTF) option allows measurement of VSWR of the RF feed cables and, in the event of failing test limits, will then perform a DTF (TDR) measurement to identify the faulty part of the feed system. Experience shows that one of the biggest causes of degradation or failure of RF communications systems is the transmission line from the base station transceiver to the antenna. Testing the Transmission Line When a new cell site is installed, the key measurement to test the quality of the installation is the VSWR (return loss) of the feed cable when terminated with the antenna system. Poor installation will result in unacceptable return loss (VSWR), reducing the quality of the system. Even a system that is well within specification when installed may degrade with time due to the effects of weather, corrosion or accidental damage. Fast Fault Location (DTF) The 2399C spectrum analyzer DTF option is designed to enable users to measure VSWR (return loss) routinely and quickly. In the event of failure, switching to DTF mode pinpoints the problem area so that corrective action can be taken. Distance to Fault Identifying the faulty component in the system and initiating a repair is simplified, resulting in less system down time. The 2399C DTF measurement is real time so it can identify even intermittent faults. Built-in Features The DTF software option comes with a built-in Transmission Line Database that contains the characteristics of the most commonly used coaxial cables. This eliminates the need to refer to manufacturers’ data sheets when configuring the 2399C for DTF operation. SPECIFICATION FREQUENCY Tuning Range 1 kHz to 3 GHz Resolution 1 Hz Frequency Span Width 100 Hz/div to 300 MHz/div in 1, 2, 5 step selections (auto-selected) Zero span and Full span (1 kHz to 3 GHz) Manual selection of Start, Stop and Span Span Accuracy ±3% of indicated span width Readout Accuracy ±(span accuracy + frequency standard accuracy + 50% of RBW) Stability Residual FM <100 Hz p-p at 1 kHz RBW, 1 kHz VBW, (p-p in 20 ms) Noise Sidebands -90 dBc/Hz at 10 kHz offset measured at 2.9 GHz -98 dBc/Hz at 100 kHz offset measured at 2.9 GHz FREQUENCY COUNTER Resolution 1 Hz, 10 Hz, 100 Hz, 1 kHz Accuracy ±(Reference frequency error + frequency readout accuracy + counter resolution ±1 count) Sensitivity <-70 dBm from 50 kHz to 3 GHz AMPLITUDE Measurement Range +30 dBm to -110 dBm Displayed Average Noise Level (DANL) 300 Hz RBW, 10 Hz VBW, 50 Ù termination -105 dBm @ 50 kHz to 100 kHz -110 dBm @ 100 kHz to 2.8 GHz -105 dBm @ 2.8 GHz to 3 GHz Pre-amp On (When fitted with internal pre-amplifier Option 7) -115 dBm @ 50 kHz to 100 kHz -130 dBm @ 100 kHz to 1.8 GHz -129 dBm @ 1.8 GHz to 3 GHz 1 dB Compression Point -10 dBm minimum 100 kHz to 3 GHz at 0 dB attenuation