It uses a synthesized frequency source, transmitted in 50µsec bursts, to cover a selected frequency bandwidth in a step size that depends on the resolution selected. The measurements are then averaged over a selected number of frames (32 to 8196). 

A microwave link exhibits a number of in-band spurious interferences (such as CW or modulated carriers within the IF band) caused by cross polarization from other links, cross talk . This in-band interference is not coherent with BMLA Probe signal and appears as uncorrelated noise to the BMLA. The uncorrelated noise at the BMLA input is averaged out and does not have an effect on BMLA measurements. A traditional MLA uses a sweep frequency approach, which integrated these spurious responses as if they were valid information, thereby giving faulty readings.

The BMLA, Model 140-DSP automatically graphs and displays system characteristics as a function of frequency. Using a PC with a compatible graphics printer, the operator can get fast hard copy outputs replicating the screen display. In actual operational satellite link tests, a BMLA is able to meet its accuracy specifications with a -3 dB carrier-to-noise ratio.

Operation is easily controlled via user friendly Windows menus. Factory preset or user defined masks may be overlaid onto the graphic measurement display. Frequency resolution and averaging time may be easily changed to trade off accuracy versus measurement time, allowing quick checks in as little as 5 seconds, including graphic display. Using the BMLA, an operator can perform a complete equalization in 45 minutes. The new BMLA, Model 140-DSP not only is a highly capable system but is competitively priced.

Features:
- Increased Link Availability  
- Improved Quality of Service  
- Easy to Set-up and Operate  
- On-Line Non disruptive Equalization  
- Electrical Path Length Measurement Mode  
- Compatible with new Low Cost TDMA Terminals  
- Automatic Measurement of Amplitude and Group Delay across the Frequency band  
- CE Compliant  European Standard  
- Recommended by INTELSAT and  EUTELSAT  
- Low Cost