A-A-50728 Frequency Selective Levelmeter And Spectrum Display FslsdThis Commercial Item Description CID describes a frequency selective levelmeter and frequency selective levelmeter with spectrum display. This CID is meant as a minimum requirement for the equipment, in either configuration, and only those manufacturers that meet or surpass the requirements herein are qualified per this CID. The frequency selective levelmeter and/or spectrum display is referenced as a FSLSD, the equipment, or the test equipment.

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A-A-50728A

d. Resolution. Resolution for the equipment shall equal or better the following:

Signal level separation                 0 dB                             20 dB                             50 dB

3.    Level.

a.   Range. The equipment shall be capable of displaying levels in the following ranges:

Total       -109 dBm to +10 dBm (for zero level on display) Display    60 dB logarithmic (linear dB scale)

+40 dB to -20 dB (referred to 0 dB reading on levelmeter)

b.  Accuracy. The equipment shall have the same accuracy as reflected for the level meter in para 3.13.2.

c.   Frequency response. The frequency response for the equipment shall be within ±0.1 dB for full frequency span of 1 KHz to 25 MHz.

d.  Display linearity. The equipment shall have a vertical linearity of ±0.5 dB in the dB/cm mode and ±2 dB in the 10 dB/cm mode.

4.    IF Bandwidths. The equipment shall have the following sweep widths.

5.    Sweep Rate. The equipment shall be capable of providing the following sweep rates:

Sweep widths                                     Sweep rate

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