HP 54750A, User Manual, Page: 26 / 478

Typical insertion loss for cables is less than 1 dB , and can be as little as
0.1 dB . F or actual specications on your particular cable or accessory , refer to
the manufacturer .
Return loss
Return loss can be tested using a number of dierent test equipment
congurations . Some of these are:
an HP 8703A lightwave component analyzer
an HP 8702B lightwave component analyzer with the appropriate source ,
receiver and lightwave coupler
an HP 8504B precision reectometer
an HP 8153A lightwave multimeter and HP 81534A return loss module
Many other possibilities exist. The basic requirements are an appropriate
lightwave source , a compatible lightwave receiver , and a compatible
lightwave coupler .
Refer to the manuals provided with your lightwave test equipment for
information on how to perform a return loss test.
Typical return loss for single mode units is better than 40 dB . F or actual
specications on your particular cable or accessory , refer to the manufacturer .
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