Hewlett Packard 4937A & 4938A
Transmission Impairment Measurement Set, Refurbished

HP4937A contains a set of voiceband transmission tests -- level/frequency measurement, noise, and 2- and 4-wire return loss measurements. It also has the ability to seize and hold three types of E/M lines. In addition, the HP 4937A simulates signaling both from the central office and from the PBX at the network interface.

HP4938A provides additional network access and margin testing capabilities. It includes access to 4-wire simplexed leads, generating ringing signal, and providing access for loop current and ringing voltage measurement.

HP / Agilent 4937A Shown

Product Information
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