Model #490B-1

Telephone test set (NSN 6625-00-126-0217)

Special Features
Carrier frequency range 100 hz to 600 khz; 5 digit frequency counter readout
Ac Voltage Rating
115.0 volts or 230.0 volts
Frequency Rating
Between 47.0 hertz and 63.0 hertz
Electrical Power Source Relationship
Operating
Inclosure Feature
Single item w/housing
Test Type For Which Designed
Envelope delay measurement
Phase
Single
Functional Description
Envelope delay measuring set consists of a transmitter and receiver which measures delay versus frequency and amplitude versus frequency in transmission systems and neworks. Frequency range 100hz to 552khz
Reference Data And Literature
To 33a1-5-342-1
Supplementary Features
Manufacturers name: envelope delay distortion test set
Description
Test Set,telephone
Cage Code
03860

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Updated: 04/27/2024