Radio frequency signal interface

Details Radio frequency signal interface Radio frequency signal interface

1990-10-15

1991-10-22

Karlsen, Ernest F.

Electricity: measuring and testing

Plural, automatically sequential tests

455226, G01R 1510, H04B 1700

Patent

active

050598929

ABSTRACT:
A multi-function, general purpose apparatus includes various instrument modules configured to perform a number of functions controlled by an internal processor, stored programs and user selected inputs. A five-port RF signal interface couples the apparatus to user equipment under test to allow a wide range of RF signal measurements over a wide range of test signal levels. The RF signal interface buffers the user equipment from the apparatus internal modules while providing a uniform attenuation of an RF test signal over the RF path to the desired internal module. Antenna, RF Input and Duplex ports provide apparatus connection to user equipment while signal generator and receiver ports provide internal apparatus connections. An apparatus internal processor is user and software controlled to provide automatic sweep tuning of RF interface filter sections and automatic sensitivity settings for the interface amplifier and attenuator sections. A preferred embodiment of the invention includes a multi-function general purpose test system particularly adapted to the testing and measuring of signals to and from RF apparatus.

REFERENCES:
patent: 4245352 (1981-01-01), Karpowycz et al.
patent: 4719459 (1988-01-01), Kovacs et al.

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