Error detecting device for a radio blind zone system

Details Error detecting device for a radio blind zone system Error detecting device for a radio blind zone system

1994-05-20

1996-09-10

Eisenzopf, Reinhard J.

Telecommunications

Carrier wave repeater or relay system

Monitoring

455 14, 455 671, 455115, 330 2, 330298, H04B 1702

Patent

active

055554423

ABSTRACT:
In a radio blind zone system, a master unit and a slave unit are respectively situated at an existing station and a radio blind zone and connected together by a coaxial transmission path. The master unit feeds a load current to the slave unit which includes a relay amplifying device or a tower-top amplifying device. The master unit is capable of detecting an error occurred in the slave unit by detecting a change in the load current applied to the slave unit.

REFERENCES:
patent: 3210671 (1965-10-01), Lofting
patent: 3312791 (1967-04-01), Markl et al.
patent: 3370134 (1968-02-01), Johannesson et al.
patent: 4006320 (1977-02-01), Markl
patent: 4644288 (1987-02-01), Stanley
patent: 4878034 (1989-10-01), Gross et al.

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