Title:
C/N MEASUREMENT DATA TRANSMITTER
Document Type and Number:
Japanese Patent JP2612523
Kind Code:
B2
Abstract:
PURPOSE: To send a measured C/N ratio to a center equipment with high efficiency.
CONSTITUTION: When a MODEM 9 applies interrupt to a signal processing section 8 by a transmission request from a MODEM 11, and the signal processing section 8 sends a C/N ratio to the MODEM 11 from the MODEM 9. When a schedule time comes during the transmission of the MODEM 9 and the clock of the signal processing section 8 makes interruption, the signal processing section 8 interrupts the transmission from the MODEM 9 and allows a spectrum analyzer 1 to start the measurement of a reception level of an antenna and a noise level. Then the signal processing section 8 restarts the transmission of the MODEM 9. When the measurement of the spectrum analyzer 1 is finished during the transmission of the MODEM 9 and the interruption is implemented to the signal processing section 8, the signal processing section 8 interrupts the transmission from the MODEM 9, calculates and stores the C/N based on the level of the reception signal and the noise signal measured and allows the MODEM 9 to restart the transmission.
Inventors:
Masahiko Ishihara
Application Number:
JP12966392A
Publication Date:
May 21, 1997
Filing Date:
April 21, 1992
Export Citation:
Assignee:
Dayx Antenna Co., Ltd.
International Classes:
H04M11/00; (IPC1-7): H04M11/00
Domestic Patent References:
| JP60257637A |
Attorney, Agent or Firm:
Hiroshi Tanaka (2 outside)