JPS5513534A - Frequency modulator - Google Patents
Frequency modulatorInfo
- Publication number
- JPS5513534A JPS5513534A JP8571178A JP8571178A JPS5513534A JP S5513534 A JPS5513534 A JP S5513534A JP 8571178 A JP8571178 A JP 8571178A JP 8571178 A JP8571178 A JP 8571178A JP S5513534 A JPS5513534 A JP S5513534A
- Authority
- JP
- Japan
- Prior art keywords
- modulation
- carrier frequency
- frequency
- deviation
- inputted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE: To obtain a modulation wave which has a large quantity of deviation, a small distortion and a small AM-property noise by dividing input signals in phase and modulating respective signals and synthesizing outputs.
CONSTITUTION: Input signals are distributed to the same amplitude and the opposite polarity by signal distributor 2 and are inputted to FM modulator circuits 3 and 5 and are subjected to opposite-polarity frequency modulation. In case that the carrier frequency of FM modulator circuit 3, a deviation quantity of this carrier frequency, the carrier frequency of FM modulator circuit 5, and the deviation quantity of this carrier frequency are denoted as 1MHz, 5KHz, 900KHz and 5KHz respectively, modulation waves have the level made equal to each other by level adjustment equipments 7 and 8 and are inputted to mixer 9. The FM wave of carrier frequency 100kHz and deviation quantity 10KHz is obtained from mixer 9. A good-linearity modulation can be performed by using a high frequency for modulation can be performed by using a high frequency for modulation.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8571178A JPS5513534A (en) | 1978-07-13 | 1978-07-13 | Frequency modulator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8571178A JPS5513534A (en) | 1978-07-13 | 1978-07-13 | Frequency modulator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5513534A true JPS5513534A (en) | 1980-01-30 |
JPS6220731B2 JPS6220731B2 (en) | 1987-05-08 |
Family
ID=13866404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8571178A Granted JPS5513534A (en) | 1978-07-13 | 1978-07-13 | Frequency modulator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5513534A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62133113A (en) * | 1985-12-03 | 1987-06-16 | Nippon Ester Co Ltd | Polyester fiber |
-
1978
- 1978-07-13 JP JP8571178A patent/JPS5513534A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62133113A (en) * | 1985-12-03 | 1987-06-16 | Nippon Ester Co Ltd | Polyester fiber |
Also Published As
Publication number | Publication date |
---|---|
JPS6220731B2 (en) | 1987-05-08 |
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