JPS555578A - Synthesizer receiver - Google Patents
Synthesizer receiverInfo
- Publication number
- JPS555578A JPS555578A JP7937678A JP7937678A JPS555578A JP S555578 A JPS555578 A JP S555578A JP 7937678 A JP7937678 A JP 7937678A JP 7937678 A JP7937678 A JP 7937678A JP S555578 A JPS555578 A JP S555578A
- Authority
- JP
- Japan
- Prior art keywords
- sweep
- counter
- channel selection
- automatic
- manual
- 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
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Superheterodyne Receivers (AREA)
Abstract
PURPOSE: To make automatic sweep for the station in normal frequency allocation, by presetting the numeral of the auxiliary counter to the sweep counter, in selecting the channel selection from manual sweep of small channel selection step to the automatic sweep of greater channel selection step.
CONSTITUTION: In the PLL synthesizer producing the local oscillating frequency fo, the channel selection operation is made by changing the frequency dividing ratio of the programmable frequency divider 1 by the sweep counter 5. In this case, the auxiliary counter 8 operated parallelly with the sweep counter 5 is provided. At the automatic sweep for greater channel selection step, the counter 8 is changed with the same numeral as the counter 5 and at the manual sweep of smaller channel selection step, the counter 8 is changed while keeping greater step. Further, at the selection from manual to automatic operation, the value of the auxiliary counter 8 is preset to the sweep counter 5. Accordingly, normal channel selection can be made again at the automatic sweep.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53079376A JPS5910612B2 (en) | 1978-06-28 | 1978-06-28 | synthesizer receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53079376A JPS5910612B2 (en) | 1978-06-28 | 1978-06-28 | synthesizer receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS555578A true JPS555578A (en) | 1980-01-16 |
JPS5910612B2 JPS5910612B2 (en) | 1984-03-10 |
Family
ID=13688144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53079376A Expired JPS5910612B2 (en) | 1978-06-28 | 1978-06-28 | synthesizer receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5910612B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0226329Y2 (en) * | 1984-12-27 | 1990-07-18 | ||
JPH01158717U (en) * | 1988-04-25 | 1989-11-02 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4862320A (en) * | 1971-12-03 | 1973-08-31 |
-
1978
- 1978-06-28 JP JP53079376A patent/JPS5910612B2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4862320A (en) * | 1971-12-03 | 1973-08-31 |
Also Published As
Publication number | Publication date |
---|---|
JPS5910612B2 (en) | 1984-03-10 |
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