JPH02111916U - - Google Patents
Info
- Publication number
- JPH02111916U JPH02111916U JP1767389U JP1767389U JPH02111916U JP H02111916 U JPH02111916 U JP H02111916U JP 1767389 U JP1767389 U JP 1767389U JP 1767389 U JP1767389 U JP 1767389U JP H02111916 U JPH02111916 U JP H02111916U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- oscillation signal
- local oscillation
- amplifier
- amplifies
- 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.)
- Pending
Links
- 230000010355 oscillation Effects 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Superheterodyne Receivers (AREA)
- Noise Elimination (AREA)
Description
第１図はこの考案の一実施例による周波数変換
装置の構成を示すブロツク図、第２図は従来の周
波数変換装置の構成例を示すブロツク図である。
３……選局操作部、４……局部発振器、５……
増幅器、７……周波数混合器、１０……ＢＰＦ。
FIG. 1 is a block diagram showing the structure of a frequency converter according to an embodiment of the invention, and FIG. 2 is a block diagram showing an example of the structure of a conventional frequency converter. 3...Tuning selection operation unit, 4...Local oscillator, 5...
Amplifier, 7...Frequency mixer, 10...BPF.
Claims (1)
数混合器の入力端との間に通過周波数可変のバン
ドパスフイルタを備え、前記通過周波数と前記局
部発振信号の周波数とを連動して可変することを
特徴とする周波数変換装置。 A bandpass filter with a variable pass frequency is provided between an output end of an amplifier that amplifies the local oscillation signal and an input end of the frequency mixer, and the pass frequency and the frequency of the local oscillation signal are varied in conjunction with each other. Features of frequency conversion device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1767389U JPH02111916U (en) | 1989-02-17 | 1989-02-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1767389U JPH02111916U (en) | 1989-02-17 | 1989-02-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02111916U true JPH02111916U (en) | 1990-09-07 |
Family
ID=31231665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1767389U Pending JPH02111916U (en) | 1989-02-17 | 1989-02-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02111916U (en) |
-
1989
- 1989-02-17 JP JP1767389U patent/JPH02111916U/ja active Pending