JPS62178633U - - Google Patents
Info
- Publication number
- JPS62178633U JPS62178633U JP6588186U JP6588186U JPS62178633U JP S62178633 U JPS62178633 U JP S62178633U JP 6588186 U JP6588186 U JP 6588186U JP 6588186 U JP6588186 U JP 6588186U JP S62178633 U JPS62178633 U JP S62178633U
- Authority
- JP
- Japan
- Prior art keywords
- electric field
- field strength
- detection circuit
- received signal
- noise level
- 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
- 230000005684 electric field Effects 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 9
- 230000003321 amplification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
Landscapes
- Circuits Of Receivers In General (AREA)
Description
第１図は本考案による電界強度検出装置の構成
を示すブロツク図、第２図は周波数と電界レベル
の関係を示すグラフ、第３図は空中線入力レベル
と電界レベルの関係を示すグラフ、第４図は空中
線入力レベルと雑音増幅出力レベルの関係を示す
グラフ、第５図は本考案による電界強度検出装置
の他の一つの実施例の構成を示すブロツク図であ
る。
１……アンテナ、２……高周波増幅器、３……
周波数変換器、４……局部発振器、５……中間増
幅器、６……雑音増幅検波器、７……電界強度検
波器、８……電界判定器、９……電界レベル表示
器に至る出力、１０……雑音レベル検出回路、１
１……雑音レベル基準比較回路、１２……電界強
度検出回路、１３……電界強度基準比較回路。
Figure 1 is a block diagram showing the configuration of the electric field strength detection device according to the present invention, Figure 2 is a graph showing the relationship between frequency and electric field level, Figure 3 is a graph showing the relationship between antenna input level and electric field level, and Figure 4 is a graph showing the relationship between antenna input level and electric field level. The figure is a graph showing the relationship between the antenna input level and the noise amplification output level, and FIG. 5 is a block diagram showing the configuration of another embodiment of the electric field strength detection device according to the present invention. 1...Antenna, 2...High frequency amplifier, 3...
Frequency converter, 4...Local oscillator, 5...Intermediate amplifier, 6...Noise amplification detector, 7...Field strength detector, 8...Electric field determiner, 9...Output leading to electric field level indicator, 10...Noise level detection circuit, 1
1... Noise level reference comparison circuit, 12... Electric field strength detection circuit, 13... Electric field strength reference comparison circuit.
Claims (1)
おいて、 (a) 上記受信した信号の電界強度を検出する電
界強度検出回路、 (b) 上記受信した信号の雑音のレベルを検出す
る雑音レベル検出回路、および (c) 上記電界強度検出回路出力が一定値を越え
、かつ上記雑音レベル検出回路出力が一定値以下
のとき、電界有りとして表示を行なう電界判定回
路 を含むことを特徴とする電界強度検出装置。[Claims for Utility Model Registration] A device for displaying the electric field level of a received signal, comprising: (a) an electric field strength detection circuit for detecting the electric field strength of the received signal; (b) a noise level display for the received signal; a noise level detection circuit to detect; and (c) an electric field determination circuit that displays an indication that an electric field is present when the output of the electric field strength detection circuit exceeds a certain value and the output of the noise level detection circuit is below a certain value. Characteristic electric field strength detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6588186U JPH0314841Y2 (en) | 1986-04-30 | 1986-04-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6588186U JPH0314841Y2 (en) | 1986-04-30 | 1986-04-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62178633U true JPS62178633U (en) | 1987-11-13 |
| JPH0314841Y2 JPH0314841Y2 (en) | 1991-04-02 |
Family
ID=30903365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6588186U Expired JPH0314841Y2 (en) | 1986-04-30 | 1986-04-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0314841Y2 (en) |
-
1986
- 1986-04-30 JP JP6588186U patent/JPH0314841Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0314841Y2 (en) | 1991-04-02 |
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