JPS6462926A - Radio repeating installation - Google Patents
Radio repeating installationInfo
- Publication number
- JPS6462926A JPS6462926A JP21925087A JP21925087A JPS6462926A JP S6462926 A JPS6462926 A JP S6462926A JP 21925087 A JP21925087 A JP 21925087A JP 21925087 A JP21925087 A JP 21925087A JP S6462926 A JPS6462926 A JP S6462926A
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- signal
- antenna
- reception
- gain
- 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
- Radio Relay Systems (AREA)
Abstract
PURPOSE:To prevent oscillation due to a detoured between transmission/ reception antennas by generating a transmission signal being the result of offsetting slightly a frequency of a reception signal in receiving a radio signal by an antenna and sending the signal from the transmission antenna. CONSTITUTION:The frequency of the radio signal received by the reception antenna 1 is offset slightly such as 100Hz by a frequency conversion section 9 and the resulting signal is sent from the transmission antenna 3 via an amplifier section 2. A level detector 7 detects the peak of a transmission signal and the gain of the amplifier 2 is controlled so that the peak value does not exceeds a specified value, such as a value lower than the saturated output of the amplifier section 2 by 10dB. Thus, the relay gain is controlled depending on the change in the coupling quantity between the transmission and reception antennas 1 and 3 and the optimum gain is ensured always for the repeater. The tilted device is suitable for a booster for automobile telephone set.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21925087A JPH0693640B2 (en) | 1987-09-03 | 1987-09-03 | Wireless repeater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21925087A JPH0693640B2 (en) | 1987-09-03 | 1987-09-03 | Wireless repeater |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6462926A true JPS6462926A (en) | 1989-03-09 |
JPH0693640B2 JPH0693640B2 (en) | 1994-11-16 |
Family
ID=16732578
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21925087A Expired - Lifetime JPH0693640B2 (en) | 1987-09-03 | 1987-09-03 | Wireless repeater |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0693640B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009525012A (en) * | 2006-01-27 | 2009-07-02 | クゥアルコム・インコーポレイテッド | Repeater open loop gain measurement |
-
1987
- 1987-09-03 JP JP21925087A patent/JPH0693640B2/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009525012A (en) * | 2006-01-27 | 2009-07-02 | クゥアルコム・インコーポレイテッド | Repeater open loop gain measurement |
US7974573B2 (en) | 2006-01-27 | 2011-07-05 | Qualcomm Incorporated | Repeater open loop gain measurement |
Also Published As
Publication number | Publication date |
---|---|
JPH0693640B2 (en) | 1994-11-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071116 Year of fee payment: 13 |