70/140 MHz IF CONVERTER FOR BROADBAND RADIO RELAY SYSTEMS.

被引：0

作者：

Barth, Hermann

Dittl, Karl

机构：

来源：

Siemens Review | 1976年 / 43卷 / 05期

关键词：

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Radio relay systems with a capacity of 2700 voice channels have been operating of late with an IF of 140 MHz in addition to the conventional IF of 70 MHz. In special cases it may be necessary to interconnect radio relay equipment operating with different IFs. The described IF converter can be used in such cases to establish a simple interconnection at IF. Its concept and technical realization are outlined and typical data given.

引用

页码：218 / 220

共 50 条

[41] Photonics-based tunable and broadband radio frequency converter
Borges, Ramon Maia
Mazzer, Daniel
Rufino Marins, Tiago Reis
Sodre, Arismar Cerqueira, Jr.
OPTICAL ENGINEERING, 2016, 55 (03)
[42] OPTIMUM DESIGN FOR DIGITAL RADIO RELAY SYSTEMS
HENTINEN, VO
IEEE TRANSACTIONS ON COMMUNICATION TECHNOLOGY, 1971, CO19 (06): : 1211 - +
[43] RADIO RELAY SYSTEMS FOR OLYMPIC GAMES IN MEXICO
CARL, H
ELEKTROTECHNISCHE ZEITSCHRIFT B-AUSGABE, 1968, 20 (06): : 137 - &
[44] PERFORMANCE OF DIGITAL RADIO-RELAY SYSTEMS
HART, G
BRITISH TELECOMMUNICATIONS ENGINEERING, 1984, 3 (OCT): : 201 - 209
[45] REDUCTION OF BANDWIDTH REQUIREMENTS FOR RADIO RELAY SYSTEMS
JACOBY, DL
LEVINE, RH
MACK, A
MEYERHOFF, A
PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1958, 46 (03): : 650 - 650
[46] WHITE NOISE EVALUATION OF RADIO RELAY SYSTEMS
不详
ELECTRONIC ENGINEERING, 1969, 41 (495): : 50 - &
[47] RELIABILITY OF MICROWAVE RADIO-RELAY SYSTEMS
ELKINS, NA
POST OFFICE ELECTRICAL ENGINEERS JOURNAL, 1968, 61 : 143 - &
[48] DIGITAL RADIO-RELAY SYSTEMS IN NTT
KUWABARA, M
JAPAN TELECOMMUNICATIONS REVIEW, 1977, 19 (02): : 107 - 114
[49] SOLAR RADIO SPECTROGRAPH FOR FREQUENCY RANGE 70-810 MHZ
TLAMICHA, A
BULLETIN OF THE ASTRONOMICAL INSTITUTES OF CZECHOSLOVAKIA, 1974, 25 (03): : 163 - &
[50] SPECIAL APPLICATIONS OF RADIO-RELAY SYSTEMS
不详
TELECOMMUNICATION JOURNAL, 1992, 59 (01): : 8 - 9

← 1 2 3 4 5 →