標題: Titlebook: Carrier Communication over Power Lines; Heinrich-Karl Podszeck Book 19722nd edition Springer-Verlag, Berlin-Heidelberg 1972 communication. [打印本頁] 作者: 拖累 時間: 2025-3-21 18:05
書目名稱Carrier Communication over Power Lines影響因子(影響力)
書目名稱Carrier Communication over Power Lines影響因子(影響力)學科排名
書目名稱Carrier Communication over Power Lines網(wǎng)絡公開度
書目名稱Carrier Communication over Power Lines網(wǎng)絡公開度學科排名
書目名稱Carrier Communication over Power Lines被引頻次
書目名稱Carrier Communication over Power Lines被引頻次學科排名
書目名稱Carrier Communication over Power Lines年度引用
書目名稱Carrier Communication over Power Lines年度引用學科排名
書目名稱Carrier Communication over Power Lines讀者反饋
書目名稱Carrier Communication over Power Lines讀者反饋學科排名
作者: arousal 時間: 2025-3-21 20:53
Communication Circuits in the Power Network,es it provides the shortest connection between the communicating stations. Compared with open-wire communication lines, it has a better insulation and an appreciably higher mechanical strength. Damage caused by adverse weather conditions is therefore a very rare occurrence. Besides, a power line car作者: Mercurial 時間: 2025-3-22 01:08 作者: Parallel 時間: 2025-3-22 06:31 作者: 鐵塔等 時間: 2025-3-22 12:07 作者: 淡紫色花 時間: 2025-3-22 14:51 作者: 淡紫色花 時間: 2025-3-22 20:05
Appendix,oth to the power current frequencies of 16 2/3 Hz, 50 Hz and to the carrier frequencies of 15 kHz to 500 kHz as used in power line communication systems. The frequency . refers to the number of oscillations per second, from which the “wave length” can be determined as 作者: 嚴厲譴責 時間: 2025-3-22 22:02 作者: 使?jié)M足 時間: 2025-3-23 03:46 作者: 危機 時間: 2025-3-23 07:29 作者: assent 時間: 2025-3-23 11:17
Carrier Communication Terminals,minals were designed exclusively for telephone conversation. When remote supervision and control entered the picture at some later date, the first carrier terminals built were again of the single-purpose type and their transmission band was chosen so as to fit into the allocation scheme established for the speech frequencies.作者: 忘川河 時間: 2025-3-23 16:26 作者: grenade 時間: 2025-3-23 20:59
ment in electric system operation. Being restricted to power networks, it has a comparatively limited scope. Nevertheless, great efforts are being ex- to keep pace with the demands made pended on technical advancement of both power and communication engineering. As in previous editions of this book,作者: 委屈 時間: 2025-3-23 22:47 作者: 小教堂 時間: 2025-3-24 04:56
Communication Circuits in the Power Network, an appreciably higher mechanical strength. Damage caused by adverse weather conditions is therefore a very rare occurrence. Besides, a power line carrier communication system saves the cost of constructing a separate line.作者: 賞錢 時間: 2025-3-24 06:47 作者: peak-flow 時間: 2025-3-24 12:20
Measuring Methods and Measuring Equipment,oximate picture of signal attenuation in the carrier channel. Vacuum tube voltmeters were used to measure the HF voltages in the receivers and in by-pass circuits having no telephone stations connected to them.作者: 不適 時間: 2025-3-24 17:53 作者: 坦白 時間: 2025-3-24 21:26
Properties of Power Lines in the Carrier Frequency Range,quency. Energy losses, in particular, increase rapidly at higher frequencies. The attenuation of the line is a measure of energy losses. (Appendix 9.5). It is a function of loss resistance and the characteristic impedance of a line.作者: 小臼 時間: 2025-3-25 00:56 作者: 弓箭 時間: 2025-3-25 05:28 作者: transient-pain 時間: 2025-3-25 09:22 作者: 痛恨 時間: 2025-3-25 12:36 作者: HEDGE 時間: 2025-3-25 18:32 作者: CHASM 時間: 2025-3-25 23:24 作者: Anticoagulants 時間: 2025-3-26 02:28
Start mit einem Groupware System,Supply of electrical energy to large areas through overhead transmission lines has been expanded to a point where an extensive communication network has become an indispensable aid in system management. The communication media are used for作者: 羽毛長成 時間: 2025-3-26 06:53
Start mit einem Groupware System,The limits of the repeatedly mentioned frequency range from 15 kHz. to 500 kHz, which is made available for carrier communication over power lines, are determined by physical and economical conditions, partly also by administrative regulations.作者: 一個攪動不安 時間: 2025-3-26 09:20 作者: 樹膠 時間: 2025-3-26 16:42 作者: 調(diào)情 時間: 2025-3-26 18:43 作者: Irrepressible 時間: 2025-3-26 23:14
Appendix,oth to the power current frequencies of 16 2/3 Hz, 50 Hz and to the carrier frequencies of 15 kHz to 500 kHz as used in power line communication systems. The frequency . refers to the number of oscillations per second, from which the “wave length” can be determined as 作者: 安慰 時間: 2025-3-27 03:47 作者: 四目在模仿 時間: 2025-3-27 07:10 作者: Indelible 時間: 2025-3-27 12:28 作者: NICHE 時間: 2025-3-27 14:58
Open Source Knowledge Management type of traffic, a further classification is made into “telephone networks” consisting of a number of “telephone districts”, “teleprinter networks”, and “telemetering networks”. A “carrier frequency district” includes transmitters and receivers tuned to the same frequency.作者: penance 時間: 2025-3-27 20:15 作者: gusher 時間: 2025-3-27 22:49
Open Source Knowledge Managementwere essentially of a subjective nature. Objective measurements were exceptional cases. A frequency meter of the variety used in radio transmission systems was relied upon to adjust the oscillators as accurately as possible and to tune the resonant traps. The carrier output of the transmitter was me作者: Omnipotent 時間: 2025-3-28 05:03
Legacykonzepte der Netzwerkredundanzoth to the power current frequencies of 16 2/3 Hz, 50 Hz and to the carrier frequencies of 15 kHz to 500 kHz as used in power line communication systems. The frequency . refers to the number of oscillations per second, from which the “wave length” can be determined as 作者: 反復拉緊 時間: 2025-3-28 08:13
Open Source Knowledge Management type of traffic, a further classification is made into “telephone networks” consisting of a number of “telephone districts”, “teleprinter networks”, and “telemetering networks”. A “carrier frequency district” includes transmitters and receivers tuned to the same frequency.作者: Infuriate 時間: 2025-3-28 13:22 作者: 無意 時間: 2025-3-28 16:52
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