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Titlebook: Carrier Communication over Power Lines; Heinrich-Karl Podszeck Book 19722nd edition Springer-Verlag, Berlin-Heidelberg 1972 communication.

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31#
發(fā)表于 2025-3-26 23:14:36 | 只看該作者
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
32#
發(fā)表于 2025-3-27 03:47:46 | 只看該作者
33#
發(fā)表于 2025-3-27 07:10:09 | 只看該作者
34#
發(fā)表于 2025-3-27 12:28:22 | 只看該作者
35#
發(fā)表于 2025-3-27 14:58:48 | 只看該作者
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.
36#
發(fā)表于 2025-3-27 20:15:50 | 只看該作者
37#
發(fā)表于 2025-3-27 22:49:20 | 只看該作者
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
38#
發(fā)表于 2025-3-28 05:03:43 | 只看該作者
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
39#
發(fā)表于 2025-3-28 08:13:23 | 只看該作者
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.
40#
發(fā)表于 2025-3-28 13:22:38 | 只看該作者
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