Moreover, the development of better frequency control, and especially directional antennas, made it possible for additional stations to operate on the same or closeby frequencies without significantly increasing interference.
32.
The IEEE 1588 Ver . 2 precision time protocol standard specifies a method of time synchronization and frequency control of electronic system elements generally interconnected by wired or optical Ethernet.
33.
An electrical power system containing a 10 % contribution from PV stations would require a 2.5 % increase in load frequency control ( LFC ) capacity over a conventional system.
34.
While frequency control down to 1-2 hertz accuracy is achievable, this is undesirable, since the cancellation of signals would wipe out the signal at the receiver for up to a second.
35.
Unlike the other OPNs with ADPCM, the YM2612 does not provide any timing or buffering of samples, so all frequency control and buffering must be done in software by the host processor.
36.
They also installed a new 1000 watt transmitter with automatic frequency control and new speech amplifiers at their plant in Coytesville NJ . These upgrades improved the range and sound quality of their broadcast.
37.
Maev currently serves as a member of the Editorial Advisory Board of the Journal of Research in Nondestructive Evaluation and as an Associate Editor of the IEEE " s Transaction in Ultrasonics, Ferroelectrics and Frequency Control.
38.
There may also be controls for the supply of electricity to the switchboard, coming from a generator or bank of electrical generators, especially frequency control of AC power and load sharing controls, plus gauges showing frequency and perhaps a synchroscope.
39.
Transmission lines also have other devices in series which can heat up and fail, such as current transformers which are connected to monitoring equipment and to protective relays, and wavetraps, which isolate radio frequency control signals passing along the transmission lines.
40.
However the resonant frequency of a tuned circuit is not very stable; variations in temperature and aging of components caused frequency drift . Automatic frequency control ( AFC ) solves some of the drift problem, but manual retuning was often necessary.
