PREMO enhances its receiver antennas
range with the new RCA-ROD series (radio clock antenna), an antenna for
synchronized clocks and ripple control (tariff switching, public lighting control, smart metering,
etc.), which consist into a parallel resonant tank.
The ferrite core
standard dimension is 10x40mm. Other antenna dimensions are available under
antenna can be set and tuned in different frequencies from 40 to 139kHz, for
clock applications (synchronization with atomic clock, 40 and 60kHz in Japan,
77.5 kHz in Germany, etc.) and power control and management applications
management), lighting controls, smart metering, etc.
There are several
clock signal and long wave transmitters for the power control (radio ripple
control): DCF77-77.5kHz(Germany), HBG-75kHz (Switzerland), MSF-60kHz (United
Kingdom), JJY-40&60kHz (Japan), WWVB-60kHz (USA), DCF49 (Germany): 129,1kHz
(Mainfligen transmitter, 100kW), y 139kHz (Burg transmitter, 50kW), 135,6kHz
(Laikhegy, Hungary, transmitter 100kW) to cover different zones.
These long wave
transmitters use FSK modulation with frequency precision of +/- 107 Hz and
signal speed of 200 Bd.
In a precision
receiver antenna design configured with a resonant tank is very important the
quality factor of the circuit, which is a combination of the "Q" of
the coil and "Q" of the capacitor.
The higher is the
quality factor, the more sensitivity will have the signal reception of the
antenna. (f.e.m will be increased in the tank), but on the contrary, the
bandwidth of the resonant circuit becomes narrower. So, small variations in the
inductance (L) or capacity (C) could cause a shift in the operating frequency
and therefore a significant loss of receiving signal; thus compromise is
established of quality factor "Q" to assure the proper operation of the
What makes this movie stand out from the typical high school sports story is that the teenagers are undocumented immigrants, and the big game is a NASA-sponsored marine robotics competition. Like many other Hollywood movies, however, Spare Parts only tells part of the story. What the film shows -- and doesn’t show -- raises important issues affecting STEM education in the US.
Instead of sifting through huge amounts of technical data looking for answers to assembly problems, engineers can now benefit from 3M's new initiative -- 3M Assembly Solutions. The company has organized its wealth of adhesive and tape solutions into six typical application areas, making it easier to find the best products to solve their real-world assembly and bonding problems.
Load dump occurs when a discharged battery is disconnected while the alternator is generating current and other loads remain on the alternator circuit. If left alone, the electrical spikes and transients will be transmitted along the power line, leading to malfunctions in individual electronics/sensors or permanent damage to the vehicle’s electronic system. Bottom line: An uncontrolled load dump threatens the overall safety and reliability of the vehicle.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.