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Tag: frequencies
Electricity Can Flow Through Graphene At High Frequencies Without Energy Loss
2016-03-08 04:20:35| wirelessdesignonline News Articles
Electrical signals transmitted at high frequencies lose none of their energy when passed through the ‘wonder material’ graphene, a study led by Plymouth University has shown.
Tags: high
without
loss
energy
AT&T and Telcel awarded 4G frequencies in Mexico
2016-02-21 12:38:00| Telecompaper Headlines
(Telecompaper) Mexico's Federal Telecommunications Institute (IFT) announced that AT&T and Telcel will receive additional national blocks of frequencies for 4G services. The 80 MHz of spectrum assigned in the AWS (Advanced Wireless Services) band will generate revenues of around MXN 45 billion (plus annual compensation rights) to the Mexican state in the next 15 years. Also, the auction will result in a 29 percent increase in the spectrum available for the development of mobile broadband services in Mexico. Within the next 10 working days, the IFT will issue the corresponding decision, specific blocks of spectrum and the forecasts for the reordering of the frequencies previously assigned. Telcel (America Movil) will receive a total of 20 MHz nationwide in the AWS-1 band and 40 MHz nationwide in the AWS-3 band. The concessions are valid until 1 October 2030, and Telcel will pay a total of MXN 2.10 billion for the rights of use. AT&T will get 20 MHz (2x10) nationwide in the AWS-1 band, paying MXN 1 billion for the 15-year licence. The concessions will be granted upon compliance of certain requirements provided under the auction rules issued by the IFT.
Variable Speed Drives offer output frequencies of 3,000 Hz.
2015-12-03 14:31:08| Industrial Newsroom - All News for Today
Engineered specifically for high-speed applications, Unidrive HS30 incorporates Dual Safe Torque Off and advanced Rotor Flux Control of open loop induction motors, while Unidrive HS70 offers optimized induction, permanent magnet, and servo motor performance, with on-board real-time Ethernet. HS70 also incorporates Advanced Motion Controller and PLC. Different variations of HS70 are available, including models with on-board Ethernet, RS485, and Dual Safe Torque Off.
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speed
output
variable
Manipulating Transistors At Terahertz Frequencies
2015-11-25 04:58:53| rfglobalnet Home Page
An interdisciplinary team at the Ruhr-Universität Bochum has found a way of accessing the interior of transistors. The researchers have manipulated the electron gas contained within by applying resonators to generate rhythmic oscillation in the terahertz range inside. They shared their findings in the magazine “Scientific Reports”.
Tags: frequencies
manipulating
transistors
terahertz
RF Signal Generators have 9 kHz to 3.0 GHz output frequencies.
2015-11-12 14:31:04| Industrial Newsroom - All News for Today
With full remote control capability and digital automatic level control circuit scheme, Rigol DSG800 provides RF signal source with max output of +20 dBm and frequency resolution of 0.01 Hz at any frequency. SSB noise is -115 dBc/Hz, and internal clock exhibits <2 ppm standard or 5 ppb optional stability. As guided by 3.5 in. color LCD with grouped controls, operation is intuitive. Other features include sweep functions, analog modulation functions, and optional pulse train generation.
Tags: output
signal
ghz
frequencies
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