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unusual facts about GHz



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2.5-millimeter band

The 2.5 millimeter or 122 GHz band is a portion of the EHF (microwave) radio spectrum internationally allocated to amateur radio use on a secondary basis.

2degrees

It was not until Labour won the 1999 election that Māori were allocated one of the four 2 GHz 3G spectrum licences at a discounted price plus $5 million to develop it.

5 centimeter band

The 5 centimeter or 5 GHz band is a portion of the SHF (microwave) radio spectrum internationally allocated to amateur radio and amateur satellite use on a secondary basis.

6-millimeter band

The 6 millimeter or 47 GHz band is a portion of the EHF (microwave) radio spectrum internationally allocated to amateur radio and amateur satellite use on a primary basis.

Air Ministry Experimental Station

AMES Type 86, 10 GHz mobile CW target illuminator radar for Bristol Bloodhound 2 - a.k.a. Blue Anchor, Firelight - Ferranti

Allen Telescope Array

The telescope design incorporates many new features, including hydroformed antenna surfaces, a log-periodic feed covering the entire range of frequencies from 500 MHz to 11.2 GHz, and low-noise, wide-band amplifiers with a flat response over the entire band making it possible to amplify the sky signal directly.

Danger from the Deep

The game is Multi-platform, meaning that any user can play it on a machine running FreeBSD, a recent version of Mac OS X, a GNU/Linux distribution, or a supported version of Microsoft Windows, along with 256 MB of RAM and a processor with 1 GHz of speed.

DarkSpace

2.0 GHz Intel Pentium 4/AMD Sempron Processor, Windows XP/Vista/7, Dedicated graphics card (Nvidia GeForce 9500GT / AMD/ATI Radeon HD 4000 Series or better), 1 GB of RAM (2 GB for Vista/7), 200 MB free hard drive space, Broadband internet connection, Direct Input compatible mouse, DirectX 9.0c or higher.

Dell Inspiron

The Dell Inspiron 9300 was a laptop that had either a 1.6, 1.73, 1.86, 2.0, 2.13 or 2.26 GHz Intel Pentium M processor and a 17" wide-screen (available in WXGA+ with a 1440 by 900 resolution and WUXGA with a 1920 by 1200 resolution). At the time, it also featured DDR2 memory, a new feature for laptops. Compared with the other Inspiron laptops, it is considered to be the "Entertainment Powerhouse".

Discrete logarithm records

On 18 Jun 2005, Antoine Joux and Reynald Lercier announced the computation of a discrete logarithm modulo a 130-digit (431-bit) strong prime in three weeks, using a 1.15 GHz 16-processor HP AlphaServer GS1280 computer and a number field sieve algorithm.

Drozd

Drozd uses 24.5 GHz Doppler radar to detect incoming rounds travelling between 70 and 700 m/s (to avoid engaging small arms or other faster projectiles).

E band

The Radio Regulations of the International Telecommunication Union allow amateur radio and amateur satellite operations in the frequency range 76.000 GHz to 81.000 GHz, which is known as the 4-millimeter band.

EXPORT

The second instrument, Sky Polarization Observatory, was an Italian astrophysical instrument to measure celestial polarisation range of 20–90 GHz.

Extremely high frequency

WirelessHD is another recent technology that operates near the 60 GHz range.

The upcoming Wi-Fi standard IEEE 802.11ad will run on the 60 GHz (V band) spectrum with data transfer rates of up to 7 Gb/s.

Flicker noise

MOSFETs have a higher fc (can be in the GHz range) than JFETs or bipolar transistors which is usually below 2 kHz for the latter.

GDDR5

On February 20, 2013, it was announced that the PlayStation 4 will utilize 16x4 Gbit (i.e. 16x512 MiB) GDDR5 memory chips for 8 GiB of GDDR5 @ 176 GB/s (CK 1.375 GHz and WCK 2.75 GHz) as combined system and graphics RAM for use with its AMD-powered APU.

Grand Prix Legends

An out-of-the-box copy of GPL lacks several features that one might expect from a modern driving simulation, and so most people add as a matter of course several patches: the official version 1.2 patch that adds force feedback; a second patch to add Direct3D and/or OpenGL support; and a third patch that gets around a problem that prevents the original game from working on computers with CPUs faster than 1.4 GHz.

HSTR LAN

HSTR LAN utilizes an ultra-short frequency of 1.923 gigahertz (GHz)and can upload data with speeds up to 195 gigabits (Gb) in blocks of 19 with a sample rate of 19.

Intel 440BX

The 440BX originally supported Slot 1 and later Socket 370 Intel P6-based processors in single and SMP configurations at speeds of up to 1 GHz (and potentially up to 1.4 GHz with certain unsupported modifications, up to 1.7GHz can be achieved using Front Side Bus speeds higher than 133 and appropriate cooling).

M band

The modern M band intersects with the V (50–75 GHz) and W band (75–110 GHz) of the older IEEE classification system.

Medison

The announced computer had a 14-inch (35.5 cm) WXGA screen, an Intel Celeron processor at 1.5 GHz, 256MB of DDR333/400 RAM, a 40GB hard drive, VIA PN800 integrated graphics, a CD/DVD Combo drive and 802.11g wireless networking.

Mobile phone radiation and health

Australian research conducted in 2009 by subjecting in vitro samples of human spermatozoa to radio-frequency radiation at 1.8 GHz and specific absorption rates (SAR) of 0.4 to 27.5 W/kg showed a correlation between increasing SAR and decreased motility and vitality in sperm, increased oxidative stress and 8-Oxo-2'-deoxyguanosine markers, stimulating DNA base adduct formation and increased DNA fragmentation.

N connector

The 50 ohm type N connector is favored by enthusiasts who create their own Wireless LAN antenna systems, which run at 2.4 GHz or 5 GHz.

Panorama Antennas

The company manufactures antennas to suit all frequencies from 150 MHz to 5 GHz, covering a wide range of applications including 3G, DAB, GPRS, GPS, in-building, ISM Band, M2M, GSM, P25, PMR, TETRA UHF, TETRA 800 and LAN.

Pentium D

Intel first launched Smithfield on April 16, 2005 in the form of the 3.2 GHz Hyper-threading enabled Pentium Extreme Edition 840.

SHF

Super high frequency, radio frequencies (RF) in the range of 3 GHz and 30 GHz

Tail gunner

In the autumn of 1944, the British began deploying Lancasters fitted with the Automatic Gun-Laying Turret, this was a fitted with a 9.1 cm (3 GHz) radar.

Traktor Kontrol X1

System requirements for Mac: Mac OS X 10.5, Mac OS X 10.6, G4 1,4 GHz or Intel Core Duo 1.66 GHz, 1 GB RAM

Transmeta Efficeon

The first generation (TM8600) was manufactured using a TSMC 0.13 micrometre process and produced at speeds up to 1.2 GHz.

VIA C7

In early April 2008 the schoolroom-use oriented, ultra-portable HP 2133 Mini-Note PC family debuted with an entirely VIA-based, 1.0, 1.2 and 1.6 GHz C7-M processor portfolio, where the lowest speed model is optimized for running an SSD-based 4GB Linux distribution with a sub $500 price tag, while the middle tier carries Windows XP and the top model comes with Windows Vista Business, factory default.


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