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2. Digital audio radio service - Wikipedia

   en.wikipedia.org/wiki/Digital_audio_radio_service

   XM and Sirius both operate in the 2.3-GHz S band, from 2320 to 2345 MHz. [1] Increasing the spectrum available for more services would be difficult, since unlike C-band and K u band services, which allow over 200 locations for satellites, S-band satellites must be spaced far apart, with current technology. Existing vehicle antennas would not ...

3. Automobile auxiliary power outlet - Wikipedia

   en.wikipedia.org/wiki/Automobile_auxiliary_power...

   For the 12 volt systems, the center contact is the positive terminal and the shell is the negative terminal. Most automobiles connect the negative terminal to the frame of the vehicle (negative ground). 12 volt auto connectors are made to comply with a standard by Underwriters Laboratories for safety. UL2089 was developed to cover the ...

4. Countries using DAB/DMB - Wikipedia

   en.wikipedia.org/wiki/Countries_using_DAB/DMB

   DAB MUX 1 Digital Radio Cibicom is the gatekeeper of this multiplex broadcasting commercial national radio. DAB MUX 2 National public service stations. DR's 7 channels (including the 10 regional variations of DR P4), as well as the privately owned, public service channel Radio4. DAB MUX 3 Regional and local commercial radio.

5. Antenna types - Wikipedia

   en.wikipedia.org/wiki/Antenna_types

   This article provides a summary description of many of the different antenna types used for radio receiving or transmitting systems. This summary article collects groups of antennas based on their electrical operation. The classification and sub-classifications below follow those typically used in most antenna engineering textbooks. [1] [2] [3 ...

6. Digital Audio Broadcasting - Wikipedia

   en.wikipedia.org/wiki/DAB+

   Official DAB+ logo [1] Official DAB logo (1990s–2018) A Pure branded DAB receiver [2]. Digital Audio Broadcasting (DAB) is a digital radio standard for broadcasting digital audio radio services in many countries around the world, defined, supported, marketed and promoted by the WorldDAB organisation.

7. List of automotive light bulb types - Wikipedia

   en.wikipedia.org/wiki/List_of_automotive_light...

   2 12 V: 35 / 30 W P23t For motorcycles HS5A 2 12 V: 45 / 40 W PX23t For motorcycles HS6 2 12 V: 40 / 35 W PX26.4t For motorcycles PX24W 1 12 V: 24 W PGU20-7 PSX24W 1 12 V: 24 W PG20-7 ANSI № 2504 PSX26W 1 12 V: 26 W PG18.5d-3 ANSI № 6851 S1 2 6 V & 12 V: 45 / 40 W BA20d For car headlights S2 2 6 V & 12 V: 35 / 35 W BA20d For motorcycles S3 2

8. Transmitter - Wikipedia

   en.wikipedia.org/wiki/Transmitter

   Commercial FM broadcasting transmitter at radio station WDET-FM, Wayne State University, Detroit, US.It broadcasts at 101.9 MHz with a radiated power of 48 kW.. In electronics and telecommunications, a radio transmitter or just transmitter (often abbreviated as XMTR or TX in technical documents) is an electronic device which produces radio waves with an antenna with the purpose of signal ...

9. Antenna (radio) - Wikipedia

   en.wikipedia.org/wiki/Antenna_(radio)

   For instance, if a radio wave passing a given location has a flux of 1 pW / m 2 (10 −12 Watts per square meter) and an antenna has an effective area of 12 m 2, then the antenna would deliver 12 pW of RF power to the receiver (30 microvolts RMS at 75 ohms). Since the receiving antenna is not equally sensitive to signals received from all ...