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What radio operates between the frequencies of 3000 kHz and 30 MHz?
Wiki User
∙ 12y ago
GPS
Lots of things use these frequencies. There is an amateur radio bad around 1250. Cell phones are around 1800 (and even higher). Microwave ovens are around 2450. WiFi is slightly higher. Bluetooth is in there, and a lot of point-to-point microwave radio links which are used by the phone company to get signals 20 miles or more without wires. Micro Links are also used by radio and television stations to get the signals from their studios to their transmitters (STL).
There could even be certain radar, radiotelescope, and satellite frequencies in that band but I am not sure of that.
Wiki User
∙ 13y ago
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Radio portion of the electromagnetic spectrum Radio waves are divided up into bands by frequency (and corresponding wavelength) as shown in the radio frequency spectrum table below. {| ! ! ! ! ! | < 3 Hz > 100,000 km Extremely low frequency ELF 1 3-30 Hz 100,000 km - 10,000 km Communication with submarines Super low frequency SLF 2 30-300 Hz 10,000 km - 1000 km Communication with submarines Ultra low frequency ULF 3 300-3000 Hz 1000 km - 100 km Communication within mines Very low frequency VLF 4 3-30 kHz 100 km - 10 km Submarine communication, avalanche beacons, wireless heart rate monitors, geophysics Low frequency LF 5 30-300 kHz 10 km - 1 km Navigation, time signals, AM longwave broadcasting Medium frequency MF 6 300-3000 kHz 1 km - 100 m AM (Medium-wave) broadcasts High frequency HF 7 3-30 MHz 100 m - 10 m Shortwave broadcasts, amateur radio and over-the-horizon aviation communications Very high frequency VHF 8 30-300 MHz 10 m - 1 m FM, television broadcasts and line-of-sight ground-to-aircraft and aircraft-to-aircraft communications Ultra high frequency UHF 9 300-3000 MHz 1 m - 100 mm television broadcasts, microwave ovens, mobile phones, wireless LAN, Bluetooth, GPS and Two-Way Radios such as FRS and GMRS Radios Super high frequency SHF 10 3-30 GHz 100 mm - 10 mm microwave devices, wireless LAN, most modern Radars Extremely high frequency EHF 11 30-300 GHz 10 mm - 1 mm Radio astronomy, high-speed microwave radio relay Above 300 GHz < 1 mm |}
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What radio operates the frequencies of 3000 kHz and 30 MHz?
microwaveI am sorry, but the above answer of "microwave" is dead wrong! 3000 Khz = 3Mhz. 3-30 Mhz is called the HF frequency band. 3-30 Ghz (1000 times higher) is the microwave band.A lot of the worldwide Amateur "Ham" Radio bands are located on 3-30Mhz. All of the "shortwave" radio stations. The US Bureau of Standards operates on EXACT frequencies of 5.000000, 10.000000, and 20.000000 - these are also the EXACT TIME beacons that many clocks synchronize to*. There are radio beacons, jamming signals from third world countries, military radio, RTTY (basically "fax" by radio), weather satellites, CB radio, Radio Control frequencies (for RC controlled cars, planes, boats), diathermy machines (used in doctors offices), and the HAARP project in Alaska which is "supposedly" for Auroral research.*The "atomic clocks" and watches that most consumers can buy are synced to this same WWV source, but operate at 60 Khz (or 60,000 hertz). 10Khz is about the "basement" of the radio frequency bands.
What radio operates between the frenquencies of 3000 khz and 30 mhz?
When I was a radioman in the USCG, we used to use a GSR-924 transmitter with a Harris receiver to monitor 2182khz they would both go up to 30Mhz but they were two different pieces of equipment.
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Most speech is found in the band of 300 to 3000 Hz
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What is the difference between radiowaves and microwaves?
The frequency spectrum in which they operate. Microwaves are generally in the ultra high and super high and extremely high frequency bands, e.g., UHF 300 to 3000 MHz and 3000 to 30000 MHz and 30 to 300 GHz, respectively. Thus, radio waves and microwaves can be used to transmit information, as such, they are synonomous. However, radio waves can be generated throughout the electromagnetic spectrum from near 0 Hz to 300 GHz, but are generally considered to be in the frequencies ranges below the infared bands. Microwave is a term used to express electromagnetic energy at higher frequencies. http://en.wikipedia.org/wiki/Radio_waves http://en.wikipedia.org/wiki/Radio_frequency http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html http://en.wikipedia.org/wiki/Microwaves
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The so-called "2 meters" Amateur radio allocation is the band of 144 - 148 MHz in the US. Frequencies from 30 to 300 MHz are tagged 'VHF'. 'VF' typically means 'voice frequency' and is irrelevant to this discussion. "HF" = 3 to 30 MHz. "UHF" = 300 to 3000 MHz.
Factor pairs between 3000 and 5000?
name factors pairs between 3000 and 5000
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Audio filtering is a process of increasing the wanted frequencies in the sound spectrum and decreasing the unwanted frequencies as well. Adobe Audition is a software program that allows the audio engineer or audio forensic expert to filter unwanted sounds out of a recording while boosting the wanted frequencies. Speech for example is usually found between 800Hz and 3000 kHz. Speech is an example of a wanted sound. Tape hiss is usually found between 8000 kHz and 12,000 kHz and is an example of an unwanted sound.
What is the minimum bandwidth required for an FSK signaling 3000 bauds per second with carrier frequencies separated by 4000 Hz?
7000 Hz
