What is PHz and EHz?
1 petahertz [PHz] = 0.001 exahertz [EHz] From: hertz. exahertz.
What is the highest hertz frequency?
20,000 Hz
The highest frequency that most humans can hear is 20,000 cycles per second or 20,000 Hz. This limit gets lower as humans age. Older people generally don’t have as large of a hearing range as younger people.
What is Tetra Hertz?
Terahertz (unit), a unit of frequency, defined as one trillion (1012) cycles per second or 1012 hertz. Terahertz radiation, electromagnetic waves within the ITU-designated band of frequencies from 0.3 to 3 terahertz.
Can humans hear 16000 Hz?
People under 50 should be able to hear the 12,000hz and people under 40, the 15,000hz. Under 30s should hear the 16,000hz, and the 17,000hz is receivable for those under 24. MORE: Test! ‘In general, younger people will have more of these microscopic ‘hairs’ present, enabling them to hear a wider range.
Can a human hear 25000 Hertz?
Almost certainly not. The threshold of human hearing, even amongst the youngest, keenest ears, is about 20kHz (20,000Hz). 25,000Hz is into the ultrasound that echo-locating insectivorous bats use!
Which is the best radio frequency for long distance?
For Long Distance 24.890 MHz 24.990 MHz Amateur Radio 12m Band 26.965 MHz 26.965 MHz CB Channel 1 a.k.a. 11m Band (Not Amatuer Radio) 26.975 MHz 26.975 MHz CB Channel 2 a.k.a. 11m Band (Not Amatuer Radio) 26.985 MHz 26.985 MHz CB Channel 3 a.k.a. 11m Band (Not Amatuer Radio) 27.005 MHz
What are the frequencies in Region 2 MHz?
Region 2 MHz Region 3 MHz Band MHz Government Allocation Non-Government Allocation Remarks 27.5-28 METEOROLOGICAL AIDS FIXED MOBILE 27.41-27.54 LAND MOBILE Industrial 27.54-28 FIXED MOBILE US298 US298 28-29.7 AMATEUR AMATEUR-SATELLITE 28-29.7 AMATEUR AMATEUR-SATELLITE 29.7-30.005 FIXED MOBILE 29.7-29.8 LAND MOBILE Industrial 29.8-29.89
What are the names of the radio frequencies?
33.00-33.01 MHz Land Transportation 33.01-33.11 MHz Public Safety 33.11-33.41 MHz Industrial 33.41-34 MHz Public Safety 34-35 FIXED MOBILE See Section 4.3.6 of the NTIA Manual for Channeling Plan. 35-36 LAND MOBILE NG124 35.00-35.19 MHz Industrial 35.19-35.69 MHz Domestic Public Industrial Public Safety 35.69-36.00 MHz Industrial 36-37 FIXED
Which is the highest frequency in NG124?
NG124 33.00-33.01 MHz Land Transportation 33.01-33.11 MHz Public Safety 33.11-33.41 MHz Industrial 33.41-34 MHz Public Safety 34-35 FIXED MOBILE