Audio Frequencies
15z-20kHz
Radio Frequencies(3kHz-300GHz) Spectrum
ELF-Extremely Low frequencies 30 Hz-3kHz
VLF-Very Low frequencies....3kHz -30kHz
LF-Low Frequencies .....30kHz -300kHz
MF-Medium Frequencies ...300kHz-3MHz
HF-High Frequencies .....3MHz-30MHz
VHF-Very High Frequencies ...30MHz-300MHz
UHF-Ultra High Frequencies ...300MHz-3GHz
SHF-Super High Frequencies ...3GHz-30GHz
EHF-Extreme High Frequencies ...30Gz-300GHz
FM..88MHz-108Mhz
TV channels(2-6) ..54MHz-88Mhz
TV channels (7-13)..174MHz-216MHz
TV channels (14-83) ..470MHz-890MHz
Countertop Microwave Oven ..2.64GHz
AM-Amplitude Modulated -540kHz-1600kHz
LW-Long wave -158.5kHz-283.5kHz
SW-Shortwave ...1.5Mz-30MHz
MW-Medium wave ..520kHz-1.6MHz
Cellular Phone
Cordless phone..46MHz-49MHz
Pagers(VHF) ..30-50MHz
Pagers (UHF) ..405-512MHz
GSM 1900MHz,1800MHz,850MHz,900MHz
3G ...2100MHz
4G ...2500–2690 MHz
CDMA ..915-925MHz(Japan),1750-1780(S Korea)
TDMA ..Rx: 869-894 MHz; Tx: 824-849 MHz
DECT(Data Enchanced Cordless Tx) ..1.9 GHz (1880–1900 MHz)
Satellite transmission C band..3.95-5.85 GHz (Downlink)
Satellite transmission Ku band..10.7-13.25GHz
Satellite transmission Ka band ..18.3-22.2 GHz
Blutooth frequency..2.402GHz-2.48GHz
Infrared frequency ..1-430THz
Wifi frequencies
802.11g-2.4GHz 54Mbps
reference:Bolyestad's college text book
ancient capital'Mandalay'
aung myayy
Monday, April 5, 2010
Saturday, March 13, 2010
Healthy You
Hi friends,
Again I found some important datas or parameters to monitor your healthy life style.Some of you might know about it already.This is the technique professional physicians determining about your health condition and potential health hazards.So you better be take care of yourself buddies..
Pls be aware of your BMI and blood pressure
High blood pressure is said to be a silent killer in United State and all over the world.High blood pressure (HBP) is a serious condition that can lead to coronary heart disease, heart failure, stroke, kidney failure, and other health problems.
ategories for Blood Pressure Levels in Adults (in mmHg, or millimeters of mercury)
Category Systolic
(top number) Diastolic
(bottom number)
Normal Less than 120 And Less than 80
Prehypertension 120–139 Or 80–89
High blood pressure
Stage 1 140–159 Or 90–99
Stage 2 160 or higher Or 100 or higher
Antihypertensive drugs are used if a person’s blood pressure is above 140 (systolic) or 90 (diastolic). There are several different “classes” of blood pressure medication.1 Currently, they include:
Diuretics. Help the body to flush away water and salt2
Calcium Channel Blockers. Relax and widen blood vessels3
ACE Inhibitors. Block hormones that constrict blood vessels4
Angiotensin II Receptor Blockers. Block blood-vessel–constricting hormones5
Beta Blockers. A beta blocker is a medication that slows the heart rate and reduces the force with which the heart muscle contracts, thereby lowering blood pressure. Beta blockers do this by blocking beta-adrenergic receptors, which prevents adrenaline (epinephrine) from stimulating these receptors.6
This is the BMI(BODY MASS INDICATOR) for your quick reference
BMI Categories:
Underweight = <18.5
Normal weight = 18.5-24.9
Overweight = 25-29.9
Obesity = BMI of 30 or greater
this is the BMI calculator based on your weight and your height
http://www.nhlbisupport.com/bmi/bminojs.htm
BMI table is available here in tis link and it is the original information provider.
http://www.nhlbi.nih.gov/guidelines/obesity/bmi_tbl.htm
Again I found some important datas or parameters to monitor your healthy life style.Some of you might know about it already.This is the technique professional physicians determining about your health condition and potential health hazards.So you better be take care of yourself buddies..
Pls be aware of your BMI and blood pressure
High blood pressure is said to be a silent killer in United State and all over the world.High blood pressure (HBP) is a serious condition that can lead to coronary heart disease, heart failure, stroke, kidney failure, and other health problems.
ategories for Blood Pressure Levels in Adults (in mmHg, or millimeters of mercury)
Category Systolic
(top number) Diastolic
(bottom number)
Normal Less than 120 And Less than 80
Prehypertension 120–139 Or 80–89
High blood pressure
Stage 1 140–159 Or 90–99
Stage 2 160 or higher Or 100 or higher
Antihypertensive drugs are used if a person’s blood pressure is above 140 (systolic) or 90 (diastolic). There are several different “classes” of blood pressure medication.1 Currently, they include:
Diuretics. Help the body to flush away water and salt2
Calcium Channel Blockers. Relax and widen blood vessels3
ACE Inhibitors. Block hormones that constrict blood vessels4
Angiotensin II Receptor Blockers. Block blood-vessel–constricting hormones5
Beta Blockers. A beta blocker is a medication that slows the heart rate and reduces the force with which the heart muscle contracts, thereby lowering blood pressure. Beta blockers do this by blocking beta-adrenergic receptors, which prevents adrenaline (epinephrine) from stimulating these receptors.6
This is the BMI(BODY MASS INDICATOR) for your quick reference
BMI Categories:
Underweight = <18.5
Normal weight = 18.5-24.9
Overweight = 25-29.9
Obesity = BMI of 30 or greater
this is the BMI calculator based on your weight and your height
http://www.nhlbisupport.com/bmi/bminojs.htm
BMI table is available here in tis link and it is the original information provider.
http://www.nhlbi.nih.gov/guidelines/obesity/bmi_tbl.htm
Thursday, February 18, 2010
7 wonders of the world
1.CHICHENITZA MEXICO
2.CHRIST REDEEMER BRASIL
3.COLOSSEUM ITALY
4.TAJ MAHAL INDIA
5.GREAT WALL OF CHINA CHINA
6.PETRA JORDAN
7.MACHU PICCHU PERU
2.CHRIST REDEEMER BRASIL
3.COLOSSEUM ITALY
4.TAJ MAHAL INDIA
5.GREAT WALL OF CHINA CHINA
6.PETRA JORDAN
7.MACHU PICCHU PERU
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