High Frequency
radio communication services from 1.8 to 29.7 MHz, used for long-range communications, the only band used for worldwide communcations other then mircowave and UHF satellite services
radio communication services from 1.8 to 29.7 MHz, used for long-range communications, the only band used for worldwide communcations other then mircowave and UHF satellite services
"Johnson, get Washingtion on the HF"
by IrishRepublicanArmy October 12, 2003
by IrishRepublicanArmy October 13, 2003
Those rockin' dudes you see in dem pimped out crown vics wifh dem bigass VHF antennas in the Commonwealth of Virginia
Frequencies Used By the Virginia State Police (not listing repeater input frequencies).:
039.5400 Statewide Intersystem
042.8600 Base Stations Point to Point
154.6650 Mobile to Mobile
154.6800 Special Protection unit
154.6950 Mobile to Mobile
158.9850 Base to Mobile
159.0000 Base to Mobile
159.1350 Base to Mobile
159.1650 Base to Mobile
453.3500 Mobile Extenders
458.3500 Mobile Extenders
Frequencies Used By the Virginia State Police (not listing repeater input frequencies).:
039.5400 Statewide Intersystem
042.8600 Base Stations Point to Point
154.6650 Mobile to Mobile
154.6800 Special Protection unit
154.6950 Mobile to Mobile
158.9850 Base to Mobile
159.0000 Base to Mobile
159.1350 Base to Mobile
159.1650 Base to Mobile
453.3500 Mobile Extenders
458.3500 Mobile Extenders
by IrishRepublicanArmy January 07, 2004
That portion of the ionosphere existing between approximately 160 and 400 km above the surface of the Earth, consisting of layers of increased free-electron density caused by the ionizing effect of solar radiation. Note 1: The F region reflects normal-incident frequencies at or below the critical frequency (approximately 10 MHz) and partially absorbs waves of higher frequency. Note 2: The F1 layer exists from about 160 to 250 km above the surface of the Earth and only during daylight hours. Though fairly regular in its characteristics, it is not observable everywhere or on all days. The principal reflecting layer during the summer for paths of 2,000 to 3,500 km is the F1 layer. The F1 layer has approximately 5 ´ 105 e/cm3 (free electrons per cubic centimeter) at noontime and minimum sunspot activity, and increases to roughly 2 ´ 106 e/cm3 during maximum sunspot activity. The density falls off to below 104 e/cm3 at night. Note 3: The F1 layer merges into the F2 layer at night. Note 4: The F2 layer exists from about 250 to 400 km above the surface of the Earth. The F2 layer is the principal reflecting layer for HF communications during both day and night. The horizon-limited distance for one-hop F2 propagation is usually around 4,000 km. The F2 layer has about 106 e/cm3. However, variations are usually large, irregular, and particularly pronounced during magnetic storms.
by IRISHrepublicanARMY January 03, 2004
1) The process of comparing an instrument's output signal with reality. Instruments that measure solar energy tend to "drift", that is, their output signals do not mean the same thing from one time period to another. Because of this, they are periodically (annually or semi-annually) re-calibrated against more reliable instruments.
2) Adjusting a measuring instrument to make it accurate. The set of operations which establish, under specified conditions, the relationship between values indicated by a measuring instrument or measuring system and the corresponding values of a quantity realized by a reference standard.
3) The act of adjusting the color of one device relative to another, such as a monitor to a printer, or a scanner to a film recorder. Or, it may be the process of adjusting the color of one device to some established standard.
2) Adjusting a measuring instrument to make it accurate. The set of operations which establish, under specified conditions, the relationship between values indicated by a measuring instrument or measuring system and the corresponding values of a quantity realized by a reference standard.
3) The act of adjusting the color of one device relative to another, such as a monitor to a printer, or a scanner to a film recorder. Or, it may be the process of adjusting the color of one device to some established standard.
by IrishRepublicanArmy December 26, 2003
Halfway between the white market (completely legal) and black market (completely illegal). The gray market sells products which are legal to own, but can be used illegaly or are illegal to use completely.
In Virginia, police radar detectors are gray market items because it is legal to own one, but illegal to actully use it.
by IrishRepublicanArmy June 05, 2004
crew slang:
park in northern virginia, run by the Northern Virginia Regional Park Authority. Its right on the occoquan sewage dump (a.k.a. occoquan reservoir)
place were all the good crew teams practice (or in the case of TJ crew, sit around and play on thier TI-83s). Also the site of the NCASRA crew races. Good place with lots of good memories.... also where fairfax crew owns all.
park in northern virginia, run by the Northern Virginia Regional Park Authority. Its right on the occoquan sewage dump (a.k.a. occoquan reservoir)
place were all the good crew teams practice (or in the case of TJ crew, sit around and play on thier TI-83s). Also the site of the NCASRA crew races. Good place with lots of good memories.... also where fairfax crew owns all.
by IrishRepublicanArmy October 21, 2003