
	Where results make sense

Topic: Milliwatt

In the News (Wed 15 Feb 12)

EXECUTIVE POWER

Iran

ANALYSIS

Pakistan

Family compact

	DIGITAL MILLIWATT digital
		Sends a periodic digital milliwatt signal or idle channel termination from the digital side of headset receive to enable monitoring of the analog headset receice.
		Transmits a periodic digital milliwatt signal or idle channel termination to central office 4 from the digital side of headset 32.
		Transmits a periodic digital milliwatt signal or idle channel termination to both headset 32 and central office 4.
	digilander.libero.it /a_digital/Digital_milliwatt.html (815 words)

	Milliwatt_CD
		The Milliwatt is a tribute to Ade's diligence and perseverance, the results being a publication chock full of information to delight QRPers of all ages and degrees of experience.
		Though over a generation has passed since Ade first brought us the Milliwatt, much of the information contained is still relevant for today's QRP newcomers as well as the more seasoned among us.
		With the Reader you can open and read the Milliwatt on screen, or if you prefer, print the pages out on your laser printer to have a hard copy.
	www.qrpworld.com /milliwatt_cd.htm (347 words)

	ARONTS Information
		In actual use, a milliwatt number would be called, and the SIT response indicates a test call failure.
		Milliwatt numbers selected from NPA-NXX destinations may be used to verify the ability of the CO to place calls to all permitted locations.
		Milliwatt test numbers can be forced over all interexchange carrier networks to verify call delivery.
	www.bcpl.net /~n3ic/aronts/aronts.html (3155 words)

	Definition: digital milliwatt (Site not responding. Last check: 2007-10-18)
		In digital telephony, a test signal consisting of eight 8-bit words corresponding to one cycle of a sinusoidal signal approximately 1 kHz in frequency and one milliwatt, rms, in power.
		A continuous signal of arbitrary length, i.e., an indefinite number of cycles, may be realized by continually reading out and concatenating the stored information into a data stream to be converted into analog form.
		It has the advantage of being tied in frequency and amplitude to the relatively stable digital clock signal and power (voltage) supply, respectively, that are used by the digital channel bank.
	www.its.bldrdoc.gov /projects/devglossary/_digital_milliwatt.html (148 words)

	Miscellaneous Measurements
		For equipments that operate in the audio-frequency (af) range, power levels have to be determined in the performance of routine checks and during corrective maintenance procedures.
		Briefly stated, the amount of power in a given value of dBm is the power which results if 1 milliwatt is amplified or attenuated by that dB value.
		Notice that this is an ac voltmeter in which the upper scale of the meter indicates ac voltage and the lower scale indicates decibels.
	www.tpub.com /neets/book16/67.htm (1442 words)

	Green Home Toxipedia : Letter M
		FDA safety standards allow microwave emissions of up to 1 milliwatt/ sq.
		Russian safety regulations prohibit exposure above 1 milliwatt for more than one minute, and require eye protections at even that level.
		People exposed to microwaves have complained of headaches, loss of sleep, low heart rates, and greater frequency of viral infections.
	www.greenhome.com /info/toxipedia/M (189 words)

	Milliwatt (dialplan application)
		Milliwatt - this application allows you to generate a constant tone.
		Milliwatt() ;there are no arguments for this application
		It is to generate a constant tone with 1000Hz frequency at 0dbm.
	www.asteriskguru.com /tutorials/milliwatt.html (496 words)

	Type NDB-2 & 3 Milliwatt Meters
		National RF’s Type NDB-2 and NDB-3 RF Milliwatt Meters are affordable pieces of test equipment for both the RF laboratory and the home experimenter.
		Both provide a digital reading of RF power in dB reference 1 milliwatt of power into a 50 ohm load (i.e.
		When this function is selected, a maximum of 250 milliwatts (1/4 Watt) can be inputed continuously, and ½ Watt for short periods of time.
	www.nationalrf.com /NDB-2.htm (388 words)

	Cisco - Defining Analog Voice
		Since the power in telephone circuits is small, the milliwatt is used as the basic power measurement unit, just as the foot is used as the basic measurement of length.
		When you establish a relationship between the decibel and the milliwatt, you can eliminate the milliwatt as an operational unit of measure and deal exclusively with the decibel and related units of measure.
		Since a milliwatt is the standard power reference in communications, it is logical that 0 dBm (the absolute power reference when decibel units are used) is equal to 1 mW of power.
	www.cisco.com /warp/public/788/signalling/define_analog_voice.html (2901 words)

	Hi-Z Technology, Inc.
		Milliwatt generators should provide sufficient and reliable power for space missions lasting up to 20 years.
		A milliwatt power supply is being developed based on the 1 watt Light-Weight Radioisotope Heater Unit (RHU), which has already been used to provide heating alone on numerous spacecraft.
		Hi-Z is fabricating milliwatt modules for the DOE that will be used in power supplies for NASA's space exploration missions and the DARPA that will be used to power micro air vehicles (MAVs).
	www.hi-z.com /websit30.htm (4008 words)

	Setting up rxgain and txgain - AstUG
		To do this in a quantitative fashion you need a phone number for a 'milliwatt test line' at your serving central office (here is a list for Telecom Image:Milliwatt 100024.txt).
		Dial the CO Milliwatt test line from inside Asterisk via the target trunk.
		Now, to set the txgain you need to have at least two lines on the asterisk server so you can loop a call through the serving central office and back to your own milliwatt source - to be able to listen to the effect you have on your own outbound audio.
	astug.org.nz /wiki/Setting_up_rxgain_and_txgain (394 words)

	The Board Room: Mini-PAT
		The Mini-PAT is equipped with 12 originating lines, a single milliwatt terminating line and a single monitor line.
		The milliwatt termination line generates the 1004 Hz tone commonly used for testing and required to verify routing and billing on intra-office codes, since most switches normally do not bill for intra-office calls to tone trunks.
		The monitor line allows the user making calls from the remote location to "listen in" on the calls as they are placed.
	www.boardroom.biz /Mini-PAT.htm (231 words)

	Lasers
		Shooting a hologram with a 1 milliwatt laser will require a longer exposure time than shooting the same scene with a 2 milliwatt laser.
		For beginners, either a 1 or 2 milliwatt laser is suitable.
		A 1.25 milliwatt HeNe laser suitable for holography complete with power supply is available from Images Co. for $99.00, see suppliers source.
	www.imagesco.com /articles/holography/HowToShootHolograms03.html (444 words)

	Online Decibel Milliwatts and Voltage Calculator
		In this case it is electrical power relative to a milliwatt.
		The decibel is a logarithmic unit, so 10dBm is ten milliwatts, 20dBm is a hundred milliwatts and 30dBm is a Watt.
		Enter either a value of Decibels (Range = ±100) relative to one milliwatt or the milliwatts.
	www.ringbell.co.uk /info/dbm.htm (321 words)

	cars - DBm
		dBm is an abbreviation for the dB referenced to one milliwatt.
		A 3 dBm increase represents roughly doubling the power, which means that 3 dBm equals 2 milliwatt.
		For a 3 dBm decrease the power is reduced by one half, making -3 dBm equal to 0.5 milliwatt.
	www.carluvers.com /cars/DBm (123 words)

	The Actinide Research Quarterly: winter 94-95 (Site not responding. Last check: 2007-10-18)
		Because the milliwatt RTG operates from a nuclear heat source rather than from chemical action as in regular batteries, the power sources provide a minimum of 25-30 years of service life for tens of milliwatts of electrical power without needing replacement.
		Theoretically, the devices are capable of producing electrical power much longer, but helium, a byproduct of isotope decay, can build up and eventually rupture the casing.
		All RTG testing and plutonium reclamation activities are done by NMT-9 except vibration and mechanical shock testing, which is performed by ESA-MT. The heat sources for milliwatt RTGs are identical except for the amount of plutonium oxide granules contained in the 4.0-watt and 4.5-watt models.
	www.lanl.gov /orgs/nmt/nmtdo/AQarchive/94-95winter/surveillance.html (511 words)

	K3WWP's QRP - Main
		I operate some of the QRP contests with as little as 250 milliwatts.
		I have 36 states worked and verified with 500 milliwatts or less.
		I hope to throw together an RF attenuator and get back to the milliwatt level some day though.
	home.alltel.net /johnshan/qrp_ss.html (1222 words)

	Decibels (Al Varney; Floyd Davidson)
		In the case of an "m", it is reference to a milliwatt.
		A negative number means less than a milliwatt and a positive number means more than a milliwatt.
		C-message is a weighting filter that is designed to match the human ear and the response of the telephone receiver, such that the measured noise gives a relatively good indication of how much it will interfere with a voice conversation.
	yarchive.net /phone/decibels.html (3571 words)

	Watts vs. dBm - elmers Forum at eHam.net
		This is 20 dB’s below 1 milliWatt, and of course a milliWatt is only 1/1000th of a Watt.
		There IS a reference level for dBm: one milliwatt (hence the "m" in dBm).
		I can see where it would be easier (as the one fellow said) to measure useful power in dBm at higher frequencies because it would be a smaller unit of measurement.
	www.eham.net /forums/elmers/93647 (1092 words)

	[No title]
		A milliwatt is, of course, a thousandth of a watt.
		-30 dBm is (1/10th of 1/10th of 1/10th), or 1/1000 overall, or 0.001 of a milliwatt, or 1 microwatt.
		A milliwatt is, of > course, a thousandth of a watt.
	www.tscm.com /tscm-l/022402.txt (12063 words)

	Blinding light as a weapon: Lasers pose threat to airplane pilots (Site not responding. Last check: 2007-10-18)
		Federal regulations require permits for lasers more powerful than 5 milliwatts, but obtaining such lasers is easy.
		An eBay ad for a 5-milliwatt laser said it can be modified to 45 milliwatts with a claimed range of several miles.
		Even at the unregulated 5-milliwatt strength, multiple FAA studies concluded that beams entering a cockpit from the ground serve as a dangerous distraction to pilots.
	www.decaturdaily.com /decaturdaily/news/050107/lasers.shtml (1276 words)

	SM3CER Contest Service/Rules - QRP ARCI Milliwatt Field Day
		There are NO bonus points in the Milliwatt Field Day contest.
		There is NO S/P/C multiplier for this contest as "state" is NOT part of the exchange.
		Total number of QSO points times the power multiplier corresponding to the highest power level under which ANY contact was made.
	www.sk3bg.se /contest/qrparmfd.htm (214 words)

	dBm, Its meaning and how to calculate. (Site not responding. Last check: 2007-10-18)
		For dBm, the known value is 1 Milliwatt.
		Restated: To convert X milliwatts to dBm: 10 log (X).
		The value of X is found by subtracting the exponents in the ratio.
	home.inu.net /davidstua/dbm.htm (596 words)

	[HATS] HATS ATV Transmitter - User Survey (Site not responding. Last check: 2007-10-18)
		If you are interested in 33cm would you be interested in a milliwatt version or a higher powered version, realizing that the higher power version might cost more (supply/demand).?
		Many are using old cellular telephone amplifiers that take milliwatts to drive to many watts.
		If there is sufficient demand for a 2 watt, 33 cm version we can do that but not for half a dozen transmitters.
	www.stevens.com /archives/hats/2001/000494.html (371 words)

	Fiber Unit List
		5.8 GHz transmitter and receiver,100 milliwatt maximum output power.
		5.8 GHz transmitter and receiver, 100 milliwatt maximum output power, straight-through and cro.
		5.8 GHz ISM band transmitter and receiver with 100 milliwatt max.
	www.nationaldatamux.com /adtran/fiberunits.html (2011 words)

	dBm to volt voltage V dB dBu dBV dBm conversion and calculation milliwatt milliwatts - sengpielaudio (Site not responding. Last check: 2007-10-18)
		-10 dbV +4dBu + 6dBu 0 dBm milliwatt milliwatts watt Sengpiel Berlin sengpielaudio
		The index m at dB means 1 milliwatt as reference value for 0 dB.
		A logarithmic ratio with a reference power of 1 milliwatt ≡ 0 dBm.
	www.sengpielaudio.com /calculator-volt.htm (210 words)

	Adventure with Milliwatts
		But not just WAS, I was going to work all states and every contact would be done at milliwatt levels.
		He wrote the milliwatt column there for several years.
		In WASTP the idea is to total the power used to make a contact in every state.
	www.qsl.net /kj5tf/wastory.html (1038 words)

	Wandel and Goltermann EMP-1 Milliwatt Power Meter (75OHM)
		By avoiding the high investment, high depreciation 'bleeding edge' instruments, we can keep our costs down and pass that saving on to you.
		We are able to offer various commercial options such as 'rent-to-buy' - just ask and we will always endeavour to meet your needs.
		All products are delivered fully electrically, mechanically and cosmetically refurbished with a no-quibble parts and labour warranty (UK customers: 12 month warranty, International customers: click here).
	www.testequipmenthq.com /OnlineCatalog/products/waepm1.html (659 words)

	♠ WiFi \| Wireless Amplifier 400 mW
		Our amplifier is a 400 milliwatt weatherproof kit complete with a DC injector, AC adapter and mast mounting kit.
		This will allow you to increase the power of your wireless card or router from a typical 30 milliwatt transmit output to 400 milliwatt.
		Note: These wireless amplifiers are FCC compliant with low gain 802.11 antennas, licensed ham radio operators, military, and export applications.
	www.radiolabs.com /products/wireless/wireless-amplifier.php?PHPSESSID=5627fcedc7a58d86b8a48fcc6e118e22 (283 words)

	K3WWP's Awards - Milliwatt Work
		While there are no major awards for doing things with milliwatt power, it is interesting to see what can be done using less than 1 watt with simple wire antennas.
		I'll list one contact from each country I've contacted.
		Some day I will build an RF attenuator and get back to it.
	home.alltel.net /johnshan/awards_ss_mw.html (95 words)

	[No title]
		SIMPLE Time-Difference-Of-Arrival RDF UNIT - A center scale meter shows which way to transmitter.
		The FOX TIMER - travel alarm used to control 250 milliwatt transmitter.
		THE FOX - two transistor 40 milliwatt fox transmitter
	home.att.net /~jleggio/projects/rdf/rdf.htm (254 words)

Try your search on: Qwika (all wikis)