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[DOC File]CC Commercal Element 3 Queston Pool
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The concept of 3-dB points should be familiar from control and signal processing theory in that it is the standard measure used to characterize bandwidth. The value of 13 dB is a standard detection threshold. Later, we will show that a SNR threshold of 13 dB yields a detection probability of 0.5 on an aircraft type of target. 1 ©2005 M. C ...
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[DOCX File]Singletone Software Home
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47 CFR § 73.317(d): “Any emission appearing on a frequency removed from the carrier by more than 600 kHz must be attenuated at least 43 + 10 Log. 10 (Power, in watts) dB below the level of the unmodulated carrier, or 80 dB, whichever is the lesser attenuation.”. As observed on April 9, 2019, the Agent determined that emissions from KIOI-FM2, centered about 111.525 MHz, was attenuated by ...
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[DOCX File]Sound Intensity - Space Math at NASA
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least 43+10log(power in watts) db or 80 db below the unmodulated carrier whichever is the lessor. The transmitter. output power is 160 watts, thus the limit for section (d) is 65 db. W293AV. K283AN. W248AS. W226AY. Directional Coupler. Transmission System Diagram
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[DOCX File]ARCAT | Free Building Product CAD Details, BIM, Specs and …
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The 16458 was originally designed for the Heath W5M amplifier (Heath part # 51-19) by E.B. Harrison on 5-27-57. It has a 10K ohm load with 50% screen taps. Power rating is 25 watts at 20 cycles per second. FR was tested at +/- 1db from 10 hz to 75 khz. Mike LaFevre Peerless\MagneQuest
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[DOCX File]docs.fcc.gov
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The single transistor delivered 110 watts of output with 9.1 watts of drive at an RF/DC efficiency of 45%. The single transistor has 13.5 dB of gain at low signal levels and its gain drops by 1 dB at about 85 watts of output. At 100 watts of output, the gain has dropped 1.5 dB to 12.0 dB.
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[DOC File]70 Watts on 2304 MHz – Cheap
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20 watts ERP = 13 dB; 30 watts ERP = 14.77 dB; 14.77 dB - 13dB = 1.77 dB. The requested change in ERP from 4 to 8 watts represents an increase of 3 dB. 47 C.F.R. § 95.857(b)(4). 47 C.F.R. § 95.861(b). That rule provides that “[t]he use of any frequency segment (or portion thereof) at a given geographical location may be denied when, in the ...
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[DOC File]RADAR BASICS - UAH
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Amendment of Parts 1, 21, 73, 74 and 101 of the Commission’s Rules to Facilitate the Provision of Fixed and Mobile Broadband Access, Educational and Other Advanced Services in the 2150-2162 and 2500-2690 MHz Bands)))))
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[DOC File]Federal Communications Commission
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Surface Mounted Wall Subwoofer SB210: Frequency response (-10dB): 42 Hz to 200 Hz, continuous program power capacity: 800 Watts, sensitivity: 95 dB SPL, 1W, 1m, in half space (2pi 180 degree conical coverage, maximum rated SPL 122 dB @ 1m in half space, nominal impedance: 8 ohms, LF driver: 2 x 250 mm, 50 mm (2 inches) edge wound ribbon voice ...
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[DOC File]Specifications, from the Manual
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3-67J6 What is the effective radiated power of a repeater with 50 watts transmitter power output, 5 dB feedline loss, 4 dB duplexer and circulator loss, and 7 dB antenna gain? A. 300 watts. B. 315 watts. C. 31.5 watts. D. 69.9 watts. Answer Key: 3-67J1: B 3-67J2: D 3-67J3: A 3-67J4: D 3-67J5: A 3-67J6: C Subelement 3-K – Aircraft: 6 Key ...
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Watts to dBm Calculator - everything RF
dB = 10Log. 10 (P1/P0) where P0 is a reference power level of 1 picoWatt (10-12 watts). An increase of 3 dB equals a power increase by a factor of 2.0, so an increase by 6 dB or 3+3 db equals 2x2 or 4. In terms of actual watts ,P1, a 60dB sound leads to a sound power of 10-6 watts and 120dB yields 1 watt.
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Watts to db