APAKAH MAKSUD DIRECTION FINDER dalam CORSICA?
Pencari arah radio
Pencari arah radio adalah peranti untuk mencari arah ke sumber radio. Idea asas ialah menggunakan dua atau lebih ukuran isyarat yang sama, dan kemudian gunakan sedikit perbezaan antara pengukuran untuk menentukan arah sumbernya. Beberapa generasi sistem RDF yang berbeza telah digunakan dari masa ke masa, berikutan perkembangan elektronik baru. Sistem awal menggunakan antena yang diputar secara mekanikal yang membandingkan kekuatan isyarat dalam arah yang berbeza, dan beberapa versi elektronik konsep yang sama diikuti. Sistem moden menggunakan perbandingan fasa atau teknik doppler yang biasanya lebih mudah untuk diautomatikasikan. Sistem RDF boleh digunakan dengan mana-mana sumber radio, walaupun saiz antena penerima adalah fungsi panjang gelombang isyarat - panjang gelombang yang sangat panjang memerlukan antena yang sangat besar, dan biasanya digunakan hanya pada sistem berasaskan tanah. Panjang gelombang ini adalah sangat berguna untuk navigasi marin kerana mereka boleh menempuh jarak yang sangat jauh dan "di atas ufuk", yang sangat berharga untuk kapal apabila garis-tapak mungkin hanya beberapa puluh kilometer.
Definisi direction finder dalam kamus Corsica
Takrif pencari arah dalam kamus adalah sistem udara yang sangat berarah yang boleh digunakan untuk menentukan arah isyarat radio masuk, yang digunakan esp sebagai bantuan navigasi Singkatan: D / F, DF.
CORSICA BUKU YANG BERKAIT DENGAN «DIRECTION FINDER»
Ketahui penggunaan
direction finder dalam pilihan bibliografi berikut. Buku yang berkait dengan
direction finder dan ekstrak ringkas dari yang sama untuk menyediakan konteks penggunaannya dalam kesusasteraan Corsica.
1
Organizational Maintenance Repair Parts and Special Tools ...
11-5826-225-20P ) HEADQUARTERS DEPARTMENT OF THE ARMY
Washington, DC, 15 August 1977 ORGANIZATIONAL MAINTENANCE REPAIR
PARTS AND SPECIAL TOOLS LISTS FOR DIRECTION FINDER SET AN/ARN-83
(NSN ...
2
Amelia Earhart: The Mystery Solved
After explaining to Manning the function of the Bendix receiver's controls,
Remmlein turned on the power to the radio direction-finder; its on-off switch was
located on the loop coupler control box. Remmlein took great care to explain to
Manning ...
Elgen M. Long, Marie K. Long,
2000
3
Radio Monitoring: Problems, Methods and Equipment
Radio direction finder accuracy is defined by the angular error of bearing. Usually
, radio direction finder accuracy can be characterized by the root-mean-square (
RMS) error of bearing, determined as: δ = √ √ √ √ 1 N where θi is the true ...
Anatoly Rembovsky, Alexander Ashikhmin, Vladimir Kozmin,
2009
4
French Dictionary of Information Technology: French/English, ...
... m radio direction finder; ~ à antenne fixe fixed direction finder; fixed- aerial
finder; ~ à antennes espacées spaced-aerial direction finder; ~ à basculement du
diagramme switched-beam direction finder; ~ à cadre rotating-loop direction
finder; ...
5
Navigation Control Manual
Siting of direction finder installation 33(1) The direction finder shall be so sited
that efficient determination of radio bearings by means of the direction finder will
not be affected by extraneous noises. (2)(a) The direction finder antenna system
...
A G Bole, C E Nicholls, W O Dineley,
2013
6
Azimuth and Elefvation
Direction Finder Techniques
This contract was initiated under the United States Army Project 5A6 79191 D902
~05~ll "Azimuth and Elevation Direction Finder Techniques". The work is
administered under the direction of the Electronics Warfare Division, Advanced ...
J.E. Ferris and W.E. Zimmerman,
1968
7
Bureau of Standards journal of research
11, December 1933 l RADIO DIRECTION FINDER FOR USE ON AIRCRAFT By
Wilbur S. Hinman, Jr. abstract A new type of radio direction finder is described
which does away with phasing liiliculties by using a single loop antenna having a
...
United States. National Bureau of Standards,
1934
8
Operator's and organizational maintenance manual: radio ...
HOW TO USE THIS MANUAL This manual tells about installing, operating and
maintaining the AN/PRD-ll Radio Receiver Direction Finder Set at the operator
and organizational maintenance level. You will find descriptions and
configurations ...
United States. Dept. of the Army,
1985
9
Analysis of the Spiral Antenna
Direction Finder
A study was made of a method previously suggested for constructing a passive direction finder capable of determining the azimuth and elevation of an electromagnetic wavefront.
Peter B. Johnson, HARRY DIAMOND LABS WASHINGTON D C.,
1964
10
National Institute of Standards and Technology Special ...
The Bureau of Standards began work on radio navigation for the military during
World War I. Since military aircraft did not fly on fixed airways, they required
direction-determination service on independent courses. The radio direction
finder, ...
BARANGAN BERITA YANG TERMASUK TERMA «DIRECTION FINDER»
Ketahui apa yang diterbitkan oleh akhbar nasional dan antarabangsa dan cara istilah
direction finder digunakan dalam konteks perkara berita berikut.
Billfish fishing in South Carolina has changed immensely over last …
“For years, all we had was a radio direction finder (RDF) and a compass. We relied on that compass. The Morris Island and Sullivan's Island ... «Charleston Post Courier, Jul 15»
Billfish boom: The evolution of offshore fishing in South Carolina
“For years, all we had was a radio direction finder (RDF) and a compass. We relied on that compass. The Morris Island and Sullivan's Island ... «Charleston Post Courier, Jul 15»
'Cat's eyes' visible in July
Then it is time for a quick direction finder primer. If you know where the sun rises from your home base, then stand with your right shoulder ... «Valley morning Star, Jun 15»
Column: The First, Brief Flight of Dartmouth Airways
“Clayt, where is your direction finder or whatever it's called?” “We just follow the Connecticut River,” he said. “No problem.” It was very exciting. «Valley News, Jun 15»
Teenagers stretch their wings during Civil Air Patrol training
Logan Burkmier, 16, of Newport, Mich., holds a direction finder while talking to Seth Jenkins, 12, of Monroe during a Civil Air Patrol camp at ... «Toledo Blade, Jun 15»
Rockwell Collins to provide radios for U.S. and Australian P-8A …
Rockwell Collins is the sole designer, developer, and manufacturer of the DF 430 aircraft direction finder, the RTP 4230 radio tuner panel, and ... «Intelligent Aerospace, Jun 15»
Paris Air Show 2015: Indonesia buys two AS365s for SAR missions
... completed, and customised by PTDI with mission equipment including hoists, flotation systems, direction finder, an electronic optical system, ... «IHS Jane's 360, Jun 15»
Boating safety a priority for U.S. Coast Guard
"We have a radio direction finder, you don't even have to be transmitting verbally. As long as you're keyed up on a certain channel." Boats also ... «WKBW-TV, Jun 15»
Flight navigation system market by flight instruments forecast …
The avionics systems considered in this report are radar, hyperbolic navigation systems, GNSS, ILS, INS, VOR/DME, Automatic Direction Finder ... «WhaTech, Jun 15»
Veteran mariner brings sail down on 50 years non-stop racing
Navigation was done by dead reckoning with a radio direction finder and a chart. "I don't know how close we were to positioning, but we were able to navigate," ... «KBZK Bozeman News, Jun 15»