[Loran
Antenna]
[°ü·Ã ¾ÈÅ׳ª]
DGPS ¾ÈÅ׳ª: 285-325kHz
LBA
Technology SAMWAS-100: µ¿ÀÛÁÖÆļö 275-530kHz Áß ´ÜÀÏÁÖÆļö. Á¢Áö¸é Á÷°æ 60m, ³ôÀÌ 0.0375ÆÄÀå(33m).
1/4ÆÄÀå ¸ð³ëÆú ½ÅÈ£µµ´Þ °Å¸®ÀÇ 70% µµ´Þ. Low-Q ¼³°è. µ¶ÀÚÀûÀÎ top loading ±â¼ú ¹× ground reference system(¾ÈÅ׳ª ÀÓÇÇ´ø½º°¡ Áö¸éƯ¼º¿¡ µû¶ó º¯ÇÏ´Â °Í ¹æÁö). Àú¼Õ½Ç ground termination path Á¦°ø. ±¸Á¶: Àý¿¬µÈ ¼öÁ÷ ¾ÈÅ׳ª ž, µ¶ÀÚÀûÀÎ »óºÎÀåÇÏ. trapezoidal
symmetrical unipole Q-reduction system. ÃÖ´ë¼Û½Å Ãâ·Â 1000kW.
Autotensioning terminationsÀÇ »ç¿ëÀ¸·Î ¾ÈÅ׳ª ½Ã½ºÅÛ ¾ÈÁ¤µµ È®º¸. ¾ÈÅ׳ªÀÇ retuning °ÅÀÇ ºÒÇÊ¿ä.
ȯÇü¸µ°ø±Þº¯¾Ð±â: Ç×°øÀ§ÇèÇ¥Áöµî
Hot-dip galvainized Àç·á·Î ¾ÈÅ׳ªÅ¾ Á¦ÀÛ.
¾ÈÅ׳ªÁ¤ÇÕ(tuning) ½Ã½ºÅÛ: ATU-1(300kHz 1kW CW),
ATU-2.5 (500kHz, 2.5kW)
Á¢Áö½Ã½ºÅÛ: Åë»óÀûÀ¸·Î 1/4ÆÄÀå ¸Å¼³ ±¸¸®µµ¼±À» »ç¿ëÇÏ¿© ¾ÈÅ׳ª Á¢Áö ±¸¼ºÀ» Ãßõ. Áö¸é À§ ¼³Ä¡ °¡´É. ¸Å¼³µÈ ´õ ªÀº Á¢Áö¼± »ç¿ë °¡´É.
Cantilevered
six element radial capacitance reference: ±Ø¼ÒÇü ¸ð³ëÆú ¾ÈÅ׳ªÀÇ ¼º´ÉÀÌ ±âÈijª Áö¸éÁ¶°Ç¿¡ µû¶ó º¯ÈµÇ´Â °ÍÀ» ¹æÁö. ¾ÈÅ׳ªÅ¾ ±âÀúºÎ¿¡¼ º¯À§Àü·ù ÃëÇÕ¼º´É °³¼±.
Àý¿¬: high-flashover, corona
protected guy Àý¿¬Ã¼ »ç¿ëÇÏ¿© ³«·Ú³ª ±âŸ À¯µµµÈ °íÀü¾Ð¿¡ ÀÇÇÑ ½Ã½ºÅÛ Â÷´Ü ¹æÁö.
[¾ÈÅ׳ª Á¤ÇÕ]
ATU(antenna
tuning unit): ¼Û½Å±â¿Í ¾ÈÅ׳ª Á¤ÇÕ. ACU(antenna
coupling unit)À̶ó°íµµ ÇÔ.
LTU(line
tuning unit): ¼Û½Å±â¿Í ±ÞÀü¼± Á¤ÇÕ
Çü½Ä:
-
Series-fed
- TunipoleTM antenna system: 500kW
±Þ
Multiplexer:
diplexer, triplexer, quadraplexer.
¿©·¯ ¼Û½Å±â¸¦ ´ÜÀÏ ¾ÈÅ׳ª¿¡ ¿¬°á. ATU¿Í RF ÇÊÅ͸¦ Á¶ÇÕÇÑ °Í.
À§»óÁ¤ÇÕÀ¯´Ö: µðÁöÅÐ Æ©´×.
¾ÈÅ׳ª Á¤ÇÕȸ·Î ¼³°è½Ã °í·Á»çÇ×: ¼Û½ÅÃâ·Â, ÁÖÆļö, ´ë¿ªÆø, ¾ÈÅ׳ª ÀÓÇÇ´ø½º, ¾ÈÀü¸¶Áø, ¾ÈÁ¤µµ, µ¿ÀÛȯ°æ, Á¤ÇÕȸ·Î ÇÔü, »ó½Ã±Ù¹«ÀÚ RF ¾ÈÀü¼º,
Á¤ÇÕȸ·Î ±¸Á¶: °íÃâ·Â Á¤ÇÕȸ·Î. °æÁ¦¼º. °íÀü¾Ð ºÎÇ°½ÇÇö °¡´É¼º. ³ôÀº Q°ªÀÇ ºÎÇ°À» »ç¿ëÇÑ º¸¼öÀûÀÎ ¼³°è.
*Pi ȸ·Î:
*T ȸ·Î: 25kW ±Þ ÀÌÇÏ. ´Ù¸ñÀû¼º, °æÁ¦¼º.
*L ȸ·Î:
°íÃâ·Â Á¤ÇÕȸ·Î: º¹ÀâÇÑ ÇÊÅÍ, ½ºÀ§Ä¡ »ç¿ë.
¾ÈÅ׳ª Á¤ÇÕȸ·Î´Â RF°¡ Â÷ÆóµÈ º°µµÀÇ »óÀÚ¿¡ ¼³Ä¡µÊ.
¾ÈÅ׳ª Á¤ÇÕȸ·Î¿¡ »ç¿ëµÇ´Â ºÎÇ°: mica Ä¿ÆнÃÅÍ, Áø°øÄ¿ÆнÃÅÍ, °íÃâ·Â ºÎÇ°, ÀδöÅÍ, ÄÚÀÏ, RF Àü·ù°è, ¾ÈÅ׳ªÅ¾ Àý¿¬Ã¼, °æ±¤µî Àü¿ø¿ë 60Hz º¯¾Ð±â ¹× ÃÊ¿ìÅ©.
Áø°øÄ¿ÆнÃÅÍ: 3-6600pF,
100kV @ 1000A, °íÁ¤/°¡º¯. ¾Ç¼¼»ç¸® = cylometer,
Àý¿¬Ã¼, Äڷγª¸µ, mounting hardware. ¿ëµµ = °íÃâ·Â RF ¹ß»ý¿ø ¹× »ê¾÷¿ë °íÁÖÆÄ Ã³¸®ÀåÄ¡ÀÇ ÀÓÇÇ´ø½º Á¤ÇÕȸ·Î. LF-VHF ´ë¿ª¿¡¼ »ç¿ë. °ø³Ã½Ä/¼ö³Ã½Ä. ¾ÈÁ¤µµ ³ôÀ½. ³»ºÎ¼Õ½Ç ¸Å¿ì ÀÛÀ½. Á¦Á¶»ç = Comet, Jennings, Meiden, Sangamo, Cornell Dubilier, Greenstone
Mica Ä¿ÆнÃÅÍ: ÀúÃâ·Â/ÁßÃâ·Â.
ÀδöÅÍ: ³ôÀº Q°ª, ¾ÈÁ¤µµ, ÀûÀº ¼Õ½Ç. Àºµµ±ÝµÈ ±¸¸®Àç·á »ç¿ë(Ç¥¸é¿¡ ³ì¹æÁö ó¸®). Ȳµ¿ fittings »ç¿ë. ±Ç¼±Àº G-10 ¿¡Æø½Ã laminate·Î Àý¿¬µÊ. ¾ÆÅ©³»¼º, °µµ, Àú¼öºÐÈí¼ö, 5-150uH, 7-150A ratings.
Loran-C ¼Û½ÅÃâ·Â: 0.5-4MW
ÆíÆÄ: ¼öÁ÷. ÁöÇ¥¸éÆĸ¦ ÀÌ¿ëÇϱâ À§ÇØ.
¾ÈÅ׳ª ³ôÀÌ: 400m
»óºÎÀåÇÏ: TLE(top
loading element)
È¿À²: 10%
Loran-C Á¤È®µµ: Àý´ëÁ¤È®µµ=0.1-0.25(geometry¿¡ µû¶ó ´Ù¸§), repeatability = 20-100m
Integrity:
ÃøÀ§¸¦ Çã¿ë¿ÀÂ÷ À̳»¿¡¼ °ü¸®ÇÏ´Â °Í. ¸ð´ÏÅͱ¹À» Loran-C Ä¿¹ö¿µ¿ª¿¡ ´Ù¼ö ¼³Ä¡ÇÏ¿© ½ÅÈ£¼ö½Å ºÐ¼®. ÀüÆÄ»óÅÂ(propagation conditions)ÀÇ º¯È¸¦ º¸»óÇϱâ À§ÇØ ¼Û½Å±â ŸÀ̹ÖÀ» ¸ð´ÏÅͱ¹ÀÌ Á¦¾î.
[Loran-C
and DGPS antenna collocation]
´ÙÀÌÇ÷º½Ì: µ¿ÀÏ ¾ÈÅ׳ª. µ¿ÀÏ ±ÞÀüÁ¡. °¢ ´ë¿ª¸¸ Åë°úÇÏ´Â ÇÊÅÍÀÇ Á¶ÇÕ »ç¿ë. ¸Å¿ì °í°¡. ±â¼úÀûÀ¸·Îµµ ¾î·Á¿ò.
Collocation:
µ¿ÀÏ ¾ÈÅ׳ª. ´Ù¸¥ ±ÞÀüÁ¡ »ç¿ë.
D. B.
Wolfe, J. L. Hartline, M. W. Parsons, M. E. McKaughan,
H. L. McCarter and C. A. Schue III, "Co-locating
DGPS and Loran transmitters," Proc. 2002
National Tech. Meeting of the Inst. of Naviga., San
Diego, CA, Jan. 28-30, 2002, pp. 352-361.; NDGPS + NAVTEX signal = µ¿ÀÏ ¾ÈÅ׳ª »ç¿ë(Savannah, GA). Ư¼ö ¾ÈÅ׳ª Á¤ÇÕȸ·Î¿Í ÇÊÅÍ°¡ »ç¿ëµÊ. NDGPS¿Í LoranÀÇ ¾ÈÅ׳ª °ø¿ë¼º= ·Î¶õ½ÅÈ£ ÆÞ½ºÆÄÇü ¿Ö°î ¹ß»ýÇÏ¿© ºÎÀûÇÕ.
[°ü·Ã ¾ÈÅ׳ª]
AM ¶óµð¿À¹æ¼Û: 10-250kW, 100-150m
KBS ³²¾ç¼Û½Å¼Ò: ÀÚ¸³½Ä öž (³ôÀÌ 150m), »ó´ÜÆø 2m, ´Ù¿î¸®µå±ÞÀüÁ¡ 115m, ÀÛ¾÷´ë 115/80/45m, ¾ÈÀüÀ²1.2ÀÌ»ó(dz¼Ó 60m/s) ±¸Á¶Çؼ®: 3Â÷¿ø Çã¿ëÀÀ·Âµµ¹ý(±¸Á¶±â¼ú»ç °ËÅä È®ÀÎÇÊ), ±âÃÊÁö¹Ý ÁöÁö·Â: ÀϹÝÁö¹Ý ±âÁØ ¼³°è, ±âÃÊ ÁöÁúÁ¶»ç¸¦ ½Ç½ÃÇÏ¿© ±âÃÊ ¼³°èÈÄ Ã¶Å¾ ±âÃÊ ¾ÈÀüµµÀÇ ±¸Á¶¼³°è»ç(±â¼ú»ç) È®ÀÎ º¸¿Ï µî ¿ë¿ªÀ» ¼öÇàÇÑ´Ù.
DGPS: 17°³ ¼³Ä¡(2008.10.22)ÇÏ¿© ³²ÇÏ , ¼Û½Å 500W, ¼Û½Å¾ÈÅ׳ª 90m,
ºÎÁö 30,000-52,000m2, Àü¿ë¼ö½Å±â, DMB(µðÁöÅÐ ¹æ¼Ûä³Î·ÎºÎÅÍ º¸Á¤½ÅÈ£ ¼ö½Å), ÈÞ´ëÆù(À̵¿Åë½Å¸Á, ÀÎÅͳݸÁ, DMB¸¦ ÅëÇØ º¸Á¤½ÅÈ£ ¼ö½Å)
Àü±¹¸Á¿Ï¼º. Àü±¹À§¼ºÇ×¹ýº¸Á¤½Ã½ºÅÛ(N-DGPS), ±âÁö±¹´ç °Ç¼³ºñ 50¾ï¿ø
°í¼±ÁØ, ¿øÁ¾ÈÆ, ¹ÚÇåÁØ, ÀÌÀÚ¼º, "À̵¿ÀüÈ¿Í ÀÎÅͳÝÀ» ÀÌ¿ëÇÑ DGPS º¸Á¤Ç×¹ý ½Ã½ºÅÛ", 2000³âµµ ´ëÇÑÀü±âÇÐȸ ÇÏ°èÇмú´ëȸ ³í¹®Áý, pp. 2359-2361, 2000³â 7¿ù.
°Å¹®µµ DGPS ¼Û½Å¾ÈÅ׳ª [±¹ÅäÇؾçºÎ]
¾ÈÅ׳ª: 90m »ï°¢Áö¼±(guy wire)½Ä, ¼Û½ÅÃâ·Â 500W, ºÎÁ÷ ¾à 200x200m2
±¹ÅäÇؾçºÎ, "¿ÀÂ÷ 1m·Î ÁÙ¾îµç À§Ä¡Á¤º¸¼ºñ½º Á¦°øµÈ´Ù", º¸µµÀÚ·á, 2008³â 10¿ù 22ÀÏ.
2006³âºÎÅÍ 2008³â±îÁö ¸Á¿Ï¼º. °úÇбâ¼úÇõ½Åº»ºÎ Áß½ÉÀ¸·Î ¹üºÎó »ç¾÷À¸·Î ÃßÁø.
ÁÖÆļö 287, 287.5, 295, 300, 313,
283.5-315kHz(1Áö¿ª), 285-325kHz(2/3Áö¿ª), 75-335kHz ´ë¿ª. ¹Ý°æ 100¸¶ÀÏ ¿µ¿ª ¼ºñ½º.
À§Ä¡Á¤¹Ðµµ 1-3m(ÀϹݿë, ½ÇÁ¦ 0.3m ÀüÈÄ·Î ÃøÁ¤µÊ), 1-3cm(»ê¾÷¿ë), 1cm ÀÌÇÏ(Á¤¹ÐÀÛ¾÷¿ë, °úÇбâ¼ú¿ë)
Áö»óÆĺñ»óÅë½Å¸Á(GWEN) ¾ÈÅ׳ª: 299ÇÇÆ®(100m) ¿ì»êÇü top load ¼³Ä¡. ´ë¿ªÆø 30-80kHz @ 300kHz, È¿À² 55%
ATU´É·ÂÀÇ ÇÑ°è, ¹Ý»çÆÄ¿¡ ÀÇÇÑ ¼Û½ÅÁß´Ü ÀÚÁֹ߻ý, Á¢ÁöºÎºÐ°ú Àý¿¬¾ÖÀÚ °³·®, corona ring º¸¿Ï
¼ö½Å±â 30udB/m
ÀüÆÄÀüÆÄ: Çؼö¸é 185km, ºôµù/»ê¾ÇÁö¿ª 80-100km (°Ü¿ï 80km, ¿©¸§ 100km)
Loran-C: 45uB/m
¹ÚȲÈÆ, Çؾç¿ë À§¼ºÇ×¹ýº¸Á¤½Ã½ºÅÛ(DGPS) È°¿ë ´Ù¾çÈ¿¡ °üÇÑ ¿¬±¸, ¼®»çÇÐÀ§³í¹®, ÀÎÇÏ´ëÇб³, 2004³â 2¿ù.
¾ÈÅ׳ª ÀÓÇÇ´ø½º:
Áö¸é À¯ÀüÀ², Àüµµµµ Á¤È®ÇÑ ¸ðµ¨¸µ
¾ÈÅ׳ª ±âÀúºÎ Àý¿¬Ã¼¿¡ ÀÇÇÑ º´·Ä Ä¿ÆнÃÅϽº: ÀÓÇÇ´ø½ºÀ» º¯È½ÃÅ´.
¾ÈÅ׳ª ±ÞÀü¼±: À¯µµ¼º ÀÓÇÇ´ø½º Ãß°¡.