T O P I C R E V I E W |
wingman |
Posted - 06/24/2018 : 20:39:37 ¤@ª½·Q¤£³qªê¦¡ª½¤É¾÷¾÷¨®Ç©µ¦ù¦Ü¾÷§Àªº»È¦â±øª¬ª«¬O¤°»ò¥Î³~? ³Ò½Ð«e½ú¤£§[½ç±Ð¡C https://vpk.name/news/85714_germaniya_priostanovila_poletyi_vertoletov_tiger.html |
15 L A T E S T R E P L I E S (Newest First) |
wingman |
Posted - 06/30/2018 : 20:52:12 ¶â¡AÁÂÁ¡A¤Ó¦n¤F¡A²×©ó§Ë²M·¡¤F!!!😁 |
MikeH |
Posted - 06/30/2018 : 04:48:27 quote: ¦ÑÁ󳣬OASUªº¤@ÓIEEE fellow. ¬Ý¨Ó¥LÌ·ÓApacheªº¤Ñ½uModel°µ¤F¤£¤Ö¬ã¨s.
¥ð´µ/³Á¹D/ªiµª½¤É¾÷¼t´N¦b¨È§Q®á¨º¦{ ¹õ«áª÷¥D©I¤§±ý¥X :)
=== ¦a¤Ux¤õ®w https://www.facebook.com/BasementArsenal/ |
cwchang2100 |
Posted - 06/30/2018 : 03:42:10 https://ieeexplore.ieee.org/document/789186/ Analysis of HF antennas on a helicopter in the presence of a stratified ground
... In this paper, HF antennas, such as a 14-ft towel-bar and a 24-ft inverted-L on the AH-64 (Apache) full-scale helicopter, are analyzed in the presence of a stratified ground. ...
³oùئ³¤@½g1999¦~ªºIEEE½×¤å,¯S§O°w¹ïªü©¬«´ªº14¤Ø¤ò¤y¬[©M24¤ØËL°ªÀW¤Ñ½u°µ¥X²{¦a±®ÄÀ³ªº¤ÀªR.
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https://www.researchgate.net/publication/3011201_Helicopter_rotor-blade_modulation_of_antenna_radiation_characteristics?_sg=n1w3KzOxJwBr_1OARzMr0tYqi0DkfMLx77k1qdoiDOwV1_m3kQ7QHqBSPr63eYfe7vAyE2gUBg
Helicopter Rotor-Blade Modulation of AntennaRadiation Characteristics Anastasis C. Polycarpou, Member, IEEE, Constantine A. Balanis, Fellow, IEEE, andAndrej Stefanov, Student Member, IEEE, IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 49, NO. 5, MAY 2001
... This paper investigates rotor modulation on the gain and input impedance of an antenna mounted on a helicopter¡¦s fuselage. ...
¥t¤@½g2001¦~ªºIEEE½×¤å´N¬OÁ¿ª½¤É¾÷Á³±Û¼Õ¹ï¾÷§À¦w¸Ëªº¤Ñ½u©Ò²£¥Íªº®ÄÀ³. ¦P¼Ë¤]¬O°w¹ï14¤Ø¤ò¤y¬[©M24¤ØËL°ªÀW¤Ñ½u,¤§«eªº¨ºÓ½u±ø¥Ü·N¹Ï´N¬O¥X¦Û¦¹½g½×¤å.
¥Dnªº¤ÀªRÁÙ¬O°w¹ï14¤Ø¤ò¤y¬[¦bNVIS(Near vertical incidence skywave)¼Ò¦¡¤Uªº®Ä¯à. ©Ò¿×ªñ¦ü««ª½¤J®g¤Ñªi,´N¬O¾a¹qÂ÷¼h¤Ï®gªº°ªÀW³q«H.
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¤£¹L,¤W±¨â½g½×¤åªº§@ªÌ³£¬O¦P¤@§å¤H,¥u¦³¤@Ó§@ªÌ¦³´«¤H. ¦ÑÁ󳣬OASUªº¤@ÓIEEE fellow. ¬Ý¨Ó¥LÌ·ÓApacheªº¤Ñ½uModel°µ¤F¤£¤Ö¬ã¨s. ¤£¹L¨ºÓ¼Æ¦ìApache Model¦n¹³¬ONASA¨Óªº.
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MikeH |
Posted - 06/30/2018 : 02:41:44 ½¥X¤@±i±N HF ¤Ñ½u¸Ë¦b±ÛÁl¤Wªº±M§Q ¥Ø«e§Þ³N¤W¬O§_¥i¦æ ´N¤£ª¾¤F https://patents.google.com/patent/US5745081
=== ¦a¤Ux¤õ®w https://www.facebook.com/BasementArsenal/ |
wingman |
Posted - 06/30/2018 : 00:05:06 «z¡A¯u¬O·PÁ¤j®a¡A¤Wºô¬d¤F¦Ñ¥b¤Ñ¡A¬Æ¦ÜÁÙ¶]¥h°ê¹Ï§ä®Ñ¬d¡A¤]§Ë¤£²M·¡¡A¨Ó³o¸Ì½Ð±Ð¤@¤U´N«Ü§Ö¦³µª®×¡AÁÂÁ¤j®a¡AÁÂÁÂ!!! |
cwchang2100 |
Posted - 06/29/2018 : 22:26:09
¦¹¸Ë¸m¥þ¦W¬°"24^¤Ø¤ÏL«¬¤ò¤y¬[¦¡°ªÀW¤Ñ½u"(24-ft inverted L/Loop ("towel bar") HF antenna). ¤Ø¤o¬O¦³¸g¹L¹qºÏ¤ÀªRªºµ²ªG.
PS: Àô§Î(loop)¤Ñ½u¦b¦¹¤]ºÙ¤ò¤y¬[«¬(towl bar)¤Ñ½u.
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dasha |
Posted - 06/29/2018 : 19:07:33 ¤U±³oÓ³sµ²¹ïHF³q«H¨ä¹ê¼g±oÆZ²M·¡ªº: https://read01.com/0y3keo.html#.WzYRqtIzaM8 ¹L¥h¬O¼sªx¨Ï¥Îªº³Æ¥÷¨t²Î,¦ý¤zÂZ¦h¥B¸ê®Æ¶Ç¿é¶q§C,²{¦b´N¬O¤õ»L±Ú»PµL½u¹q¥x¤j´T´î¤Ö,¥[¤W·s§Þ³N¤j·§¥i¥H¦³¤ñ¸û¦nªº©w¦V¯à¤O»P¸ê®ÆÀ£ÁY¯à¤O. ¦Ó¹L¥hªºHF¥i¥H¥Î§Îª¬¤ñ¸û²³æªºÀôª¬¤Ñ½u¤§Ãþ,§A¬Ý¤£¨ì¦bþÃä,²{¦bn§ï¦¨³oºØª½½u¦Ó¥BÁÙ¦b¬Y¨Ç³¡¦ìÅs¦±ªº¤Ñ½u,¨ºn¤£¬O¦³·sªº©w¦ì¤§Ãþ¥\¯à,´N¬O»¡¨ºÓ¤£¬OHF¥Î...... |
over55Stars |
Posted - 06/29/2018 : 17:01:08 °Ñ¦Ò±i©ú¼w¤j¤H©ÒµÛ "AH-64 ªü©¬«´§ðÀ»ª½¤É¾÷" ¤@®Ñ¡@¡]x¨Æ³s½u MOOK 13¡^ ¦Û²Ä 105 ¶°_´£¨ìªº AH-64D Block II ³q«H¨t²Î§ó·s ¡@¡@¼W³] ARC-220 µL½u¹q, §ïµ½¶W§CªÅ¸¦æ®Éªº³q«H¯à¤O ¡@¡@HF µL½u¹q¥i¸g¹qÂ÷¼h¤Ï®g, ÁקK VHF¡NUHF ¸û®e©ö³Q»Ùꪫ¾B¦í
ªü©¬«´¾÷¶¤À³¸Ó¬O¥»¥@¬ö¤~¦w¸Ë¡]©Î¾÷§ï¸Ë¡^³o®MµL½u¹q ¤WÓ¥@¬ö¥½ªº¾Ô³õ/½Ä¬ð¤¤ªº¨Ï¥Î¸gÅç, ¨ºn§ó¦h®É¶¡¦Ò¾Ú ½Ð®¤¦b¤U¯à¤O¤£¨¬
§ó·s³q°T¨t²În¬Ý¨Ï¥Î°êªº»Ý¨D¡B¹B¥Î¤è¦¡ AH-1 ®a±Ú¦ü¥G´N¨S¦³°ªÀWµL½u¹q, §Y¨Ï¬O³Ì·sªº AH-1Z ¦ü¥G¤]§ä¤£¨ì «X¨tªº§ðÀ»ª½ª@¾÷¦ü¥G¤]¨S¬Ý¨ì¬Û¦üªº¤Ñ½u ¨ä¥L¾÷ºØ¨s³º¬O¿ïÁʩΫáÄò§ï¸Ë, ¨º¤]»Ýn¦Ò¾Ú
¦Ü©ó¤Ñ½uºØÃþ¤Î¦w¸Ë¦ì¸m¡B¦w¸Ë¤è¦¡ ¨º´N¦³¿à½Ñ¦ì¤j¤H¶}¥Ü¤F ¡@¡]²¦³º¤£¬O¼çÄ¥ TACAMO ¨ººØÁöµM©_¸´, ¦ýª¾¹Dì²z«á´N¯à²z¸Ñªº¨t²Î¡^ |
¤p¤ò |
Posted - 06/28/2018 : 18:48:42 ³oÃä¤]¦³¤@¨Ç¸Ñ»¡¹Ï¡G https://forums.eagle.ru/showthread.php?t=98895
** ¤p¤òªº·s¤Û·QªÅ¶¡³vº¥´_¬¡¤¤(·s¼W3D¹Ï³á).....** http://lordmrx.pixnet.net/blog Åwªï°ÑÆ[ |
over55Stars |
Posted - 06/28/2018 : 18:36:05 HF ªº¤Ñ½u¦ü¥G¬O¤ñ¸û±ßªñ¤~½T»{ªº»Ý¨D ? ¡@¡]ªiªø 10m~100m µ¥¯Å, 1/4 ªiªøªº¥þ¦V¤Ñ½u¤w¸g¬O³Ì§C®ø¶O¤F¡^ ¦ü¥G³£¸Ë¦b§¾ªÑ/§À®ì¨ºÓ¦ì¸m ¨Ì¤j¥»À窺·Ó¤ù, ¨Ã«D¤H¤H¦³¼ú, ¦ý¤]¤£¬O¤Óµ}¨uªº¸Ë³Æ ¡@¡@http://www.mdc.idv.tw/mdc/army/tiger.htm ¡@¡@http://www.mdc.idv.tw/mdc/army/ah-tw.htm¡@¡]¤ÑÆN®×¡^ ¡@¡@http://www.mdc.idv.tw/mdc/army/wz10.htm¡@¡]ªZª½-10§ðÀ»ª½ª@¾÷/ªZª½-19¥¸Ôª½ª@¾÷¡^ ¡@¡@http://www.mdc.idv.tw/mdc/army/CSH2.htm¡@¡]«n«D ¯ùÔG¦¡¡^ ¡@¡@http://www.mdc.idv.tw/mdc/army/a129.htm¡@¡]¸q¤j§Q A129¡^ |
wingman |
Posted - 06/28/2018 : 17:08:04 ¬Oªº¡Adasha ¤j¡A¸ò¤p¤ò¤j¡A´N¬O¨º¤@®Ú¡A¹ê¦b·Q¤£³z¬°¤°»ò«D±o¬[¦b¾÷Åé¥~±...
over55Stars ¤j¡A §Ú¤]¦³·Q¹L¬O¤Ñ½u¡A¦ý¤Ñ½uªºªø«×¦³»Ýn³o»òªø¶Ü? |
¤p¤ò |
Posted - 06/28/2018 : 16:23:38 ³oÓ¤]¦³ https://militaryedge.org/articles/france-qatar-agrees-2-bln-euro-helicopter-order/
** ¤p¤òªº·s¤Û·QªÅ¶¡³vº¥´_¬¡¤¤(·s¼W3D¹Ï³á).....** http://lordmrx.pixnet.net/blog Åwªï°ÑÆ[ |
¤p¤ò |
Posted - 06/28/2018 : 16:20:07 ³o¤@¬[¤]¦³....
http://australianaviation.com.au/2017/04/h145-receives-a-power-boost/
** ¤p¤òªº·s¤Û·QªÅ¶¡³vº¥´_¬¡¤¤(·s¼W3D¹Ï³á).....** http://lordmrx.pixnet.net/blog Åwªï°ÑÆ[ |
over55Stars |
Posted - 06/28/2018 : 15:46:10 °ªÀW¡]HF¡^µL½u¹q ? |
dasha |
Posted - 06/28/2018 : 08:12:46 ±z»¡¥¦æ©ó§À±ÛÁl¶Ç°Ê¶b¦b¥~±¨º±ø?¤£ª¾¹D,¦Ó¥B¬Ý¨Ó¦³¨ÇEC665¨Ã¨S¦³,¦n¹³¬O«á¨Ó¥[¸Ëªº...... |