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| sp e - 14 - 8 - 114 /a/wy page 1 of 12 specification part number: ima.01 .105111 product name : external iridium ? marine antenna features : 1616mhz ~1626.5mhz iridium antenna antenna efficiency > 65% with 1.0 meter standard cable ip67 waterproof standard 1m cfd - 200 coaxial cable bracket - mount custom cables and connectors available dim s: 108mm ? 90mm rohs complaint
sp e - 14 - 8 - 114 /a/wy page 2 of 12 1. introduct ion the ima .0 1 iridium marine antenna is a high performance, durable, bracket mount antenna which is designed for applications using the iridium? satellite communication system. the durable ip67 rated housing and bracket mount makes the ima.01 the ideal solution for permanent marine installations. the antenna exhibits excellent efficiency, greater than 65% with the standard 1.0 meter cfd - 200 coaxial cable. iridium? has certified the ima.01 antenna for commercial use in connection with the iridium communications system. iridium satellite llc is the owner of iridium? and all other iridium trademarks, service marks, and logos contained herein. the ima.01 antenna is designed for free air operation, thus no ground plane is required. sp e - 14 - 8 - 114 /a/wy page 3 of 12 2. specification electrical band iridium center frequency (mhz) 1621 .5 5.25mhz range of receiving frequency (mhz) 1621~1626.5 impedance (ohms) 50 ohms polarization right hand circular vswr cable length (meter) 0.5 2.0 1.0 1.8 2.0 1.7 3.0 1.6 5.0 1.5 efficiency (%) cable length (meter) 0.5 79.3 1.0 75.6 2.0 67.4 3.0 45.1 5.0 38.3 return loss (db) cable length (meter) 0.5 - 8.9 1.0 - 10.5 2.0 - 11.5 3.0 - 12.7 5.0 - 13.7 peak gain (dbi) cable length (meter) 0.5 4.0 1.0 3.9 2.0 3.7 3.0 2.2 5.0 1.3 mechanical dimensions ? 90x 108mm cable cfd - 200 coaxial , 1 meter length connector sma (m) 50 ohms termination ag (environmentally - friendly pb free) protection ip67 w eight 108 grams environmental temperature range - 40c to +85c storage temperature - 40c to +85c relative humidity 40% to 95% shock (drop test) 1m drop on concrete 6 axes sp e - 14 - 8 - 114 /a/wy page 4 of 12 3. test set up figure 1 . impedance (left hand) , efficiency , peak gain , and radiation pattern measurements (right hand) . 4. antenna parameters 4 .1. return loss f igure 2 . return loss of the ima.01 antenna . sp e - 14 - 8 - 114 /a/wy page 5 of 12 4 .2. vswr f igure 3. vswr of the ima.01 antenna . 4.3 efficiency f igure 4 . efficien cy of the ima.01 antenna . sp e - 14 - 8 - 114 /a/wy page 6 of 12 4 . 4 peak gain figure 5 . peak gain of the ima.01 antenna. 4 .5 . 3d radiation pattern f igure 6 . radiation pattern of the antenna ima.01 at 1616 m hz with 1 meter cable length . sp e - 14 - 8 - 114 /a/wy page 7 of 12 f igure 7 . radiation pattern of the antenna ima.01 at 1621 m hz with 1 meter cable length . f igure 8 . radiation pattern of the antenna ima.01 at 1626 m hz with 1 meter cable length . sp e - 14 - 8 - 114 /a/wy page 8 of 12 4 .6 . 2d radiation pattern f igure 9 . xy plane radiation pattern of the antenna ima.01 with 1 meter cable length . f igure 10 . yz plane radiation pattern of the antenna ima.01 with 1 meter cable length . sp e - 14 - 8 - 114 /a/wy page 9 of 1 2 5 . mechanical drawing sp e - 14 - 8 - 114 /a/wy page 10 of 12 5.1 bracket sp e - 14 - 8 - 114 /a/wy page 11 of 12 5.2 u - bolt sp e - 14 - 8 - 114 /a/wy page 12 of 12 6. p ackaging |
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