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 Dims: 108mm Ø90mm RoHS Complaint SPE-14-8-114/A/WY Page 1 of 12 1. INTRODUCTION The IMA.01 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. SPE-14-8-114/A/WY Page 2 of 12 2. SPECIFICATION ELECTRICAL Band Iridium Center Frequency (MHz) Range of Receiving Frequency (MHz) Impedance (Ohms) Polarization VSWR 0.5 1.0 Cable length 2.0 (meter) 3.0 5.0 Efficiency (%) 0.5 1.0 Cable length 2.0 (meter) 3.0 5.0 Return Loss (dB) 0.5 1.0 Cable length 2.0 (meter) 3.0 5.0 1621.5±5.25MHz 1621~1626.5 50 Ohms Right Hand Circular 2.0 1.8 1.7 1.6 1.5 79.3 75.6 67.4 45.1 38.3 -8.9 -10.5 -11.5 -12.7 -13.7 Peak Gain (dBi) Cable length (meter) 0.5 1.0 2.0 3.0 5.0 4.0 3.9 3.7 2.2 1.3 MECHANICAL Dimensions Ø90x108mm Cable CFD-200 Coaxial , 1 meter length Connector SMA (M) 50 Ohms Termination Ag (Environmentally-Friendly PB Free) Protection IP67 Weight 108 grams ENVIRONMENTAL Temperature Range Storage Temperature -40°C to +85°C -40°C to +85°C Relative Humidity 40% to 95% Shock (Drop Test) 1m drop on concrete 6 axes SPE-14-8-114/A/WY Page 3 of 12 3. TEST SETUP Figure 1. Impedance (left hand), Efficiency, peak gain, and radiation pattern measurements (right hand). 4. ANTENNA PARAMETERS 4.1. Return Loss Figure 2. Return Loss of the IMA.01 antenna. SPE-14-8-114/A/WY Page 4 of 12 4.2. VSWR Figure 3. VSWR of the IMA.01 antenna. 4.3 Efficiency Figure 4. Efficiency of the IMA.01 antenna. SPE-14-8-114/A/WY Page 5 of 12 4.4 Peak Gain Figure 5. Peak Gain of the IMA.01 antenna. 4.5. 3D Radiation Pattern Figure 6. Radiation pattern of the antenna IMA.01 at 1616 MHz with 1 meter cable length. SPE-14-8-114/A/WY Page 6 of 12 Figure 7. Radiation pattern of the antenna IMA.01 at 1621 MHz with 1 meter cable length. Figure 8. Radiation pattern of the antenna IMA.01 at 1626 MHz with 1 meter cable length. SPE-14-8-114/A/WY Page 7 of 12 4.6. 2D Radiation Pattern Figure 9. XY Plane Radiation Pattern of the antenna IMA.01 with 1 meter cable length. Figure 10. YZ Plane Radiation Pattern of the antenna IMA.01 with 1 meter cable length. SPE-14-8-114/A/WY Page 8 of 12 5. MECHANICAL DRAWING SPE-14-8-114/A/WY Page 9 of 12 5.1 Bracket SPE-14-8-114/A/WY Page 10 of 12 5.2 U-Bolt SPE-14-8-114/A/WY Page 11 of 12 6. PACKAGING SPE-14-8-114/A/WY Page 12 of 12