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| Model No. | MPIDM | CMIDM | GCRGI |
| Iridium Certification | |||
| Iridium | |||
| GPS | N/A | N/A | |
| Iridium Center Frequency | 1621 ± 3 MHz | 1621 ± 3 MHz | 1621 ± 3 MHz |
| Bandwidth | 20 MHz Min. at -10 dB | 20 MHz Min. at -10 dB | 20 MHz Min. at -10 dB |
| Axial Ratio | 3dB Max. @ 0° | 3dB Max. @ 0° | 3dB Max. @ 0° |
| Efficiency | 70% Min. (Without ground plane) | 70% Min. (Without ground plane) | 70% Min. (Without ground plane) |
| Impedance | 50Ω | 50Ω | 50Ω |
| Peak Gain | 4dBic Min @ 0° | 4dBic Min @ 0° | 5dBic Min. @ 0° |
| Polarization | RHCP | RHCP | RHCP |
| GPS Center Frequency | N/A | N/A | 1575.42± 3 MHz |
| Gain Coverage | N/A | N/A | 4dBic Min. |
| Amplifier Gain | N/A | N/A | ≧ -4dBic at –90° ≤ θ ≤ 90°(over 75% volume) |
| Filtering | N/A | N/A | At ±40MHz 35dB; At ±75MHz 40dB; At ±100MHz 45dB |
| DC Voltage | N/A | N/A | DC 2.7 V to 6.0V |
| DC Current | N/A | N/A | 12 ± 5.5 mA |
| Housing Material | ABS+PC | ASA | ASA |
| Housing Color | Black | Black | White |
| Weight (Without Cable) | 42 grams Max. | 75 grams Max. | 280 grams Max. |
| Dimension | 48x40x13mm | 75mm Dia. * 15.8mm | 100mm Dia.× 67mm(39mm+28mm) |
| Connector | Custom | Custom | Custom |
| RF Cable | Custom | Custom | Custom |
| Cable Length | Custom | Custom | Custom |
| Mounting | Magnetic base | Magnetic base | Permanent mount |
| Degrees of Protection | IP67 | IP67 | IP67 |