Product overview
The GEPRC SOMA 1.2G/1.3G DUAL Antenna is an image-transmission accessory for use during flight. Its dual-core RF architecture is intended to enhance gain and coverage, with separate 1.2G and 1.3G configurations. The 1.2G version has a 1200 MHz center frequency and a 1140–1260 MHz bandwidth; the 1.3G version has a 1300 MHz center frequency and a 1260–1360 MHz bandwidth. Both use right-hand circular polarization and specify an average gain of 3.26 dBi.
The physical construction combines FPC and PCB antenna elements with an ABS enclosure and an SMA connector. Ultrasonic welding secures the assembly. Both configurations weigh 30.6 g and specify a length of 170mm+80mm, providing dimensions and mass for installation planning. Their average VSWR limits differ: ≤1.50 for 1.2G and ≤1.46 for 1.3G. Both specify 75% average radiation efficiency and -25 dB cross polarization suppression. The supplied configuration consists of one antenna, identified in the contents as a Momoda 1.2G/1.3G DUAL Antenna.
Specifications
| Specification | Value & conditions |
|---|---|
| Product | GEPRC SOMA 1.2G/1.3G DUAL Antenna |
| Frequency options | 1.2G, 1.3G |
| Purpose | Antenna for image transmission during flight. |
| RF architecture | Dual-core RF architecture intended to enhance gain and coverage. |
| Model | GEPRC SOMA 1.2G DUAL Antenna1.2G configuration. |
| Center frequency | 1200MHZ1.2G configuration. |
| Bandwidth | 1140 -1260MHZz1.2G configuration. |
| Model | GEPRC SOMA 1.3G DUAL Antenna1.3G configuration. |
| Center frequency | 1300MHZ1.3G configuration. |
| Bandwidth | 1260 – 1360MHZ1.3G configuration. |
| Polarization | RHCP1.2G and 1.3G configurations. |
| Average gain | 3.26dBi1.2G and 1.3G configurations. |
| Axial ratio | ≤31.2G and 1.3G configurations. |
| Average VSWR | ≤1.501.2G configuration. |
| Average VSWR | ≤1.461.3G configuration. |
| Average radiation efficiency | 75%1.2G and 1.3G configurations. |
| Cross polarization suppression | -25dB1.2G and 1.3G configurations. |
| Length | 170mm+80mm1.2G and 1.3G configurations. |
| Antenna design | FPC+PCB1.2G and 1.3G configurations. |
| Antenna weight | 30.6g1.2G and 1.3G configurations. |
| Enclosure material | ABS1.2G and 1.3G configurations. |
| Connector | SMA1.2G and 1.3G configurations. |
| Assembly method | Ultrasonic welding. |
| Package contents | 1 x Momoda 1.2G/1.3G DUAL AntennaSupplied equipment. |
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