Power Voltage5V10~35V12V12V
| Model | COFDM-901T | COFDM-902T | COFDM-903T | COFDM-904T |
| Transmitter Pictures |  |
 |
 |
 |
| Price | $406 | $483 | $1,365 | $683 |
| Unique Selling Point | Smallest | CVBS Input | Quality best | Recommended Popular |
| RF Frequency (optional) | 1500Mhz | 900Mhz | ||
| RF Frequency ( default) | 839,832,846,853, 906,912,918,924 |
Pre-set at Factory: 170~900Mhz | Operate at extra board | |
| RF Power | 200mw | 1W | 1W | 1W |
| Delay | 200 millisecond | 200 millisecond | 200 millisecond | 200 millisecond |
| HDMI input | Yes | Yes | Yes | Yes |
| CVBS input | No | Yes | No | Yes |
| Air To Ground Distance (Line-Of-Sight, UAV, Drone) | 3km | 8km | 15km | 10km |
| Ground LOS Distance (Line-Of-Sight) | 500m | 800m | 1km | 1km |
| Ground NLOS Distance (Non-Line-of-Sight) | 200m | 500m | 600m | 600m |
| Weight | ||||
| Dimensions | 52 X 40 X 14mm | 100 × 43 × 10mm | 118 X 66 X 22mm |
