bids are invited for long range aerial surveillance equipment --1.1 inertial optical flow module 1.2 wideband communication capable of operating in 2 frequency ranges: 865-870 mhz and 5.1-5.9 ghz 1.3 frequency hopping 1.4 5 ghz sdr module 1.5 helical antenna 1.6. antenna tracker 2.1. high-voltage esc 2.2. rated voltage (vdc): 7.4 to 22.2 2.3. rated current (a): 40 a 2.4. no. of phase:3 2.5. operating temperature (°c): 70 or more 2.6. communication protocol: dshot300, pwm 2.7. dimensions (mm): 27*10 2.8. input voltage: supports 6s li-po battery (~25 v) operation. 2.9. current rating: approximately 40 a continuous current 1.12. capability for sustained performance in haa (15000 ft) 2.10. supports pwm (pulse width modulation) for accurate and responsive motor control. total quantity : 43