표 3. | Table 3. 운용 최적화(위치 조정·안테나 틸트)에 따른 성능 개선 효과 | Impact of operational optimizations (relocation and antenna tilt) on link performance.

Optimization action	Applied link (segment)	Adjustment	Before (SNR)	After (SNR)	Implications
Relay UAV position adjustment	Relay UAV-Recon UAV	Move ～30 m toward the command post near the link-threshold region	10～11 dB	Improved by ～15 dB	Mountainous terrain is sensitive to local propagation-path changes; on-site relocation criteria are required
Command-post antenna tilt adjustment	Command post-Relay UAV	Slightly up-tilt the command-post panel antenna (+6°)	Unstable (low sensitivity)	Stable at 16～20 dB	Geometric alignment reflecting elevation differences is effective