드론이나 UAV용 무선 전송 솔루션을 선택할 때, customers often ask about OFDM 대 COFDM, Pixhawk telemetry integration, and performance in obstructed environments. Here we answer the most common questions.

Q1: Can TX900 be modified to use COFDM technology?

에이: 아니, TX900 is based on OFDM with TDD (시분할 듀플렉스). It is optimized for low-latency video and bidirectional telemetry and cannot be converted to COFDM.

2분기: Why consider COFDM instead of OFDM?

COFDM is preferred when NLOS performance 중요하다, 와 같은 도시 지역, mountainous terrain, or obstructed environments. Its advantages include:

강한 diffraction and multipath resistance
Reliable video transmission in harsh RF conditions
High stability in challenging environments

Q3: OFDM vs COFDM – Key Differences

특색	OFDM (TX900)	COFDM
System Complexity	낮은	더 높은
지연 시간	낮은 (실시간 제어)	Slightly higher
Best Environment	로스 / Semi-LOS	NLOS / Obstructed
데이터 + 동영상	Bidirectional telemetry & HD 비디오	Video-centric; telemetry may need adaptation
듀플렉스	TDD	Usually FDD

4분기: COFDM Solutions for UAVs

If COFDM is needed, 우리는 추천한다:

Vcan1886 Mini COFDM Module

FDD-based COFDM transmission
동영상 + data over Ethernet (RJ45)
Suitable for NLOS environments
View Product

Customized High-Power COFDM Options:

300–500 MHz COFDM IP RJ45 Transceiver, 10 PA에서는
View Product
336–554 MHz COFDM IP FDD Transceiver, 5 PA에서는
View Product

메모:

Larger/heavier enclosures – less suitable for small UAVs
RS232 data output only; Pixhawk requires RS232-to-TTL conversion

Q5: How to choose between TX900 (OFDM) and COFDM?

Choose TX900 (OFDM) 만약에:

LOS or lightly obstructed environment
Low-latency video and telemetry is required
UAV size and weight are limited

Choose COFDM 만약에:

NLOS or harsh environment
Diffraction and multipath resistance are critical
Slightly larger hardware is acceptable

Q6: Integrating COFDM with Pixhawk

RS232-to-TTL conversion may be needed
Integration requires planning due to limited data ports
Works best when NLOS reliability is more important than minimal latency

결론:
TX900 OFDM modules are ideal for lightweight UAVs in LOS conditions, 배달하다 low-latency video and telemetry. COFDM solutions provide better NLOS performance, but may require larger hardware and additional integration effort for Pixhawk telemetry.