WSJT-X documentation recommends Q65-60B at 432 MHz for EME, but I see many stations still using JT65B. Running 4x17el array with 1kW and want to optimize for weak signal work. Technical question: What's the actual sensitivity difference between these modes? Q65 uses 1/3 the bandwidth of JT65B and numerical signal reports, but does this translate to real-world performance gains on 70cm EME?

Q65 is particularly effective for EME on VHF and higher bands with better performance than JT65. The narrower bandwidth helps significantly on 432 MHz where full 360-degree Faraday rotation is possible. I've seen 2-3dB improvement switching to Q65-60B.

Been using both modes extensively on 70cm EME. The development team encourages switching from JT65 to Q65 for good reasons. Q65's drift compensation handles drifts up to 25 Hz per transmission much better than JT65, crucial for libration fading.

Still learning digital modes myself, but noticed WSJT software suite including JT65 is widely used for its ability to decode extremely weak signals. Would love to hear more real-world comparisons between these modes from experienced EME operators.