Just wanted to add to the dogpile about ISS APRS signal quality. Myself and others have noticed here in the Seattle area the same deafness since APRS came back online. We've tried on different th-d74s with arrow and elk antennas. I used to be able to reliably hit ISS on 5W with that setup. We've now seen that pumping 45 or 50 watts into one of those directional antennas is relatively successful, but 5W almost never works.

Also, in the past, I've had no problem with my kenwood tm-d710 connected to a roof-mounted comet gp-3. 50 watts reliably worked to get digipeated at relatively low passes. Now, not so much.

73, Matt KS9O