Author	SHA1	Message	Date
Graham McIntire	f93f5c9a57	Rename 9cm band 3456 → 3400 ... The US 9cm amateur allocation was cut from 3300-3500 to 3300-3450 MHz in 2020, so 3456 (the legacy weak-signal calling frequency) is no longer in-band. Move the canonical key to 3400, migrate existing contacts, and keep 3456 input resolving to 3400 via the nearest-band snap so historical ADIF/CSV logs still import cleanly.	2026-04-16 12:40:38 -05:00