On 6/11/2012 2:51 PM, Joe Subich, W4TV wrote: > Jim is slightly optimistic. The "nominal" audio frequency for the > JT65A software is 1270.5 Hz and the "window" is ± 1000 Hz (see: pg > 35, JT65-hf-setup.pdf distributed with the JT65HF package by W6CQZ). Joe is right -- it's 2 kHz wide. Thanks for the correction. 73, Jim K9YC