Firstly, I did not consider that frequency displayed on the commercial rigs is TX frequency even though frequency of uBitx is RX.
But I am still wondering why the difference of frequency between my ICOM transceiver and uBitx is 1.5Hz but not off set . 1.5KHz might be double of 700 or 800 Hz off set.
I think many uBitx user have been making the contact on CWL or CWU?mode by uBitx. So there is something I have not understood about offset of CW. I would like to examine the cause of the frequency difference of 1.5KHz.
73! Akira JJ1EPE
-- Best 73 KD8CEC / Ph.D ian lee kd8cec@... (my blog)