I recently acquired a Yaesu FT-817ND. My question is to current users of this fine little rig. I have read in other forums, PSK-31, etc., that the TCXO-9 is highly recommended for the 817 for use in digital modes. While the TCXO-9 is only USD $100.00 or so, is it needed for WSPR? How about other digital modes? Anyone that has used the 817 for digital both before and after installing the TCXO have any comments?

Thanks,
Jim