I've been using an up-converter with my FT-920 for 136 and 475kHz monitoring. This up-converter has a 4MHz IF so when I upload spots using WSJT it dutifully reports the frequencies as being 4.136 and 4.475MHz, therefore the spots don't appear on WSPRnet correctly.

Anyone know a way of correcting the problem?

Regards,
Keith G0RQQ