Hi All, I was going to ask the question, but I've just worked it out. If anyone wants to know how to change the step on the remote RM-MC39LT on either the MZ-NF810 or the MZ-NHF800 (I can't find it in either of the manuals), here's how you do it. Turn the radio on and make sure it is on the AM band. Hold the Display button down until the word 'step' starts flashing. Press down on the jog lever so that either 'step9k' or 'step10k' appears. Using the jog dial either pushing left or right you can change the step. If you originally had a 10k step, you may also get the option 'A Preset'. I didn't play around with this so I'm guessing that it can automatically search for stations and puts them into the presets. Once you have chosen the step, press again on the jog lever. All done. Unfortunately you will lose all your presets, but like myself who damaged one of these remotes and bought another one over ebay, and had been stuck with a AM radio with a 10k step (no good in Australia), it will be a relief to be able to change between the two. Hope this helps. Finn