Lacks more than that. Tried different modes in higher frequencies and wouldn’t allow it even though the option was there for lower frequencies. Also, curtain frequencies would not allow curtain steps. I tried but wouldn’t work. Reason why I sold mine. If Icom would have allowed all modes and steps in all frequencies available, would have kept mine.From the post, the design appears to be a compromise between the R30 and the ID-52. I would point out that the ID-52, if matched with a good antenna, is an excellent VHF-UHF scanner, though it lacks P25 and DMR. Is there any hope that someone might "develop" alternative firmware allowing reception of modes that Icom's business model doesn't include?
A lot of questions can be answered by reading linked page on hamlife.jp. Note that some browsers automatically translate to English, with varying levels of success, so the Japanese text isn't really a problem.
From the text of the article: "The reception frequency range is 76 to 500MHz, and it supports AM/FM/WFM..." So, no HF, no 800 MHz, no NXDN, no D-STAR, no DMR, no P25.
Yeah, I overstepped by suggesting that the IC-R15 might be a replacement for the IC-R30. Given that you can't buy an IC-R30 new and used ones are commanding high prices, anything might be considered a replacement.