B-mode gaps (or duplicate numbers) in sounding sequence: (The soundings numbered below exist, gaps are in between), 734199 to 734201 734213 to 734215 734219 to 734221 734221 to 734223 734411 to 734413 734414 to 734416 734478 to 734480 735244 to 735246 735246 to 735248 735248 to 735250 735250 to 735252 735252 to 735254 735254 to 735256 735256 to 735258 735258 to 735260 735260 to 735262 735262 to 735264 735264 to 735266 735266 to 735268 735268 to 735270 735270 to 735272 735272 to 735274 735274 to 735276 735276 to 735278 735278 to 735280 735280 to 735282 735282 to 735284 735284 to 735286 735286 to 735288 735288 to 735290 735290 to 735292 735292 to 735294 735294 to 735296 735296 to 735298 735298 to 735300 735300 to 735302 735302 to 735304 735868 to 735870 735998 to 736000 736002 to 736004 736817 to 736819 736819 to 736821 736821 to 736823 736823 to 736825 736825 to 736827 736827 to 736829 736829 to 736831 736831 to 736833 736833 to 736835 736835 to 736837 736895 to 736897 736945 to 736947