Sangean ATS-909X w (R1) - Manual (Page 22)

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MEMORY TUNING
It is possible to preset up to 406 stations using the memory
capability of the ATS-909X. Each 9 presets compromise  page.
The SW band is capable of storing 39 pages or 35 preset stations
(39 Pages x 9 Presets/Page): 27 Presets on FM (3 Pages x 9
Presets), 8 Presets on MW (2 Pages x 9 Presets) and 9 presets
on LW.
To Manually Set Memory on FM/MW/LW Bands:
Tune to station you would like to program into memory. Press
Memo button, MEMO will flash in the LCD display, select page
desired by pressing PAGE button. Display will flash and next
available position on display will flash if an available position is
available. If memory is full no suggested position will flash and LCD
will display MEMO FULL when any button is depressed. Press
the Enter Selection button to assign new frequency to available
flashing open position. If selected button is held for more than 2
seconds, even with MEMO FULL flashing, newly selected station
will replace existing station.