Grecom PSR-310 Owner's Manual page 18

Operation Keys
FUNC - activates alternate key functions. FUNC key operation is very intui-
tive - typically it "amplifies" the keypress that follows it.
LIGHT - activates backlight, FUNC LIGHT locks keypad.
MAN - Places scanner in Manual Mode for monitoring single objects.
SCAN - Places scanner in Scan Mode for scanning enabled objects, FUNC
SCAN launches Spectrum Sweeper.
TUNE - Allows direct tuning of any valid frequency, FUNC TUNE loads the
current or most recently scanned frequency into TUNE
SRCH - Dedicated Search mode for service and frequency searches
ATT - Toggles Attenuator on and off, FUNC ATT toggles Global Attenuator
mode
PRI - Toggles the Priority setting for selected or active object, FUNC PRI
toggles Priority Mode on or off for the scanner
FAV - Activates Favorites Scan Mode, FUNC FAV adds the current object to
the Favorites Scan List
WX - Activates Weather scan, FUNC WX activates Skywarn mode
PGM - Places scanner in Program Mode for editing radio-wide options, add-
ing new objects or editing existing objects
L/OUT - Toggles Temporary Lockout on active or selected object, FUNC L/
OUT applies permanent lockout (can be changed in the GLOB menu)
ENT - Enter key
PSE - Pauses scan or search operation on active object
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