Uniden BCD996XT User Manual page 795

<COMMAND REV>
Get Rev Index
Controller → Radio
REV,[INDEX][\r]
Radio → Controller
REV,[INDEX][\r]
[INDEX]
Location Alert System.
Returns reverse(backward) index of the index in the memory chain.
Returns -1 if no more index exists.
This command is only acceptable in Programming Mode.
<COMMAND FWD>
Get Fwd Index
Controller → Radio
FWD,[INDEX][\r]
Radio → Controller
FWD,[INDEX][\r]
[INDEX]
Returns forward index of the index in the memory chain.
Returns -1 if no more index exists.
This command is only acceptable in Programming Mode.
<COMMAND RMB>
Get Remains of Memory Block
Controller → Radio
RMB[\r]
Radio → Controller
RMB,#####[\r]
Returns the number of idle(free) memory block.
: ##### (not zero-padding)
This command is only acceptable in Programming Mode.
: Index of system, site, group, channel, TGID or
: Index of system, site, group, channel, TGID or
Location Alert System.
237