Research Concepts RC1000 - Manual (Page 39)

byte 20 : Sat_azimuth_position display status -
binary data - the value of the internal
variable, az$position$display$status$code,
which indicates the present status of the
azimuth position display field on the LCD
on the front of the unit. In REMOTE or
MANUAL mode, the azimuth field will usually
display the antenna's present azimuth
position. When the polarization is jogged,
this field will contain the PXX where XX is
the polarization position.
7 6 5 4 3 2 1 0
0 0 1 0 $ 0 0 _ _
0 0 az_position displayed
0 1 pol_position displayed
1 0 nothing displayed in
the azimuth position
field.
byte 21 : error status - binary data
7 6 5 4 3 2 1 0
ant$errors: 0 0 1 0 $ 0 _ _ _
j a b
a z a
m t
when the bit is set, it means ...
Jam ... the antenna is jammed/no sensor
feedback.
AZ .... the azimuth count is corrupted.
Bat ... a low battery indication has been
received.
byte 22 : ETX
byte 23 : 'chksum' the checksum
If the command cannot be executed, the RC1000A response will be
byte 0 : NAK
byte 1 : 'AA' where AA is the RC1000A address
byte 2 : '31h' the query command code
byte 3 : ETX
byte 4 : 'chksum' the checksum