Genesys GDR- COM Series, Installation Manual, Page: 52 / 62

GDR-XXXX NAV/COMM INSTALLATION MANUAL
64-000109 Page 52 of 62
30. ARINC Label 034, VOR/ILS Frequency
Label 034 is used for tuning the VOR or ILS frequency.
Table 14: NAV Frequency Selection Format for 109.3 MHz, ARINC Label 034
P
a
ri
ty
(
o
d
d
)
S
ig
n
/S
ta
tus
Ma
tri
x
10 MHz
(0)
1 MHz
(9)
0.1 MHz
(3)
0.02 MHz
(0)
See
Table
Below
Res
(SDI)
VHF NAV FREQ.
Octal
LSB MSB
1 2 4 1 2 4 1 2
Bit # 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 6 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
109.3 MHz 0 0 0 0 0 0 1 0 0 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0
4 3 0
Note: 1) The frequency transmitted has an implied 100 MHz added.
2) Bit 14 is used is systems where the DME is tuned by the VOR/ILS and acts as a hold
function. When set to a ‘1’ the DME is held at the last frequency tuned with a ‘0’
value.
Table 15: Definition of Bits 11 to 13 for Label 034
Bit Number Description
Bit 11 Marker Sensitivity ‘1’ denotes high, “0” denotes low
Bit 12 VOR Rotor Filtering ‘1‘ denotes employed. “0” denotes no filter
Bit 13 Reserved
Bit 14 DME Hold ‘1’ denotes the DME is held at the last channel
Table 16: Sign Status Matrix definition
31 30 Status
0 0 Verified
0 1 No Computed Data
1 0 Functional Test
1 1 Not Defined
Table 17: ARINC SDI bit definition
SDI Bits
10 9
J100
Pin 15
J100
Pin 44
Radio
Number
0 0 Gnd Gnd All Call
0 1 Gnd Open NAV 1
1 0 Open Gnd NAV 2
1 1 Open Open NAV 3