600840-000032 Stratus ESG Installation Instructions
Rev. 1.5
Last Revised: September 22, 2016
Page 35 of 47
VHF communications
Set VHF communications radios to multiple frequencies and monitor the effects of Stratus ESG
while transmitting and receiving. At a minimum, the frequencies listed below should be tested, in
addition to locally available frequencies. Each transmission should occur for 35 seconds for
each frequency.
Verify that the NIC value on the GPS receive diagnostic screen is 7 or greater.
Test each frequency in 1 MHz increments between 118 -136.000 MHz.
Test the following frequencies for VHF radios with 25kHz spacing:
121.150
121.175
121.200
121.225
121.250
131.200
131.225
131.250
131.275
131.300
131.325
131.350
Test the following frequencies for VHF radios with 8.33kHz spacing:
121.185
121.190
130.285
131.290
HF communications
If the aircraft is equipped with HF communications radios, set to multiple frequencies and
monitor effects of Stratus ESG while transmitting and receiving. Record the frequencies tested:
SATCOM communications
If aircraft is equipped with a SATCOM system, operate the SATCOM equipment while
monitoring the GPS CN0 diagnostic screen. Verify that the CN0 values on the GPS receive
diagnostic screen do not drop by 2 dB or more.
Navigation
(i)
VOR / ILS
Verify the operation of each VHF Nav receiver in both VOR and ILS modes (including glide
slope) while monitoring the effects of Stratus ESG. Record the frequencies tested.
108.000 MHZ
108.100 MHZ
(ii) DME
Verify the operation of each DME while monitoring the effects of Stratus ESG. The same
frequencies used for VOR and ILS testing may be used for this test.
