Buoys Flashcards
Spitting a BT when you already have 8 buoys tuned
will auto replace one
how often do non gps buoys correct
every 6 minutes
What RF signal strength is considered noisy
4 and up
BT name
AN/SSQ-36B BT
Difar name
AN/SSQ-53 G/F
Dicass name
AN/SSQ-62 E/F
DIFAR CFS commands
channel on/off life hydrophone (difar, shallow omni, cal omni) automatic gain control gps enable/disable
DICASS CFS commands
rf channel on/off ping freq depth gps enable/disable
CFS and auto ping
especially if auto pinging in FM, buoy will do it, but won’t send info back that it actually did it
Can you pre CFS DICASS
yes
what does ANM do
produces a noise estimate for each of the 10 freq bands used in cal omni
what displays do we get from lofar/difar omni
gram and ALI
what screens do we get from difar directional
gram, ali, BVF
steer card screens
ali, gram, bvf
orth card screens
gram, ali, bvf
screens from synth omni
gram, ali, bvf on a synthetic omni beam
demon info in other ntrp
benefit of steer card
theoretical 4.77 dB gain and -10 dB loss (3.4 gain at 45s)
benefit of orthcard
gained in all cardinal directions
bin width and band width
try to match them
how many bins per band
256
what does a vernier do
shows either 1/4 or 1/8 of an octave
full band range
octaves 1-8
half band range
octaves 0-7
quarter band range
octaves 0-6
eighth band range
octaves 0-5
benefit of CR over a VR
independent of octave
c4-c9 provide constant bin width across range
LTI in other NTRP
gram rates
1.25, 2.5, 5, 10 sec
only represents how much info is in each line of a gram
use longer for stable freqs
shorter for dynamic freqs
