Buoys Flashcards

1
Q

Spitting a BT when you already have 8 buoys tuned

A

will auto replace one

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2
Q

how often do non gps buoys correct

A

every 6 minutes

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3
Q

What RF signal strength is considered noisy

A

4 and up

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4
Q

BT name

A

AN/SSQ-36B BT

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5
Q

Difar name

A

AN/SSQ-53 G/F

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6
Q

Dicass name

A

AN/SSQ-62 E/F

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7
Q

DIFAR CFS commands

A
channel
on/off
life
hydrophone (difar, shallow omni, cal omni)
automatic gain control
gps enable/disable
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8
Q

DICASS CFS commands

A
rf channel
on/off
ping freq
depth
gps enable/disable
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9
Q

CFS and auto ping

A

especially if auto pinging in FM, buoy will do it, but won’t send info back that it actually did it

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10
Q

Can you pre CFS DICASS

A

yes

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11
Q

what does ANM do

A

produces a noise estimate for each of the 10 freq bands used in cal omni

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12
Q

what displays do we get from lofar/difar omni

A

gram and ALI

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13
Q

what screens do we get from difar directional

A

gram, ali, BVF

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14
Q

steer card screens

A

ali, gram, bvf

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15
Q

orth card screens

A

gram, ali, bvf

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16
Q

screens from synth omni

A

gram, ali, bvf on a synthetic omni beam

17
Q

demon info in other ntrp

A
18
Q

benefit of steer card

A

theoretical 4.77 dB gain and -10 dB loss (3.4 gain at 45s)

19
Q

benefit of orthcard

A

gained in all cardinal directions

20
Q

bin width and band width

A

try to match them

21
Q

how many bins per band

A

256

22
Q

what does a vernier do

A

shows either 1/4 or 1/8 of an octave

23
Q

full band range

A

octaves 1-8

24
Q

half band range

A

octaves 0-7

25
Q

quarter band range

A

octaves 0-6

26
Q

eighth band range

A

octaves 0-5

27
Q

benefit of CR over a VR

A

independent of octave

c4-c9 provide constant bin width across range

28
Q

LTI in other NTRP

A
29
Q

gram rates

A

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