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Glossary
Glossary
Command Line
Comm
T T he he co comm
examp
exa
The Syn
The
so sole le po port rt lo loca cate ted d on on th the e fr fron ont t pa pane nel, l, an and d al also so by by op open enin ing g a a TEL
work rk po port rt (T (TEL
wo
Interface
Interface
GPS
GPS
Introduction
Introduction
The Gl Glob obal al Pos
The
co cons nstel tella lati tion on of of at at le leas ast t 24 24 sa sate tell llit ites es tha
have e se seve veral ral at atom
hav
Obse serva
Ob
ti time
me and
Usi
Using ng a a GPS
prec
precis ise e sy synch
GPS Time and Date
GPS Time and Date
From m Wik
Fro
th the e At Atom
co corre
C C o o m m m m a a n n d d L L i i n n e e
G G P P S S
H H a a r r d d w w a a r r e e C C l l o o c c k k
L L e e a a p p I I n n d d i i c c a a t t o o r r
N N T T P P A A s s s s o o c c i i a a t t i i o o n n s s
N N T T P P D D a a e e m m o o n n
N N T T P P P P a a c c k k e e t t
P P I I N N G G
S S t t r r a a t t u u m m
S S y y n n c c h h r r o o n n i i z z i i n n g g N N T T P P a a s s s s o o c c i i a a t t i i o o n n
U U T T C C
O O p p e e r r a a t t i i o o n n a a l l C C o o n n f f i i g g u u r r a a t t i i o o n n
and Line
mman and d li line ne is is a a te text xt-ba
-base sed d us user er in inte terfa
mple le, , on on Mi Micro
croso soft ft Win
Windo dows,
SyncSe
cServ rver er has
has a a ve very ry li limi mite ted d co comm
ELNET
NET mu
mus s t t be be en enab able led d on on th the e SE
(o (on n pa page ge 57 57) ) fo for r mo
more re de deta tail il. .
Posit itio ioni ning ng Sys
System
omic ic cl cloc ocks ks th that at are
rvato tory ry (USNO
(USNO). ). Cod
Coded ed si signa
and pos
posit itio ion n of of th the e sa sate tell llit ite. e. All All GPS
GPS rec
recei eive ver r op opti timi mize zed d for
nchroni
ronizat
zation
ion with
with the
Wikip ipedi
edia: a: "Wh
"Whil ile e mo
most st cl cloc ocks ks are
omic ic cl cloc ocks ks on on th the e s s at atel elli lite tes s ar are e s s et et to to GP
rrect cted ed to to ma
matc tch h th the e ro rota tati tion on of of th the e Ea
rface ce av avai aila labl ble e on on mo
ws, ope
open n th the e
menu,
menu, selec
Start
Start
mmand
and li line ne in inter
terfac
SERVI
RVICES
CES - - . . Co
tem (G (GPS)
PS) is is a a worl
worldwi
dwide de rad
that t co cont ntin inuo uous usly ly orb
are pre
preci cise sely ly sy sync nchro
hroni nize zed d to to UTC
gnals ls are
are bro
broadc
adcas ast t by by ea each ch of of the
GPS rec
recei eive vers rs us use e an an an ante tenna
for ti time
me (ra
(rathe
ther r th than an pos
the sat
satell ellite ites' s' ato
atomic
mic cl clock
ocks. s.
are sy sync nchro
hroni nize zed d to to Coo
GPS S ti time
me. . Th
Eart rth, h, s s o o it it do does es no not t c c on onta tain in le leap ap se seco cond nds s or or ot othe her r co cor- r-
Command nd Lin
Comma
most st ope
operati
rating ng sy syste
select t
, , an and d en ente ter r
Run
Run
cmd
cmd
face, e, a a vail
vailab able le fr from
om th the e RS-2
RS-232 32 co con- n-
TELNET
NET se sess ssio ion n to to th the e LAN
Cons nsul ult t th the e
Command Line
Command Line
radio io-na
-navi viga gati tion on sy syst stem
em fo forme
orbit it th the e ear
earth.
th. Mo
Most st GPS
GPS sa sate tell llit ites es
UTC fro
from m the
the U.S.
U.S. Nav
the sa satel telli lite tes s wit
with h the
nna to to rec
recei eive ve the
these se si sign gnal als. s.
posit itio ion),
n), it it is is po poss ssib ible le to to get
get ex extre
Coordi rdina nate ted d Uni
Unive vers rsal al Tim
The e di diff ffer eren ence ce is is th that at G G PS
Line e
1 1 2 2 7 7
1 1 2 2 7 7
1 1 2 2 8 8
1 1 2 2 8 8
1 1 2 2 9 9
1 1 2 2 9 9
1 1 2 2 9 9
1 1 3 3 3 3
1 1 3 3 3 3
1 1 3 3 4 4
1 1 3 3 4 4
1 1 3 3 4 4
stems
ms. . For
For
. .
LAN 1 1 ne net- t-
rmed d fro
from m a a
Naval al
the ex exac act t
treme
mely ly
Time e (UTC)
(UTC), ,
PS ti time
me is is no not t
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