Symmetricom SyncServer S100 User Manual page 97

Page e 84 84 .......................................................................... Pag
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Configuring Window Mode Configuring Window Mode
After setti After
1. 1. On
2. 2. On
3. 3. Set
Other Considerations Other Considerations
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When n GPS Whe
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(180 degr (180 degrees ees). ).
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st stren rengt gth h is is vi visi sibl ble e on on th the e
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Verif ify y th that at the Ver the
NTP - A NTP - Associations ssociations
th the e Syn SyncSe cServ rver er ca can n rel rely y on on if if GPS
setting ng up up the the antenna: antenna:
On th the e p pag age, e, se set t th the e
TIM TIMING ING - Hold - Holdover over
ab able le va valu lue e for for ab abso solu lute te ti timi ming ng erro
th than an or or eq equal ual to to 4 4 mi mill llis isec econ onds ds. .
On th the e STATUS - GPS STATUS - GPS pa page, ge, if if th the e GPS
tu tude de), ), th the e us user er c c an an sk skip ip to to st step ep 3. 3. O O th ther erwi wise se: :
Det Determ ermin ine e th the e ap appro
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This is ca can n be be do done ne us usin ing g a a ha hand ndhe held ld G G PS Th
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the Sync the SyncServe Server r Produc Product t Inf Informa
O On n th the e
REFERENCES - GPS REFERENCES - GPS
n n
tude. tude.
Set th the e to to
Mode Mode Position Positi on Hold
racy y of of th the e us user- er-ent entere
GPS st stat atus us is is lo lock cked ed: :
P P o o s s i i t t i i o o n n A A c c c c u u r r a a c c y y
< < 5 5 0 0 m m ( ( < < 1 1 6 6 4 4 f f e e e e t t ) )
< < 1 1 k k m m ( ( < < 0 0 . . 6 6 2 2 m m i i l l e e ) )
< < 1 1 0 0 k k m m ( ( < < 6 6 . . 2 2 m m i i l l e e s s ) )
window dow mo mode de op opera erati tion on, , if if th the e GPS
Input ut Ref Refere erenc nces es are are av avai aila labl ble, e, the
Also o se see e
Oscillators Oscillators
the co corne rners rs off offer er be bette tter r vi visi sibi bili lity ty (27
with h th the e hi high gh-st -stab abil ilit ity y Rub Rubid idiu ium m os osci cill llato
while le GPS GPS is is un unav avai aila labl ble. e.
won't 't fa fall ll or or ge get t k k no nock cked ed ou out t of of po pos s it itio ion. n.
test t dif differe ferent nt windo window w loc
connec nectors tors, , and and use use an an in-l
page.) page.)
STATUS - GPS STATUS - GPS
coatin tings, gs, wind window ow bli blinds
GPS si sign gnal als. s.
pa page ge is is c c on onfi figu gure red d wi with th va vali lid d NTP
GPS is is un unav avai aila labl ble. e.
Ti Time me Erro Error r Li Limi
error r (to (to UTC). UTC). Sym Symme
GPS rec recei eive ver r has has a a va vali lid d po posi siti tion on (la (lati titud
proxi xima mate te la lati titud tude, e, lo long ngit itud ude, e, and
PS de devi vice ce, , an an on onli line ne re refe fere renc nce e su such ch as as
ormatio tion n CD-ROM. CD-ROM.
page page, , ent enter er the the app
an and d cl clic ick k th the e button. button.
Hold APPLY APPLY
ered d po posi siti tion on af affec fects ts th the e ti timi ming ng ac accu curac
T T i i m m i i n n g g A A c c c c u u r r a a c c y y
< < 0 0 . . 0 0 0 0 5 5 m m s s
< < 0 0 . . 1 1 m m s s
< < 1 1 . . 0 0 m m s s
GPS rec recei eive ver r is is not
the GPS GPS rec recei eive ver r en ente ters rs hol
(s (see ee " " Timin Timing g Holdover Holdover
7-0152 1520-0 0-03 3 Rev Rev. . A A
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(270 0 de degre grees es) ) tha than n fl flat at wal
ator r op opti tion on ca can n pro
locati ations ons, , sho shorten rten the the ante antenna
in-line ine amp amplif lifier ier opti option. on. (Sign (Signal al
nds, , ove overhead rhead obs obstruc tructio tions,
NTP se serv rver ers s or or pe peer ers s th that at
(mi (milli llisec second onds) s) to to the the hig
mit t
metri trico com m rec recom omme mends nds a a va valu lue e gre
tude, e, lo longi
and al alti titu tude de of of th the e GPS GPS ant
and Lo Longi ngitu tude de in infor forma mati tion on pro
approxi roximat mate e lat latitu itude, de, lon longit gitude,
racy y of of th the e GPS GPS ref
not lo lock cked ed to to an any y sa satel telli lites tes an and d no no
holdov dover er mo mode de and
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