Wetin Mek CRPA GNSS Antena dɛn Impɔtant fɔ Pɔt ɛn Ship—ɛn Aw fɔ Pik di Rayt Sɔlv?

Wan bot we de kam nia wan bizi haba de dipen pan mɔ pas wan pozishɔn we dɛn sho na ilɛktronik chɔt. Di brij tim fɔ intaprit trafik, mentɛn kliarens frɔm hazad, fala payɔt instrɔkshɔn ɛn kɔdinɛt wit sho-based savis. Posishun we pɔsin kin abop pan de sɔpɔt dɛn disizhɔn ya, bɔt wan sataylayt-navigayshɔn input we nɔ rili izi kin introduks ɔnsatayniti akɔdin to sɔm kɔnɛkt sistɛm dɛn wan tɛm.

Dis na di rizin we mek GNSS resilience impɔtant to ɔl tu di shiping kɔmni dɛn ɛn di pɔt ɔpreshɔn. Na 25 Mach 2025, di Intanɛshɔnal Maritaym Ɔganayzeshɔn, Intanɛshɔnal Sivil Avieshɔn Ɔganayzeshɔn ɛn Intanɛshɔnal Tɛlikomyunikeshɔn Yuniɔn jɔyn fɔ kɔl fɔ strɔng protɛkshɔn fɔ sataylayt-nevigɛshɔn savis, fɔ mek dɛn ebul fɔ bia wit di sistɛm, fɔ ripɔt bɔt intafɛreshɔn ɛn fɔ kip kɔvɛnshɔnal nevigishɔn infrastukchɔ fɔ sɔpɔt kɔntinjɛns.

CHREDSUN de gi GNSS protɛkshɔn opshɔn fɔ lɔful sivil ɛn kɔmɛshɔnal aplikeshɔn, inklud supreshɔn-fɔs anti-jamin ɛntena ɛn mɔdel dɛn we de kɔba anti-jamin wit anti-spoofing funkshɔnaliti. Wit arenjmɛnt kɔnfigyushɔn dɛn we de frɔm 4 ɛlimɛnt to dual 16-ɛlimɛnt sistem, kɔstɔma dɛn kin ebul fɔ evalyu protɛkshɔn lɛvɛl dɛn agens dɛn pletfɔm kɔnstrakshɔn ɛn ɔpreshɔnal rikwaymɛnt dɛn.

Di gol nɔto fɔ tek ples fɔ simanship ɔ indipɛndɛnt nevigishɔn. Na fɔ mek di sataylayt-risɛpshɔn stej fɔ wan big maritaym sefty strateji strɔng.

1. Wetin Mek GNSS Disrɔpshɔn Impɔtant Bifo di Risiva

Ship ɛn pɔt dɛn de yuz sataylayt-drayv pozishɔn, velositi ɛn tɛm fɔ bɔku ɔpreshɔnal fɛnshɔn dɛn. Dipen pan di instɔleshɔn, GNSS data kin sɔpɔt ilɛktronik chɛt, AIS pozishɔn ripɔt, reda fɛnshɔn dɛn we de yuz GNSS input, rout monitarin, trafik manejmɛnt ɛn timing-dipɛndent ikwipmɛnt.imo+1

Dis kin mek wan impɔtant dipɛnsin: i kin tan lɛk se sɔm skrin dɛn gri bikɔs dɛn de gɛt di sem ɔndalayn infɔmeshɔn.

If da kɔmɔn input de bi tin we pɔsin nɔ go abop pan, agrimɛnt bitwin displei dɛn nɔto fɔ se na indipɛndɛnt kɔnfɔmeshɔn. Wan brij tim kin nid fɔ chɛk:

• Wan pozishɔn we dɛn nɔ bin de ɛkspɛkt na di ilɛktronik chɔt.

• Disagrimɛnt bitwin di reda ɔbshɔbishɔn ɛn di chɛt pozishɔn.

• Chenj dɛn we nɔ pɔsibul fɔ biliv pan di kɔs ɔ spid oba grɔn.

• AIS infɔmeshɔn we nɔ de mach di trafik we dɛn dɔn obshɔb.

• Alam dɛn we gɛt fɔ du wit di nevigishɔn input dɛn we dɔn lɔs ɔ we dɔn pwɛl.

UK maritaym gayd spɛshal wan de wɔn fɔ abop ɔl pan wan pozishɔn-fiksin sɔs ɛn i rikɔmɛnd fɔ chɛk ɔltɛm yuz indipɛndɛnt we. I ɛksplen bak se ilɛktronik chɔt sistem nɔ go ebul fɔ mek di bot in tru tru pozishɔn jɔs bikɔs i tan lɛk se di say we dɛn de gi am pɔsibul.

Fɔ wan shiping ɔpreshɔn, GNSS protɛkshɔn so nɔto jɔs fɔ kip wan risiva ɔnlayn. I de bɔt fɔ ridyus di risk we di infɔmeshɔn we nɔ de ɔ we de mek pipul dɛn nɔ no di tru, de prɔpagɛt to di opareshɔnal disizhɔn dɛn.

2. Jamming ɛn Spoofing Nid Difrɛn Kwɛshɔn dɛn

Wan yusful prokyumɛnt prɔses de separet tu trɛt pas fɔ trit ɔl di GNSS intafɛreshɔn as wan prɔblɛm.

Di intanashɔnal jɔyn stetmɛnt sho se ɔl tu di jam ɛn spɔf na bad bad intafɛreshɔn we de afɛkt sataylayt-navigayshɔn savis. ITU de diskraib spoofing as GNSS-layk transmishɔn we kin mek wan bot ɔ ayrakt risiva kɔlkul mistek pozishɔn ɛn gi lay lay gayd.

Dis difrɛns de chenj di ɛntena sɛlɛkshɔn.

Wan ɛntena we de pe atɛnshɔn pan sɔpreshɔn nɔ fɔ advatayz ɔtomɛtik wan as anti-spoofing sistem. We lay lay nevigishɔn infɔmeshɔn na sɔntin we pɔsin kin biliv pan ɔpreshɔnal kɔnsyans, di wan dɛn we de bay fɔ aks fɔ kɔnfigyushɔn we dɛn spɛsifa klia wan ɛn tɛst fɔ anti-spoofing.

Ikual, ​​anti-spoofing protɛkshɔn nɔ fɔ prɛzɛnt as garanti agens ɛvri pɔsibul lay lay-sayn sɛnɛriɔ. Pɔfɔmɛnshɔn de stil dipen pan di hadwae we dɛn dɔn pik, prɔsesin, risiva kɔnfigyushɔn ɛn tɛst kɔndishɔn dɛn.

3. Wetin wan CRPA Sistem de Ad to GNSS Risepshɔn

CRPA tinap fɔ Kɔntrol Risepshɔn Patɛn Antena. Wan kɔmplit CRPA protɛkshɔn sistem de kam togɛda wan mɔlti-ɛlimɛnt ɛntena arenjmɛnt wit di rayt signal-prɔsɛsin ilɛktroniks.

Bifo yu jɔs amplify ɔltin we de rich na wan ɛntena, arenjmɛnt prɔsesin de ajɔst aw signal dɛn frɔm di difrɛn ɛlimɛnt dɛn de kam togɛda. Dis de mek dɛn ebul fɔ stɔp di dairekshɔn intafɛreshɔn: di sistɛm kin ridyus di sɛnsitiviti to signal dɛn we dɛn nɔ want we i de tray fɔ kip yusabl sataylayt risepshɔn.

CHREDSUN in kɔmbayn-protɛkshɔn prodak dɔkyumentri de diskrayb arenjmɛnt-bɛs prɔsesin na di risiva frɔnt ɛnd fɔ mitigate sɔpreshɔn intafɛreshɔn ɛn spɔf. Selekt sistem dɛn de gi bak prɔses RF autput fɔ wan ɛksternal risiva ɛn nevigishɔn-data autput tru wan intagreted risiva kɔnfigyushɔn.

Fɔ intagreta dɛn, dis de mek tu pɔsibul rod dɛn:

• Ritain wan kompitibul eksternal GNSS risiva ɛn evalyu wan prɔses RF kɔnɛkshɔn.

• Evaluate wan intagreted risiva konfigyushɔn we de saplae nevigishɔn data tru wan dijital intafeys.

Nɔn pan dɛn tu rod ya nɔ kin wok ɔtomɛtik wan wit ɛvri brij, motoka kɔntrol ɔ sɔv sistɛm. Frikyuɛnsi kɔvarej, RF lɛvɛl, ilɛktrik intafɛs, protɔkɔl ɛn dawɔnstrim data rikwaymɛnt dɛn fɔ chɛk.

4. Wetin Mek Pɔt dɛn Nid fɔ Si Broda Pas fɔ Shipbɔd Nevigishɔn Nɔn

Di pɔt ɛnvayrɔmɛnt inklud mɔ pas kɔmɛshɔnal bot dɛn. I kin inklud bak sɔv kraft, sɔfayz bot dɛn we nɔ gɛt pɔsin, ɔtonamɛnt yad motoka dɛn, mobayl map ikwipmɛnt ɛn sho-based monitarin sistem.

Dɛn pletfɔm dɛn ya gɛt difrɛn tin dɛn we de ambɔg dɛn. Wan kɔmpakt rɔbɔt motoka kin gɛt smɔl ples ɛn pawa. Wan sɔvɛ vessel kin prɔyoritɛt di risiva kɔmpatibiliti ɛn mɛzhɔmɛnt kwaliti. Wan big instɔleshɔn kin akɔmod wan ay-kapasiti arenjmɛnt bɔt i nid ɔda envayrɔmɛnt ɛn intafɛs validɛshɔn.

Di maritaym sɛktɔ in rilayns pan PNT de go bifo to sho-based ɔpreshɔn ɛn bak to ship dɛn. Di UK Maritaym ɛn Kostgaad Ajɛns in Ɔktoba 2026 gayd de tɔk klia wan bɔt di wan dɛn we gɛt ship, di haba ɔtoriti dɛn, di wan dɛn we de wok wit di pɔt, di wan dɛn we de gi VTS ɛn ɔda pipul dɛn we gɛt fɔ du wit di si we de abop pan PNT savis.

Fɔ dis rizin, wan pɔt fɔ bigin bay we i de map in dipɛnsin dɛn:

1. Us ikwipmɛnt de gɛt GNSS pozishɔn ɔ tɛm?

2. Us sistɛm dɛn de sheb wan kɔmɔn risiva?

3. Wetin go apin if di infɔmeshɔn nɔ de igen?

4. Wetin go apin if dɛn kɔntinyu fɔ tek di rayt infɔmeshɔn?

5. Us indipɛndɛnt sɔs dɛn stil de?

Dis rivyu de ɛp fɔ no usay GNSS risepshɔn protɛkshɔn go gi di big prɛktikal bɛnifit.

5. Tu CHREDSUN Prodak Rot: Anti-Jamming ɔ Kɔmbayn Protɛkshɔn

CHREDSUN in prodak rɛnj de sɔpɔt tu difrɛn sɛlɛkshɔn rod dɛn.

Sכprεshכn-fכkus GNSS anti-jamming antena dεm

Dɛn prɔdak ya na fɔ aplikeshɔn usay di praymar rikwaymɛnt na fɔ ridyus spɛsifikɛd RF intafɛreshɔn we de afɛkt sataylayt risɛpshɔn.

Dɛn kin tink bɔt dɛn fɔ sivil pletfɔm usay intafɛreshɔn-rilayt lɔs pan GNSS avaylabl na di men tin. Selekshɔn fɔ bi bays pan di rilevɛns frikyuɛnsi band dɛn, tɛst intafɛreshɔn tayp dɛn, sɔs jɔyometri ɛn pletfɔm intagreshɔn rikwaymɛnt dɛn—nɔto di prɔdak nem nɔmɔ.

GNSS anti-jamming ɛn anti-spoofing ɛntena dɛn

Kɔmbayn-protɛkshɔn mɔdel dɛn ad ɛksplisit spɛsifikɛd spɔf-mitigashɔn kapabiliti dɛn.

Fɔ ɛgzampul, di AJ-SX370D spɛsifikɛshɔn de diskrayb protɛkshɔn agens sɔpreshɔn intafɛreshɔn, riplay spɔf, jɛnɛretiv spɔf ɛn miks intafɛreshɔn kɔndishɔn. I inklud bak fɔ ripɔt bɔt intafɛreshɔn pawa, intafɛreshɔn-sɔs kɔnt ɛn spɔf ditekshɔn infɔmeshɔn.

Dɛn fɛnshɔn ya kin gi yusful input fɔ monitar ɛn aplikeshɔn-lɛvel rispɔns. Bɔt di ɛntena in stetɔs autput nɔ kin bi brij alam, ɔtonamɛnt sef-stɔp kɔmand ɔ nevigishɔn-intɛgriti disizhɔn. Dɛn ansa dɛn de fɔ disayn ɛn validet insay di ɔs sistɛm.

6. Pik Bitwin Fo Elemɛnt ɛn Dual 16-Ɛlimɛnt Ɛri

Array saiz na impɔtant sɛlɛkshɔn factor, bɔt i nɔto kɔmplit pefɔmɛns spɛsifikɛshɔn. Di kɔstɔma dɛn nɔ fɔ tink se mɔ ɛlimɛnt dɛn ɔtomɛtik wan de gi anti-spoofing, sɛntimita-lɛvɛl pozishɔn ɔ kɔmpitibliti wit wan patikyula vessel sistem.

Di tebul we de kam biɛn ya de gi wan statin pɔynt fɔ tɔk bɔt CHREDSUN in prodak rɛnj, pas fɔ wan yunivasal diploymɛnt prɛskrishɔn.

Tu difrɛn disizhɔn dɛn de: di arenjmɛnt akitɛkɛt ɛn di protɛkshɔn fɛnshɔn. Wan kɔstɔma kin nid wan kɔmpakt kɔmbayn anti-jamming/anti-spoofing ɛntena, ɔ wan big supreshɔn-fɔs prodak. Di kɔrɛkt chukchuk de fala di risk asɛsmɛnt.

'Dual 16-element' sɛf nɔ fɔ intaprit as permishɔn fɔ dɛbul di nɔmba we dɛn dɔn pablish fɔ intafɛreshɔn sɔs. Yuz di intafɛreshɔn kapasiti we dɛn tɔk bɔt fɔ di ɛksaktɔl prɔdak.

7. Wan Prodak Ɛgzampul: Wetin AJ-SX370D De Gi—ɛn Wetin Stil Nid fɔ Verify

AJ-SX370D de sho wan opshɔn we gɛt ay kapasiti CHREDSUN. I nɔto yunivasal rɛkɛmɔndeshɔn fɔ ɔl di bot ɔ pɔt instɔleshɔn dɛn.

Dɛn tek dɛn valyu ya frɔm di prɔdak spɛsifikɛshɔn.

di spoofing-source figa nid imכtant kwalifayshכn: spoofing signal dεm wit J/S ≥30 dB dεn de trit dεm lεk suprεshכn-tayp intafεreshכn εn nid כda anti-suprεshכn chεnal dεm. Di jammer ɛn spoofing kɔnt dɛn we dɛn dɔn pablish nɔ fɔ so, dɛn nɔ fɔ prɛzɛnt am as ɔnkɔndishɔnal '15 plus et' simultaneɔs garanti.

Fɔ di maritaym prɔjek dɛn, di wan dɛn we de bay fɔ kɔnfɔm sɛpret aprɔval dɛn we dɛn fɔ yuz ɛn di tin dɛn we dɛn nid fɔ instɔl. IP retinj, ɔpreshɔn-tɛmpracha rɛnj ɔ industrial prodak spɛsifikɛshɔn nɔ fɔ diskrayb as pruf fɔ marin tayp aprɔval, sɔl-mist kwalifayeshɔn ɔ fit fɔ ɛvri ship instɔleshɔn.

8. Akkurayt, Intafɛreshɔn Tolɛreshɔn ɛn Navigayshɔn Intɛgriti Difrɛn

Wan saksesful evalueshɔn de difrɛns tri kwɛstyɔn dɛn:

• Aw di pozishɔn kɔrɛkt ɔnda di kɔndishɔn dɛn we dɛn dɔn tɔk bɔt?

• Aw bɔku spɛsifikɛd intafɛreshɔn di sistɛm kin telɛ?

• Aw di kɔmplit instɔleshɔn de sho wan sɔlv we nɔ pɔsibul fɔ abop pan?

Fɔ ɛgzampul, AJ-SX370D in bilt-in risiva spɛsifikɛshɔn de gi ɔrizɔntal akkuracy fɔ ≤7 m ɛn vertikal akkuracy fɔ ≤9 m na 95%, wit PDOP ≤4. Dɛn figa dɛn de nɔto klem fɔ sɛntimita-lɛvel RTK pefɔmɛns.

Semweso, di intafɛreshɔn-to-saynal rɛsɛshɔn dɛn we dɛn dɔn pablish nɔ de intachɛnj wit mɛzhɔ ɛntena nul dip ɔ wan garanti protɛkshɔn rayus.

Di kɔstɔma dɛn we nid sɔv-grɛd pozishɔn, prɛsis ɔtonamɛnt muvmɛnt ɔ spɛshal tɛm fɔ evalyu di ɛntena, risiva, kɔrɛkshɔn savis, prɔsesin dilɛys ɛn monitarin akitɛkɛt togɛda. Protɛkshɔn fɔ di GNSS RF input ɛn ajɔstmɛnt fɔ di aplikeshɔn in akkuracy rikwaymɛnt na rilayt, bɔt sɛpret, injinɛri wok dɛn.

9. Instɔlɛshɔn ɛn Akseptans Tɛst fɔ Riflɛkt di Rial Plɛtfɔm

Fɔ wan bot ɔ pɔt prɔjek, akseptɛns fɔ pe atɛnshɔn pan di sistɛm we dɛn dɔn instɔl pas fɔ pe atɛnshɔn pan wan spɛsifikɛshɔn shit nɔmɔ.

Wan prɛktikal evalueshɔn plan fɔ gɛt:

AJ-SX370D in instɔleshɔn instrɔkshɔn dɛn rikɔmɛnd fɔ mek di briz flɔ dɔŋ di mɛtal bays ɛn wan say we nɔ gɛt ɛnitin fɔ ambɔg am. We dɛn instɔl am ɔnda kɔva, di tin we de ɔp am fɔ gi at le 92% L-band transmishɔn.

Dɛn tin ya we dɛn nid fɔ du fɔ mek dɛn gri wit di rial bot strɔkchɔ ɛn di arenjmɛnt fɔ di ikwipmɛnt. Wan kwalifay intagreta fɔ asɛs bak di RF ɛnvayrɔmɛnt we de rawnd, kebul routin, pawa protɛkshɔn ɛn ɛni aplikebul vessel ɔ pɔt rikwaymɛnt.

10. CRPA De Sɔpɔt Maritaym Risiliɛns; I Nɔ De Riples Indipɛndɛnt Navigayshɔn

Risepshɔn protɛkshɔn valyu, bɔt i nɔ fɔ bi nyu rizin fɔ trɔst GNSS witout kwɛstyɔn.

Wan maritaym resiliens strateji fɔ kam togɛda:

1. Risepshɔn protɛkshɔn fɔ ridyus di ifɛkt we spɛsifikɛd intafɛreshɔn gɛt.

2. Monitoring fɔ no di infɔmeshɔn we dɔn pwɛl ɔ we dɛn nɔ biliv.

3. Indipɛndɛnt nevigishɔn rɛfrɛns ɛn prɛktis kɔntinjɛnshɔn prosidyuz.

UK maritaym gayd de rikɔmɛnd fɔ chɛk indipɛndɛnt pozishɔn ɔltɛm ɛn ɛksplen aw reda tɛknik, inklud paralel indeks, kin sɔpɔt nevigishɔn we GNSS nɔ de. I de wɔn bak se dɛn nɔ fɔ abop pan AIS nɔmɔ fɔ avɔyd fɔ kɔlishin.www

CHREDSUN antenna dɛn de insay di risepshɔn-protɛkshɔn layt. Dipen pan di mɔdel, dɛn kin saplae infɔmeshɔn bɔt monitarin bak. Dɛn nɔ de tek ples fɔ reda, vijual lukout, pasej planin, kru jɔjmɛnt ɔ apruv nevigishɔn ikwipmɛnt.

11. Fɔ Pik wan CHREDSUN Sɔlwɛshɔn fɔ Yu Maritaym Projɛkt

Di statin point we yusful pas ɔl na fɔ ɛksplen di aplikeshɔn klia wan—nɔto jɔs fɔ aks fɔ di big big arenjmɛnt.

We yu de kɔntakt CHREDSUN, gi:

• Plɛtfɔm tayp: bot, sɔvɛ kraft, USV, pɔt motoka ɔ fiks instɔleshɔn.

• Rikwayd GNSS signal ɛn risiva mɔdel.

• If di kɔnsyusɔn na sɔpreshɔn intafɛreshɔn, spɔf ɔ ɔl tu.

• Akkurayt, ɔpdet-rɛyt ɛn tɛm we dɛn nid.

• Pawa we de, peylɔd ɛn instɔleshɔn spɛs.

• Di kɔndishɔn dɛn we dɛn bin want fɔ mek di envayrɔmɛnt ɛn di tin dɛn we dɛn nid fɔ gri fɔ.

• Prɛferɛd RF ɔ dijital nevigishɔn-data intafɛs.

• Monitoring, fallback ɛn akseptɛns-tɛst ɛkspɛkteshɔn.

CHREDSUN in rεnj frɔm 4-ɛlimɛnt to dual 16-ɛlimɛnt kɔnfigyushɔn de alaw kɔstɔma dɛn fɔ tink bɔt difrɛn lɛvul dɛn fɔ GNSS protɛkshɔn. Di sɛlɛkshɔn fɔ mach di aktual wok, nɔ fɔ abop pan wan asɔmpshɔn se wan mɔdel de sav ɛvri maritaym aplikeshɔn.

Fɔ pik di prɔdak, fɔ tɔk bɔt tɛnki ɔ fɔ aks bɔt intagreshɔn, kɔntak di CHREDSUN tim bay imel ɔ WhatsApp. Di abit na fɔ no wan aprɔpriet sivil GNSS protɛkshɔn sɔlvishɔn—ɛn chɛk aw i go wok insay yu big nevigishɔn sistɛm.