Nsɛm Titiriw
- Bɔ Hɔ Biara: Satellite fon no de nkɔmmɔ kɔfa nsoromma a ɛwɔ soro so nkɔ, mmom sɛ wɔde cell tower, enti ɛma wobetumi anya nkɔmmɔ wɔ mmepɔw, po, sare ne mmere a asɛe aba a ɛhe conventional network no ntumi mmɛyɛ adwuma t-mobile.com. Sɛ wopɛ sɛ wunya signal pa a, ɛsɛ sɛ wopɛ baabi a ɛda hɔ ma w’ani betumi ahu soro – kwae a ɛdɔɔso, nsuomfuo, anaa dan tenten betumi asiw signal no kwant-mobile.com.
- LEO ne GEO Network: Sat fon no yɛ adwuma wɔ nnɔbaeɛ mmienu so. Low-Earth orbit (LEO) nsoromma (sɛ Iridium, Globalstar) de nsoromma bebree a wɔnam ntɛm so a ɛwɔ soro a ɛnyɛ kɛse, ma wobetumi anya nkɔmmɔ wɔ wiase nyinaa (ka poles ho) na latency nso yɛ ketewa spire.com investor.iridium.com. Geostationary (GEO) nsoromma (sɛ Inmarsat, Thuraya) tena soro bɛyɛ 22,000 mile wɔ equator so, na biara kata wiase mu mmiɛnsa mu baako. GEO network no de beam kɛse kata region no so, nanso ntumi nkɔ polar beaeɛ a ɛyɛ den na ɛde bɛyɛ 0.5 second voice delay efisɛ ɛwɔ akyirikyiri gearjunkie.comt-mobile.com.
- Ɛkwan a Wɔfa So De Nkɔmmɔ No: Sɛ wokɔfrɛ obi wɔ satellite fon so a, wo fon no de signal no soro kɔ nsoromma no nkyɛn, na ɛno nso de kɔ fam wɔ ground gateway. Ɛno akyi no, frɛ no bɛkɔ normal phone network so kɔpɛ nea wokɔfrɛ no (anaa ɛbɛfa nsoromma so kɔ nsoromma, na ɛno akyi kɔ gateway, wɔ system bi mu)t-mobile.com en.wikipedia.org. Iridium de nsoromma 66 na ɛyɛ mesh a ɛda ho – nsoromma no betumi de nkɔmmɔ no fa nsoromma so kɔ nsoromma, enti wobetumi anya nkɔmmɔ wɔ wiase baabiara a nkɔmmɔ nni gap biara investor.iridium.com. Nanso, Globalstar nsoromma yɛ “bent pipe” a ɛsɛ sɛ gateway bɛn fam, enti baabi a gateway nni hɔ no, nkɔmmɔ betumi agyae en.wikipedia.org.
- Dɔɔso ne Dɛw: Satellite fon no yɛ den na wɔde ayɛ adwuma wɔ mmere a ɛyɛ den mu. Bebree no yɛ nsuo/hwiremmɔne ho ban (sɛ: Iridium Extreme no nya IP65 ho nhyehyɛe iridium.com; Thuraya foforo a wɔfrɛ no “Skyphone” no yɛ IP67 satelliteevolution.com) na ɛtumi yɛ adwuma wɔ mmere a ɛyɛ hyew anaa ɛyɛ nwunu mu. Battery nkwa tumi kɔ fi dodoɔ a ɛte sɛ ~4–6 dɔnhwere a wubetumi akasa na da a bebree wɔ charge kɛse so ts2.store gearjunkie.com. Sɛ nhwɛso, Inmarsat IsatPhone 2 de ~8 dɔnhwere kasa/160 dɔnhwere gyina hɔ gearjunkie.com, na fon ketewa te sɛ Globalstar GSP-1700 de ~4 dɔnhwere kasa/36 dɔnhwere gyina hɔ satellitephonestore.com. Satellite fon no mu pii wɔ GPS nsafoa ne biribi a ɛboa ma wubetumi frɛ mmoa – ɛtɔ da a ɛyɛ distress button a wɔde ahyɛ ho (sɛ: Iridium Extreme 9575 SOS de GPS bea kɔ response center) anaa ɛtɔ da a wubetumi de w’ankasa bea kɔma wɔn a wɔbɛboa wo wɔ text so gearjunkie.com.
- Nya ne Sɔw: Sɛ wopɛ sɛ wunya nkitahodie a ɛnyɛ den wɔ baabi a nkɔmɔ nni hɔ a, tua sika kɛse. Fon no bo bɛyɛ $500 kɔsi $1,500 ɛfiri sɛnea ɛyɛ den ne nsusuiɛ ho t-mobile.com. Service plan no fi $30–$50 bosome biara de airtime ketewa, na dɔnhwere baako so frɛ tumi yɛ $1 anaa sika dodow t-mobile.com. Unlimited anaa global plan tumi kɔ sika pii bosome biara. Prepaid SIM wɔ hɔ ma akwantuo tenten a ɛnyɛ dɛ. Wɔ amanehunu mu, adwumayɛfoɔ pii ma SOS nkratoɔ (sɛ: Garmin SOS) anaa aban boa ma wode tumi di dwuma. Efisɛ satellite fon de country code titiriw (sɛ: +8816 ma Iridium), sɛ wopɛ sɛ wofrɛ bi a, yɛ sika so ma ofrɛfo; enti nnipa pii de text anaa email na wɔde bɔ nkɔmmɔ ma wɔn a wɔbɛfrɛ wɔn.
- Ntoto ho ahemman a ɛwɔ ho: Iridium ne ɛda so nkitahodie koro a ɛwɔ 100% wiase nyinaa so ahyehyɛde, fi pole kɔ pole investor.iridium.com. Inmarsat ne Thuraya (geostationary nkitahodie) kata nnipa a wɔte bebrebeɛ so, nanso wonkata polar mpɔtam (ɛkɔ soro ~±75° latitude) gearjunkie.com satelliteevolution.com. Globalstar kata bɛyɛ ~80% wiase so (titiriw North America, Europe, Asia/Africa akɛse ne po atifi), nanso ɛwɔ mpɔtam a ɛda po mfinimfini ne polar mpɔtam so efisɛ ɛda regional ground stations so en.wikipedia.org en.wikipedia.org. Bɔ mmɔden hwɛ provider no coverage map: sɛ nhwɛso, Thuraya nsafoa mmienu no som bɛyɛ aman 160 wɔ Europe, Africa, Middle East, Asia ne Australia, nanso ɛnkata Americas satelliteevolution.com .
- Mfasoɔ: Satellite fon yɛ nkwa gyefo wɔ amanehunu mu – wɔda so yɛ adwuma bere a hurricanes anaa asasewosow bubu asase so nkitahodie. “Satellite fon ayɛ adwuma titiriw anaa ɛyɛ backup nkitahodie bere a amanehunu ba na cellular infrastructure ne radio towers atɔ fam,” Iridium CEO Matt Desch ka investor.iridium.com. Wɔde ma nnipa a wɔdi kan, search-and-rescue akuw, po sofo, hyɛnfo, ne adwumayɛfo a wɔwɔ akyirikyiri de bɔ nkɔmmɔ ne boa nkɔso. Nkɔmmɔ no yɛ encrypted na ɛyɛ den sɛ obi bɛte, enti ɛno nti asraafo ne aban dwumadi de satcom di dwuma wɔ nsɛm a ɛho hia so t-mobile.com. (Iridium ne Thuraya de wɔn ankasa encryption di dwuma wɔ voice traffic so, enti ɛyɛ den ma obiara a ɔwɔ nimdeɛ kɛse mpo sɛ ɔbɛte crateclub.com.)
- Nkɔsoɔ a ɛwɔ ho: Satɛlaet fɔn deɛ, ɛnyɛ sɛ ɛyɛ fɔn a yɛde di dwuma da biara. Wopɛ sɛ wode di dwuma a, ɛsɛ sɛ wowɔ kwan a ɛda hɔ pefee kɔ satɛlaet no ho – sɛ wokɔ ofie mu, anaa dua ase a ɛdɔɔso, anaa sɛ osu kɛse retoa so a, ɛbɛtumi ama frɛ no atwa mut-mobile.com. GEO satɛlaet fɔn hia sɛ wopointi antena no kɔ ɔsoro baabi pɛ (baabi a satɛlaet no da), na wogyina hɔ pintinn na ɛma signal no yɛ den; LEO fɔn deɛ, ɛhwehwɛ antena a ɛkɔ akyirikyiri, nanso ɛbɛtumi agye kakra sɛ wokɔ so nam (“kɔ na kasa”). GEO satɛlaet so, ɛda so ara, kasakyerɛ a ɛkyɛ kakra wɔ so (~0.5 second kɔ baako so) a ɛbɛtumi ama kasa no ayɛ sɛ ɛkyɛ gearjunkie.com. LEO satɛlaet so deɛ, ɛkyɛ no yɛ ketewa (Iridium satɛlaet a ɛda ~780 km so deɛ, ɛkyɛ no yɛ ~50–100 ms kɔ baako so) enti kasa no te sɛ nea ɛyɛ pɛpɛɛpɛ spire.com. Bandwidth no so yɛ ketewa – satɛlaet fɔn a wode bɛfa nsa no, ɛtumi yɛ voice, SMS, ne data a ɛyɛ nyaa (2.4 kbps anaa kɔ 9.6 kbps so). Nnyae sɛ wobɛtumi ahwɛ video; nea ɛbɛyɛ a, wobɛtumi agye email a ɛyɛ dɛdɛdɛ anaa nsɛm a ɛfa nsakrae ho. Afei nso, mmara ne mmara nsɛm betumi ayɛ ɔhaw: aman kakra kɔtɔ anaa de mmara gu satɛlaet fɔn so, hia sɛ wopɛ krataa ansa na wode bɛfa wɔn man mu efisɛ wɔsuro sɛ ɛbɛboa amanneɛbɔ (sɛ India a, wɔmma obiara a ɔnnya satɛlaet fɔn kwan – nnipa bi atɔ nsa wɔ hɔ efisɛ wɔde Thuraya/Iridium fɔn kɔɔ hɔ a wonnya ho kwan apollosat.com). Sɛ worekɔ aman foforo a, hwehwɛ mmara a ɛwɔ hɔ ansa na wode satɛlaet fɔn kɔ.
Satɛlaet Kasakyerɛ Ho Dwumadi
Satɛlaet te sɛ fɔn tower wɔ ɔsoro: Satɛlaet fɔn (anaa “satphone”) yɛ fɔn a ɛnto mmirika wɔ asase so tower so. Mmom, w’ankasa fɔn no radio signal bɛkɔ akɔpem mpempem kilomita wɔ ɔsoro. Sɛnea wɔbɔ system no ho a, signal no betumi: (a) atwa gateway-to-gateway wɔ satɛlaet bebree ntam ansa na ɛbɛba asase so station bi, anaa (b) akɔ satɛlaet baako nko ara a ɛbɛma signal no atɔ asase so station a ɛbɛn hɔ. Baako pɛ a ɛda ho ne sɛ, w’afre anaa w’asoma nsɛm no bɛkɔ asase so fɔn network mu na ɛbɛtumi akɔ fɔn biara so. Biribiara no, ɛyɛ kakra pɛ a ɛfa ho, ɛyɛ sɛ millisecondst-mobile.com. Sɛ wopɛ sɛ wofre satɛlaet fɔn a, ɛnyɛ dɛɛdɛɛdɛ sen sɛ wofre amanone fɔn – ɛbɛyɛ sɛ wobɛde “+” anaa “00” di kan, na de country code (satɛlaet network no wɔ wɔn ankasa country code te sɛ +881 ma Iridium anaa +870 ma Inmarsat) ne number no.
Nsoromma ne wɔn ho nantew: Satphone no akyi atetesɛm no yɛ adwuma kɛse wɔ aerospace adwumayɛ mu. LEO nsoromma ahyehyɛdeɛ te sɛ Iridium, Globalstar, ne AST SpaceMobile a ɛreba operate nsoromma bebree a wɔwɔ low-Earth orbit a ɛwɔ anammɔn kakra so. Efisɛ LEO nsoromma biara tumi kɔ akyirikyiri kakra, ɛno nti, ɛsɛ sɛ nsoromma bebree na wɔde kata asase so. Sɛ nhwɛso, Iridium nsoromma 66 a wɔde di dwuma no tu wɔ 6 polar orbital planes mu, na wɔde frɛ no kɔ so sɛ nsoromma bi reba na foforo reba w’ani so investor.iridium.com. LEO mfaso ne sɛ ɛkata wiase nyinaa so ka polar mmeae ho, ɛhia tumi kakra, na latency nso yɛ ketewa paa – ɛkwan no yɛ ~20–50× bɛn sen GEO nsoromma, enti ɛnkɔ so na ɛyɛ ntɛm na nsam ketewa nso betumi akɔ orbit spire.com spire.com. Nanso, nsoromma biara betumi ada w’ani so kakra pɛ. Nsɛntitiriw te sɛ Iridium de, wɔde nsoromma no tu wɔ nsoromma a wɔn ho bɔ na wɔde inter-satellite laser links: w’frɛ no betumi akɔ nsoromma bi so akɔ nsoromma foforo so kosi sɛ ɛdu nsoromma a ɛwɔ fam a ɛbɛn ground gateway anaa kɔ nsoromma a ɛwɔ w’frɛfo no so pɛpɛɛpɛ. Saa cross-link nhyehyɛe yi nti na Iridium betumi de nsoromma kakra nko ara akata wiase nyinaa so – frɛ a ɛfiri Antarctica mfinimfini betumi akɔ space-to-space na abɛba, sɛ yɛka sɛ, Arizona, na akɔ public network so en.wikipedia.org.
GEO nsesafoɔ yɛ biribi foforɔ. Geostationary satellites a Inmarsat, Thuraya, ne afoforo wɔ no, gyina soro tenten so 22,236 miles wɔ ɛkwator ho, na ɛdi asase so twi ho, enti ɛda hɔ te sɛ nea ɛgyina baabi koro pɛ wɔ ɔsoro. GEO satellite biara de ne ho to asase so baabi kɛse (sɛ nhwɛsoɔ, Inmarsat GX satellites mmiɛnsa biara kata asase no mu bɛyɛ 1/3). Satellite baako pɛ betumi aboa region kɛse biara, na ɛma nsesafoɔ no yɛ mmerɛw – satellites ne ground stations kakra pɛ na ɛhia sɛ wɔwɔ hɔ de nya wiase nyinaa so coverage. Nsesa no ho nsakrae: GEO satphones no ɛsɛ sɛ wɔtumi soma nsɛm kɔ soro bɛyɛ 35,000 km, enti nsɛm no yɛ mmerɛw na ɛkyɛ kakra (bɛyɛ 0.25 seconds kɔ soro plus 0.25 seconds ba fam) t-mobile.com. Voice no teɛ dodo, nanso ɛsɛ sɛ ɔdeɛ a ɔreka no twɛn kakra ansa na obi a ɔreka no atie. Na ɛfiri sɛ GEO satellites no gyina ɛkwator so, wɔn angle no yɛ fam paa wɔ atifi ne anafo fam – sɛ wokɔ bɛyɛ 75–80° atifi anaa anafo, ɛbɛyɛ den sɛ wubenya beam no koraa gearjunkie.com. Sɛ nhwɛsoɔ, Inmarsat ka sɛ IsatPhone service no de coverage bɛkɔ bɛyɛ 82° latitude pɛ gearjunkie.com. Eyi nti na polar expeditions de Iridium phones kɔ – ɛno nko ara na ɛbɛyɛ adwuma wɔ Arctic/Antarctic mmepɔw so.
Gateways ne Ground Infrastructure: Orbit no ho nhia, satphone frɛ biara bɛkɔfa ground station a ɛbɔ satellite network no ne asase so telecom networks ho. Gateways no yɛ antenna tenten a wɔde si wiase nyinaa so (bebree wɔ baabi a nnipa nni hɔ na ɔsoro da hɔ na fiber link yɛ papa). Sɛ wokɔfa Globalstar phone no, w’asɛm no bɛkɔfa Globalstar gateways bɛyɛ 24 a ɛwɔ continents nsia so biako en.wikipedia.org; sɛ satellite a ɛkata wo so no nni gateway biara a ɛbɛn hɔ a, worenhu service (na eyi ama coverage gaps wɔ po ne polar regions atwam). Thuraya ne Inmarsat wɔ gateway teleports kakra pɛ (sɛ nhwɛsoɔ, Thuraya main station wɔ UAE kata satellite footprint no nyinaa so). Iridium cross-linked LEO network yɛ biribi foforɔ – Iridium satellites betumi de traffic kɔfa wɔn ho wɔ soro na wɔde bɛto fam wɔ gateways biara so (wɔ Alaska, Canada, Arizona, ne baabi foforɔ), enti Iridium frɛfo betumi atena baabiara na wanya connection wɔ gateway a ɛwɔ akyirikyiri en.wikipedia.org. Saa nsesa yi ma Iridium yɛ den (na ɛno nti na Iridium phones yɛ adwuma wɔ poles ne akyirikyiri war zones fi da koro no ara). Nanso, ɛbo yɛ den paa. Nsesafoɔ foforɔ deɛ, wogyaa cross-links no ho na wɔyɛ satellites no mmerɛw na ɛnyɛ boɔ tenten, de gu coverage flexibility bi.
Sɛ frɛ bi du gateway no so a, wɔde no bɛma public switched telephone network (PSTN) anaa internet no so. Efi hɔ no, ɛyɛ sɛ frɛ foforo biara. Sɛ wopɛ sɛ wofrɛ landline a, gateway no bɛkɔ local telecom exchanges ho na ɛbɛma number no atwa. Sɛ satphone mmienu frɛ wɔn ho wɔ same network no so a, frɛ no betumi akɔ so pɛpɛɛpɛ wɔ satellite system no mu (network bi betumi de satphone mmienu no akɔ so pɛpɛɛpɛ wɔ satellite no so a, ɛnka terrestrial lines ho, titiriw sɛ gateway anaa satellite no ara na ɛhwɛ so).
Adwuma ne Frɛ No Teɛ: Satellite phone foforo de digital voice codecs a wɔayɛ ama low bandwidth (ɛboro so 2.4 kbps voice codecs) na ɛyɛ adwuma. Nni anidaso sɛ wobɛte HD voice – asɛm no te sɛ early 2000s cell phone frɛ anaa VoIP a ɛyɛ ketewa. Nnipa a wɔasɔ saa fon no ahorow aka sɛ: “Sɛnea satellite phone biara te no, voice call no teɛ fi papa kɔsi kakra a ɛyɛ den, nanso saa na ɛte,” obi a ɔsɔɔ fon ahorow wɔ Denali gearjunkie.com so kaa. Sɛ wowɔ signal a ɛda hɔ (biribi nsi ho anaa w’ankɔ nkyɛn a ɛma ɛyera), asɛm no bɛteɛ na ɛrennya static. Latency na ɛyɛ asɛm kɛse wɔ GEO networks so: saa half-second ntɛm no betumi ama nnipa aka asɛm so wɔ wɔn ho so sɛ wɔnyɛ no ho adwene. Nnipa a wɔde satphone di dwuma dada no sua sɛ wɔbɛka “over” anaa wɔbɛkyerɛ sɛ wɔn asɛm awie, te sɛ walkie-talkie, na ɛnyɛ basabasa. Wɔ LEO networks (Iridium/Globalstar) so deɛ, latency no sua na ɛnsɛ sɛ woyɛ saa.
Data ntɛm wɔ handheld satphones so da so yɛ hare paa. Sɛ nhwɛso, Iridium 9555 ne 9575 betumi de data yɛ 2.4 kbps (te sɛ 1990s dial-up ntɛm) gye sɛ wode compression anaa akyɛde bi ka ho. Inmarsat fon no so betumi de 2.4 kbps “Mini-M” data anaa 20 kbps compressed email mode – ɛbɛtumi ama text email anaa GRIB weather file, nanso ɛnyɛ web browsing. Satellite hotspots foforo (te sɛ Iridium GO! anaa Inmarsat IsatHub) de data kakra kɛse (Iridium GO! betumi akɔ ~15 kbps ama internet a ɛyɛ hare anaa social media text, na Inmarsat BGAN terminal kɛse no de broadband a ɛboro 100s of kbps, nanso ɛnyɛ fon a wode bɛkɔ baabiara). Kyerɛ sɛ, sat phones yɛ deɛ wɔde yɛ voice ne SMS. Biribiara a ɛsɛ data kɛse yɛ den ma handhelds – nanso ebetumi asesa daakye wɔ satellite ne network foforo so (sɛnea yɛbɛka wɔ news section ase).
Nsɛm a ɛfa Line-of-Sight ho: Efisɛ satphones de wɔn nkɔmmɔ kɔto nsoromma a ɛwɔ soro so, ɛho hia sɛ wopɛ sɛ wuhu soro pɛpɛɛpɛ. Satɛlaet netwɛk pa biara rentumi mmoa wo sɛ wowɔ dan mu, asase ase, anaa wopuee mu. L-band satɛlaet nsɛm (ɛbɛn 1.5 GHz frequency) betumi atwa nsɛm bi so (sɛnea ɛte sɛ ahahan anaa ntoma tent a ɛyɛ hare) nanso ɛbɛto metal, konkriti, bepɔw, ne nneɛma foforo so. Wɔn a wɔwɔ kurow mu no, ɛsɛ sɛ wohu baabi a ɛda hɔ anaa dan atifi; skyscraper tenten betumi asiw GEO satɛlaet kwan so sɛ wowɔ dan no akyirikyiri. Nsuo a ɛtɔ kɛse anaa aprannaa a ɛyɛ den betumi ama nsɛm no ayɛ mmerɛw (nsuo a ɛtɔ kɛse yɛ asɛm kɛse wɔ frequencies a ɛyɛ tenten te sɛ Ka-band; sat phones a wɔde da no yɛ L-band a ɛyɛ den wɔ nsakrae mu, nanso aprannaa a ɛyɛ den paa anaa nsakrae a ɛwɔ mu betumi ama nsɛm no ayɛ dinn). Asɛm no kɛse ne sɛ: bere biara a ɛbɛyɛ yiye, fa sat phone no abɔnten a wuhu soro 360° pɛpɛɛpɛ. Sɛ wowɔ bɔtɔw anaa kwae mu a, hwehwɛ baabi a ɛda hɔ kɛse na yɛ pɛ sɛ nsɛm no betumi atwa mu bere a nsoromma no kɔ so anaa biribi si hɔ a ɛma nsɛm no yɛ dinnt-mobile.com. GEO phones pii de boafo a ɛkyerɛ kwan ba ho: sɛnea ɛte no, fon no bɛyɛ dede bere a wode kyerɛ satɛlaet no, na ɛboa wo ma wuhu baabi a ɛfata.
Tumi ne Antenna: Satphones de antenna a ɛda abɔnten – ɛyɛ ketewa nanso ɛyɛ duru, na ɛsɛ sɛ wopuee no gyina pintinn bere a wopɛ sɛ wode di dwuma. Eyi de, wonntumi nsi ho; sɛ wogya antenna no mu a, ɛrenkɔ. Fɔn no de 0.5 kɔsi 1.5 watts RF tumi pue, ɛyɛ kɛse sen sɛnea fɔn a yɛde di dwuma da biara yɛ, na ɛboa ma ɛkɔ satɛlaet no nkyɛn. Eyi na ɛma batri no yɛ ntɛm sɛ ɛsa. Sɛnea ɛkae no, bere a wubetumi akasa no yɛ kakra pɛ. Eye sɛ wode batri no hyɛ fɔn no mu ma ɛyɛ den ansa na wode bɛyɛ adwuma a ɛho hia, na fa batri foforo ka ho bere a wokɔ akwanhyia so. Satphones foforo de USB-C charging anaa wɔwɔ docking kit a wode betumi de solar panel hyɛ batri no mu wɔ baabi a nsuom.
2025 Mu Satɛlaet Fɔn a Ɛda So Yɛ Ɛkan Ho Nhyehyɛe 📱🛰️
Sat phones a ɛwɔ nnɛ no fi “brick” a ɛyɛ den kɔsi fɔn a ɛte sɛ smartphone. Ɛha na yɛde sat phones titiriw a ɛwɔ Iridium, Inmarsat, Globalstar, ne Thuraya – na yɛkyerɛ wɔn nsusui ne nsɛntitiriw:
| Fɔn & Ntetee | Nkitahodie Fã | Battery nkwa (Nkɔmmɔ/gyina hɔ) | Dɛnkɛseɛ | Nwoma Foforɔ | Nkɔmmɔ/ndata | Bɔ ho hwɛ sika |
|---|---|---|---|---|---|---|
| Iridium Extreme 9575 (Iridium) | Wiase nyinaa (100% wiase nyinaa ka poles ho) investor.iridium.com. LEO nsoromma a ɛma nkɔsoɔ nni hye. | ~4 dɔnhwere nkɔmmɔ, 30 dɔnhwere gyina hɔ gearjunkie.com globalsatellite.gi. | Mil-Spec 810F, IP65 mfuturo/nsuo-gyina ho iridium.com (osuogya ho ban; nsuo mu deɛ ɛnyɛ). Dɛnkɛseɛ a ɛbɔ ho ban ma adwuma den. | SOS button (wobɛtumi de ahyɛ nsɛmmɔne ho, bɛsoma GPS beaeɛ). GPS nkyerɛkyerɛ ne beaeɛ hwehwɛ wom. Tumi soma SMS ne krataa ketewa. | Nkɔmmɔ/SMS, ndata ketewa (~2.4 kbps dial-up) ma krataa/email/abɔdeɛ ho nsɛm. | ~$1,200 (kɛseɛ). Ntetee sika ~$1/min anaa $50+/bosome plan t-mobile.com t-mobile.com. |
| Inmarsat IsatPhone 2 (Inmarsat) | Wiase nyinaa (gyaa polar fã a ɛyɛ den – nkitahodie ~±82°) gearjunkie.com. De 3 GEO nsoromma (I-4) di dwuma. | ~8 dɔnhwere nkɔmmɔ, 160 dɔnhwere gyina hɔ (yɛ fɛ) gearjunkie.com. | IP65 (nsuo gu so & mfuturo ho ban). Dɛnkɛseɛ, tumi yɛ adwuma -20°C kɔ +55°C. | GPS wom (bɛtumi de beaeɛ soma SMS so). Nsɛmmɔne mmoa button (bɛfrɛ nɔma a wɔahyɛ – ɛsɛ sɛ wopɛ mmoa som). Nkɔmmɔ dɛ fɛre a wopɛ (nkɔmmɔ ntwa mu efisɛ GEO nsoromma no gyina hɔ) gearjunkie.com. | Nkɔmmɔ/SMS. Ndata yɛ mmoroso (2.4 kbps); nsesa ndata ntetee. | ~$700–$900. Ntetee plan ~$1/min anaa bosome bundle ts2.store t-mobile.com. |
| Globalstar GSP-1700 (Globalstar) | Ɛhe na ɛda ho (bɛyɛ 80% wiase nyinaa; den wɔ N. America, Europe, ne Asia mu; nsom wɔ Central/South Africa, po mfinimfini, ne polar nsase so en.wikipedia.org en.wikipedia.org. 48 LEO satellites + 24 ground gateways. | Bɛyɛ dɔnhwere 4 kasa, dɔnhwere 36 gyina hɔ twɛnsatellitephonestore.com. | Nni IP rating a wɔahyɛ ho (ɛyɛ deɛ ɔmanfo de di dwuma; ɛhia sɛ wode bɔ ho ban na ɛnyɛ nsuo ho). Ɛyɛ deɛ ɛyɛ mmerɛw (7 oz/198 g). | Nketewa flip-phone ho nhyehyɛe. Kasa teɛteɛ yɛ papa wɔ beae a ɛda ho (de CDMA technology di dwuma, “landline-te sɛ” kasadwini). Nni GPS wɔ handset no mu – ntumi mfa coordinates nkɔ. Nni SOS button wɔ saa model yi so. | Kasa/SMS. Data kɔ 9.6 kbps (sɛ wode compression software di dwuma). Som no betumi ayɛ den sɛ gateway nni hɔ (nkɔmmɔ betumi agyae sɛ satellite no fi ground station no ho kɔ). en.wikipedia.org en.wikipedia.org. | Bɛyɛ $500 (wɔtɔ so fam bere a wotɔ airtime). Som nhyehyɛe no yɛ dɛ sen Iridium/Inmarsat – sɛ $40–$100/bosome de kasa – nanso ɛfata beae a ɛda ho nko ara. |
| Thuraya X5-Touch (Thuraya) | Ɛhe na ɛda ho (Thuraya GEO satellites kata bɛyɛ 2/3 wiase so: Europe, Africa, Middle East, Asia, Australia) satelliteevolution.com. Nni Americas anaa polar nsase so. | Bɛyɛ dɔnhwere 11 kasa, dɔnhwere 100 gyina hɔ twɛn (sɛ wode dual mode di dwuma betumi atɔ so). | IP67 den Android smartphone – nsu nntumi nka, mfuturu nntumi nka (betumi asu nsu mu dɔnhwere 0.5). Gorilla Glass touch-screen. Ɛyɛ deɛ ɛyɛ den -10°C kɔ +55°C. | Android OS ne 5.2″ touchscreen – betumi de apps di dwuma offline. Dual SIM, dual mode: betumi ayɛ 4G/3G smartphone wɔ GSM network so + betumi asesa kɔ satellite mode sɛ coverage nni hɔ thuraya.com satellitephonestore.com. GPS/Glonass de bɛboa w’akwanhyia. Nni one-touch SOS (wode apps betumi de emergency message). | Kasa/SMS wɔ satellite mode (de Thuraya SAT network frɛ). Data: kɔ 60 kbps so, 15 kbps so wɔ satellite mode – bɛtumi ama…r bɛsik email anaa WhatsApp nkrataa (Thuraya de GmPRS som bo) ts2.store. Fɔn a ɔwɔ smartphone nsɛm nyinaa so wɔ cellular/Wi-Fi so. | ~$1,300 (sat smartphone titiriw). Hia Thuraya SIM (anaa partner roaming SIM) de sat di dwuma + SIM foforo de cellular. Satellite airtime bɛyɛ ~$1 per minute. |
| Thuraya XT-LITE (Thuraya) | Apɔwmu (Thuraya coverage no ara pɛ: ~160 man) ts2.store. | ~6 dɔnhwere kasa, 80 dɔnhwere gyina hɔ ts2.store. | IP54 (nsuo ntwene ho, nsuo ne mfuturu ho banbɔ kakra) ts2.store. Fɔn a ɛyɛ den, ɛyɛ dɛ, na ɛyɛ candybar design. | “Bɛyɛ fɛ” bɛsik sat fɔn: biribiara nni ho, nko ara frɛ ne nkrataa ts2.store. GPS betumi ayɛ adwuma: betumi ada coordinates adi na asoma location wɔ SMS so ts2.store. SOS button nni ho (ɛsɛ sɛ ɔde ne ho frɛ emergency number) ts2.store. | Kasa/SMS nko ara. Data anaa email nsɛm nni saa model yi so ts2.store. (Adwene da so wɔ gyinapɛn a ɛyɛ den.) | ~$500 (satphone a ɛyɛ mmerɛw sen biara) ts2.store. Sika mfɛnsere so akatua – Thuraya airtime dodoɔ no bɛyɛ ~$0.80/min anaa akatua a wɔato so wɔ ɛkuo mu ts2.store. |
Table Notes: “Coverage Area” kyerɛ satellite footprint – sɛ wopɛ sɛ wode dwumadi no yɛ adwuma a, ɛsɛ sɛ wunya line-of-sight kɔ saa satellites no ho na ɛbɛtumi aba sɛ mmara a ɛwɔ ha betumi akyere wo. “Durability” kyerɛ nsuo/abɔwɔ ho banbɔ per IP rating ne sɛ ɛwɔ military standard compliance. “Special Features” kyerɛ SOS (ahokeka) dwumadi, kwan kyerɛwtohɔ anaa nsusui a ɛho yɛ fɛ. Akatua no yɛ dwumadi no bo a ɛwɔ so; som dwumadi no bo bɛtɔ so sɛnea provider ne region no te.
Sɛnea ɛda hɔ no, Iridium phone no ma wo tumi kɔ baabiara na ɛyɛ den nanso ne bo yɛ kɛse, ɛwom sɛ Inmarsat IsatPhone 2 yɛ nea ɛwɔ bo pa ma nkɔsoɔ kɛse (gyaa poles no ho) na ne battery nkɔ so tenten gearjunkie.com gearjunkie.com. Globalstar unit no yɛ ketewa na ɛyɛ mmerɛw sɛ wobɛtua ne bo, nanso ɛyɛ adwuma wɔ mmeae bi pɛ na ɛnni nsusui a ɛho yɛ fɛ. Thuraya phones no yɛ papa ma wɔn a wɔwɔ Eastern Hemisphere footprint no – titiriw no, Android-powered X5-Touch no, a ɛbɔ satellite ne GSM bom ma adwuma a ɛyɛ mmerɛw wɔ mmeae a ɛyɛ nkɔsoɔ ne baabi a nkɔntabuo nni hɔ satelliteevolution.com thuraya.com. Saa ara nso na, Thuraya XT-LITE yɛ papa ma wɔn a wɔn sika nni dodo a wɔpɛ basic voice/text backup wɔ baabi a nkɔntabuo nni hɔ ts2.store.
Expert Tip: Sɛ wopɛ sɛ wopaw satellite phone a, hwɛ baabi a wobɛyɛ adwuma no dodo. Sɛ w’adwuma bɛfa baabiara so pɛpɛɛpɛ baabiara – kɔtɔkɔtɔ anaa po mu – Iridium na ɛyɛ papa ma coverage investor.iridium.com. Sɛ wopɛ nkɔntabuo wɔ, sɛ, Africa anaa Asia, Thuraya phone betumi ama wo bo atɔ wo yam. Ma North America nko ara na wopɛ sɛ wokɔ so, Globalstar betumi ama wo voice service a ɛteɛ na latency sua (LEO satellites) ne akatua sua – nanso sɛ wokɔ baabi a ne coverage nni hɔ a, phone no bɛyɛ ade a wode bɔ nwoma. Da biara, bɔ network no ho ban sɛnea geographical hia no te en.wikipedia.org.
Voices from the Field
Sɛ yɛbɛkyerɛ sɛnea wɔde saa dwumadi yi yɛ adwuma wɔ wiase mu no, hwɛ nsɛm ne nsusui bi a industry experts ne wɔn a wɔde adwuma no yɛ adwuma dada aka:
- “Iridium nsa 66 LEO satellites a wɔde ahyehyɛ no, a ɛwɔ baabi a ɛbɛn asase so pɛ, bɛyɛ 1,200 miles so, ma ɛma nkɔmmɔ yɛ hare… na nea yɛpɛ sen biara ne sɛ, yɛnya reception a ɛyɛ den na ɛyɛ dɛ,” ɔbaako a ɔkyerɛw GearJunkie review no kyerɛwee saa, na ɔde Iridium 9555 phone frɛ dɔkotani bi wɔ Alaskan glacier a ɛwɔ akyirikyiri gearjunkie.com gearjunkie.com. Iridium network no tumi ma nkɔmmɔ so wɔ baabi a ɛyɛ den paa nti, ɛyɛ pɛ dodo ma mmepɔw so nnantefo ne wɔn a wɔkɔ polar expeditions.
- “Satellite phone a ɛwɔ nnɛ yi de, wɔde encryption ne ahintasɛm ho ban pa ara bɔ ho ban, enti ɛboa ma asraafo, aban, ne adwuma a ɛho hia ahintasɛm,” T-Mobile Wireless amanneɛbɔ bi ka saa t-mobile.com. Nokware ni, satphone network te sɛ Iridium no, wɔbɔɔ ho ban fi mfiase – ɛyɛ den sɛ obi bɛtumi agye signal no nsa gye sɛ ɔwɔ akwan pa ara so, na ɛnni hia sɛ wode ɔman biako ground infrastructure so (ɛyɛ mfaso kɛse ma journalists anaa NGOs a wɔyɛ adwuma wɔ aman a ɛnni dwoodwoo mu). Nanso, wireless technology biara nni hɔ a ɛyɛ 100% a obi ntumi nte – sika womfoɔ betumi asɔ hwɛ satellite feeds, enti sɛ asɛm no yɛ ahintasɛm kɛse paa a, ɛsɛ sɛ wode encryption foforo ka ho.
- Yahsat CEO Ali Al Hashemi, bere a ɔde Thuraya foforo SatSleeve ne Skyphone reba abɔnten no, ɔkyerɛwee sɛ saa technology yi redu nnipa a wɔdaadaa da no nsa: “Ɛwɔ phone a ɛte sɛ smartphone a yɛde daadaa da, na ɛwɔ satellite connectivity a ɛkɔ baabiara. Ɛsɛ sɛ wode [device yi] pɛ na wubetumi akɔ so anya nkɔmmɔ baabiara, bere biara… ɛbue mmerɛ a ɛwɔ adventure travel anaa baabi a amanehunu aba so” satelliteevolution.com. Eyi kyerɛ trend a ɛreba 2024–2025 mu: hybrid sat/cellular phones a wɔpɛ sɛ wɔde satellite messaging ne nkɔmmɔ brɛ nnipa a wɔdaadaa da. Emergency responders stress preparedness. As former FEMA director James Lee Witt remarked during a satphone testing initiative, “Too often, emergency workers turn on their satellite phone for the first time after disaster strikes to find they do not know how to use it properly… or the phone won’t connect” investor.iridium.com. Regular training and testing of satellite gear is essential. Red Cross officials add that simply knowing how to deploy a satphone (extending antenna, acquiring signal, dialing sequence) can save precious minutes in a crisis investor.iridium.com investor.iridium.com.
- Ɛho hia sɛ wopɛ sɛ wopɛ adeɛ wɔ nsɛnnennen. Sɛ James Lee Witt a na ɔyɛ FEMA so panin ka kyerɛɛ no wɔ satphone ahwɛyiye mu no, “Ɛyɛ mpɛn pii a, nsɛnnennen adwumayɛfo bɛtumi de wɔn satellite phone no bɛto hɔ bere a amaneɛ aba na wɔnhu sɛnea wɔde bɛyɛ adwuma… anaa phone no renkɔ so” investor.iridium.com. Ɛho hia sɛ wotreni na wosɔ satellite akodeɛ no hwɛ mpɛn pii. Red Cross mpanyimfo ka ho sɛ, sɛ wopɛ sɛ wuhu sɛnea wode satphone bɛyɛ adwuma pɛpɛɛpɛ (te sɛ sɛnea wopue antenna no, sɛnea wopɛ signal, ne sɛnea wopɛ so frɛ) bɛtumi agye bere a ɛho hia wɔ amaneɛ mu investor.iridium.com investor.iridium.com.
- Ɛwom sɛ satphone no aboa nnipa pii, nanso ɛda so ara na ɛda nsɛm a ɛnyɛ papa so – sɛnea wɔde bɔɔ ho ban wɔ narco traffickers a wɔde kɔfa aman a mmara nni so, anaa sɛ amradofo nnim ne ho asɛm. Spire Global amanneɛbɔ kyerɛ sɛ satphone no dɔɔso a ɛyɛ den nti “ɛma ɛyɛ mfaso wɔ nsɛm foforɔ ne adwuma pii mu” – kɔfa ho bɔne so, enti aman bi de mmara a ɛyɛ den ato so spire.com spire.com. Ka ho nsɛm kɛse sɛ, sɛ wokɔ aman bi mu a, sɛ wokura satellite phone bɛtumi ama wotumi bu wo fɔ (te sɛ India anaa China, baabi a atamfo ne spayi de satcom ayɛ bɔne dedaw). Mmara ho asɛm nni ho wɔ nkɔsoɔ a ɛyɛ pɛ, nanso ɛyɛ papa sɛ wode krataa a ɛkyerɛ sɛ wopɛ adwuma no na wopɛ sɛ wokyerɛkyerɛ ne ho asɛm (hwɛ FAQ a ɛfa mmara ho ase hɔ).
Nsakrae ne Nsɛm Foforɔ (2024–2025)
Satellite nkɔmmɔbɔ mu nsakrae rekɔ anim ntɛm sen da biara. Eyi ne nsɛmma nhoma, nsɛm foforɔ, ne nsakrae titiriw a ɛrekyerɛ sɛnea satellite phone ne nkɔmmɔbɔ rekɔ so:
- Smartphones bɔ Satellite Ntɔnso: 2022 awieeɛ no, Apple de Emergency SOS via Satellite baeɛ wɔ iPhone 14 so, de Globalstar satellite no boa ma wɔn a wɔwɔ baabi a ɛnni ntɔnso no tumi de nkrataa na frɛ mmoa en.wikipedia.org. Saa ntɔso yi kɔɔ anim wɔ 2024 mu bere a Apple kae sɛ wɔbɛto Globalstar mu sika $1.1 billion na wɔbɛnya 20% Globalstar mu ka de bɛhyɛ wɔn satellite tumi mu den capacitymedia.com. iOS 17 mu no, iPhone tumi soma nkɔmɔtia (“Mewɔ ha, me ho yɛ”) wɔ satellite so na kyɛ location wɔ Find My app mu. Android fon so mfɛfo anka ho: Qualcomm de Snapdragon Satellite (a Iridium ntɔnso na ɛda so) baeɛ wɔ CES 2023 na afei wɔde agu fon te sɛ Motorola Defy 2 ne CAT S75 so, ma Android fon so tumi soma nkrataa ne SOS nkɔmɔ abien so t-mobile.com t-mobile.com. Google Pixel 9 series nso baeɛ de satellite SOS boa ho t-mobile.com. Kyerɛ sɛ, satellite nkrataa reyɛ adeɛ a ɛda fon foforɔ so dada, nanso ɛda so ara yɛ mmoa nkutoo. Ɛnnɛ, direct-to-phone voice frɛ nni ho – saa som no yɛ nkrataa so ɛfiri sɛ bandwidth no sua.
- T-Mobile + SpaceX “Direct-to-Cell” Service: Ɛhe na nkɔsoɔ kɛseɛ baa mu wɔ 2025 mu, bere a T-Mobile ne SpaceX Starlink boaboa wɔn ho ano de bɛyɛɛ satellite-to-phone service. Wɔfrɛ no “T-Satellite”, na ɛhyɛɛ aseɛ wɔ beta mu wɔ 2024 awieeɛ na ɛhyɛɛ aseɛ wɔ dwumadie mu July 23, 2025 reuters.com. Wɔde Starlink satellite foforɔ a wɔde cellular antennas hyɛɛ mu na ɛma T-Satellite tumi ma fɔne biara (ɛnhia sɛ wode fɔne foforɔ) betumi akɔfa satellite so de nsɛm kɔma obi. Bere a wɔhyɛɛ aseɛ no, service no tumi boa ma SMS texting, MMS (mfonini nsɛm), ne voice note ketewa, na wɔpɛ sɛ wɔde voice calling ne data ketewa ka ho ansa na afe 2025 bɛba awiei reuters.com reuters.com. Starlink satellites 657 na ɛwɔ soro de boa dwumadie no, na wɔn botaeɛ ne sɛ wɔpɛ sɛ wɔpam baabi a fɔne ntumi nnya signal wɔ U.S. mu reuters.com. Ɛho hia sɛ, beta no mu, nnipa bɛboro 1.8 million na wɔde wɔn ho too so, a AT&T ne Verizon nnipa pii nso kɔɔ so, efisɛ wɔpɛ sɛ wɔnya coverage baabiara reuters.com. Service no yɛ kwa wɔ T-Mobile plan titiriw so, na ɛyɛ ~$10/bosome sɛ wopɛ sɛ wode ka ho wɔ plans foforɔ so reuters.com. Adwumayɛfoɔ a wɔhwɛ dwumadie no so ka sɛ eyi bɛdan game-changer – ɛyɛ ɔkwan a edi kan a ɛde satellite ne asase so network bɛbɔ bom. Ɛwom sɛ nea ɛtumi yɛ deɛ ɛyɛ ketewa (texting wɔ soro a ɛda hɔ), nanso wɔn plan ne sɛ voice call a ɛkɔfa satellite so bɛba fɔne biara so bɛyɛ 2024–2025. SpaceX ka sɛ Starlink satellite a ɛto so mmienu bɛma “ubiquitous access to texting, calling, and browsing” fi soro ama fɔne biara starlink.com. T-Mobile CEO Mike Sievert aka sɛ “yɛn da so hwɛ sɛ baabiara a wuhu soro no, wubetumi anya connection”, kyerɛ sɛ ɛbɛba bere a satphone ne cellphone bɛyɛ baako.
- Ɔkan Voice Call a wɔyɛe wɔ Satellite so de Stock Phone: Ɛwɔ April 2023 mu no, Texas kuromfuo bi a wɔfrɛ wɔn AST SpaceMobile yɛɛ biribi a ɛda hɔ daakye so sɛ wɔyɛɛ ɔkan direct two-way voice call fi fon a wɔammpɛ ho hwee koraa so kɔɔ satellite so ast-science.com. Wɔde wɔn test satellite a wɔfrɛ no BlueWalker 3 – a ɔde 693-square-foot antenna bɔɔ LEO mu – AST frɛɛ fi Samsung Galaxy S22 a ɛwɔ Texas akyirikyiri kɔɔ fon a ɛte sɛ biara a ɛwɔ Japan so de space so ast-science.com. AT&T ne Vodafone boaboa ho ano maa cellular spectrum no wɔ saa test no mu. Eyi kyerɛe sɛ satellite betumi ayɛ “cell tower a ɛwɔ space” ama voice nso, ɛnyɛ texting nkutoo. Ɛkɔsi September 2023 no, AST yɛɛ space-based 5G call wɔ wɔn nsɔhwɛ mu vodafone.com. Wɔn botae (ne wɔn mpanyimfo te sɛ AT&T, Vodafone, Rakuten) ne sɛ wɔbɛto constellation bi a wɔfrɛ no BlueBird a ɛbɛma broadband ne voice atumi akɔ wiase nyinaa ama fon a ɛte sɛ biara fi 2025–2026. Saa technology yi yɛ satellite phone network a wonni fon titiriw ho – mmom, satellites no yɛ cell sites na fon a ɛte sɛ biara betumi akɔ so bere a ɛnni terrestrial towers ho. Eyi bɛboa Starlink ne afoforo a wɔreyɛ saa adwuma no ho na ɛbɛma satphone ne cell phone ntam ahorow no ayɛ ketewa wɔ mfe a ɛreba no mu.
- Satɛlaet Fɔn Foforɔ Ne Som: Satɛlaet somfoɔ titiriw no nnya nkɔtɔ so. Wɔ September 2024, Thuraya (a ɛyɛ UAE Yahsat akuw bi) de Thuraya SkyPhone bae, ɛyɛ Android 14 fon foforɔ a ɛwɔ satɛlaet ne 5G nteteeɛ abien mu satelliteevolution.com satelliteevolution.com. Ɛwɔ AMOLED kɛseɛ touchscreen, nano-SIM abien (baako de satɛlaet, baako de cellular), antenna a wotumi de to hɔ na wotumi kyekyere so, ne kamera pa – na ɛwɔ IP67 smartphone ho nhyehyɛe mu satelliteevolution.com satelliteevolution.com. Wɔde reboaboa sɛ ɛyɛ satɛlaet fɔn a nipa bɛpɛ sɛ ɔde di dwuma da biara, de satɛlaet frɛ ne nkrataa brɛ Android mu a yɛn ho yɛ fɛ. Thuraya ka sɛ “ɛyɛ ade kɛse a ɛbɛdan biribi…wɔ smartphone a ɛte sɛ nea yɛde di dwuma da biara mu, nanso ɛwɔ satɛlaet nteteeɛ a ɛkɔ baabiara” satelliteevolution.com. Ɛdi kan bɛda hɔ wɔ Thuraya nteteeɛ nkuro mu, na fɔn no abɔ nkɔm de akɔto wɔn a wɔkɔ akyirikyiri, nsu so nnipa, ne aban adwumayɛfoɔ wɔ EMEA a wɔpɛ fɔn baako a ɛbɛyɛ ade nyinaa. Iridium nso de Iridium GO! Exec bae wɔ 2023 – ɛyɛ Wi-Fi hotspot a ɛda so wɔ Iridium GO din so. GO! Exec ma fɔn ne laptop sofoɔ tumi frɛ, soma email, na tumi yɛ browsing ketewa de wɔn ankasa fon so, de Wi-Fi so kɔ Iridium satɛlaet so. Ɛma biribiara tumi yɛ satɛlaet somfoni (nanso Iridium data no yɛ kakra). Saa akyɛde yi kyerɛ sɛ wɔpɛ sɛ wɔma satɛlaet som yɛ mmerɛ ne sɛnea yɛde di dwuma da biara. Foforɔ a ɛda ho so ne Garmin, a wɔde wɔn satɛlaet messenger (inReach) mu bɛyɛ kɛse wɔ 2024, na wɔka sɛ wɔbɛma voice som kakra so wɔ satɛlaet so ma emergency. Garmin handhelds te sɛ inReach Mini 2 nyɛ voice fɔn, nanso wɔyɛ dɛ ma SMS ne SOS, na kurow no reyɛ adwuma ne Iridium sɛ wɔbɛtumi de push-to-talk voice anaa voicemail aba daakye.
- Mmara nsakrae: Bere a satellite ne cellular wiase no rehyia no, mmarafo resesa wɔn mmara. Wɔ U.S., FCC wɔ 2023 mu de too hɔ na akyiri no gyee mmara bi tom a ɛfa “Supplemental Coverage from Space” (SCS) ho a ɛhyɛ satellite adwumayɛfo ne mobile network adwumayɛfo nkɔso so sɛ wɔmmoa wɔn ho wɔ direct-to-device som mu fcc.gov. Saa mmara yi ma licensing yɛ mmerɛw ma nkampɔn te sɛ SpaceX+T-Mobile anaa AST+AT&T betumi abɔ spectrum no kyɛ ntam fam ne soro network ntam. Nea ɛho hia ne sɛ, FCC no nso sii interim 911 mmara: satellite messaging som biara a ɛde fon a nkɔmɔfo de da no so bɛka ho no, ɛsɛ sɛ ɛtumi frɛ 911 emergency som na ɛtumi de saa nkɔmɔ no kɔ baabi a ɛfata fcc.gov. Eyi daa adi akyerɛ bere a Apple SOS feature no gyee nkwa bebree – mmarafo pɛ sɛ wɔhwɛ sɛ satellite 911 frɛ ne nsɛm betumi kɔ emergency call center mu a ɛnyɛ den. Wɔ wiase nyinaa, mmarafo foforo nso redi wɔn akyi, resesa wɔn mmara sɛdeɛ Non-Terrestrial Networks (NTN) bɛbɛhyɛ mainstream telecom mu. Nkyirikyiri no, aman bi atoto mmara so bio sɛ wɔmpene so ma satphones a wɔmfa mmra ho ntia, efisɛ wɔsuro asomdwoe ho. Wɔ 2024 awieeɛ no, UK Foreign Office mpo de travel advisories baeɛ a ɛka kyerɛ akɔkɔdurofo sɛ satellite phones yɛ abɔnefo ade wɔ aman te sɛ India sɛ wonni license na ɛbɛtumi de kɔ confiscation anaa nkɔda so ts2.tech. Saa kɔkɔbɔ no da ho wɔ aman te sɛ Nigeria, Chad, ne Russia a ɛsɛ sɛ wopɛ permit. Enti sɛdeɛ technology no reyɛ satphones dɔɔso no, geopolitics so da so wɔ mmea bi mu.
- Amansan Mmerɛ Pa Mu Dwane: Amanehunu a atwa to no ada satcom ho akɛse. Bere a 2023 Turkey-Syria asasewosow sii no, local search-and-rescue akuw de satellite phones na wɔde bɔɔ nkɔmmɔ bere a dumsor ne cellular network bubu kɛse wɔ mantam no mu. Amaneɛ a efi asasewosow no baabi kyerɛ sɛ satphones na ɛyɛɛ kan san yɛɛ adwuma bio, maa amanaman mmoa tumi de wɔn ho bɔɔ nkɔmmɔ wɔ cellular blackout no mu. Wɔ United States, ogya kɛse a ɛsii Maui (August 2023) no maa fam infrastructure nyinaa bubu; aban ne mmoafo de sat phones ne Starlink terminals na wɔde boaboa nkɔguare ne supply chain ho. Saa ara nso na, bere a 2023 Atlantic hurricane bere mu, akuw te sɛ FEMA, Red Cross, ne telecom companies de portable satellite units ne satphones maa community leaders. Verizon disaster response team nkutoo de satellite devices bɛboro 1,000 maa first responders bere a hurricanes bubu conventional networks wɔ 2024 mu firerescue1.com. Saa nsɛm yi kyerɛ sɛ satellite connectivity nyɛ deɛ nkɔmɔfo pɛ – ɛyɛ nkwa akyirikyiri bere a amanehunu ba.
Bere a yɛrekɔ mu 2025 no, satellite fon a na ɛyɛ “niche” no reboaboa ne ho ano ne mainstream mobile ho. Ɛkɔ so no, ɛyɛ hybrid solutions: wo smartphone a wode di dwuma no bɛtumi de terrestrial 5G adi dwuma bere tenten, na sɛ wopue fi network ho anaa sɛ local infrastructure no bɔ no a, ɛbɛdan kɔ satellite mode so a w’ankɔhu. Eyi nkyerɛ sɛ satphone a wɔde yɛ adwuma pɛ no ayɛ dadaw – mmom, saa fon a wɔde yɛ adwuma pɛ no wɔ robust antenna, high gain, ne gyidie a fon foforo ntumi mmɛtɔ ho (ne true global coverage a direct-to-phone services a ɛreba no nnya nkɔda so). Nanso, ɛkyerɛ sɛ nnipa pii bɛwɔ kakra satellite ho tumi wɔ wɔn fon mu, na nnipa a wonim satcom ho nso reboro so.
Wɔ nkyɛmu a ɛreba yi, yɛbɛyi Nsɛmmisa a Wɔbisa Daa ho mmuae de bɛkyerɛkyerɛ satellite fon ne sɛnea wɔde di dwuma.
FAQ: Satellite Fon & Satellite Nkomfa
Q: Wɔtumi de satellite fon di dwuma wɔ wiase nyinaa anaa?
A: Ɛnyɛ baabiara. Aman pii mu no, wubetumi agye na wode satphone di dwuma a ɛyɛ pɛ – anaa ɛkɔ akyirikyiri a, ɛsɛ sɛ wokyere fon no din. Nanso, aman kakra bi kɔtɔ so anaa wɔde mmara pa ara to so wɔ satellite fon so efisɛ wɔsuro sɛ ɛbɛma asɛm aba. Sɛ nhwɛso, India mpo, wɔmma abɔfo a wofi aman foforo mmra mmanim de satphone (pɛpɛɛpɛ Thuraya ne Iridium fon) nnkɔ ɔman no mu gye sɛ wopɛ kwan fi aban hɔ. Indian mpanyimfo agye satphone afi nnipa nkyɛn na wɔaboaboafo bi ato so ama wɔde kɔto afiase efisɛ wɔde di dwuma a wonnya ho kwan, sɛnea U.S. embassy ka kyerɛ trak.in. Baako pɛ a wɔgye tom wɔ hɔ ne Inmarsat service a wowɔ license, efisɛ Indian mpanyimfo betumi atie nkɔmmɔ no reddit.com. Aman foforo a wɔde mmara to so ne China, North Korea, Cuba, Myanmar, Chad, ne Russia – baabi bi, ɛnyɛ sɛ wɔkɔtɔ so koraa, na mmom ɛsɛ sɛ wopɛ permit anaa wode state-sanctioned network na yɛ adwuma. Adwene a ɛda ho no, ɛyɛ sɛ wɔpɛ sɛ wɔbɔ mmɔden siw nkɔmmɔ a ɛyɛ hintidua (terrorist ne smuggler bi akɔda satphone so). Sɛ wopɛ sɛ wokɔ ɔman a mmara te saa no, hwehwɛ nsɛm no ho nimdeɛ ansa. Hwehwɛ embassy afotu na susuw sɛ wubetumi renti satphone wɔ baabi a wopɛ kɔ no sɛ wɔwɔ legal provider. Wɔ baabi a ɔko rekɔ so anaa nsu so a, biribiara betumi asi – sɛ wokɔfa satphone kɔ baabi a ɔko rekɔ so a, ebetumi ama w’anya adwene (ɛbɛyɛ lifeline anaa, anaa ɛbɛyɛ sɛ wopɛ sɛ wokɔhwɛ wo ho, sɛ wɔsusuw sɛ woyɛ spay). Da biara, susuw ho na kyerɛ mu pefee sɛ wopɛ sɛ wokɔhwɛ wo ho – sɛ nhwɛso, kyerɛ sɛ ɛyɛ adwuma ho na ma mpanyimfo no nhwehwɛ.
Q: Sɛ mepɛ sɛ meyɛ adwuma a, ɛsɛ sɛ meyɛ SIM card anaa service plan foforo? Mɛtumi de me SIM card a mewɔ no de di dwuma wɔ satphone mu?
A: Wopɛ sɛ wunya satellite service plan – standard cellular SIM (Verizon, AT&T, ne afoforo) ntumi nnwɔ satphone a ɛda ho ara mu. Satellite network biara wɔ ne SIM card ne ne subscription. Sɛ nhwɛso, Iridium phone de Iridium SIM na ɛyɛ adwuma; Inmarsat phone de Inmarsat SIM na ɛyɛ adwuma, ne saa ara. SIM yi na ɛma wopɛ satellite network no so na satellite providers a wɔyɛ adwuma wɔ ho na wɔbɔ wo ka. Nanso, satphone ne akyɛde bi wɔ hɔ a dual-mode anaa GSM roaming betumi ayɛ adwuma. Thuraya model no yɛ nea wɔka ho ho: Thuraya X5-Touch ne Thuraya fon bi a wɔyɛ dedaw wɔ SIM slot mmienu – baako de Thuraya SIM, baako de standard GSM SIM thuraya.com cdn.satmodo.com. Wɔ fon wei mu, wubetumi de wo local cell SIM ahyɛ mu na de fon no ayɛ sɛ GSM mobile a ɛda asase so network ho, na sɛ wopɛ a, wubetumi asesa kɔ satellite mode (de Thuraya SIM) bere a wopɛ off-grid. Saa ara nso na, Thuraya SatSleeve yɛ akyɛde a wode bɛtɔ wo smartphone ho na ɛma ɛtumi de Thuraya satellite channel di dwuma, na wo SIM a wode di cell service no so ara na ɛda so. Thuraya ho akyi, satellite smartphone services foforo (Apple Emergency SOS, ne afoforo) nso, wonde SIM foforo biara nni ho – mmom, Apple de Globalstar satellite connectivity ahyɛ iPhone hardware mu na Apple na ɔhwɛ satellite network fees no so (deɛ ɔde “Emergency SOS” na Apple na ɔhwɛ satellite network fees no so, ɛkɔsi sɛnea ɛte seesei).
Ntoasoɔ, sɛ wopɛ satphone a ɛda ho ara a: bɔ ho ban sɛ wobɛtɔ satellite airtime plan. Ebetumi ayɛ prepaid voucher (sɛ nhwɛso, 100 minutes a ɛyɛ valid 6 months) anaa monthly contract. Providers bi de rental SIM ma, sɛ wopɛ sɛ wode kakra pɛ. Sɛnea ɛte no, ntumi mfa wo Verizon SIM nhyɛ Iridium phone mu na w’ani da so sɛ ɛbɛyɛ adwuma – phone no renhu SIM no mpo. Nkyerɛase baako pɛ: cell carrier kakra wɔ Africa ne Middle East a wɔne Thuraya bɔ abɔden sɛ wobetumi ama roaming kakra wɔ Thuraya network so (enti wo cell SIM no na ɛbɛtua satellite usage no so ka wɔ agreement so). Bisa wo carrier sɛ wɔwɔ saa service no – ɛyɛ rarɛ na ɛyɛ den sene. Sɛ SpaceX ne afoforo de direct-to-cell ba a, daakye no, wo SIM a wode da so ara bɛtumi ama woanya satellite service, nanso ɛbɛyɛ wo phone a ɛwɔ satellite capability mu, ɛnyɛ satphone foforo so.
Q: Call quality ne speed no yɛ dɛn? Ɛbɛte sɛ phone call a wode di dwuma da biara anaa?
A: Ɔkasa ho nhyehyɛe wɔ nnɛ nnawɔtwe fon so yɛ pɔtee, nanso ɛnyɛ pɛpɛɛpɛ te sɛ nea ɛda ho adi wɔ fon so. Adwumayɛfo de compression di dwuma de bɔ bandwidth ho ban, enti asɛm no tumi te sɛ nea wɔabɔ mu anaa ɛte “tinny.” Nanso, kasa no ho tew ma ɛyɛ mmerɛw sɛ wobɛte ase. Nnipa bebree ho yɛ wɔn nwonwa sɛ satfon nkɔmmɔ no nni static anaa fuzz – sɛ wowɔ denam pa a, ɛyɛ digital link, enti ɛyɛ pɔtee anaa (sɛ denam no bɔ fam a) asɛm no betumi agyigye anaa atwa mu. Sɛ yɛka kasa ntɛm so, sɛ wowɔ geostationary system so (Inmarsat/Thuraya), hwɛ sɛnea ɛbɛyɛ sɛ ɛbɛfa dɔnhwereba du (0.5 seconds) kɔ na ɛba. Eyi betumi ama nkɔmmɔ no ayɛ kakra sɛ ɛyɛ den kosi sɛ wode ho bɛto ho; ɛte sɛ nea wokasa wɔ half-duplex radio so bere bi. Wɔ Iridium anaa Globalstar (LEO systems) so deɛ, ntɛm no yɛ ketewa – mpɛn pii ɛyɛ 50–150 ms, te sɛ Zoom nkɔmmɔ, enti ɛte sɛ nea ɛyɛ real-time spire.com.
Sɛ yɛka data ntɛm ho, satfon a wode bɛfa nsa so yɛ mmerɛw. Wɔde yɛ kasa nkutoo. Sɛ wokɔtɔ laptop de bɔ, sɛ Iridium 9555 de USB, data no yɛ 2.4 kilobits per second – ɛyɛ kilobits, ɛnyɛ megabits. Sɛ yɛka mu pɛpɛɛpɛ a, ɛbɛtumi ama email bi a ɛnni attachment kɔfa bɛyɛ dɔnhwereba 30. Nnawɔtwe fon foforo anaa add-on bi betumi aboa: Iridium GO! de modem pa ne compression bɛma wubenya bɛyɛ 15–20 kbps ma internet a ɛntwa da. Inmarsat IsatPhone Pro dedaw no nso wɔ mode bi a wode app titiriw bɛtumi de email tiaa bi asoma. Nanso, mma w’ani nnda sɛ wobɛtumi abrowse web wɔ satfon so – mfonini ne media deɛ, ɛnyɛ hɔ. Sɛ wopɛ internet a, hwɛ terminal kɛse (te sɛ BGAN hotspot anaa Starlink dish). Nanso, sɛ yɛde bɛyɛ nsɛm tiaa a, ɛyɛ. SMS text a wode satfon so kɔfa email-to-SMS gateway titiriw so na ɛfa dɔnhwereba 20–60 sɛkɛnd sɛ ɛbɛkɔ anaa aba. Satfon pii nso ma wubetumi atie voicemail anaa asoma nsɛm tiaa free fi provider website so kɔ fon no so (ɛyɛ mfaso ma abusuafo betumi akyerɛ wo a, wonnya sika so). Sɛ yɛto mu: kasa = eye (ɛyɛ ketewa sen fon, ebia ntɛm bi bɛka ho), data = ketewa (deɛ ɛfata nsɛm tiaa anaa GPS coordinates).
Q: Dɛn na ɛfa ahosiesie ho – wɔbɛtumi agye satellite nkɔmmɔ no? Wɔde encryption di dwuma?
A: Satellite fon network de encryption ne scrambling di dwuma wɔ kasa ne data so, ma ɛyɛ ho ban sen CB radio anaa analog nkɔmmɔ, nanso ɛnyɛ nea obi ntumi nni ho biribiara. Iridium, sɛ nhwɛso, de encryption cipher titiriw di dwuma wɔ ne link so – eyi boaboa ho ban fi nkɔmmɔ a ɛnyɛ den so. Wɔ afe 2012, adwumayɛfo bi bubu Iridium cipher no mu kakra, nanso ɛhia akwan pa ara na ɛnyɛ ɔhaw kɛse ma nnipa a wɔde di dwuma da biara. Inmarsat nso de digital encryption di dwuma ma nkɔmmɔ pii a wɔde handheld. Enti, ma ɔdeɛ biara, satfon nkɔmmɔ yɛ ho ban pa ara – obi ntumi nte so sɛ ɔde ham radio rehwɛ frequency. Nanso, satellite deɛ, ɛbɔ fi soro, na aban a wɔwɔ antenna kɛse anaa obi bɔne a ɔwɔ akwan pa betumi agye downlink no. Sɛ wɔwɔ decryption key anaa betumi abubu cipher no a, wɔbɛtumi ate. Eyi deɛ, ɛnyɛ biribi a ɛbɛba nkɔmmɔ a ɛda so da biara so. Ɛyɛ biribi a ɛyɛ ɔhaw kɛse wɔ nsɛm titiriw mu (te sɛ asraafo de encryption device foforo ka satfon ho ma nkɔmmɔ a ɛyɛ ahintasɛm).
Nkyerɛase foforo a ɛfa ahosiesie ho: beaeɛ hwehwɛ. Sɛ wokɔfa satphone di dwuma a, ɛyɛ mmerɛw sɛ ɛbɛyɛ dɛ wɔbɛtumi ahu beaeɛ a wowɔ efisɛ ɛsystem no nim sɛdeɛ ɛsatellite ne beam bɛn na w’afon no aka ho. Amanaman ntam nsa betumi aka sɛ wɔbɛhwehwɛ saa nsɛm yi fi providers hɔ (sɛ ɛyɛ mmara so anaa nkɔboa). Bio nso, obiara a onim w’afon satphone number no betumi anya beaeɛ a wowɔ ho nsɛm kakra sɛ ɔbɛtumi asusuw signal timing so – nanso, eyi nyɛ mmerɛw gye sɛ provider no boa. Asɛm no ase kɛse ne sɛ: sɛ wode di dwuma a ɛte sɛ nnipa foforo de a, satellite phones yɛ ho dwo a ɛfata. Sɛ ɔbenfo bi a ɔhwɛ ahosiesie so kaeɛ no, “nkɔmmɔ a wɔde satellite phones yɛ no, ɛyɛ den sen sɛ obi bɛtumi ate nkɔmmɔ a wɔde fon a ɛda fam yɛ” crateclub.com. Ka kyerɛ wo ho sɛ, wireless technology biara nni hɔ a ɛyɛ 100% ho dwo. Sɛ woyɛ journalist wɔ beaeɛ a ɛyɛ den a, susuw sɛ w’atamfo betumi ahwehwɛ biribiara a woyɛ, ka satcom ho. Fa saa ahosiesie a wode di fon biara so – mmmɔ nkɔmmɔ a ɛho hia paa gye sɛ wode ahosiesie foforo (sɛ secure app anaa code words) ka ho. Ma nnipa a wɔkɔ akɔtɔ akɔhwɛ anaa adwumayɛfoɔ, ahosiesie a wɔde too sat network no so no bɛyɛ dɛ – nokware, w’ankasa nkɔmmɔ no ho dwo sen sɛ wode unencrypted VHF radio anaa public Wi-Fi di dwuma.
Nsɛmmisa: Satphones betumi adwuma wɔ ofie mu? Wɔ car mu? Wɔ boat so?
Nkyerɛmu: Ofie mu: Ampa ara – gye sɛ wowɔ beaeɛ a ɛbɛn abɔnten. Satphones hia sɛ “wɔhunuu” satellite no. Wobetumi adwuma wɔ aben mu anaa ofie a wɔde dua si ho, nanso ɛbɛyɛ den wɔ concrete dan mu anaa dan a wɔde dade si ho. Sɛ wowɔ ship mu anaa car mu a, dade no bɛkata signal no so. Nea ɛbɛboa ne sɛ wode antenna a ɛda abɔnten. Satphones pii wɔ docking kits anaa antenna port. Sɛ nhwɛso, truck drivers anaa boatfo betumi de antenna ketewa si abɔnten (wɔ roof anaa mast so) na wɔde cable de kɔ docking station a satphone no bɛtena so. Eyi bɛma w’afon no atumi adwuma ofie mu efisɛ signal no bɛkɔ abɔnten. Wɔwɔ satellite Wi-Fi hotspots (te sɛ Iridium GO anaa Thuraya MarineStar, ne nkutoo) a wɔde si abɔnten na ɛma w’afon a wode Wi-Fi di dwuma betumi akɔ so wɔ ofie mu. Sɛ biribi si a, pue kɔ abɔnten na frɛ – mpo sɛ wopue fi tent mu anaa car mu frɛ, na wosan kɔ mu.
Nsɛmmisa: Dɛn na satphone international phone number yɛ? Nnipa betumi afrɛ me fi fon a ɛda fam so?
A: Satɛlaet fɔn biara wɔ ne ho din a wɔde ma no wɔ wiase nyinaa. Ntɔn ntɔn a ɛwɔ hɔ no, wɔn din fi aman a ɛho kɔd no mu: sɛ nhwɛso no, Inmarsat fɔn de +870, Iridium de +8816 anaa +8817, Globalstar de aman a wɔn gateway wɔ hɔ kɔd (ebinom de US din na ɛda ho). Wubetumi anya frɛ fi fɔn a ɛyɛ normal so – nanso nea ɔfrɛ no bɛtua sika kɛse (dɔllar bebree wɔ simma biara) gye sɛ ɔwɔ plan bi. Eyi nti, satɛlaet fɔn mu nnipa pii pɛ sɛ wɔn na wɔfrɛ, anaa wɔde VoIP nɔma a ɛde frɛ no kɔ satɛlaet fɔn so. Ebinom nso de local nɔma foforo ma: sɛ nhwɛso no, Iridium wɔ service a ɛma w’ankasa satɛlaet fɔn no betumi anya US nɔma (a ɛde frɛ no kɔ satɛlaet fɔn so) na ɛma ɛyɛ mmerɛw ma adwumayɛfo anaa abusuafo a wɔpɛ sɛ wɔfrɛ wo. Nanso, eyi de sika ka ho. Wubetumi nso de text message kɔ satɛlaet fɔn so wɔ email gateway so (sɛ nhwɛso no, sɛ wopɛ sɛ wotext Iridium fɔn a, wubetumi de email kɔ <number>@msg.iridium.com na ɛbɛyɛ SMS kɔ satɛlaet fɔn no so free). Asɛm no tiaa ne sɛ: wubenya nɔma a ɛyɛ wo de, na nnipa betumi afrɛ wo, nanso sika a ɛkɔ so nti, nnipa mfa saa fɔn no frɛ pii. Bio, ebinom a wɔde cellular fɔn frɛ betumi ahia sɛ wɔbue international dialing ansa na wɔatumi afrɛ satɛlaet kɔd no.
Q: Mɛtumi de satɛlaet fɔn di dwuma bere a asɛe anaa asiane ba? Ɛboa dɛn?
A: Yiw – ɛno na ɛda ne ho adi paa. Bere a asiane bi ba na ɛma dumsor ne cell tower no nyinaa gu, satɛlaet fɔn na ɛbɛtumi ama w’anya kwan ama wode asɛm akɔ. Wɔde dii dwuma wɔ Hurricane Katrina akyi, Haiti asasewosow 2010, ne nsɛm pii a ɛwɔ hɔ a aman no ntɔn atɔ. Nsɛmpɛfo a wɔhwɛ mmoa no so de satɛlaet fɔn si hɔ sɛ backup; sɛ nhwɛso no, FEMA team no wɔ mobile satɛlaet unit ne satɛlaet fɔn a wɔde bɛba bere biara a ɛho hia sɛ wɔne wɔn ho bɛkasa sɛ region no nyinaa comms atɔ fam investor.iridium.com investor.iridium.com. Nsɛm a ɛkɔɔ so ampa: Hurricane bi akyi wɔ Puerto Rico, satɛlaet fɔn bi a ɛwɔ dam a asɛe no so maa engineers no frɛɛ aban na wɔka kyerɛɛ wɔn dam no ho asɛm, na ɛmaa wɔyɛɛ evacuation a ɛboaa nkwa pii sia.org.
Nsɛm a ɛho hia wɔ amanehunu mu: Sɛ wowɔ satphone a wode bɛyɛ amanehunu ho adwuma a, ma ɛnnya nkuto (anaa nya solar/hand-crank charger). Sɔ hwɛ no bere so – mma amanehunu mmra ansa na wubetumi ahu sɛnea ɛyɛ adwuma investor.iridium.com investor.iridium.com. Sɛ amanehunu ba a, kɔ abɔnten na fa di dwuma – ɛbɛyɛ sɛ dan no atutu na ɛbɛyɛ den ama signal no. Bio, ka ho sɛ nnipa bebree bɛpɛ sɛ wɔde sat network di dwuma bere kɛse mu; ɛnni hɔ pii, enti yɛ nkɔmmɔ tiaa na fa SMS sɛ ɛbɛyɛ yie (SMS de network no ho nsɛm kakra na ɛtumi kɔ so yie bere a voice circuits no yɛ den). Amanaman na NGOs bi bɔ mmɔden sɛ wɔde satphone traffic no ma wɔn a wɔdi kan boafoɔ bere a amanehunu ba. Nanso sɛ woyɛ nipa baako a, wo satphone no yɛ akyɛde kɛse – nsɛm pii aba a mmirikafoɔ frɛɛ mmoa wɔ satphone so, anaa nkuro a wɔabɔ mu de no bɔɔ nkɔmmɔ de boaa wɔn ho.
Q: Dɛn na satellite phone de bɛboa wo bere a amanehunu ba?
A: Satphone bebree wɔ SOS anaa amanehunu button a wubetumi de frɛ mmoa bere a wo nkwa da so. Saa button yi de w’ankasa GPS bea bɛma preset emergency service. Sɛ nhwɛso, Garmin inReach ne satphone foforɔ bi de bɔ GEOS International Emergency Response Coordination Center a ɛbɛma wɔbɛka kyerɛ wɔn a wɔboa wɔ w’area no. Iridium Extreme 9575 SOS no betumi ayɛ sɛ ɛbɛfrɛ GEOS anaa number bi a woahyɛ t-mobile.com gearjunkie.com. Inmarsat phone betumi de GPS bea na wɔwɔ assistance button (nanso ɛbɛyɛ sɛ ɛbɛfrɛ number a woahyɛ, sɛ adamfo anaa SAR hotline). Sɛ wo device no nni SOS button (sɛ de dada anaa de a ɛnyɛ den), wubetumi frɛ emergency services. Ka ho sɛ 911 (anaa 112, ne saa ara) wɔ satphone so betumi anyɛ saa ara te sɛ cell phone so. Satellite network bi bɛbɔ mmɔden de 911 frɛ call center a ɛbɛn, nanso ɛbɛyɛ sɛ ɛkɔ generic center a ɛrenhu wo bea. Eye sɛ wunya rescue coordination center number pɛpɛɛpɛ anaa fa SOS service a ɛka sat plan ho. Ma nsuomfuofoɔ, satphone yɛ mmoa a ɛka emergency gear ho; ɛnyɛ DSC radio anaa EPIRB ananmu, nanso ɛma nkɔmmɔ a ɛkɔ ne ba, a ɛboa mmoa (wubetumi akyerɛ wɔn wo nsɛm). Satphone bi te sɛ Iridium Extreme ne Thuraya ma tracking – wubetumi de w’ankasa bea kɔ website anaa ma obi. Eyi betumi aboa ma obi ahu sɛ wopae anaa woagyina.
Q: Sɛ wopɛ sɛ wode satellite phone di dwuma a, ɛboɔ yɛ sɛn?
A: Yɛaka ho asɛm wɔ nsusuiɛ no mu, nanso sɛ yɛbɛto mu: adeɛ no ankasa bo fi ahanan dollar (wɔ mpaninfoɔ anaa kontrakt so tɔ no) kɔsi $1,500 anaa seneɛ no wɔ deɛ ɛyɛ fɛ paa no so. Airtime na ɛyɛ kɛse wɔ bere tenten mu. Nhyehyɛeɛ no yɛ fɛfɛɛfɛ: wubetumi atua $50 bosome biara de anya nkakrankakra (sɛ 10–30 simma) na afei $1 kɔ $2 simma biara a wopɛ so. Prepaid nhyehyɛeɛ betumi ayɛ $100 de anya 50 unit (1 unit = simma baako, ampa) a ɛbɛyɛ afe baako. Data a wode di dwuma (sɛ ɛwɔ hɔ) nso yɛ simma anaa megabyte biara na ɛyɛ den (dollar kakra biara megabyte baako wɔ network bi so). SMS nsɛm ho bo so yɛ ketewa (sɛ $0.50 biara wɔ Iridium so). Wɔwɔ unlimited nhyehyɛeɛ nso – Iridium de “unlimited” frɛ nhyehyɛeɛ bɛyɛ $150/bosome dada, a ɛyɛ deɛ aban anaa adwumayɛfoɔ de di dwuma. Globalstar deɛ, ne bo so yɛ dɛ: wɔwɔ nhyehyɛeɛ te sɛ $65/bosome de unlimited simma nanso ɛwɔ mmeaɛ bi mu pɛ (ne fair use ahyehyɛeɛ). Thuraya mpɛn pii bo so yɛ dɛ simma biara so (sɛ wode di dwuma wɔ ne mpɔtam hɔ, te sɛ Middle East). Sɛ wopɛ a, ka ho shipping ne activation bo ho, na sɛ wopɛ fɔne no akɔfa kakra pɛ, hwehwɛ rentals: adwumayɛfoɔ bebree renti satphone ma $8–$15 da biara ka airtime ho, a ɛbɛyɛ dɛ sɛ wopɛ de kɔ akɔyɛ adwuma baako pɛ. Afei, kae sɛ bo a ɛnni ho: ɛsɛ sɛ wode bere sua adeɛ no ne sɛ wopɛ so hwɛ so (ma ɛyɛ den, update, ne nsɛm a ɛho hia). Ɛnyɛ sɛ fɔne a wode di dwuma da biara; satphone betumi atena wo bag mu nna pii, enti ɛsɛ sɛ wopɛ so hwɛ sɛ ɛwɔ hɔ a ɛyɛ den a wopɛ.
Sɛ ɛyɛ anigyedeɛ, adwuma, anaa nsɛnnennen ho ahyehyɛdeɛ a, satellite fɔne ne satellite-cell som foforɔ reboaboa wiase a ɔrenni baabi a nsɛm nni hɔ. Sɛ technology no kɔ so – sɛ SpaceX ne AST de satellite retoa fɔne nkɔkɔɔ so a ɛbɛka fɔne a yɛde di dwuma da biara ho – ɛbɛyɛ sɛ yɛbɛfa sɛ yɛbɛtumi afrɛ anaa asoma nsɛm fi baabiara wɔ wiase so. Na kosi saa bere no, satphone a wode to wo ho so bɛkɔ so ayɛ adeɛ titiriw ma wubetumi anya nkɔmmɔ bere a ɛho hia investor.iridium.com investor.iridium.com.
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