Wo DMR Radio a Ɔyɛ Ɔbenfo
Wɔde Nan'an Chitai Trading Co., Ltd. sii hɔ wɔ afe 2014 mu na ɛyɛ adwumayɛfoɔ nkitahodi mfiri a ɛdi kan, a walkie-talkies ne ɛlɛtrɔnik nneɛma ka ho. Yɛn adwumakuo no wɔ nhwehwɛmu ne nkɔsoɔ kuo a wɔatu wɔn ho ama a wɔyɛ abenfoɔ bɛboro 100 na wɔyɛ ɔman-a ɛyɛ-adwini nhwehwɛmu beaeɛ a ɛyɛ mita 500 ahinanan. Yɛde yɛn nneɛma a yɛyɛ no nyinaa hoahoa yɛn ho, efi R&D so kosi nneɛma a yɛde ma so, na yɛhwɛ hu sɛ nneɛma no yɛ papa wɔ anammɔn biara mu. Yɛwɔ Quanzhou, Fujian, wɔ China Po so Silk Road ho, na yɛde nneɛma a wɔyɛ a ɛkɔ akyiri di dwuma de som wiase nyinaa gua ahorow.
Dɛn nti na ɛsɛ sɛ wopaw yɛn
Nnwuma a wɔayɛ no sɛnea wɔpɛ
Yɛde ano aduru a wɔahyɛ da ayɛ a egyina adetɔfo mfonini anaa nhwɛsode so ma, hwɛ hu sɛ nneɛma no di ahiade pɔtee bi ho dwuma. Yɛn nsakraeɛ ma yɛtumi di gua so ahwehwɛdeɛ soronko ho dwuma berɛ a yɛkura gyinapɛn a ɛkorɔn-a ɛyɛ papa mu.
Nneɛma Pa a Wɔhwɛ So
Efi nneɛma a wɔde yɛ nneɛma so kosi nneɛma a wɔawie so no, yɛdi akwan a emu yɛ den a wɔfa so hwɛ nneɛma a ɛyɛ papa so, na yɛhwɛ hu sɛ nneɛma biara du adwumayɛ ne ahotoso gyinapɛn ahorow a ɛkorɔn ho.
Akyi-Atɔn Mmoa
Yɛn adwumayɛfoɔ mfiridwuma kuo no wɔ hɔ sɛ wɔbɛsiesie nsɛm biara a ɛbɛba wɔ-adetɔn akyi, de adetɔfoɔ som a ɛkyɛn so ne mfiridwuma ho mmoa ma de hwɛ hu sɛ ɔdefoɔ no bɛnya osuahu a ɛnyɛ den.
Dmr Radio Mobile so na ɔde ne nsa kyerɛɛ ne so
Dmr Radio Mobile yɛ dijitaal radio gyinapɛn a Europa Telecommunications Standards Institute (ETSI) na ɛyɛe. Wɔagye atom kɛse wɔ wiase nyinaa na wɔayɛ no sɛnea ɛbɛyɛ a wobedi nkitahodi ahiade ahorow a adwumayɛfo a wɔde di dwuma wɔ nnwuma te sɛ ɔmanfo ahobammɔ, akwantu, nneɛma a wɔde di dwuma, nneɛma a wɔyɛ, ne nea ɛkeka ho no ho dwuma. DMR de dijitaal sɛnkyerɛnne di dwuma de nne ne data mena, na ɛma emu da hɔ kɛse, ɛma wotumi ka ho asɛm yiye, na ɛma tumi a ɛkɔ soro bere a wɔde toto analog nhyehyɛe ahorow ho no.
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Korɔ |
Afiri a edi mũ |
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Nkitahodi mu disance |
10km-50km(50km)(km) na ɛwɔ hɔ. |
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Adeban |
YATEGOOD |
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Battery Type a Wɔde Di Dwuma |
Batere biara nni hɔ a ɛho nhia |
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RF outputAhoɔden |
10W |
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Battery ahoɔden a ɛwɔ mu |
4800MAH na ɛyɛ adwuma |
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Dwumadie |
Nsu ho adanse |
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Kɛseɛ |
150 * 50 * 35MM na ɛwɔ hɔ |
Mfaso a ɛwɔ Dmr Radio Mobile so
Ɛnne a Wɔatu Akɔ Anim
DMR de dijitaal ɔdio codecs a ɛkɔ anim di dwuma, na ɛde nne nkitahodi a emu da hɔ a ɛte sɛ crystal-ba ba wɔ mmeae a ɛyɛ den mpo a dede a ɛwɔ akyi anaasɛ ɛtwetwe adwene wɔ hɔ. Mfiridwuma no ma nne yɛ papa, na ɛma wɔn a wɔde di dwuma no nya nkitahodi a emu da hɔ na wotumi de ho to so.
Enhanced Coverage ne Range a Wɔde Ma
DMR nhyehyɛe ahorow no de mfomso siesie akwan a etu mpɔn ne modulation nhyehyɛe ahorow di dwuma, na ɛma wotumi kata nneɛma so yiye na ɛkɔ soro bere a wɔde toto analog radio ahorow ho no. Saa nsɛm a wɔatrɛw mu yi boa ma wotumi de ho to nkitahodi so wɔ mmeae akɛse, a nkuraase ne mmeae a ɛwɔ akyirikyiri ka ho.
Tumi a Ɛkɔ Anim
DMR de time division multiple access (TDMA) mfiridwuma di dwuma, na ɛma nne akwan abien tumi gye frequency biako. Eyi ma DMR nhyehyɛe bi tumi yɛ mmɔho abien, na ɛma nnipa pii a wɔde di dwuma no tumi di nkitaho bere koro mu a wonhyia akwanhyia anaasɛ biribiara ntwitware.
Spectral Efficiency a Ɛtu mpɔn
DMR bandwidth a wɔde di dwuma yiye no ma kwan ma wonya akwan pii wɔ spectrum a ɛwɔ hɔ no mu, na ɛma wɔde radio frequency ahoɔden kakraa bi di dwuma kɛse. Eyi ma DMR yɛ nea eye ma ahyehyɛde ahorow a wɔrehwehwɛ sɛ wɔbɛma wɔn nkitahodi nhyehyɛe no ayɛ papa.
Ankorankoro Frɛ:DMR ma kokoam one-to-one nkɔmmɔbɔ tumi kɔ wɔn a wɔde di dwuma no ntam, hwɛ hu sɛ kokoam nkitahodi bere a ɛho hia. Saa ade yi som bo titiriw wɔ nnwuma a ɛsɛ sɛ wɔde nsɛm a ɛho hia mena wɔ ahobammɔ mu no mu.
Kuw a Wɔfrɛ:DMR boa kuw nkitahodi, na ɛma wɔn a wɔde di dwuma no tumi ne ankorankoro kuw bi a wɔadi kan akyerɛkyerɛ mu di nkitaho. Saa dwumadie yi ho wɔ mfasoɔ ma akuo a wɔreyɛ adwuma wɔ nnwuma a wɔbom yɛ mu anaa wɔ ntɛmpɛ mu berɛ a mmɔdenbɔ a wɔayɛ no pɛpɛɛpɛ ho hia.
Nkrasɛm a Wɔde Fa Text:DMR de text messages tumi ka ho, na ɛma wɔn a wɔde di dwuma no tumi de nkra ntiantiaa mena na wogye. Text message ma wonya ɔkwan a ɛyɛ mmerɛw na ɛyɛ anifere a wɔfa so di nkitaho, titiriw wɔ tebea horow a ebia nne nkitahodi mfata mu.
GPS ne Data a Wɔde Di Dwuma:DMR radio pii wɔ nea wɔasisi-wɔ GPS dwumadie mu, a ɛma wɔn a wɔde di dwuma no tumi di na wɔhwɛ beaeɛ a ankorankoro anaa agyapadeɛ wɔ wɔ berɛ ankasa mu. Bio nso, DMR boa data applications, na ɛma ɛyɛ mmerɛw sɛ wɔbɛsesa in.
Dmr Radio Mobile a wɔde di dwuma
Ɔmanfo Ahobammɔ:Wɔ tebea horow a emu yɛ den mu no, nkitahodi a emu da hɔ na wotumi de ho to so ho hia na ama wɔatumi adi ntɛmpɛ ho dwuma yiye. DMR ma ɔmanfoɔ ahobanbɔ ahyehyɛdeɛ, a mmarahyɛfoɔ, odumgyafoɔ, ne ayaresa a ɛhia ntɛm ka ho, nya ɔdio a ɛkɔ anim, tumi a ɛkɔ soro, ne nkitahodiɛ akwan a ahobanbɔ wom. Nneɛma te sɛ GPS akyidi ne ntɛmpɛ kɔkɔbɔ ma bere ankasa -yɛ nhyehyɛe na ɛma tebea ho nimdeɛ kɔ anim ma wɔn a wodi kan yɛ ho biribi.
Nneɛma a Wɔde Kɔ ne Nneɛma a Wɔde Kɔ:Nneɛma ne nnipa a wɔde fa baabiara a etu mpɔn no gyina nkitahodi a ɛnyɛ den so kɛse. DMR ma nkitahodi a etu mpɔn a ɛda wɔn a wɔde nneɛma kɔ, karkafo, ne afuw mu adwumayɛfo ntam no yɛ mmerɛw, na ɛma akwantu ne nneɛma a wɔde kɔ amannɔne no yɛ adwuma yiye. Efi po so ahyɛn sohwɛ ne nneɛma a wɔde kɔ amannɔne so kosi bere ankasa mu akyidi ne nkitahodi so wɔ mmeae a ɛyɛ den te sɛ hyɛn gyinabea ne wimhyɛn gyinabea, DMR ma adwumayɛ yɛ mmerɛw na ɛma adwumayɛ tu mpɔn.
Adansi ne Nneɛma a Wɔyɛ:Wɔ adansi mmeae ne mmeae a wɔyɛ nneɛma no, nkitahodi a etu mpɔn ho hia kɛse ma ahobammɔ ne adwumayɛ a etu mpɔn. DMR radio ma nkitahodi a wotumi de ho to so wɔ mmeae a dede kɛse -yɛ, na ɛma adwumayɛfo tumi yɛ nhyehyɛe, bɔ ahobammɔ ho asiane ho amanneɛ, na wɔyɛ wɔn ade ntɛm ara wɔ tebea horow a ɛresakra ho. Nneɛma te sɛ adwumayɛfoɔ a ɔno nko ara kɔkɔbɔ ne man-down alarms ma adwumayɛfoɔ ahobanbɔ kɔ anim wɔ tebea a ɛbɛtumi ayɛ asiane mu.
Ahɔhoyɛ ne Anigyede:Adetɔfo osuahu soronko a wɔde bɛma wɔ ahɔhoyɛ ne anigyede mu no gyina nkitahodi a ɛnyɛ den a ɛda adwumayɛfo ntam so. DMR ma nkitahodi a etu mpɔn yɛ mmerɛw, na ɛma adwumayɛfo tumi hwɛ nneɛma a wɔde kɔ amannɔne so, bua ahɔho abisade, na wɔhwɛ hu sɛ adwumayɛ kɔ so yiye. Aso afiri a wɔde anifere yɛ ne radio a emu yɛ hare ma wotumi di nkitaho a ɛnyɛ nea ɛhaw adwene, na ɛmma ahɔho osuahu no nsɛe pii.
Nwomasua:Nhomasua asoɛe ahorow de DMR redi dwuma kɛse de ama sukuupɔn no mu ahobammɔ ne nkitahodi akɔ anim. Efi ahobanbɔ adwumayɛfoɔ a wɔyɛ adwuma bom ne ntɛmpɛ a wɔhwɛ so so kɔsi nkitahodiɛ a wɔma ɛyɛ mmerɛ wɔ faculty ne adwumayɛfoɔ ntam no, DMR boa ma adesua tebea a ahobanbɔ ne nhyehyɛeɛ yie-yɛ.
Adwumayɛ Nnyinasosɛm a ɛfa Dmr Radio Mobile ho
Nsɛnkyerɛnneɛ Encoding
Wɔde nne a wɔde hyɛ mu no ahyɛ dijitaal sɛnkyerɛnne mu.
Nkrasɛm a wɔde ma
Wɔde saa dijitaal sɛnkyerɛnne yi mena wɔ frequency range so, de DMR bandwidth a wɔde di dwuma yiye no di dwuma.
Ɔgyeɛ
DMR mfiri foforo gye sɛnkyerɛnne no na ɛsan decode no kɔ nne mu.
Radio Ahorow:DMR radio ahorow wɔ akwan horow so, a nea ɛka ho ne nsa a wɔde fa so, mobile units a wɔde yɛ kar, ne repeaters a wɔde trɛw network coverage mu. Hwɛ w’ahiade ahorow wɔ adwumayɛ mu na paw radio ahorow a ɛfata w’adwumayɛfo ne nneɛma a atwa wo ho ahyia yiye. Susuw nneɛma te sɛ sɛnea wotumi fa so, sɛnea ɛtra hɔ kyɛ, ne batere nkwa nna ho hwɛ.
Frequency Bands a Wɔde Di Dwuma:DMR nhyehyɛe ahorow no yɛ adwuma wɔ frequency band ahorow so, a VHF ne UHF ka ho. Frequency band a wɔpaw no gyina nneɛma te sɛ coverage ahwehwɛde, asase, ne nea ebetumi atwitware so. Wo ne radio so nkitahodi ho ɔbenfo bi nsusuw ho na woahu frequency band a eye sen biara ma w’ahiade pɔtee.
Su:DMR de nneɛma ahorow pii ma, efi nne nkitahodi titiriw so kosi dwumadi ahorow a ɛkɔ akyiri te sɛ nkrasɛm a wɔde kyerɛw nsɛm, GPS akyi a wodi, ne adwumayɛfo a wɔyɛ ankonam kɔkɔbɔ so. Hwɛ wo dwumadie ahiadeɛ na fa nneɛma a ɛbɛma wo - ayɛ yie no di kan.
Tumi ne Scalability:Susuw dodow a wɔde di dwuma ne nkɔso a wɔhwɛ kwan bere a worepaw dijitaal mobile Dmr Radio Mobile no ho. Hwɛ sɛ nhyehyɛe no wɔ tumi a ɛdɔɔso a ɛbɛma woadi wo mprempren ne daakye nkitahodi ahiade ahorow ho dwuma. Scalable systems ma wo kwan ma wotrɛw wo network mu bere a w’ahyehyɛde no nyin no.
Bɔgyete:Digital mobile radio nhyehyɛe no bo gu ahorow a egyina nneɛma a ɛwom, nea ebetumi ayɛ, ne nnwinnade a wɔpaw so. Fa sikasɛm nhyehyɛe si hɔ na hwehwɛ akwan horow a ɛne wo sikasɛm mu ahokyere hyia. Kae sɛ wobɛfa ɛka a wɔbɔ wɔ bere tenten-te sɛ nsiesie ne nkɔso a ebetumi aba ho.
Adetɔnfo a Wɔpaw:Paw adetɔnfo a ɔwɔ din pa a ne ho akokwaw wɔ DMR mfiridwuma mu. Hwehwɛ adetɔnfo a wɔde mmoa a edi mũ ma, a nhyehyɛe nhyehyɛe, nea wɔde besisi, ntetee, ne nsiesie a ɛkɔ so ka ho. Susuw nneɛma te sɛ adetɔfo som, nneɛma a wɔyɛ no yiye, ne warranty a wobetumi apaw ho.
Ahobammɔ ne Nsiesiei
Nnwinnade Ahobammɔ
Fa nnwinnade no sie yiye na amma anhwere anaasɛ wɔrenwia. Sɛ wode nnwinnade no redi dwuma wɔ mmeae a nnipa pii wɔ a, hu asiane a ɛwɔ kotoku mu afow ne ahobammɔ ho asiane afoforo mu.
Nsiesiei a Wɔyɛ no Daa
Siesie nnwinnade no na hwɛ mu daa na hwɛ sɛ akyi ne emu nneɛma no nsɛee. Yɛ nsiesie daa sɛnea nnwinnade nhoma no kyerɛ, te sɛ batere a wobɛsesa ne antena no a wobɛhohoro.
Battery a Wɔde Di Dwuma
Fa batere a edi kan anaa nea ɛne no hyia di dwuma. Kwati sɛ wode batere a ɛba fam bedi dwuma, a ebetumi asɛe nnwinnade no anaasɛ ɛde ahobammɔ akwanhyia aba. Charge battery no daa na kwati sɛ wobɛbɔ boro-discharge na ama battery nkwa nna akyɛ.
FAQ
Yɛnim no yie-sɛ yɛyɛ dmr radio ayɛfo ne wɔn a wɔde ma wɔ China no mu baako. Yɛsrɛ sɛ ntwentwɛn wo nan ase sɛ wobɛtɔn dmr radio a wɔayɛ no sɛnea wɔpɛ no kɛse afi yɛn adwumayɛbea hɔ. Sɛ wopɛ nneɛma a ne bo nyɛ den pii a, di yɛn ho nkɔmmɔ mprempren.