Abien-Way Radio Range Ne Nneɛma a Ɛka No

Two-way radios, a wɔsan frɛ no walkie-talkies, yɛ mfiri a ɛma wotumi di nkitaho ntɛm ara a wɔmfa wɔn ho nto cellular networks so. Wɔde di dwuma kɛse wɔ ɔmanfo ahobammɔ, aguadi, ne abɔnten dwumadi ahorow mu. Nneɛma ahorow na ɛka wɔn dodow, na sɛ wote saa nneɛma yi ase a, ebetumi aboa wo ma woapaw na wode adi dwuma sɛnea ɛfata.

Nsusuwii mu kwan a radio ahorow a ɛwɔ akwan abien-fa so no taa fi kilomita kakraa bi kosi kilomita du du, nanso wɔ nneyɛe mu no, ɛtaa yɛ tiaa kɛse. Wɔ tebea pa mu, te sɛ asasetaw a ɛbue, a biribiara nsiw kwan anaasɛ ɛwɔ mmeae a ɛkorɔn no, adwumayɛfo nnwinnade a wɔde ahoɔden a ɛkorɔn-nkrasɛm ne antenna a etu mpɔn ahyɛ mu ma no tumi twa kilomita du du. Nanso, wɔ mmeae a ɛyɛ den te sɛ mmeae a wɔasisi-a ɛyɛ den, mmeae a mmepɔw wɔ, anaa kwae ahorow mu no, sɛnkyerɛnne kwan so akwanside ne akwan pii a ɛtwetwe adwene betumi atew kwan a etu mpɔn no so akɔ mita ɔhaha pii anaa nea ennu saa mpo.

Transmitter tumi yɛ ade titiriw a ɛma wohu baabi a wobetumi akɔ. Sɛ yɛbɛka no ɔkwan biara so a, tumi a ɛkɔ soro kyerɛ sɛ nsɛnkyerɛnne a wɔde mena no kwan kɛse. Ɔmanfoɔ walkie-talkies taa de ahoɔden watt 0.5 kɔsi 2 di dwuma, berɛ a adwumayɛfoɔ nnwinnadeɛ tumi du watt 5 anaa nea ɛboro saa. Antenna su ne ne sorokɔ nso ho hia. High-gain directional antennas ma nkitahodi tumi a ɛkɔ akyirikyiri-tu mpɔn kɛse, na antenna a ɛkorɔn a wɔde si hɔ no ma sɛnkyerɛnne a wɔde kata so no yɛ kɛse.

Wontumi mmu ani ngu nneɛma a atwa yɛn ho ahyia so wɔ nkɛntɛnso a ɛbɛka radio ahorow a ɛwɔ akwan abien-kwan no so. Nsuo a ɛyɛ nwini, osuo, ne sukyerɛmma tumi twetwe radio asorɔkye bi, berɛ a anyinam ahoɔden a ɛtwetwe (sɛ nhwɛsoɔ no, ɛfiri anyinam ahoɔden nhama a ɛwɔ ahoɔden kɛseɛ ne ɛlɛtrɔnik mfiri mu) tumi ma nsɛnkyerɛnneɛ no brɛ ase. Bio nso, mpɛn dodow a wɔpaw no ho hia yiye. VHF (frequency a ɛkorɔn yiye, 30-300MHz) wɔ asorɔkye tenten ne nea ɛkɔ mu a ɛyɛ mmerɛw nanso diffraction a emu yɛ den, na ɛma ɛfata ma asase a ɛda hɔ. UHF (ultra-high frequency, 300-3000MHz) wɔ asorɔkye tenten tiawa na ɛhyɛn mu denneennen nanso ɛnyɛ den sɛ akwanside besiw ano, na ɛma ɛfata kɛse ma nkurow akɛse mu mmeae.

Sɛ yɛbɛbɔ no mua a, nkitahodi kwan a ɛwɔ radio a ɛwɔ akwan abien- mu no nyɛ botae a wɔahyɛ da ayɛ; wɔde mfiri no parameters, nneɛma a atwa yɛn ho ahyia, ne frequency a wɔpaw a wɔaka abom na ɛkyerɛ. Ɛsɛ sɛ wɔn a wɔde di dwuma no sesa wɔn mfiri nhyehyɛe no sɛnea wɔn ahiade ankasa te na ama wɔahwɛ ahu sɛ nkitahodi a eye sen biara.