A parabolic (or paraboloid or paraboloidal) reflector (or dish or mirror) is a reflective surface used to collect or project energy such as light, sound, or radio waves. Its shape is part of a circular paraboloid, that is, the surface generated by a parabola revolving around its axis. The parabolic reflector transforms an incoming plane wave travelling along the axis into a spherical wave converging toward the focus. Conversely, a spherical wave generated by a point source placed in the focus is reflected into a plane wave propagating as a collimated beam along the axis.
Parabolic reflectors are used to collect energy from a distant source (for example sound waves or incoming star light). Since the principles of reflection are reversible, parabolic reflectors can also be used to collimate radiation from an isotropic source into a parallel beam. In optics, parabolic mirrors are used to gather light in reflecting telescopes and solar furnaces, and project a beam of light in flashlights, searchlights, stage spotlights, and car headlights. In radio, parabolic antennas are used to radiate a narrow beam of radio waves for point-to-point communications in satellite dishes and microwave relay stations, and to locate aircraft, ships, and vehicles in radar sets. In acoustics, parabolic microphones are used to record faraway sounds such as bird calls, in sports reporting, and to eavesdrop on private conversations in espionage and law enforcement.
Good day po, bakit po kaya parang walang pagbabago sa speed nung nagkabit ako ng grid parabolic antenna, gamit ko po ay LTE openline router, TP-link TL-MR100. Smart sim po ang naka insert. Secondhand po ang antenna at sabi nung previous owner working naman daw po yun. Pwede po kayang hindi sila...
Boss / Master sa mga nag i install ng mga parabolic antenna need pa ba ng permit. Pinapa alam ba muna sa baranggay hall or sa mga network providers na nag install ng cell towers?
hello po, simula po nung maglagay ng parabolic antenna yung kapitbahay namin humina po signal ng mimo antenna ko. naagaw po ba ng parabolic ang signal coverage ? mas malakas po ba ang parabolic?
Ano po magandang parabolic antenna para sa modem na greenpacket d2 or 936 para sa dead spot as in zero signal kahit cp wala signal. meron nag offer pero mahal. balak ko sana ako nalang magkabit.
Looking for a trade mga paps sa aking
Zensei Ultra MIMO Parabolic Grid Antenna
nabili ko last 2 years pero around 1 month lang nagamit dahil nakapakabit na kami ng fiber optic internet ng PLDT.
yung pagkabili ko nito ay halos 10k dala na sa shipping thru lbc.
Paki check nlng po ng details sa...
May gumagamit ba dito ng parabolic antenna 2*30dbi
tas naka unlidata 299 sa smart/tnt ..
tanong lang if nakaranas na kayo ng blocking sa smart
tas ganyan antenna at promo na gamit nyo?
Dito sa amin sa Sta Marcela Apayao, mabagal ang internet lalo na sa umaga kaya nag set up ako ng cignal dish sa bubong tas focal point nya ung outdoor modem
ang nakukuha ko lng na signal sa umaga mga from (11AM-10PM)50-160kbps
kapag gabi nman start ng 11PM - pumapalo na ng 5-6Mbps
eto ung...
Hi guys PA help naman d ko maka kuha ng signal for globe broadband kahit may parabolic grid ako... Dati Meron for at least 2 years then bigla na wala KAHOT ano gamit ko na antenna d maka kuha nag change modem ako same thing... What do you suggest I do I live only 3 kilometers from the tower...