Directional microphone rau wiretapping deb

Directional microphones muaj lub diffuser, thiab cov amplifier. Muaj ntau cov kev hloov uas yog siv los ntawm kev pab tshwj xeeb. Niaj hnub nimno pab kiag li lawm yog manufactured nrog cov ntxaij lim dej thiab yog tsis muaj lawv. Muaj ntau cov kev hloov uas yuav khav siab rhiab heev. Yog hais tias koj ntseeg hais tias cov kws txawj, tus qauv yog zoo dua kom tau ob lithium roj teeb.

Yam tsawg kawg nkaus pib zaus nyob rau nruab nrab yog 300 MHz. Neeg mus rau lub impedance ntawm tsawg tshaj li 3 MV. Muaj ntau cov qauv siv ob amplifiers. Lub conductivity ntawm lub lub teeb liab nyob rau hauv xws li ib tug cov ntaub ntawv tsub kom heev xav. Kev ua lag luam directional microphone rau kev nqi txog 12 txhiab. Tshiav.

Yuav ua li cas yuav ua rau koj tus kheej ob txhais tes?

Yuav kom ua lub directional microphone nrog koj ob txhais tes, koj yuav tsum xub ua lub installation ntawm lub diffuser. Muaj ntau cov kws txawj nyob rau hauv qhov teeb meem no, pom zoo kom siv ntawm lub diode ntaus ntawv. Yam tsawg kawg nkaus rhiab heev index muaj ib tug nruab nrab ntawm 4 MV. Tsis tas li ntawd muaj nqis ntsoov teev yog hais tias lub microphone xav tau ib tug me me lim, uas yuav kam nrog rau transients. Amplifiers zoo uas tsis muaj pass hom.

Fais fab kev noj lawv yeej tsis siab dhau heev lawm. Tsis tas li ntawd muaj nqis ntsoov teev yog hais tias lawv yog compact thiab tsis nyob ntau qhov chaw nyob rau hauv lub ntaus ntawv. Ncaj qha mus rau lub roj teeb yog ntsia downstream ntawm lub diffuser. Yuav kom nce lub teeb liab conduction pom zoo qhov adapter.

Ntaus chaw King EH031

Cov microphones yog directional cov lus teb yeej tau ib tug zoo cim. Yog hais tias koj ntseeg hais tias cov kws txawj, lub teeb liab conduction nyob rau hauv lub ntaus ntawv yog heev siab heev. Tshwj xeeb mloog yog muab ib tug zoo amplifier. Nyob rau hauv no microphone, nws siv lub line-hom. Cov kev tiv thaiv system yog siv PP40 chav kawm ntawv.

Ua hauj lwm humidity ntawm lub series microphone sawv ntawm 40%. Yog hais tias koj ntseeg hais tias cov kws txawj, cov tsawg zaus lub khob hliav qab ntaus nqi tsis muaj teeb meem. Txawv teb chaws muaj teeb meem heev txo lub audibility zoo. Qhov no directional microphone ntawm ib tug deb ntawm 130 meters ua hauj lwm zoo. Suab line-nyob rau hauv cov ntaub ntawv no, tsis muaj. Nws yuav tsum yog ib tug kev hloov kho nyob rau hauv lub cheeb tsam ntawm 8800 rubles.

Series microphones King EH035

Qhov no directional microphone rau wiretapping yog ua li cas nrog ob tug dipole transistor. Lub amplifier siv ib tug txheej txheem tsawg zaus hom. Lub rhiab heev index yog sib npaug zos rau cov impedance ntawm 3.3 MV. Yog hais tias cov kws txawj ntseeg, ces lub teeb liab yog heev siab heev conductivity thaum uas tsis muaj frequencies.

Cov neeg xyuas pib nyob rau hauv lub kev hloov kho yog thaum lub tsheb ntawm tus dais. Tsis tas li ntawd muaj nqis ntsoov teev yog tias cov qauv yog txawm peem rau nrog zoo heev anti PP42 chav kawm ntawv system. Tag nrho cov no yuav qhia tau tias cov hloov yog tau khiav lag luam ntawm ib tug deb ntawm dua 130 meters. Audible lub suab yog heev siab heev thaum muaj kev kub frequencies. Cov xim, loj me me microphone. Tus nqi ntawm cov khoom no yog pib thaum 13 txhiab. Tshiav.

Nta hloov King EH040

Lub microphone (directional) sawv cev los ntawm lub series yog siab zoo lub rooj sib hais thaum uas tsis muaj frequencies. Lub lim siv nyob rau hauv cov hloov nrog diode adapter. Yog hais tias cov kws txawj ntseeg, ces lub diffuser muaj ib tug uas tsis muaj lub teeb liab-qhia. Tsis tas li ntawd muaj nqis ntsoov teev yog tias cov qauv muaj teeb meem nrog ceev ceev tawm. Lub roj teeb ntaus ntawv siv lithium hom, thiab nws yog tsim los rau tsib lub sij hawm. Tus nqi ntawm lub zog nws yog tsis tshua muaj me me. Lub amplifier siv nyob rau hauv tus qauv ntawm cov uas tsis muaj zoo. Nws yuav tsum yog ib tug ntaus ntawv nyob rau hauv khw muag khoom noj txog 12 300 rubles.

Ntaus chaw Shure SV200

Qhov no microphone (unidirectional) yog zoo rau eavesdropping los ntawm ib tug deb ntawm dua 100 meters. Yog hais tias koj ntseeg hais tias cov kws txawj, qhov uas tsis muaj frequencies yog hnov zoo. Adapter rau lub microphone khaws ib tug zoo nkauj zoo zoo. Tsis tas li ntawd muaj nqis ntsoov teev yog hais tias lub diffuser muaj peev xwm sawv ntawm ua hauj lwm thaum muaj kev kub vaum. Tshwj xeeb mloog yog muab ib tug me me lim uas lim tawm undesirable suab.

Cuam ntxaij lim dej extraneous deeg nws heev yog. Txawm li cas los, cov shortcomings nyob rau hauv lub ntaus ntawv tseem yog. Nrog siab frequencies ntawm ntev ntau cov qauv copes tsis zoo. Suab kab nyob rau hauv cov ntaub ntawv no yog tsis tuaj kawm ntawv. Tsis tas li ntawd muaj nqis ntsoov teev yog tias cov qauv yog sai sai tawm. Nyob rau hauv cov ntaub ntawv no, lub roj teeb taw qhia puav thiav. Nws yuav tsum yog ib tug kev hloov kho ntawm presently txog 14 300 rubles.

Series microphones Shure SV300

Qhov no microphone (unidirectional) yog qhov zoo tshaj plaws suited rau ib tug tshaj plaws deb ntawm 140 meters. teeb liab conduction thaum uas tsis muaj frequencies, nws yog theej siab. Thaum ib tug deb ntawm txog li 80 meters nyob rau hauv ib tug audible lub suab no zoo heev. Connector rau ib lub roj teeb nyob rau hauv cov ntaub ntawv no matched dipole hom. Diffuser ntawm no microphone yog siv tsuas yog ib qho. Rau headphones siv ib tug linear coaxial tso zis. Tsis tas li ntawd, cov kev hloov kho muaj ib qhov 3.5 mm. Neeg siab zaus nyob rau hauv cov ntaub ntawv no yog 3.3 MV.

Yog hais tias koj ntseeg hais tias cov kws txawj, cov tub txawg rau cov ntaus ntawv tsis haum nyob rau hauv qhov zoo tshaj plaws txoj kev. Lub hwj chim taw qhia ntawm cov qauv no. Tsis tas li ntawd muaj nqis ntsoov teev yog hais tias lub diffuser phem daws uas muaj frequencies. Adapter rau linear video tso zis ntaus ntawv yog offline. roj teeb taw qhia yog tsis yog muab los ntawm lub chaw tsim tshuaj paus. Nws yog ib qhov directional microphone rau eavesdropping los ntawm ib tug deb nyob rau hauv lub chav 10-11 txhiab. Tshiav.

Nta hloov caij NTG-2

Qhov no microphone (qhia) yog ua nrog ob tug diffusers. Yog hais tias cov kws txawj ntseeg, ces lub teeb liab yog heev siab heev conductivity thaum uas tsis muaj frequencies. Thaum ib tug deb ntawm 100 meters yog ib tug zoo audible lub suab. Lim impulse suab nrov nyob rau hauv cov ntaub ntawv no yog tsis tuaj kawm ntawv. Tsis tas li ntawd muaj nqis ntsoov teev yog hais tias lub amplifier rau lub microphone khaws tsis muaj ib tug adapter.

Yog hais tias peb tham txog connectivity, nws yog ib qho tseem ceeb hais qhov xub ntiag ntawm lub coaxial connector. Suab line-nyob rau hauv kev hloov kho no kuj muaj nyob. Audibility siab frequencies ntawm ib tug deb yog tsis zoo heev. Cov kauj rhiab heev nyob rau theem ntawm 2.2 MV. Yog hais tias koj ntseeg hais tias cov kws txawj, lub microphone rau kev siv tsis yog tshwj xeeb zoo. Nws yuav tsum tau muab sau tseg tias cover yog tsis muab rau nyob rau hauv nws cov teeb. Nws yuav tsum muaj ib directional microphone rau eavesdropping los ntawm ib tug deb ntawm txog 14 txhiab. Tshiav.

Ntaus Tsis Xaxoo R23S

Nws yog ib tug compact thiab high-zoo microphone. Yog hais tias koj ntseeg hais tias cov kws txawj, tus qauv yog feem ntau siv los ntawm tshwj xeeb cov kev pab cuam. Ua hauj lwm apparatus av noo yog 44%. Thaum kub siab tshaj 45 degrees ntawm nws siv yog txwv tsis pub. Lub diffuser yog siv nyob rau hauv cov hloov ntawm lub diode hom, thiab adapters nyob rau hauv nws sib phim nrog ob tug contactors. Lim cov qauv txheej txheem teem ntawm tsawg zaus hom. Ncaj qha mus thov kom cov uas tsis muaj-impedance amplifier adapter.

Parameter tshaj plaws pib rhiab heev nce mus txog 4.3 MV. Yog hais tias koj ntseeg hais tias cov nqe lus ntawm cov kws txawj, tus qauv admirably nrog wiretapping ntawm ib tug deb ntawm dua 150 meters. Failures nyob rau hauv lub amplifier exhibits ib tug tsis tshua muaj heev. Cov kev tiv thaiv system yog siv tau nyob rau lub microphone chav kawm ntawv PP40. Tus nqi ntawm cov qauv no pib los ntawm 10 txhiab. Tshiav.

Series microphones Xaxoo R25S

Qhov no yog ib tug neeg thiab high-zoo microphone. Yog hais tias cov kws txawj ntseeg, ces lub teeb liab conduction thaum uas tsis muaj frequencies, nws yog siv tau. Tsis tas li ntawd muaj nqis ntsoov teev yog tias tus ntaus ntawv yog tso cai rau yuav siv nyob rau hauv ntub huab cua. Tawm zoo tawm los siv nyob rau hauv cov ntaub ntawv no.

Lwm apparatus muaj ib tug connector los ntawm 3.5 mm. Roj teeb thaum lub microphone siv lithium hom 2 A. Raws li cov kws muaj txuj tus lus, lub high-zaus qauv copes tsis qhov zoo tshaj plaws txoj kev. Lim yog siv nyob rau hauv cov hloov nrog tooj liab insulators. Nyob rau hauv loj microphone nws yog compact. Nws nqi pib los ntawm 9300 rubles.

Model nta Sennheiser XSW 12

Qhov no microphone yog tsis haum rau wiretapping ib tug luv luv deb. Lim impulse suab nrov thov uas tsis muaj zoo. Txawm li cas los, nws muaj nqis ntsoov teev kev hloov kho compactness. Tus adapter yog txuas mus rau lub microphone yog heev txhim khu kev qha. Lub rhiab heev index yog tsawg tshaj li 3.2 MV.

Nws tseem yog nqi sau cia hais tias tus qauv diffuser lov feem ntau. Lub roj teeb yog siv tsuas yog rau cov 3 A. Cov kev tiv thaiv system siv hauv chav kawm ntawv RK40. Ua hauj lwm humidity ntawm lub microphone yog ntawm ib theem ntawm 34%. Tau cov khoom, tus neeg siv yuav rau 8300 rubles.