Ma Attenuator a 75 ohms 75Ω Okhazikika 75 Ohms Okhazikika

Ma Attenuator a 75 ohms 75Ω Okhazikika 75 Ohms Okhazikika

Mawonekedwe:

Kulondola Kwambiri
Mphamvu Yaikulu
Broadband

Mapulogalamu:

Opanda zingwe
Rada
Mayeso a Laboratory

Lumikizanani Tsopano

Chotetezera cha 75 ohms ndi mtundu wa chotetezera chomwe chimatchedwa impedance yake ya 75 ohms.

Ndi gawo losagwira ntchito lomwe limagwiritsidwa ntchito kuwongolera mphamvu ya chizindikiro cha dera, Chochepetsera mphamvu cha 75Ω chimaletsa kukulitsa ndi kusokoneza chizindikirocho, komanso chimaletsa kulephera komwe kumachitika chifukwa cha kuchuluka kwa chizindikiro.

Makhalidwe akuluakulu a 75Ω otetezera okhazikika ndi awa:

1. Kufananiza Impedance: Impedance ya 75 Ohms yokhazikika yochepetsera mphamvu imagwirizana ndi impedance yodziwika bwino ya mzere wotumizira chizindikiro cha zida zamakanema, wailesi yakanema ndi makina a wailesi yakanema, motero imachepetsa kuwunikira ndi kutayika kwa chizindikiro chotumizira.
2. Kusokonezeka kochepa: Chochepetsera mphamvu ya chizindikirocho chingachepetse mphamvu popanda kuyambitsa kusokonezeka kwina kapena kusokoneza chizindikirocho.
3. Kudalirika Kwambiri: Chifukwa chakuti zotchingira magetsi zimakhala zinthu zopanda mphamvu ndipo zilibe zinthu zosuntha, zimakhala zodalirika kwambiri ndipo sizifuna kukonzedwa kapena kusinthidwa.

Ma attenuator a 75 ohms amagwiritsidwa ntchito kwambiri pazinthu zotsatirazi:

1. Mu ma network a wailesi yakanema ndi ma network a wailesi yakanema ya digito, imagwiritsidwa ntchito kulamulira mphamvu ya chizindikiro ndikuchepetsa kuwunikira ndi kutayika kwa chizindikiro.
2. Pakupanga ndi kutumiza makanema apamwamba komanso omveka bwino, lamulirani mphamvu ya chizindikirocho ndikusunga mtundu wa kusintha.
3. Mu makina ofalitsa mauthenga ndi ma wailesi yakanema, zida zomwe zimasintha mphamvu ya ma signal kuti zigwirizane ndi momwe ma signal amagwiritsidwira ntchito komanso kukulitsa kuchuluka kwa ma signal.
4. Mu ma antenna a pa TV, amagwiritsidwa ntchito kulinganiza mphamvu ya chizindikiro pakati pa ma amplifiers ndi ma antenna.

Qualwaveimapereka zinthu zosiyanasiyana zolondola kwambiri komanso zamphamvu kwambiri za coaxial 75 ohms zomwe zimaphimba ma frequency range DC ~ 3GHz, zitha kufananizidwa ndi zolumikizira za BNC, F-type, ndi N-type. Kuchepetsa kwakukulu kumakhala kuyambira 1 mpaka 40dB. Zinthu zochepetsera zomwe zili ndi kulondola kwakukulu komanso mphamvu zambiri, khalidwe lodalirika, zinthu zambiri zimagwirizana ndi ROHS, zimatha kukwaniritsa zosowa zosiyanasiyana za makasitomala.

Nambala ya Gawo	Kuchuluka kwa nthawi (GHz, Min.)	Kuchuluka kwa nthawi (GHz, Max.)	Mphamvu (W)	Kuchepetsa mphamvu (dB)	Kulondola (dB)	VSWR (Zambiri)	Zolumikizira FNBNC	Nthawi yotsogolera (masabata)
Q7A0101	DC	1	1	1, 2, 4, 8, 10, 16, 20	± 0.5	1.1	F	2~4
Q7A0302	DC	3	2	1~30	± 0.6	1.25	F, N, BNC	2~4
Q7A0305	DC	3	5	1~30	± 0.6	1.25	F, N, BNC	2~4
Q7A0101-1	0.1	1	1	10, 20, 30, 40	-2	1.15	F, N	2~4