ukurasa_bango (1)
ukurasa_bango (2)
ukurasa_bango (3)
ukurasa_bango (4)
ukurasa_bango (5)
  • Bendi pana ya Kelele ya Chini, Ingizo la Chini VSWR Zuia Vigeuza Chini (LNBs)
  • Bendi pana ya Kelele ya Chini, Ingizo la Chini VSWR Zuia Vigeuza Chini (LNBs)
  • Bendi pana ya Kelele ya Chini, Ingizo la Chini VSWR Zuia Vigeuza Chini (LNBs)
  • Bendi pana ya Kelele ya Chini, Ingizo la Chini VSWR Zuia Vigeuza Chini (LNBs)
  • Bendi pana ya Kelele ya Chini, Ingizo la Chini VSWR Zuia Vigeuza Chini (LNBs)

    Vipengele:

    • Bendi pana
    • Joto la chini la Kelele
    • Ingizo la chini VSWR

    Maombi:

    • Kituo kisichobadilika
    • Kituo cha rununu
    • Mtihani wa Maabara

    Zuia Vigeuzi vya chini (LNBs)

    Katika mifumo ya mawasiliano, ili kuwezesha uwasilishaji wa mawimbi na kufikia utumiaji tena wa chaneli, mzunguko wa mawimbi yanayopitishwa ni wa juu sana, hivyo ubadilishaji wa mawimbi ya ishara ni kipengele muhimu cha utafiti wa mfumo wa mawasiliano. Kulingana na hali kabla na baada ya ubadilishaji wa masafa, inaweza kugawanywa katika ubadilishaji wa chini (kupunguza masafa) na ubadilishaji wa juu (ongezeko la masafa).
    Katika mpokeaji, ikiwa ishara ya mzunguko wa kati iliyopatikana baada ya kuchanganya ni ya chini kuliko ishara ya awali, basi njia hii ya kuchanganya inaitwa block downconverters (LNBs).
    Njia ya kuzuia downconverters ni kuzidisha ishara iliyopokelewa na ishara ya oscillator ya ndani inayozalishwa na oscillator ya ndani, na kisha kupata ishara iliyobadilishwa kupitia chujio cha chini. Ishara mbili zilizozidishwa zinaweza kugawanywa katika kuchanganya halisi na kuchanganya ngumu kupitia uwakilishi halisi au tata.
    Madhumuni ya vibadilishaji vibadilishaji vya kuzuia ni kupunguza mzunguko wa mtoa huduma wa mawimbi au kuondoa moja kwa moja masafa ya mtoa huduma ili kupata mawimbi ya bendi ya msingi. Kwa sababu ya mzunguko wake rahisi na gharama ya chini, njia ya ubadilishaji wa chini hutumiwa sana katika vifaa vya kiraia na vifaa vya kijeshi na mahitaji ya chini ya utendaji.

    Maombi:

    1. Televisheni ya Satelaiti: LNB ni sehemu muhimu katika mifumo ya kupokea TV ya setilaiti. Zimewekwa kwenye kitovu cha antena ya satelaiti (paraboloid au sahani), hupokea mawimbi ya TV inayopitishwa na setilaiti, na kuibadilisha kuwa mawimbi ya masafa ya kati ambayo yanaweza kuchakatwa na mpokeaji.
    2. Mtandao wa Satelaiti: Katika mifumo ya mtandao ya satelaiti, LNB hutumika kupokea data ya mtandao inayopitishwa kutoka kwa satelaiti. Kifaa cha mtumiaji hupokea data kupitia LNB na kuichambua na kuichakata kupitia modemu.
    3. Mawasiliano ya Satelaiti: LNB hutumika sana katika mifumo mbalimbali ya mawasiliano ya satelaiti, zikiwemo simu za satelaiti, matangazo ya satelaiti, upitishaji wa data za satelaiti n.k. Zinasaidia kupokea na kuchakata aina mbalimbali za mawimbi ya mawasiliano yanayopitishwa kutoka kwa satelaiti.
    4. Uchunguzi wa Dunia na Kuhisi kwa Mbali: Katika baadhi ya programu za uchunguzi wa Dunia na kutambua kwa mbali, LNB hutumiwa kupokea data ya kutambua kwa mbali inayopitishwa kutoka kwa satelaiti. Data hizi zinaweza kutumika katika ufuatiliaji wa hali ya hewa, ufuatiliaji wa mazingira, onyo la maafa na nyanja zingine.
    Kwa muhtasari, LNB zina jukumu muhimu katika mifumo ya kisasa ya mawasiliano ya satelaiti na hutumiwa sana katika utangazaji wa televisheni, ufikiaji wa mtandao, mawasiliano ya data na nyanja mbalimbali za kitaaluma.

    Qualwavehutoa aina mbalimbali za Block Downconverters (LNBs) katika S~Ka-Band, yenye halijoto ya kelele ya 45~240K. Kusimamishwa kwa aina tofauti ili kukidhi mahitaji ya wateja.

    img_08
    img_08
    LNBs
    Nambari ya Sehemu Bendi Ingizo la RF Frequency (GHz) Mzunguko wa LO (GHz) Pato IF Frequency (MHz) Faida (dB) NT(K) IF Kiunganishi VSWR (Upeo wa juu) Muda wa Kuongoza (Wiki)
    QLB-2200-2700-60-50 S 2.2~2.7 3.65 950~1450 60 50 N, SMA, F 2.0/1.5 2~8
    QLB-3400-4200-60-40 C 3.4~4.2 5.15 950-1750 60 40 N, SMA, F 1.35/1.5 2~8
    QLB-3400-4200-60-45 C 3.4~4.2 5.15 950-1750 60 45 N, SMA, F 2.5/2.0 2~8
    QLB-3400-4800-60-75 C 3.4~4.8 5.15 au 5.75 950~1750 au 950~1550 60 75 N, SMA, F 1.5/1.5 2~8
    QLB-3625-4200-60-45 C 3.625~4.2 5.15 950~1520 60 45 N, SMA, F 2.5/2.0 2~8
    QLB-3700-4200-60-40 C 3.7~4.2 5.15 950~1450 60 40 N, SMA, F 1.35/1.5 2~8
    QLB-3700-4200-60-45 C 3.7~4.2 5.15 950~1450 60 45 N, SMA, F 2.5/2.0 2~8
    QLB-4500-4800-60-45 C 4.5~4.8 5.76 960~1260 60 45 N, SMA, F 2.5/2.0 2~8
    QLB-7250-7750-60-75 X 7.25~7.75 6.3 950~1450 60 75 N, SMA, F 1.5/2.0 2~8
    QLB-7750-8500-60-75-2 X 7.75~8.5 6.95 800~1550 60 75 N, SMA, F 1.5/2.0 2~8
    QLB-7750-8500-60-75 X 7.75~8.5 6.8 950-1700 60 75 N, SMA, F 1.5/2.0 2~8
    QLB-10700-11700-60-65 Ku 10.7~11.7 9.75 950-1950 60 65 N, SMA, F 2.5/2.0 2~8
    QLB-10700-11700-60-65-2 Ku 10.7~11.7 9.75 950-1950 60 65 N, SMA, F 2.5/2.0 2~8
    QLB-10700-12750-60-65 Ku 10.7~12.75 9.75 au 10.6 950~1950 au 1100~2150 60 65 N, SMA, F 2.5/2.0 2~8
    QLB-10700-12750-60-65-2 Ku 10.7~12.75 9.75 au 10.75 950-2000 60 65 N, SMA, F 2.5/2.0 2~8
    QLB-10700-12750-60-80 Ku 10.7~12.75 9.75 au 10.25 au 10.75 au 11.30 940~1500 au 950~1450 60 80 N, SMA, F 2.5/2.0 2~8
    QLB-10700-12750-60-80-2 Ku 10.7~12.75 9.75 au 10.75 au 11.30 950~1950 au 940~1500
    au 950 ~ 1450
    60 80 N, SMA, F 2.5/2.0 2~8
    QLB-10700-12750-60-90 Ku 10.7~12.75 9.75 950~3000 60 90 N, SMA, F 1.35/1.5 2~8
    QLB-10700-12750-60-90-1 Ku 10.7~12.75 9.75 na 13.7 950~1950 na 950~2000 60 90 N, SMA, F 1.35/1.5 2~8
    QLB-10950-11700-60-65 Ku 10.95~11.7 10 950-1700 60 65 N, SMA, F 2.5/2.0 2~8
    QLB-10950-12750-60-65 Ku 10.95~12.75 10 au 10.75 950~1700 au 950~2000 60 65 N, SMA, F 2.5/2.0 2~8
    QLB-10950-12750-60-80 Ku 10.95~12.75 10 au 10.5 au 10.75 au 11.25 940~1500 au 950~1450 au 950~1500 60 80 N, SMA, F 2.5/2.0 2~8
    QLB-10950-12750-60-80-2 Ku 10.95~12.75 10 au 10.75 au 11.30 950~1700 au 940~1500 au 950~1450 60 80 N, SMA, F 2.5/2.0 2~8
    QLB-10950-12750-60-90 Ku 10.95~12.75 10 950~2750 60 90 N, SMA, F 1.35/1.5 2~8
    QLB-10950-12750-60-90-1 Ku 10.95~12.75 10 na 13.7 950~1700 na 950~2000 60 90 N, SMA, F 1.35/1.5 2~8
    QLB-11450-12750-60-70 Ku 11.45~11.7 na 12.25~12.75 9 2450~2700 na 3250~3750 60 70 N, SMA, F 2.5/2.0 2~8
    QLB-11700-12200-60-65 Ku 11.7~12.2 10.75 950~1450 60 65 N, SMA, F 2.5/2.0 2~8
    QLB-11700-12200-60-65-2 Ku 11.7~12.2 10.75 950~1450 60 65 N, SMA, F 2.5/2.0 2~8
    QLB-11700-12750-60-65 Ku 11.7~12.75 10.75 950-2000 60 65 N, SMA, F 2.5/2.0 2~8
    QLB-11700-12750-60-80 Ku 11.7~12.75 10.75 950-2000 60 80 N, SMA, F 2.5/2.0 2~8
    QLB-12250-12750-60-65 Ku 12.25~12.75 11.3 950~1450 60 65 N, SMA, F 2.5/2.0 2~8
    QLB-12250-12750-60-65-2 Ku 12.25~12.75 11.3 950~1450 60 65 N, SMA, F 2.5/2.0 2~8
    QLB-17200-19200-60-150-1 Ka 17.2~19.2 16.25 na 20.15 950-1950 60 150 N, SMA, F 2.5/2.0 2~8
    QLB-17200-21200-60-170 Ka 17.2~21.2 16.25 au 17.25 au 18.25 au 19.25 950-1950 60 170 N, SMA, F 1.35/1.5 2~8
    QLB-17200-21200-60-170-1 Ka 17.2~21.2 16.25 na 17.25 na 21.15 na 22.15 950~1950 na 950~1950 60 170 N, SMA, F 1.35/1.5 2~8
    QLB-17200-22200-60-240 Ka 17.2~22.2 16.25 au 17.25 au 18.25 au 19.25 au 20.25 950-1950 60 240 N, SMA, F 1.5/2.0 2~8
    QLB-17300-20200-60-150 Ka 17.3~20.2 16.35 au 17.35 au 18.35 950~1950 au 950~1850 60 150 N, SMA, F 2.5/2.0 2~8
    QLB-17300-20200-60-150-2 Ka 17.3~20.2 16.35 au 17.35 au 18.35 950~1950 au 950~1850 60 150 N, SMA, F 2.5/2.0 2~8
    QLB-17300-22300-60-170 Ka 17.3~22.3 16.35 au 17.60 au 18.85 au 20.10 950~2200 60 170 N, SMA, F 1.35/1.5 2~8
    QLB-17300-22300-60-170-1 Ka 17.3~22.3 16.35/22 au 17.6/22 au 16.35/23.25 au 17.6/23.25 950~2200 na 950~2200 60 170 N, SMA, F 1.35/1.5 2~8
    QLB-17700-21200-60-170 Ka 17.7~21.2 16.75 au 17.25 au 18.25 au 19.25 950~1450 au 950~1950 60 170 N, SMA, F 1.35/1.5 2~8
    QLB-17700-21200-60-170-1 Ka 17.7~21.2 16.75/21.15 au 17.75/21.15 au 16.75/22.15 au 17.75/22.15 950~1950 na 950~1950 60 170 N, SMA, F 1.35/1.5 2~8
    QLB-18200-20200-60-150 Ka 18.2~20.2 17.25 au 18.25 950-1950 60 150 N, SMA, F 2.5/2.0 2~8
    QLB-18200-20200-60-150-1 Ka 18.2~20.2 17.25 na 18.25 950-1950 60 150 N, SMA, F 2.5/2.0 2~8
    QLB-18200-21200-60-150 Ka 18.2~21.2 17.25 au 18.25 au 19.25 950-1950 60 150 N, SMA, F 2.5/2.0 2~8
    QLB-18200-21200-60-150-2 Ka 18.2~21.2 17.25 au 18.25 au 19.25 950-1950 60 150 N, SMA, F 2.5/2.0 2~8
    QLB-19200-21200-60-150 Ka 19.2~21.2 18.25 au 19.25 950-1950 60 150 N, SMA, F 2.5/2.0 2~8
    QLB-19200-21200-60-150-1 Ka 19.2~21.2 21.15 na 22.15 950-1950 60 150 N, SMA, F 2.5/2.0 2~8
    QLB-19600-21200-60-150 Ka 19.6~21.2 17.4 2200~3800 60 150 N, SMA, F 2.5/2.0 2~8
    QLB-20200-22200-60-150 Ka 20.2~22.2 19.25 au 20.25 950-1950 60 150 N, SMA, F 2.5/2.0 2~8
    QLB-20200-22200-60-150-1 Ka 20.2~22.2 19.25 na 23.15 950-1950 60 150 N, SMA, F 2.5/2.0 2~8
    Anti 5G Interference LNBs
    Nambari ya Sehemu Bendi Ingizo la RF Frequency (GHz) Mzunguko wa LO (GHz) Pato IF Frequency (MHz) Faida (dB) NT(K) IF Kiunganishi VSWR (Upeo wa juu) Muda wa Kuongoza (Wiki)
    QLB-3625-4200-60-50 C 3.625~4.2 - 950~1525 60 50 N, SMA, F 2.5/2.0 2~8
    QLB-3700-4200-60-50 C 3.7~4.2 - 950~1450 60 50 N, SMA, F 2.5/2.0 2~8
    QLB-3700-4200-60-45-2 C 3.7~4.2 - 950~1450 60 45 N, SMA, F 2.5/2.0 2~8
    QLB-3800-4200-60-50 C 3.8~4.2 - 950~1350 60 50 N, SMA, F 2.5/2.0 2~8
    QLB-3800-4200-60-45 C 3.8~4.2 - 950~1350 60 45 N, SMA, F 2.5/2.0 2~8

    BIDHAA ZINAZOPENDEKEZWA

    • Mabadiliko ya Awamu Yanayodhibitiwa na Voltage

      Mabadiliko ya Awamu Yanayodhibitiwa na Voltage

    • Dielectric Resonantor Voltage Controlled Oscillator (Drvco)

      Dielectric Resonantor Voltage Controlled Oscill...

    • RF WR-430 hadi WR-10 BroadBand Test Systems Swichi za Waveguide

      RF WR-430 hadi WR-10 BroadBand Test Systems Waveg...

    • Vidhibiti Vidhibiti vya Voltage (VCO)

      Vidhibiti Vidhibiti vya Voltage (VCO)

    • RF BroadBand EMC Amplifiers za Kelele za Chini

      RF BroadBand EMC Amplifiers za Kelele za Chini

    • Vibadilishaji vya Awamu vinavyodhibitiwa na Dijiti

      Vibadilishaji vya Awamu vinavyodhibitiwa na Dijiti