Karatteristiċi:
- Banda Wiesgħa
- Temperatura Baxxa tal-Ħoss
- VSWR ta 'Input Baxx
Fis-sistemi ta 'komunikazzjoni, sabiex tiġi ffaċilitata t-trażmissjoni tas-sinjali u jinkiseb użu mill-ġdid tal-kanal, il-frekwenza tas-sinjali trażmessi hija għolja ħafna, għalhekk il-konverżjoni tal-frekwenza tas-sinjali hija aspett importanti tar-riċerka tas-sistema ta' komunikazzjoni. Skont is-sitwazzjoni qabel u wara l-konverżjoni tal-frekwenza, tista 'tinqasam f'konverżjoni 'l isfel (tnaqqis tal-frekwenza) u konverżjoni 'l fuq (żieda fil-frekwenza).
Fir-riċevitur, jekk is-sinjal tal-frekwenza intermedja miksub wara t-taħlit ikun aktar baxx mis-sinjal oriġinali, allura dan il-metodu ta 'taħlit jissejjaħ block downconverters (LNBs).
Il-metodu ta 'blokk downconverters huwa li timmultiplika s-sinjal riċevut bis-sinjal ta' l-oxxillatur lokali ġġenerat mill-oxxillatur lokali, u mbagħad jikseb is-sinjal konvertit permezz ta 'filtru low-pass. Żewġ sinjali multiplikati jistgħu jinqasmu f'taħlit reali u taħlit kumpless permezz ta 'rappreżentazzjoni reali jew kumplessa.
L-għan tal-blokk downconverters huwa li tnaqqas il-frekwenza tal-ġarr tas-sinjal jew tneħħi direttament il-frekwenza tal-ġarr biex tikseb is-sinjal tal-banda bażi. Minħabba ċ-ċirkwit sempliċi u l-ispiża baxxa tiegħu, il-metodu ta 'konverżjoni 'l isfel jintuża ħafna f'tagħmir ċivili u tagħmir militari b'rekwiżiti ta' prestazzjoni baxxa.
1. Televiżjoni bis-satellita: LNBs huma komponenti ewlenin fis-sistemi ta 'riċezzjoni tat-televiżjoni bis-satellita. Huma installati fil-punt fokali ta 'antenna tas-satellita (paraboloid jew dixx), jirċievu s-sinjal tat-TV trażmess mis-satellita, u jaqilbuh f'sinjal ta' frekwenza intermedja li jista 'jiġi pproċessat mir-riċevitur.
2. Internet bis-satellita: Fis-sistemi tal-Internet bis-satellita, LNBs jintużaw biex jirċievu data tal-Internet trażmessa mis-satelliti. It-tagħmir tal-utent jirċievi d-dejta permezz tal-LNB u jiddekowdja u jipproċessaha permezz tal-modem.
3. Komunikazzjonijiet bis-satellita: LNBs jintużaw ħafna f'diversi sistemi ta 'komunikazzjoni bis-satellita, inklużi telefowns bis-satellita, xandiriet bis-satellita, trasmissjoni ta' data bis-satellita, eċċ. Jgħinu biex jirċievu u jipproċessaw diversi tipi ta 'sinjali ta' komunikazzjoni trażmessi mis-satelliti.
4. Osservazzjoni tad-Dinja u Remote Sensing: F'xi applikazzjonijiet ta 'osservazzjoni tad-Dinja u remote sensing, LNBs jintużaw biex jirċievu data ta' remote sensing trażmessa mis-satelliti. Din id-dejta tista 'tintuża fil-monitoraġġ meteoroloġiku, monitoraġġ ambjentali, twissija ta' diżastru u oqsma oħra.
Fil-qosor, LNBs għandhom rwol vitali fis-sistemi moderni ta 'komunikazzjoni bis-satellita u huma użati ħafna fix-xandir televiżiv, aċċess għall-Internet, komunikazzjonijiet tad-dejta u oqsma professjonali varji.
Qualwavejipprovdi diversi tipi ta 'Blokk Downconverters (LNBs) fis-S ~ Ka-Band, b'temperatura tal-ħoss ta' 45 ~ 240K. It-terminazzjonijiet b'tip differenti biex jissodisfaw il-ħtiġijiet tal-klijenti.
LNBs | |||||||||
---|---|---|---|---|---|---|---|---|---|
Numru tal-Parti | Banda | Frekwenza RF tad-dħul (GHz) | Frekwenza LO (GHz) | Frekwenza IF tal-ħruġ (MHz) | Qligħ (dB) | NT(K) | IF Konnettur | VSWR (Mass.) | Ħin ta' Lead (Ġimgħat) |
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 jew 5.75 | 950 ~ 1750 jew 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 jew 10.6 | 950 ~ 1950 jew 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 jew 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 jew 10.25 jew 10.75 jew 11.30 | 940 ~ 1500 jew 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 jew 10.75 jew 11.30 | 950 ~ 1950 jew 940 ~ 1500 jew 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 u 13.7 | 950 ~ 1950 u 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 jew 10.75 | 950 ~ 1700 jew 950 ~ 2000 | 60 | 65 | N, SMA, F | 2.5/2.0 | 2~8 |
QLB-10950-12750-60-80 | Ku | 10.95 ~ 12.75 | 10 jew 10.5 jew 10.75 jew 11.25 | 940~1500 jew 950~1450 jew 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 jew 10.75 jew 11.30 | 950~1700 jew 940~1500 jew 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 u 13.7 | 950 ~ 1700 u 950 ~ 2000 | 60 | 90 | N, SMA, F | 1.35/1.5 | 2~8 |
QLB-11450-12750-60-70 | Ku | 11.45 ~ 11.7 u 12.25 ~ 12.75 | 9 | 2450 ~ 2700 u 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 u 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 jew 17.25 jew 18.25 jew 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 u 17.25 u 21.15 u 22.15 | 950 ~ 1950 u 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 jew 17.25 jew 18.25 jew 19.25 jew 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 jew 17.35 jew 18.35 | 950 ~ 1950 jew 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 jew 17.35 jew 18.35 | 950 ~ 1950 jew 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 jew 17.60 jew 18.85 jew 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 jew 17.6/22 jew 16.35/23.25 jew 17.6/23.25 | 950 ~ 2200 u 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 jew 17.25 jew 18.25 jew 19.25 | 950 ~ 1450 jew 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 jew 17.75/21.15 jew 16.75/22.15 jew 17.75/22.15 | 950 ~ 1950 u 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 jew 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 u 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 jew 18.25 jew 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 jew 18.25 jew 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 jew 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 u 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 jew 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 u 23.15 | 950~1950 | 60 | 150 | N, SMA, F | 2.5/2.0 | 2~8 |
LNBs kontra l-Interferenza 5G | |||||||||
Numru tal-Parti | Banda | Frekwenza RF tad-dħul (GHz) | Frekwenza LO (GHz) | Frekwenza IF tal-ħruġ (MHz) | Qligħ (dB) | NT(K) | IF Konnettur | VSWR (Mass.) | Ħin ta' Lead (Ġimgħat) |
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 |