Raws li Kev Tshawb Fawb Txoj Kev Pom Zoo, Lub Tshuab Digital Scanner muaj tseeb cuam tshuam lub wireless ib puag ncig ntawm thaj chaw xeem.Nws yog siv nyob rau hauv CW (Nruam Nruam Nkoj) Kev Ntsuas Teeb Meem, Kev Ntsuas Kev Ua Haujlwm Zoo Tshaj Plaws, Thiab Kev Ua Haujlwm Zoo Tshaj Plaws Hauv Chav Ua Haujlwm rau Chav Fais Fab.
Cia wb mus saib Cov Kev Sib Tham thiab Cov Ntsiab Cai ntawm Lub Sijhawm Thiab Kev Sib Koom Tes ntawm Cov Scanner Digital Los cuam tshuam qhov kev tshawb nrhiav.
Qhov tseem ceeb Parameters ntawm Digital Scanner suav nrog Internal Attenuator Settings, RBW (Resolution Bandwidth) Chaw, Zaus Band Loj Chaw, thiab lwm yam.
Lub hauv paus ntsiab lus ntawm Internal RF Attenuator Teeb yog:
(1) Thaum Yuav Tsum Tshawb Nrhiav Cov Teeb Meem Me, Tus Nqi Attenuation yuav tsum tau teem kom tsawg raws li qhov ua tau, txwv tsis pub Lub Hom Phiaj Tshawb Fawb yuav raug nqos los ntawm lub suab nrov hauv qab ntawm lub tshuab ntsuas zaus thiab tsis tuaj yeem pom;
(2) Thaum Nws yog qhov tsim nyog txhawm rau txheeb xyuas cov teeb liab muaj zog, tus nqi attenuation yuav tsum tau teeb tsa siab raws li qhov ua tau, txwv tsis pub nws yuav ua rau tsis muaj kev cuam tshuam hauv Circuit Court ntawm lub tshuab luam ntawv, tso saib cov cim tsis raug, thiab txawm tias qhov tshwm sim puas tsuaj;
RBW Teem Cov Ntsiab Cai yog:
(1) Thaum Tshawb Nrhiav Cov Teeb Meem Narrowband, Tus Nqi RBW yuav tsum tau teeb tsa qis raws li qhov ua tau, txwv tsis pub Lub Hom Phiaj Tshawb Nrhiav yuav raug muab sib koom ua ke thiab tsis tuaj yeem sib txawv, thiab txawm tias yuav nqos los ntawm lub suab nrov ntawm lub tshuab luam ntawv thiab pom tsis meej;Tab sis yog tias tus nqi RBW qis dhau lawm, Lub Sijhawm cheb yuav ntev dhau lawm thiab lub zog kuaj yuav raug cuam tshuam;
(2) Kev txiav txim siab tias Bandwidth ntawm Ib qho RB ntawm GSM Teeb Pom Kev, PHS Cov Teeb Meem thiab TD-LTE yog ze rau 200K, thiab tag nrho cov kev ntsuas fais fab, Nws raug pom zoo tias RBW ntawm lub tshuab luam ntawv tau teem rau 200KHz.
Lub Hom Phiaj Loj Qhov Loj Qhov Loj yog:
(1) Los ntawm kev sib koom ua haujlwm lim, Teem Lub Sijhawm Band Scale rau LTE System Bandwidth Scale txhawm rau tshawb xyuas cov xwm txheej cuam tshuam hauv Band, xws li F-Band TDS In-Band Interference, GSM Thib Ob Harmonic Interference, Thiab DCS Intermodulation cuam tshuam.Nws yog qhov pom zoo kom txuas qhov sib thooj zaus Band lim thaum cheb qhov zaus.Piv txwv li, F-Band Scrambling Investigation yog teem rau 1880-1900MHz.Thaum cheb qhov zaus, txhua qhov chaw nres nkoj ntawm lub kav hlau txais xov tuaj yeem raug txiav ntawm RRU, txuas lub lim, thiab txuas lub lim tso tawm chaw nres nkoj nrog lub tshuab ntsuas zaus;
(2) cheem lub Upper thiab qis dua nyob ib sab Bands ntawm lub hom phiaj zaus band los tshawb xyuas seb puas muaj cov kab ke sib txawv ntawm cov haujlwm sib txawv ntawm sub-bands.Piv txwv li, thaum tshawb xyuas qhov cuam tshuam ntawm F-Band, koj tuaj yeem teeb tsa Sweep Frequency Band Scale 1805MHz-1920MHz, Thiab Tshawb Fawb 1805-1920MHz cais.Raws li Cov Teeb Meem thiab Kev Siv Hluav Taws Xob Ntawm 1830MHz, 1830-1850MHz, 1850-1880MHz, Thiab 1900-1920MHz Frequency Bands, Tshawb Fawb Lub Hwj Chim Ntawm DCS Raws Li Kev cuam tshuam Waveform los pab txiav txim seb puas yuav muaj DCS spurious thiab cuam tshuam tag nrho;
Kev sib txuas cov xwm txheej cuam tshuam hauv pawg thiab cov kev cuam tshuam sab nraud ntawm sab sauv thiab qis qis uas nyob ib sab hauv ob kauj ruam saum toj no, nws muaj peev xwm txheeb xyuas ntau qhov cuam tshuam hnyav hauv qhov xwm txheej ntxhov siab qhov twg ntau qhov cuam tshuam tau tshwm sim.
Post lub sij hawm: Feb-06-2021
