pE rnr vr0N v0 ruvfN n$N rf rnuAr v su hdi tidp: * Hay thi& l4p bidu thrlc tinh hQ sd ttrudcn d+i diQn ttrd ttri chrla c6 hdi tidp K vdi hQ sd.. khudch d4i itiQn thd khi c6 m4ch trdi tid
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v su hdi tidp:
* Hay thi& l4p bidu thrlc tinh hQ sd ttrudcn d+i diQn ttrd ttri chrla c6 hdi tidp K vdi hQ sd .
khudch d4i itiQn thd khi c6 m4ch trdi tidp cfia mQt m4ch khudch tlqi diQn thd K'.
* theo anh titti), sU trdi ti6p c6 lgi hay c6 h4i?
* Khi trang bi 0m thanh cho mQt hQi tn/dng, cho bidt v.hi nguy€n tic co bdn dd kh6ng 14o
n€n tidng hri ldn phdt ra 6 loa
, * Cho bidt hinh d4ng cfia dudng cong bi6u di6n HQ sd khudch tt4i diQn thd K theo tdn sd f
(ho{c log fl cta mQt m4ch khudch itai Gi6i thich hinh dang cria iludng bidu di6n nhy .
cassette, m4ch khudch tlai nio cdn c6 dii th6ng rQng hon, t4i sao?
* Cho Uidt *Ot vii phrrong phdp md rQng dii th6ng cho mQt m4ch khudch rlai tliQn thd
IIV Cdc blng tdn cfia s6ng itiQn tt:
* Liet ke ddy dri c6c bing tAn cria s6ng tliQn tU , dii tdn s6'cria n6 vd cho bidt pham vi sf
dqng cdc bnng dn niy trong viQc truydn thOng tin blng vO tuydn tliQn
* Bing tdn nho s6ng diQn til c6 il{c tinh phin x4,d tdng iliQn ly (tdng ion) b6n ngodi ctng
bdu khi quy6h bria TrdiDdc
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x Dai.ph6t thanh TP HCM phdt s6ng tr6n blng tAn ndo dd c6c mdy thu thanh d cric tinh ' xa rhu duqc? d ttguy TP HCM mdy thu c6 thu drrgc s6ng niy kh6ng, giii thich tai sao?
IV/ Didu chdtdn sd(rvO:
* Cho bidt nguy6n tdc cria sqr didu chd tAn sd.
* Thidt l{p bidu thr?c cria sr/ di€u c}rdtdn sd s6ng cao tAn u(t) ndu chgn:
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* C6 nh$n x6t gl vd phd tdn sd cria phrrong thrlc didu chd ndy.
* T?i sao phrrdng thric didu chd tdn sd (FlyI) c6 nhidu rru didm hdn so vdi phrrong thtl'c
didu chdbi€n ttO (AM).
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