4-Laborotoriya mashg’uloti. Radioreleli aloqa liniyasining energetik xarakteristikalarini tadqiq qilish Ishdan

=0.0007

4.10 Aks ettirish zonasining kordinatalari quyida keltirilgan formula orqali xisoblanadi:
=0.0174
4.11.So‘nish zaxirasi:
^Rprm ^{=12.426 dBVt- qabul qilgich kirishidagi kuchlanish;} L_ATM=L_o+A_a=133.74 +0,29= 134,03 dB -kuchsizlanish kattaligi; ^F=RPRM^-RPRMreal^{=12.376-2.426=9.95dB-issiqlikdagi so‘nish zaxirasi;}
4.1-jadval.
Topshiriq bajarish uchun variantlar

1	5.8	20	1.6	142	0.95
2	3	30	3	140	0.53
3	6	15	5	125	0.235
4	12	18	3.2	130	0.345
5	28	8	1.8	124	1.2
6	4.3	16	1.5	115	1.33
7	25	35	2.6	110	1.8
8	7.1	22	3.9	129	0.435
9	6	17	4	105	0.6
10	8	40	4.1	107	0.78
11	11	32	5.2	80	1.5
12	14	38	6.3	95	1.25
13	5	22	7	108	1.36
14	9.2	25	1.8	138	1.28
15	5.6	18	2.4	145	0.84
16	21	14	3.8	156	0.64
17	18	10	4.5	160	0.72
18	30	34	4	128	0.91
19	26	20	3	120	0.93
20	16	38	2	113	0.51
21	7	19	6.9	130	0.38
22	12.9	17	7.5	124	0.75
23	19	22	6.4	114	0.78
24	32	34	6	109	1.1
25	13	21	7	100	1.3
26	3.7	15	3	75	1.15
27	3.5	12	2	109	0.45

Hisobot tarkibi

1. 
   Ishdan maqsad.
   
2. 
   Topshiriq.
   
3. 
   Hisoblash natijalari.
   
4. 
   Xulosa.
   

Nazorat savollari

1. 
   Raqamli RRLlarning tasniflanishi va qo‘llanilishi sohalarini keltiring.
   
2. 
   Bir yo‘nalishli radioreleli aloqaning tuzilish sxemasini keltiring va tushuntiring.
   
3. 
   RRL oxirgi, oraliq va tugun stansiyalarining tuzilish sxemalarini keltiring va tushuntiring.
   
4. 
   RRLda Frenel zonasini tushuntiring.
   
5. 
   Radio signallarda kuchsizlanish va sunish xarakteristikalarini tushuntiring.