Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/~phil/mbeam/iflo/alfa_planb.ps Дата изменения: Sat Apr 5 19:18:08 2008 Дата индексирования: Sat Mar 1 04:33:32 2014 Кодировка:

Page
1,
3/3/2004,
9:46
AM
ALFA
Receiver
(RF
through
fiber)
System
Temperature
and
Power
Levels
toWAPP
Conversion
to
275MHz
By
:
Bill
Sisk
Component
Noise
Noise
Gain
BW
BW
Tsys
Total
Power
Pno
Po1
IP3
Figure
Temp
Device
Min
Gain
Density
dB
K
dB
MHz
MHz
K
dB
dBm/
dBm
dBm
dBm
MHz
26.00
LNA
3
40
2000
2,000.0
29.00
40
­84.0
­51.0
1225­1525MHz
BPF
0.5
35
­0.5
300
300.0
29.00
39.5
­84.5
­59.7
Post
Amp1
2.5
226
36
2500
300.0
29.03
75.5
­48.5
­23.7
20
35
Fiber
Optic
Link
44
7,284,181
­3.5
2000
300.0
29.23
72
­51.9
­27.2
>10
26
Fiber
Link
AC231
Mixer
7
1,163
­7
1500
300.0
29.23
65
­58.9
­34.2
MaCom
MDC­169
3dB
3
289
­3
1500
300.0
29.23
62
­61.9
­37.2
LPF
1
75
­1
500
300.0
29.23
61
­62.9
­38.2
IFAmp
3.6
374
16
500
300.0
29.23
77
­46.9
­22.2
Power
Splitter
3.5
359
­3.5
500
300.0
29.23
73.5
­50.4
­25.7
Start
of
WAPP
Cable
Loss
0.5
35
­0.5
500
300.0
29.23
73
­50.9
­26.2
Switch
1
1.5
120
­1.5
500
300.0
29.23
71.5
­52.4
­27.7
20
MCL
ZASWA­2­50DR
15dB
Step
Atten.
14
6,994
­14
500
300.0
29.24
57.5
­66.4
­41.7
15
MCL
ZSAT­31R5
7dB
Loss
WAPP
Amp
1
3.5
359
20
500
300.0
29.24
77.5
­46.4
­21.7
16
30
MCL
ZFL500HLN
Switch
2
1.5
120
­1.5
500
300.0
29.24
76
­47.9
­23.2
20
MCL
ZASWA­2­50DR
250­300MHz
BPF
1
75
­1
50
50.0
29.24
75
­48.9
­32.0
FSY
BE275­46­8SS
6dB
6
865
­6
500
50.0
29.24
69
­54.9
­38.0
WAPP
Amp
2
3.5
359
20
500
50.0
29.24
89
­34.9
­18.0
16
30
MCL
ZFL500HLN