d.. 0 o3 n
TRANSCRIPT
N94-1_674
_J
Zm
¢rr¢.
D.ZD.O3
_z
D.0 >-EEujD. >
I-- uJOo
iii
E
ErM
(.-
im
D..0
n'<-Oz
Z
<
0<
0")O)
(-
-I- EC) 0w_- o
< '_
5 _o8o
PRtECEDI'N_ PAGE BLANK NOT FILMED 247
https://ntrs.nasa.gov/search.jsp?R=19940010201 2020-04-06T15:07:55+00:00Z
ILlZm
0
• • • • • • •
248
a.lll
249
250
APT FUNCTIONAL SUBSYSTEMS
Receivers
20, 27 GHzReceiver
IF
lJlDRX
AllSections
<
DACS
CC
PS
Radiometers
20, 27 GHzRadiometer
Antenna 1
RF
RAD
DACS
_j_ Env.
Control
All
< I
CC
Weather
P T H RRI//tf
t DACS _
[ cc
PS
"E
funcl .drw04/09/93
251
EL_
1
0
.C13.1
e"ll
Em._
c-o
0L_
a.
0
6Oa-00
Z
i
i
I
o
X0
0
a-
I/
//
.! /
• /
Q o o
1
o,m
C0
"0
c)
252
UJO..J_JW_
NO(Z"
253
254
RF Enclosure
Voo, HotL
_ 13c
Flexible(15,) Flan_g_ d
f
a) LO drive (20, 27) RG58 w/SMA-male.
b) 70 MHz IF (20, 27) Microflex 150 w/SMA-male.
c) RF power cable, 3 conductor twisted w/4 pin molex.
d) RF control cable w/DB25 male connector.
e) RF control cable w/DB9 male connector.
f) RF temperature control cable assy (two cables)
w/DB-15 profile hybrid connector.
conduiLdrw06/01/93
Figure 3.1-2. Conduit/Cable assembly between RF and Receiver Enclosures.
Chapter 3 Page 5 1.0
255
ACTS PROPAGATION TERMINAL
A2
ANTENNA
20.195 G V
27.5 G V L__
__F-- Diplexer/OMm
20.185G _V- I _cl 81 _ _ R1C2 27.5 G ---
$2
LO2 LO1
20RF _)f2 fl_) 27RF A1BLOCK BLOCK
RE.En_l.osure.... .7..o...M......................................................... .7..o.._M........................Rcvr Enclosure
P2 SPLIT SPLIT
IF CNVTRBEACON RADIOMETER RADIOMETER BEACON
IF CNVTR
P1
-r
_ 455K ' _ _ 455K'_
DIGITAL DIGITALRECE VER _ DACS _ RECEIVER/
._*.o°w ................................ . .................. 1_ ...................... • ...................................
Indoors T
MODEM _ PC _ p,oto.ar.O6/02/92
256
257
ACTS
Feed Horn(no antenna)
APT APTPrototype Digital
IF Hardware Receiver
HostComputer
Microwave absorber was placed over thebeacon transmitter payload to reduce thebeacon signal strengths to levels compatiblewith the APT system
0
-10
-2O
-30"O
k.
a)-40
0
-5O
-60
-70-I O0 -80 -60 -4.0 -20 0 20 4.0 60 80 1OO
Frequency Away From Carrier (kHz)
32768-point spectrumof the ACTS 20 GHz beacon in Digital PCM
Telemetry Mode.
0
-10
-2O
m -30
L
ILl]= -4.00
Q.
-50
-60
-70 ................-I00 -80 -60 -4.0 -20 0 20 4.0 60 80 I00
Frequency Away From Carrier (kHz)
32768-point spectrumof the ACTS 20 GI-Iz beacon in PCM Direct
Mode. 2se
,vmq
[,.,,, f
C
tv'l
I I I I I I I
(_[P) _Od
rO
3'¢xl
o
259
4.a
<
©
I I I I I I I
(tip) 1_0d
0
L_
0
T¢xl
_D
0
260
_0d
>=
i
I, I
(s;loN) JD_Bwo!peu
__ _ _ o oo __oo o
: : ', _ G_
i i i ]i J |
.... _, : : : \\\
: : : -_ £££¢3_
: ' : : .._ ==xxxx: i i i xxxx: : : : . )¢XXX' ' i ! XXXX_
' , : : I
, ; ; , , _¢¢_
' ' !'.... )-
' _XXXX, , , _ . XXXX_.. ! _xxxx
i !
, _ _!
I I I I
I I I I "
, : : : : :,, : : : : :
, , , , , , _: : : : : : : ..
'''' I'''' I'''' i'''' I'''' I''" I'*'' I'''' '''' I'''' L_
+ t I I I I I I
(SP) uooee8
P, p, _= L
V V .M .M
C r £ £0 0 0 0O U "_ '"_
_mm
261
Z0 -_-
t-
z°__
rnc-
0
rZ
00
0
t-
0
262
m
,,-__.0
°
u.
(/)p-0,¢
0
b
C0
f,,.03
CCo "(3
0D
_ CC _o _
0 _
o69C
0
0
o0
'e
<ii]
0
O_(.q_)0
eO.
ud
263
CO
_o
U')
r..,.
_>,D
n'-Q0
c-_,= .C
C 0
.>_ (_-_ O_ co O.0 c "_ J "7
_- D 03 rJ3
264
265
