multichannel split system mt-mr technical manualusermanuals~mt-mr-(spm... · 2016. 7. 6. · mr/18...
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Page 1 of 58
Multichannel Split
System
MT-MR
Technical Manual
Page 2 of 58
Rev. Date Origin
Version 1.0 16-11-07 Elber S.r.l.
© 2007 ELBER S.r.l. - Microwave Radio Links
Address: Via Selaschi, 42 - 16040 Leivi (GE)
P.I.: 03700020104 - C.F.: 01070700107
Tel.: 039-0185-351333 r.a.
Fax: 039-0185-351300
E-mail: [email protected]
Page 3 of 58
0. Summary
0. SUMMARY ............................................................................................................................................ 3
1. GENERAL DESCRIPTION ............................................................................................................. 4
1.1. TECHNICAL SPECIFICATIONS........................................................................................................ 5 1.2. TRANSMITTER ................................................................................................................................... 5 1.2.1. TRANSMITTING RF HEAD CONTROL UNIT TCU .............................................................................. 5 1.2.2. TRANSMITTING RF HEAD MT............................................................................................................ 5
1.3. RECEIVER ........................................................................................................................................... 6 1.3.1. RECEIVING RF HEAD CONTROL UNIT RCU..................................................................................... 6 1.3.2. RECEIVING RF HEAD MR .................................................................................................................. 6
2. SYSTEM OVERVIEW........................................................................................................................ 7
2.1. TRANSMITTER ................................................................................................................................... 8 2.1.1. TRANSMITTING RF HEAD CONTROL UNIT TCU ............................................................................ 10 2.1.1.1. Power Supply .......................................................................................................................... 11 2.1.1.2. Microcontroller ....................................................................................................................... 13 2.1.1.3. Keypad ...................................................................................................................................... 15 2.1.1.4. Tx Control Unit ....................................................................................................................... 17 2.1.1.5. Mother Board .......................................................................................................................... 20 2.1.2. TRANSMITTING RF HEAD MT.......................................................................................................... 24 2.1.2.1. Supply ....................................................................................................................................... 25 2.1.2.2. Second If Up-converting Mixer ........................................................................................ 27 2.1.2.3. Multiplier and RF mixer....................................................................................................... 29 2.1.2.4. Local Oscillators..................................................................................................................... 32 2.1.2.5. Power Amplifier...................................................................................................................... 36
2.2. RECEIVER ......................................................................................................................................... 39 2.2.1. RECEIVING RF HEAD CONTROL UNIT RCU................................................................................... 41 2.2.1.1. Power Supply .......................................................................................................................... 42 2.2.1.2. Microcontroller ....................................................................................................................... 42 2.2.1.3. Keypad ...................................................................................................................................... 42 2.2.1.4. Rx Control Unit ...................................................................................................................... 44 2.2.1.5. Motherboard............................................................................................................................ 45 2.2.2. RECEIVING RF HEAD MR ................................................................................................................ 45 2.2.2.1. Supply ....................................................................................................................................... 45 2.2.2.2. Multiplier and RF mixer....................................................................................................... 45 2.2.2.3. First If Down-Converting Mixer ....................................................................................... 45 2.2.2.4. Local Oscillators..................................................................................................................... 45 2.2.2.5. IF Amplifier .............................................................................................................................. 45 2.2.2.6. Motherboard............................................................................................................................ 45
Page 4 of 58
1. General Description The Elber’s Microwave Link MT-MR in double frequency conversion and
frequency agile is the ideal equipment for the transmission of audio and video
signals over long distance in a wide range of applications.
The microwave link is able to transport both analogue (FM) and digital
modulated (QPSK, 16-QAM, 32-QAM, 128-QAM, 256-QAM) signals.
Other important features of the system are:
� Reliability and flexibility of the equipment
� Performance stability
� Low power consumption
� Reduced encumbrance
� User-friendly interface (keypad + LCD 24×2)
� Remote control by RS232, RS485 or Ethernet (SNMP protocol).
Page 5 of 58
1.1. Technical Specifications
1.2. Transmitter
1.2.1. Transmitting RF Head Control Unit TCU
IF Frequency 70 MHz
IF/DC Connectors LEMO(stability ERA.3T.275.CTL)
Control Front panel
RS-232
RS-485
SNMP
Power Supply AC: 230V/50Hz or 110V/60Hz
DC: 22V ÷ 65V positive to ground
Width 482 mm
Height 44 mm
Depth 480 mm
Weight 4 Kg
Temperature Operative Range -10°C ÷ 60°C
Relative humidity 0-95% non condensing
1.2.2. Transmitting RF Head MT
Central Frequency 2 GHz ÷ 19 GHz
Maximum Span 500MHz
Channels To be specified at order placement
Frequency Stability ± 20ppm (standard)
± 2ppm (high)
IF/DC Connectors LEMO (stability ERA.3T.275.CTL)
RF Output Power
� MT/07 (5 to 8 GHz) +33 dBm ±1 dB
� MT/10 (10 to 12.5 GHz) +30 dBm ±1 dB
� MT/14 (12.5 to 15 GHz) +30 dBm ±1 dB
� MT/18 (17.7 to 19.7 GHz) +25 dBm ±1 dB
RF Output Connector
� MT/07 Female N-type
� MT/10 IEC PBR 120
� MT/14 IEC PBR 140 � MT/18 IEC UBR 220
Return Loss RF Output > 20 dB
Spurious Level < -65 dB
IF impedance 75 Ohm
Waterproof Box
Power Supply DC: 22V ÷ 65V positive to ground
Maximum power consumption 65 W
Page 6 of 58
1.3. Receiver
1.3.1. Receiving RF Head Control Unit RCU
IF Frequency 70 MHz
IF/DC Connectors LEMO(stability ERA.3T.275.CTL)
Control Front panel
RS-232
RS-485
SNMP
Power Supply AC: 230V/50Hz o 110V/60Hz
DC: 22V ÷ 65V positive to ground
Width 482 mm
Height 44 mm
Depth 480 mm
Weight 4 Kg
Temperature Operative Range -10°C ÷ 60°C
Relative humidity 0-95% non condensing
1.3.2. Receiving RF Head MR
Central Frequency 2 GHz ÷ 23 GHz
Maximum Span 500MHz
Channels To be specified at order placement
Noise Figure < 6 dB
Frequency Stability ± 20ppm (standard)
± 2ppm (high)
RF Input connector � MR/07 Female N-type
� MR/10 IEC PBR 120
� MR/14 IEC PBR 140 � MR/18 IEC UBR 220
IF/DC Connectors LEMO (stability ERA.3T.275.CTL)
Return Loss RF Input > 20 dB
Image Rejection > 75 dB
IF impedance 75 Ohm
Waterproof Box
Power Supply DC: 22V ÷ 65V positive to ground
Maximum power consumption 48 W
П
Page 7 of 58
2. System Overview
The system is composed of the following macro-blocks:
1. Transmitter
o Control Unit TCU
o Transmitting RF Head MT
2. Receiver
o Receiving RF Head MR
o Control Unit RCU
Page 8 of 58
2.1. Transmitter
The transmitting section is composed of two units:
- An outdoor unit, the RF Head, which lies in a waterproof box
comprehending all the IF/RF conversion circuits, the control from the
IDU and the management of the signals.
- An indoor control unit in a rack standard 19” with the power supply,
the user interface and the remote control interface.
Page 9 of 58
Figure 1 Transmitter Block Diagram
Page 10 of 58
2.1.1. Transmitting RF Head Control Unit TCU
This indoor unit is appointed to feed, over a single output line, the DC Supply
(48 V dc), the data subcarrier for the programming of the Head, and the 70
MHz IF signal to the external RF Head.
Figure 2-TCU
As can be easily noted from the block diagram of Figure 1, the transmitting
head control unit is composed of the following boards:
1. POWER SUPPLY
2. MICROCONTROLLER
3. KEYPAD
4. TX CONTROL UNIT
5. MOTHERBOARD
Details and related electric schemes will be presented in the following
paragraphs.
Page 11 of 58
2.1.1.1. Power Supply
The TCU Power supply can be:
AC 230 V +/-20% 50Hz
115 V +/-10% 60Hz
DC 22 ÷ 65 V positive to ground
Fuse installed on AC input is 1.6 A.
An automatic switch between the two sources is present: in case of AC supply
decreasing under threshold, input voltage is switched on DC input. The switch
is instantaneous without interruptions in the equipment normal functioning.
DC input connector is a 4 pin; the supply cable must be connected to pin 2 and
4 independently of the polarity.
The DC input is galvanically isolated from the equipment ground.
Figure 3 – DC connector
Page 12 of 58
D10 20ETS08
D7 1N4148
TR1BC639
- +
D9 KBU6G
2
1
3
4
D4 6V2
D2 6v 2
D5 15V
+ C8
10u 63V
+15V
LS2 24V
675
324
18
R28
2K2
C22 2u2
C20 2u2R2122k
D8
+15V(0805)
R141500
Ctrl
+
C19 47u 16V
R23 1K
D11
+5V(0805
Ctrl
R15390
L2 100uH
-Vout
-Vout
+15Vopt
D12
MBRS360T3
J4 BATT
12345678
+15V
-15V
-15V
+C9
10u 63V
+15VS
-
+
U2A LM358A3
21
84
+Vout
Ctrl
+Vout
D16-15V(0805)
+15Vopt
R9 56
+15Vopt
R135K6
R622K
F1
FUSE
+
C12
2200u 63V
RV1 10k
R2222k
+
C244u7 16V
J1
Trasf
12
+15V
RL1
24 V
11
6
9
13 4 8
16
1
C15
1u
-
+
U2B LM358A5
67
84
Title
Size Document Number Rev
Date: Sheet of
1 1
Power Supply
A3
1 1Tuesday , September 26, 2006
R35K6
J8
CON3
123
+15V
-
+
U6B LM358A5
67
84
J6
CON16A
1 23 45 67 89 10
11 1213 1415 16
+Vout
D18 MBRS360T3
+5V
R161500
-
+
U6A LM358A3
21
84
-Vout
+15Vopt
RV2 10k
+5V
+15Vopt
U5 RP30-4815sew
-Vin2
Vout_-15V7 Vout_15V6
+Vin1
Ctrl4
Trim8
D171N4148
R74K7
R5 100K
+5V
TR2BC639
D13
6V2
D14 2V7
D15 15VC23
1uR1910K
R2022K
R2412K
R254K7
R26 33K R27 680K
R8 680K
L17
1uH
+ C68100uF 6V
U4 LM2671
Vin7
Cb1
Ss2
Sy nc3
Fb4
Gnd6
Vsw8
Inibit5
+5V
+C55
2u2 50v
C56
2u2 50v +C57
47u 16V
-15V
IC1
LM2672
VIN7
OUT8
GND
6
FB4
ON/OFF5
Cb
1SS
2
L5 47uH 2A
D6
MBRS360T3
+C58
47u 16V
R33 3k3
D19
S3K
R34 1K
C59
10nf
C60
10nf
+15VS
+15V
U3 RP30-4815sew
-Vin2
Vout_-15V7
Vout_15V6
+Vin1
Ctrl4
Trim8
D20
S3K
C18
10n
+ -
~
~
D1 DF04M
+15V
C14 10n
+
C21 47u 16V
Page 13 of 58
2.1.1.2. Microcontroller
The microcontroller provides for the following functions:
• Programming of transmitting frequency.
• Programming of right back-off value as requested by the digital
modulation scheme adopted.
• Management of keypad, display and leds on the front panel
• Setting of equalisation network of the connection cable with the RF Head
(10/100/200m).
• Alarms management
• Data communications with remote control interface.
Page 14 of 58
Title
Size Document Number Rev
Date: Sheet of
1 1
MICROCONTROLLER
A3
1 1Thursday , Nov ember 09, 2006
+5V
SCLSDA
PRG
+ C25
1u
+5V
J14
CON6AP
1 23 45 6
C24NC
R15 330
R16 330
P1.7
+5V
+C114u7 16VL
+5V
J1
CON2
12
RxD3
SDA1
SCL1
+5V
L1100uH
J8
CON10AP
12345678910
U3
MAX232
C1+1
C1-3
C2+4
C2-5
V-6
V+2
R2in8
T2out7
VSS
15
VCC
16
T1out14
R1in13
R1out12
T1in11
T2in10
R2out9
L2100uH
+
C124u7 16VL
RS232TO
+
C10
4u7 16VL
+ C8
47u 16VL
+C224u7 16VL
+5V
+
C94u7 16VL
U10
MAX232
C1+1
C1-3
C2+4
C2-5
V-6
V+2
R2in8
T2out7
VSS
15
VCC
16
T1out14
R1in13
R1out12
T1in11
T2in10
R2out9
+5V
RX0 RS232RI+
C23
4u7 16VL
+
C21
4u7 16VL
+
C204u7 16VL
+
C1
47u 16VL
+5V
R6
4K7
R5
4K7
U1TL7705
Vcc
8Sen
7
/Res5
Res6
GND
4
Res In2
Ct3
Ref1
+5V
+ C6
1u
P1.7
C7
100n
RESET
P0.6
+5V
TX0
+ C13
47u 16VL
RV1
10K
D_EN
+5VP2.3
D_BR
P2.2P0.2
P0.4P0.5
P2.4
PRG
P2.5
P0.7
P0.3
P2.6
SDA
+5V
SCL
C
R1
8x10K
123456789
P3.6
P2.7
P3.7R9330R10330
L5 100uH
P3.4
L6 100uH
J2
CON2
12
U6
24FC512
A01
A12
A23
SCL6
SDA5
VDD
8
VSS
4WP
7
+5V
P3.2
P3.4P3.3
P3.7P3.6P3.5
L7 100uH
L8 100uH
P3.2
C2
100n
R7 4K7Q1BC327
P2.1
J5
CON3
123
PRGM PRGM
C3
100n
C4
100n
C5
100n
C
R3
8x10K
123456789
P2.0
P2.3P2.2P2.1
P2.6P2.5P2.4
+5V
P2.7
P2.0
RS232T
RxDTxD
P0.7
P0.5
P0.1
C
R4
8x10K
123456789
P0.4
P0.0
+5V
RST-RS-485
P0.3P0.2
P0.6
P0.0P0.1
P3.2
P3.7
IN0
P3.5
P3.3
RS232R
P3.6
J6
CON8AP
+1
+3
+5
+7
+2
+4
+6
+8
IN1
J10
CON8AP
+1
+3
+5
+7
+2
+4
+6
+8
L3100uH
LS1
DS3695AM
910
8
43
5112
L4 100uH
+5V
BA
R26
0
R112K7
J7
CON8AP
+1
+3
+5
+7
+2
+4
+6
+8
R122K7
-7V
C16
33p
-7V
-15V
D2
1N4148
-15V
Q2BC327
R17
4K7
+5V
U2 P89C51RD2FBD
RST4
XTAL214 XTAL115
GND
16
PSEN26ALE/PROG27
EA/VPP29
VCC
38
P1.040
P1.141
P1.242
P1.343
P1.444
P1.51
P1.62
P1.73
P2.0/A818
P2.1/A919
P2.2/A1020
P2.3/A1121
P2.4/A1222
P2.5/A1323
P2.6/A1424
P2.7/A1525
P3.0/RXD5
P3.1/TXD7
P3.2/INT08
P3.3/INT19
P3.4/T010
P3.5/T111
P3.6/WR12
P3.7/RD13
P0.0/AD037
P0.1/AD136
P0.2/AD235
P0.3/AD334
P0.4/AD433
P0.5/AD532
P0.6/AD631
P0.7/AD730
NIC
17
R186K8
C15
33p
U4
PCF8591
AIN01
AIN12
AIN23
AIN34
A05
A16
A27
VSS
8
SDA9SCL10
OSC11
EXT12
AGND
13
VREF14AOUT15
VDD
16
+5V
Y1 24MHZ
R1
R8
1k
D1
NC(C2V7)
T1
+ C1410u
R2
RS232T
T2
RS232R
J4
CON16AP
+1 +3 +5 +7 +9 +11 +13 +15
+2+4+6+8+10+12+14+16
J3
CON2
12
+5V
R13
1k
R14
1kP3.5
P3.2
+5V
RST-RS-485
RxD
P1.7
P0.0
TX0
TxD
P0.1GND_C
SDA1
SDA+5V_C
SCL1 SCL
RxD
RESET
RX0
RxD3TxD3S0S1
TxD
J13
CON10AP
1 23 45 67 89 10
SDASCL
C26NC
J21
CON16AP
+1
+3
+5
+7
+9
+11
+13
+15
+2
+4
+6
+8
+10
+12
+14
+16
RS232RI
OUT1
RS232TO
LED1BLED1A
LED2BLED2A
Page 15 of 58
2.1.1.3. Keypad
Keypad board is directly installed on the front panel.
It lodges the LCD display 24x2, 16 leds and 6 buttons for menu browsing.
Page 16 of 58
Title
Size Document Number Rev
Date: Sheet of
1 1
KEYPAD Control Unit
A3
1 1Thursday , October 04, 2007
U2
MCP23016-I/S0
GP1.02
VDD
20
GND
1
GND
8
GND
19
GP1.13
GP1.24
GP1.35
/INT6
GP1.47
CLK9
TP10
GP1.511
GP1.612
GP1.713
SCL14
SDA15A016A117A218GP0.021GP0.122GP0.223GP0.324GP0.425GP0.526GP0.627GP0.728
U3_GP1.5
GP1.0GP1.1GP1.2GP1.3
GP1.4
GP1.5
U3_GP1.4
U3_GP0.5
U3_GP0.1
U3_GP0.3
U3_GP1.5
SCLGP1.7GP1.6
U3_GP1.2
U3_GP0.2
U3_GP0.0
U3_GP1.6
U3_GP1.3
U3_GP1.0
U3_GP0.4
U3_GP1.7
GP0.7
U3_GP0.7
GP0.4GP0.5GP0.6
U3
MCP23016-I/S0
GP1.02
VDD
20
GND
1
GND
8
GND
19
GP1.13
GP1.24
GP1.35
/INT6
GP1.47
CLK9
TP10
GP1.511
GP1.612
GP1.713
SCL14
SDA15A016A117A218GP0.021GP0.122GP0.223GP0.324GP0.425GP0.526GP0.627GP0.728U3_GP1.0
GP0.1GP0.2GP0.3
U3_GP1.3U3_GP1.2U3_GP1.1
GP0.0
U3_GP1.5
U3_GP1.4
SCLU3_GP1.7U3_GP1.6
U3_GP0.5U3_GP0.6U3_GP0.7
U3_GP0.3U3_GP0.4
U3_GP0.0U3_GP0.1U3_GP0.2
+5V+5V
+5V+5V
C333pF
+5V
PRG
R363K9
D10
LED BI-COLOUR
+5V
R20270
+5V
R37390
SDA
R21270
D11
LED BI-COLOUR
RN510K
1234
678
5
R22270
R23270
RN610K
1234
678
5
D12
LED BI-COLOUR
R24270
RN710K
1234
678
5
R25270
D13
LED BI-COLOUR
C4
100nF
R26270
RN810K
1234
678
5
R27270
D14
LED BI-COLOUR
+5V
U3_GP1.1U3_GP0.6
R28270
R29270
D15
LED BI-COLOUR
+5V
U3_GP1.6
R30270
R31270
D16
LED BI-COLOUR
R32270
+5V
R33270
D17
LED BI-COLOUR
R34270
R35270
ENTERESC
SU
DESTRAGIU
SINISTRA
RX0TX0SCLSDA
J2
CON16AP
+1
+3
+5
+7
+9
+11
+13
+15
+2
+4
+6
+8
+10
+12
+14
+16
SINISTRA
C133pF
R13K9
U3_GP0.4
U3_GP0.5
U3_GP0.6
+5V
PRGGP0.1
GP0.3
GP1.2GP1.3
GP0.2
GP0.0
GP1.5
GP1.6
GP1.0GP1.1GP0.6
GP0.4
GP1.7
GP1.4
GP0.7
GP0.5
+5V
+5V
SINISTRA
U3_GP0.3
U3_GP0.0
U3_GP0.1
U3_GP0.2
GP0.1
GP0.2
GP0.3
GP0.0
GP0.7
GP0.4
GP0.5
GP1.7
GP0.6
GP1.4
GP1.5
GP1.6
R18
270
SU
GP1.2
GP1.3
GP1.0
GP1.1
GIU
U3_GP0.7
+5V
ENTER
P1
CONNECTOR DB9
5 9 4 8 3 7 2 6 1R19390
DESTRA
U3_GP1.1
U3_GP1.0
SDA
ESC
SW1
SW PUSHBUTTON-SPST-2/SM
1 4
2 3 SW2
SW PUSHBUTTON-SPST-2/SM
1 4
2 3 SW3
SW PUSHBUTTON-SPST-2/SM
1 4
2 3 SW4
SW PUSHBUTTON-SPST-2/SM
1 4
2 3
RX0
SW5
SW PUSHBUTTON-SPST-2/SM
1 4
2 3
U3_GP1.7
SW6
SW PUSHBUTTON-SPST-2/SM
1 4
2 3
RN110K
1234
678
5
TX0
RN210K
1234
678
5
RN310K
1234
678
5
C2
100nF
RN410K
1234
678
5
U3_GP1.2
U3_GP1.3
D1
LED BI-COLOUR
R2270
R3270
D2
LED BI-COLOUR
R4270
R5270
D3
LED BI-COLOUR
R6270
R7270
D4
LED BI-COLOUR
R8270
R9270
D5
LED BI-COLOUR
R10270
R11270
D6
LED BI-COLOUR
R12270
R13270
D7
LED BI-COLOUR
R14270
U3_GP1.4
R15270
D8
LED BI-COLOUR
R16270
R17270
D9
LED
Page 17 of 58
2.1.1.4. Tx Control Unit
The board provides for the mixing over a single output line (on a SMB
connector connected to the LEMO connector located in the back panel) of DC
supply (48 V dc), data subcarrier and 70 MHz IF signal.
Changing the jumper placement on connectors J18 and J19, the DC supply
polarity can be changed.
Page 18 of 58
Title
Size Document Number Rev
Date: Sheet of
1 1
UCT - Control
A3
1 1Tuesday , July 10, 2007
C72
100nF
EQ_SEL_1_P
F2
FUSE
DC
IF_Lev
EQ_SEL_2_P
EQ_SEL_1EQ_SEL_0
+5V
RS232RRS232TSDA1 P0.0 Data in
P0.1Data outGND_C
SDA+5V_C
SCL1 SCL
J13
CON10AP
1 23 45 67 89 10
Acquisizione misure e settaggi
U6
4052/FP
X012
X114
X215
X311
Y01
Y15
Y22
Y34
EN6
A10
B9
X13
Y3V
DD
16
GND
8
VEE7
R69
10k
J18
CONN SOCKET 3
123
+15Vopt
-15V
+15Vopt
J19
CONN SOCKET 3
123
J6
CON16A
1 23 45 67 89 10
11 1213 1415 16
+15V
C651uF 16V
C63
47nF
C6647nF
+5V
L547uH
C73
100nF
R117
10k
+5V
+C60
22uF 100V(RADIAL)
C74
100nF
C75
100nF
+15V
A2_LA1_L
A4_LA3_L
A_mon
-15V
+15V
Subcarrier
EQ_SEL_2_P
Subcarrier
EQ_SEL_1_PEQ_SEL_0_P
EQ_SEL_1_PEQ_SEL_0_P
EQ_SEL_2_P
Protezione CC e Selezione per POS/NEG_TO_GNDingresso CC di servizio
IF_INT/EXT SELEQ_SEL_2
+5V
IF_INT/EXT SEL_P
DC + subcarr
D17
IN4148
+24unreg
IFi_L
C61680pF 100V(1206)
IFi_L
IFe_L
-24unreg
C67
47nF(100V 1206)
L847uH
IF_INT/EXT SEL_P
J14
CON10AP
1 23 45 67 89 10
U5
TDA5051
Osc28
APgnd9
VDDa13
Test16
VDDd3
Data in1
Data out2
VDDap11
TXout10
RXin14
Agnd12Clk out
4
Scant6
PD15
Dgnd5
Osc17
C68
27pF
C6927pF
Y38Mhz
R59 2M2
IN1A/V levIN0IF_Lev
OUT1
L27 1uH-2A(axial)L28 1uH-2A(axial)
L29
470uH-5A
IFe_L
-24unreg
C58680pF 100V(1206)
C71
47nF
D124V7
Somma della continua con la sottoportante dati
Modem dati a bassa velocità
Filtro High-pass per adattamento cavo
An_SEL_0
-
+
U10ALM3583
21
84
DC
-
+
U10BLM3585
67
J8
Pwr 26V1
2
+15V
D11
S3K7
+DC
An_SEL_1
-DC
+5V
A_V sw drv
To Next Sheet
Input Connectors
C70
100uF-6.3V
+5V
DC + subcarr
MOD_ALARM
-
+
U11ALM3583
21
84
-
+
U11BLM3585
67
DC + subcarr
R58100
+24unreg
C6410nF
U4
PCF8574
Vss8
P49
/INT13
Vdd16
A23
A01
A12
P611
P510
SCL14
P712P0
4
P26
SDA15
P15
P37
IFe_LIFi_L
-15V
+5V
SDASCL
IF_INT/EXT SEL_P
Data outData in
+15V
GND_EARTH
+15V
EQ_SEL_0_P
GND_EARTH
+15V
Page 19 of 58
R42100
Title
Size Document Number Rev
Date: Sheet of
1 1
UCT - IF
A3
1 1Thursday , July 12, 2007
J7IF MON
1
2
R48560
Enable Ext IF
C50
1uF 16V
R233k3
R24560
IF
R25 390
R26
560
R27560
C9 1nF
C10 1nF
L6 4u7C17
10nF
C2410pF
C31
10nF
L11 4u7
R65560
+15V
C4810nF
R22
270
R44 100
IF Ext
J2
IF int
1
2
R50560
C51
1uF 16V
R393k3
R40560
R46 390
R4
NC
R47
560
R5
1k8
R52560
R6
NC
R71k8
R8
NC
C12 1nF
R9
1k8
C13 1nF
L9 4u7
R10 270
C18
10nF
R11 75
R12
100
R13150
R14 75
R15 82
C2710pF
R16 75
C33
10nF
R17
75
R18 220
L14 4u7
R19 75
R20 150
C5210nF
Enable Ext IF
R67
560
C1
1nF
C2
1nF
C3
1nF
C4 33pF
C5 68pF
C6
10nF
C7
10nF
C8
10nF
EQ_SEL_2_P
D5
BA682
R64 0
Enable Int IF
To Next Sheet
C35 1nF
R29
68
R30
27
D6 BA682
R68
560
R37 82
C37
100nF
IF_INT/EXT SEL_P
R51560
C53
1uF 16V
R533k3
R54560
R60390
R61
560
R62560
C14 1nFC151nF
L104u7C28
10nF
C2910pF
C34
10nF
IF Int
L154u7
R63
47k
D9
HSMS 2800
C5410nF
Q6
BFP196
D13
HSMS 2800
L30
470nH
R116
56
C36
1nF
Q7
BFP196
IFe_L
IF
Q8
BFP196
Selezione ingresso IF
Letture Presenza IF
C25120pF 100V(0603)
C26
120pF 100V(0603)
D14
IN4148
EQ_SEL_0_P
Enable Int IF
EQ_SEL_2_PEQ_SEL_1_P
DC + subcarrDC + subcarr
R113
1k
EQ_SEL_1_P
EQ_SEL_0_P
Uscita IF
Equalizzazione del cavo per le varie lunghezze
IF Int
L13280nH(6 1/4 DIAMETRO FILO=0.25)
C16
1nF
L26370nH(9 1/4 DIAMETRO FILO=0.25)
D15
BA682
R38
680
EQ_SEL_0_PEQ_SEL_1_P
Amplificazione Uscita IF e Somma al Mux
EQ_SEL_2_P
C32 1nF
C30
100nF
LS1
RELAY OMRON G5V-1
5
61
29
10
Ingresso IF Esterno Ingresso IF Interno
D16
BA682
+15V
D4BA682
IF Ext
J5DC + subcarr
1
2
L31 NC
IFi_L
DC + subcarr
L32 NC
IFi_LIFe_L
IFe_LIFi_L
+15V
GND_EARTHGND_EARTH
+15V
+15V
R2847k
D7
HSMS 2800
D8HSMS 2800
IF_INT/EXT SEL_PIF_INT/EXT SEL_P
R43
270
R45 100
J3
IFext
1
2
R66560
R41270
Page 20 of 58
2.1.1.5. Mother Board
This board consists of a big plate prearranged to lodge up to four same-size
standard boards and two of reduced format, or two standard format boards
and six of the reduced one.
Moreover it lodges the microcontroller, the power supply board and the
transformer
Its presence limits the cabling, otherwise very complex, and makes the
equipment ready to future upgrades.
Page 21 of 58
Reduced format boards
Transformer
Microcontroller
Supply
Standard format boards
Page 22 of 58
Output PCF
Output PCF
Output PCF
Output PCFOutput PCF
Output PCF
Output PCF
Output PCF
COM
COM
+5V+15V +15V
-15V
+5V
J52
CON16AP
1 23 45 67 89 10
13121114
15 16
CONNETTORE ALIMENTAZIONE
IF Lev IN0
J72
CON10AP
1 23 45 67 89 10
COM
+5VP0.1Data out+24unreg
COM +5V
CONNETTORE I/O
J62
CON10AP
1 23 45 67 89 10
-24unreg
P0.0 Data in
COMSDASCL
CONNETTORE LETTURA LIVELLI
COM
COM
MOD/DEM ANALOGICO BIS
+15V +15V-15V
+5V +5V
J50
CON16AP
1 23 45 67 89 10
13121114
15 16
CONNETTORE ALIMENTAZIONE
IF Lev IN0
J70
CON10AP
1 23 45 67 89 10
COM
+5VP0.1Data out+24unreg
COM +5V
CONNETTORE I/O
J60
CON10AP
1 23 45 67 89 10
-24unregCOM
SDASCLP0.0 Data in
CONNETTORE LETTURA LIVELLI
CONTROL UNIT TX/RX
-24unreg+24unreg
-24unreg
LINERESET
+24unreg
COM
COM
+5V+15V +15V
-15V
+5V
J53
CON16AP
1 23 45 67 89 10
13121114
15 16
CONNETTORE ALIMENTAZIONE
IF Lev IN0
J73
CON10AP
1 23 45 67 89 10
COM
+5VP0.1Data out+24unreg
COM +5V
CONNETTORE I/O
J63
CON10AP
1 23 45 67 89 10
-24unreg
P0.0 Data in
COMSDASCL
CONNETTORE LETTURA LIVELLI
ENCODER/DECODER
COM
COM
+15V +15V-15V
+5V +5V
J54
CON16AP
1 23 45 67 89 10
13121114
15 16
IF Lev IN0
CONNETTORE ALIMENTAZIONE
J74
CON10AP
1 23 45 67 89 10
COM
+5VP0.1Data out+24unreg
COM +5V
CONNETTORE I/O
J64
CON10AP
1 23 45 67 89 10
-24unregCOM
SDASCLP0.0 Data in
CONNETTORE LETTURA LIVELLI
ENCODER/DECODER BIS
LINERESETLINE
RESET
RESETLINE
LINE
RESETLINE
RESETLINE
RESET
+5VP0.1Data out+24unreg
COM +5V
CONNETTORE I/O
-24unreg
J65
CON10AP
1 23 45 67 89 10 COM
SDASCLP0.0 Data in
CONNETTORE LETTURA LIVELLI
MOD/DEM COFDM
+5V+24unreg
+5VP0.1Data out
COM
CONNETTORE I/O
COM-24unreg
J67
CON10AP
1 23 45 67 89 10
P0.0 Data in
SDASCL
COM
COM
CONNETTORE LETTURA LIVELLI
+15V +15V+5V +5V
OPT BOARD 2
-15V
IF Lev IN0
LINE
COM
+15V
RESET+5V
COM
+15V+5V
-15V
J56
CON16AP
1 23 45 67 89 10
13121114
15 16
CONNETTORE ALIMENTAZIONE
IF Lev IN0
COM
J51
CON16AP
1 23 45 67 89 10
13121114
15 16
+5V
CONNETTORE ALIMENTAZIONE
J76
CON10AP
1 23 45 67 89 10
+24unreg P0.1Data out
J71
CON10AP
1 23 45 67 89 10
COM +5V
COM
+5V+24unreg
-24unreg
P0.1Data out
CONNETTORE I/O
COM
COM
CONNETTORE I/O
+5V
J66
CON10AP
1 23 45 67 89 10
SCLP0.0 Data in
-24unreg
SDA
J61
CON10AP
1 23 45 67 89 10
CONNETTORE LETTURA LIVELLI
COM
P0.0 Data inSCL
COM
OPT BOARD 1
+15V +15V
COM
SDA
CONNETTORE LETTURA LIVELLI
+5V +5V
IF Lev IN0
-15V
J57
CON16AP
1 23 45 67 89 10
13121114
15 16
CONNETTORE ALIMENTAZIONE
COM
J77
CON10AP
1 23 45 67 89 10
COM
COM
+15V +15V-15V
+5V +5V
IF Lev IN0
J55
CON16AP
1 23 45 67 89 10
13121114
15 16
CONNETTORE ALIMENTAZIONE
J75
CON10AP
1 23 45 67 89 10
COM
Title
Size Document Number Rev
Date: Sheet of
1 2
Mother Board TCU/RCU v 2
A3
2 2Tuesday , June 26, 2007
IF Lev IN0IF Lev IN0
P0.1Data outP0.0 Data inSCL
RESET
SDA
-15V+5V
LINE
COM
RESET
Data outLINE
Data inSCL
+5VSDA
COM-15V
+15V+15V
MOD/DEM ANALOGICO
Output PCFOutput PCF
Page 23 of 58
-BATT+BATTNO
CONNETTORE RS485
J7
CON8AP
12345678
CONNETTORE ALIMENTAZIONE uC
COMMON
CONNETTORE PCF8591 uC
J12
CON10AP
12345678910
COM
CONNETTORE VENTOLA 2CONNETTORE VENTOLA 1
NCB
COM+15V
CONNETTORE RS485 +5V-15V
CONNETTORE VENTOLA 3
RST_RS-485
BNOA
COMMONNC
J13
CON10AP
1 23 45 67 89 10
CONNETTORE uC
J22
CON16AP
12345678910
1312 1114
1516
I/O CONNECTORS
A
J40
CON8AP
1 23 45 67 8
RS232R
CONNETTORE TASTIERA
P0.6
COM
SDA
COM
COM
P0.7P0.5
RS232T
COMP0.3
SCL
+5VP0.2
P0.4
-15V+5V
COM
J8
CON10AP
12345678910
CONNETTORE BATTERIA Alimentatore
+BATT
+5V
J42
CON2
12
COM
J43
CON2
12COM COM +15V
COM
+5V+15V
COM
+5V
LINERESET
+5V
J44
CON2
12COM
+5V
J45 CON2
12
+5V
J46 CON2
12
-BATT
+5V
J41
CON2
12
RST_RS-485
CONNETTORE BATTERIA
COM
COM
SUPPLY
+15V +15V-15V
+5V +5V
-24unreg +24unreg
J6
CON16AP
1 23 45 67 89 10
13121114
15 16 +5V
CONNETTORE ALIMENTAZIONE
Output PCF
Output PCF
P0.0 Data in
Output PCF
IF Lev IN0
P0.1Data out
SDASCL
+5V
LINERESET
-24unreg-24unreg
-15V
+24unreg
COMIF Lev IN0
+24unreg
J14
CON6A
1 23 45 6
IF Lev IN0
MONITOR SUPPLY
COM
P0.1Data out
P0.0 Data in
RESET
+5V
J21
CON16AP
12345678910
1312 1114
1516
+5V
CONNETTORE DISPLAY uC
+5V
J4
CON16AP
12345678910
1312 1114
1516
CONNETTORE TASTIERA uC
COM
P2.6P2.7
COM
P2.4P2.5P2.2
P2.3D_EN
COMD_BRCOM
P0.6
RS232R
P0.7COM
COM +5V
P0.5
RS232T
VCC
P0.3P0.2COM
P0.4
LINE
SDASCL
Data out
MICROCONTROLLER
SCLSDA
Data inVENTOLE
+5V-15V
Title
Size Document Number Rev
Date: Sheet of
1 2
Mother Board TCU/RCU v 3
A3
1 2Wednesday , July 25, 2007
P2.2P2.3D_EN
COMD_BRCOM
COM
+5V
P2.6P2.7
COM
P2.4P2.5
J10
CON16AP
12345678910
1312 1114
1516
CONNETTORE DISPLAY
Page 24 of 58
2.1.2. Transmitting RF Head MT
The external RF head receives, on a single input line, from the control unit, a
signal which is the sum of DC supply, data subcarrier and IF signal and
provides for the separation of the three components.
The main task of the equipment is to perform the IF/RF conversion.
Figure 4 TX Head
As results from the block diagram of Figure 1, the transmitting head is
composed of 5 boards:
1. SUPPLY
2. SECOND IF UP-CONVERTING MIXER
3. MULTIPLIER AND RF MIXER
4. LOCAL OSCILLATORS
5. POWER AMPLIFIER
Page 25 of 58
Details and related electric schemes will be presented in the following
paragraphs.
2.1.2.1. Supply
This boards provides for the separations of the three signals which make part
of the multiplex transported over the RG-216 cable coming from the control
unit: the data subcarrier is sent to the local oscillators boards, where the
controller of the head is installed; the 70 MHz IF signal is provided at the input
of the first converter (Second If Up converting Mixer); the 48V DC supply is
utilized to generate all the voltages necessary for the functioning of the boards
composing the head.
Page 26 of 58
Page 27 of 58
2.1.2.2. Second If Up-converting Mixer
The 70 MHz IF signal present at the input, before the up-conversion to the
1100 MHz frequency of the second IF, is filtered by a band-pass filter 30 MHz
wide.
This filtering is useful to remove from the Tx output spectrum the noise,
coming from an analogue receiver, or spurious frequencies, coming from a
digital modulator, eventually present in the IF input signal.
The image frequency (having a 140 MHz offset from 1100 MHz) is filtered by a
ceramic resonators filter (7 cells).
In the same functional block is also installed a variable gain amplifier,
controlled by the power detector, having the function of maintaining the output
power at the selected value (ALC function).
Page 28 of 58
Title
Size Document Number Rev
Date: Sheet of
<Doc> <RevCode>
MIXER_TX_1G
A3
1 1Tuesday , June 19, 2007
R7
47
+C53
2u2 50V
C56
2u2 50V +C55
10uF 6V(KEMET)
+15V
IC1
LM2672
VIN7
OUT8
GND
6
FB4
ON/OFF5
Cb
1SS
2
L51 100uH 5.4 A
D1
MBRS360T3
+C54
10uF 6V(KEMET)
R52 3KR51 1K
C51
10nF
C52
10nF(1206)
R27
10
R28
10R31120
C121nF
R19
22
R22270
R24270
C415p6
U10
MGA53543
31
42
L51uH(1210)
L1318nH(1210)
C13100nF
C42 4p7
C14100nF
C44
1nF
C45
22pF
C46
1uF+5V
J7
BNC
1
2
R16
0R17NC
R18270
+5V
U9
MGA53543
31
42
C34
5p6
C35
4p7
L1018nH(1210)
FilterOut
C37
22pF
C36
1nF
PWR_LEV_FINAL
C38
1uFL11
18nH(1210)
L12
18nH(1210)
C111nF
L415uH(1210)
R83K3
R14560
R4560
R3560
C10
1nF
R11 330
U4
VA101
OUT4
IN3
Vcont1
GND
2
GND
5Vcc
6
C2100nF
C6
10nF
R1547
+5V
Q3
NC(BFP196)
-
+
U6ALM358
3
21
84
C26100nF
L2
NC[120nH(M
C152 TOKO)]
J4JUMPER
1 2
C4
1nF
+15V
R2110K
R2310K
R20
0
PWR_LEV_FINAL
ALC REF
+5V
J3
CONN SOCKET 3
123
C19
4p7
J1SMA
1
2
+15V +15V
U1NC(SAW)
RF OUT5
RF IN11
GND
1
GND
3
GND
4
GND
8
GND
6
GND
7
GND
2
GND
9
GND
10
GND
12
J8
FILTER IN
1
Q2
BFP196
L315uH(1210)
R63K3
R13560
R2470
J9
FILTER OUT
1
R1
470
U3
RMS30
GND
2
LO1
GND
3
RF4
IF5
GND
6
C9
1nF
R10 220
U5
MGA53543
31
42
C17
5p6
C18
4p7
J6
CONN SOCKET 3
123L718nH(1210)
C21
22pF
C20
1nF
C22
1uF
C1100nF
C5
10nF
R12100
C151nF
R25
10
R26
10R29120
R32470
R33560
L6
NC[120nH(M
C152 TOKO)]
J5
CONNECTOR DB15
815714613512411310291 +15V
COM
+15V
ALC REF
C48
1uF
R9
47
L8
33nH(1210)
+5V
FilterOutJ2
SMB
1
2
C6012pF0805
L70470nH(0805)
0805CS
L8082nH(1008)1008HQ
C2327pF0805
C40
NC0805
C90
NC0805
C22022pF0805
L90120nH(1812) 1812HQ
C14022pF0805
C1003pF-10pF
L100100nH(1008)1008HQ
L11082nH(1008)1008HQ
L120100nH(1008)1008HQ
C12033pF0805
C31nF
L15
18nH(1210)
l1
33nH(1210)
R3068
Page 29 of 58
2.1.2.3. Multiplier and RF mixer
This board converts the signal coming from the first up-converter to the final
frequency of the transmitter. The conversion function is performed by a wide-
band diode passive mixer.
On the output line of the mixer is inserted a band-stop filter in order to
attenuate the image frequency, located at a 2200 MHz distance from the
central frequency of the link.
The final value of the frequency is obtained applying to the oscillator signal
three wideband duplication stages in cascade.
The level necessary to correctly pilot the mixer is obtained inserting some
amplification stages with GaAsFet amplifiers.
Multiplier and mixer are installed in appropriate RF cavity.
Page 30 of 58
Page 31 of 58
TP2
+15V
R24 1K R25 10k
D3C4V7
21
+
C210u 16V RV26
4K7
-Vb
TP1
T POINT S
-15V
-Vb1
TP3
T POINT S
L17
1uH
+ C68220uF 6V
TP5T POINT S
R27 NC
R30 NC
+5VA
R31470
R32470
TP4
T POINT S
R33 100
R34 NC
+C55
2u2 50v
C56
2u2 50v +C57
47u 16V
IC1
LM2671
VIN7
OUT8
GND
6
FB4
ON/OFF5
Cb
1SS
2
L5 100uH 5.4 A
D5
MBRS360T3
21
+C58
47u 16V
+5VA
R26 3k3R28 1K
C59
10nf
C60
10nf
CONV POS BIAS_AUXJ24
+VP2
1
-15V
+15V
+15V
R35
47k
RV2210K
J25
-VP2
1CONV NEG BIAS_AUX
R21 2K2
R22 220
-15V
R23
47K
D212V7
21
CONV POS BIAS
d226V2
21
+ C21
10uF 16V RV2110K
CONV NEG BIASJ22
-VP
1J23
+VP
1
J5
CONNECTOR DB15
815714613512411310291
R29
10k
RV304K7
Title
Size Document Number Rev
Date: Sheet of
1 <RevCode>
MOLTIPLICATORE E MIXER
A3
1 1Friday , February 23, 2007
Page 32 of 58
2.1.2.4. Local Oscillators
This board lodges a microcontroller which provides for the communication with
the control unit and for the monitoring of the different boards.
Moreover, two local oscillators for the first and the second conversion are
located in opportune cavity.
The first conversion local oscillator is composed of an L band synthesizer; the
PLL (Phase Locked Loop) controls the frequency of a low phase noise VCO.
The frequency is fixed and its value (1170MHz/1030MHz) is programmed by
the controller during the start-up of the system through an SPI.
The oscillator is cyclically interrogated to monitor the lock state.
The second conversion local oscillator utilizes a synthesizer very similar to the
one used in the other oscillator, using a high stability TCXO as reference. In
this case the PLL controls a DRO VCO with low phase noise.
The same serial bus let the controller to set the frequency and to control
periodically the loop lock state.
Page 33 of 58
Title
Size Document Number Rev
Date: Sheet of
<Doc> <RevCode>
CONTROLLER
A3
1 1Thursday , August 30, 2007
5bus
P2.0
R9
2k2
R11
2k2
STROBE2
D6
NC(C2V7)
21
+5V
+
C23 100uF 6V(KEMET)
CLOCK
C7
27pF
C2 47nF
C9
27pF
P2.4P2.4P2.5P2.5
C8
27pF
P2.2P2.2P2.3P2.3+5V
J10
CON10AP
1 23 45 67 89 10
C3 10nF
C11
27pF
Q7BC848
DATA
12V
LOCK2
J5
CON3
123
J1SMB
1
2
C22100nF
C12
27pF
R23
2k2
232 EXT RX
R16 1k
P2.6
R20
51K
D1
C4V7
21
R24
2k2
R25
510K
SCL
LOCK1
R13 3K3
R15100
P2.7
232 EXT TX
+5V INT
C24NC
R6
4K7
R3
2K2
SDA
Q8BC848
C91100nF
5bus R5 NC
L2
47uH
C93100nF
GND
R22 NC
-12V
R10 3K3
LINE
+C15
1uF
+5V
4bus R81K
+ C6
100uF 16V
SCL
R4
2K2
C1 1nF
U4
PCF8591
AIN
01
AIN
12
AIN
23
AIN
34
A0
5
A1
6
A2
7
VSS8
SDA
9SCL
10
OSC
11
EXT
12
AGND13
VREF
14
AOUT
15
VDD16
J11
HEADER 2
12
+5V
C5
100nF
+C13
2u2
J9
CON2
12
+
C19
2u2 50v
R14
4K7
C17
2u2 50v
+5V
U3 TL7705
Vcc
8
Sen
7
/Res5
Res6
GND
4
Res In2
Ct3
Ref1
+
C21
100uF 6V(KEMET)
U16
ST24C02
A01
A12
A23
SCL6
SDA5
VDD
8
VSS
4
RST-RS-485
RESET
+5V
IC1
LM2672
VIN7
OUT8
GND
6
FB4
ON/OFF5
Cb
1SS
2
L3 100uH 5.4 A
P2.1
P2.5
D3
MBRS360T3
21
P2.4
P2.7P2.6
+
C20100uF 6V(KEMET)
P2.0
P2.2P2.3
R18 3K3
RN410K
1234
678
5
R17 1K
RN210K
1234
678
5
J13
CON8AP
1 23 45 67 8
C16 10nF
C18
10nF
+12V
J6
CONNECTOR DB15
815714613512411310291
+12V
+5V
+12V
R7
4K7
C25100nF
R2 3R9 L1
47uH
R21 330
12V
U2P89C51RD2FBD
RST4
XTAL214 XTAL115
GND
16
PSEN26ALE/PROG27
EA/VPP29
VCC
38
P1.040
P1.141
P1.242
P1.343
P1.444
P1.51
P1.62
P1.73
P2.0/A818
P2.1/A919
P2.2/A1020
P2.3/A1121
P2.4/A1222
P2.5/A1323
P2.6/A1424
P2.7/A1525
P3.0/RXD5
P3.1/TXD7
P3.2/INT08
P3.3/INT19
P3.4/T010
P3.5/T111
P3.6/WR12
P3.7/RD13
P0.0/AD037
P0.1/AD136
P0.2/AD235
P0.3/AD334
P0.4/AD433
P0.5/AD532
P0.6/AD631
P0.7/AD730
NIC
17
DAC OUT
D_EN
+5V
P2.7P2.6
+5V
U1TDA5051
DATAin
1
DATAout
2
VDDD
3
CLKout
4
DGND
5
SCANTEST
6
OSC1
7
OSC2
8APGND
9TXout
10
VDDAP
11
AGND
12
VDDA
13
RXin
14
PD
15
TEST1
16
R96 4K7Q6BC327
P2.1
Y1
8MHz
STROBE1
+5V
R19 330
AD0
C14
NC
D2HSMS2800
21
DAC OUT
SDA
R99
4K7
+5V
DATA
STROBE1LOCK2
4bus EN/DIS FIN
CLOCK
LOCK2
DATA
STROBE1
+5V
GNDCLOCK
STROBE2
LOCK1
STROBE2
LOCK1
R1 100
Y2
9.8304MHz
C4
47nF
+5V
C85100nF
J3
JUMPER2
12
34
J4
CON3
123
R12
2M2
+5V
AD0 PWR/FIELD
Page 34 of 58
TP1
NC
TP12 NC
TP7
NC
TP23NC
TP2
NC
TP24
NC
TP18
NC
TP3NC
U9
SA8028
VDDpre
1
GND2
GNDpre3
RFin+4
RFin-5
GNDcp6P
HP
7
PHI
8
GNDcp
9
PHA
10
IFin
11
NC
12
NC
13
VDDcp14
Rset15
REFin+16
REFin-17
CLK18
DATA
19
STROBE
20
PON
21
LOCK
22
TEST
23
VDD
24
TP13
NC
3.3V
L14
27nHC104100pF
C105100pF
GNDCP
TP4
NC
REF_FREQREF_FREQ
+5V
C121
3p3
R101NC
C122 10pF
U15
NC(MGA53543)
31
42
U18
MGA53543
31
42
U19
MGA53543
31
42
U20
NC(HMC188)
GND
1
IN2
GND
3
GND
4
GND
5
GND
6
OUT7
GND
8
C123
NC(0p5)
C124
NC(0p5)
C125
3p3
L20
NC(27nH)
L21NC(27nH)
3.3V
R102
4.7
R103
4.7
C126
22pF
C127
1nF
TP8NC
C128
1nF
C129
22pF
C130
NC(0p3)
C131
100pF C
132
100pF
R104NC
C133
NC(3p3)
J14SMA
1
2
L22 27nH
C134100pF
U8
TCXO_25Mhz
VCC
4GND
2
Vc1
OUT3
+5V
DATA
L23 27nH
C135100pF
L24NC(27nH)
C13610pF
R105
0
C137
1nF
R106
4.7
C138
NC(0p3)
TP14NC
LOCK1
RV120K
R36
56
R3468
STROBE1
C49
10pF
C3910pF
C441uF
C46
12pF
C38 100pF
C40 100pF
C37 10pF
R38
2K7
R30 39 R31 39
R3212
C451uF
C43
4p7
TP19 NC
C26
220uF 16V
TP9NC
RF_VCO1
R37
5K6
+5V
R48 4.7
R35
1K8
C29
100pF
R41 8K2
+3.3V
C34
100pF
+5V
R39
NC
CLOCK
R49 39K
C33
1uF
R53
1K
LOCK1
DATA STROBE1
R43 82
R45 15K
C41
10pF
R4639K
C48 4p7
R50
15K
RF_VCO1
C35
220uF 16V
R51
15K
C30
1nF
REF_FREQ
R52
39K
R97
0
C31
1uF
C42
1uF
R47
100
C47
4p7
C32
22nF
R54
820
C27
100pF
R40100
R29
10
C36
1nF
R42 150
R44
68
R98
100 R100
100
R107
22
CLOCK
DATA
STROBE1LOCK1
+ C141
100uF 6V(KEMET)
U7
SV1150-0702 VCO
GND
A
VtB
VDD
NGND
C
GND
D
GND
E
GND
FGND
GGNDHGNDIGNDK
GNDMGNDOGNDP
RfJ
GNDL
CLOCK
GND
L16
27nH C107100pF
C108100pF
3.3V
C281uF
R3310
TP15
NC
TP20 NC
TP21NC
TP10NC
TP5
NC
TP16
NC
TP22NC
TP6
NC
TP17
NC
C140
10nF
+ C142
22uF 10V(B)
Title
Size Document Number Rev
Date: Sheet of
<Doc> <RevCode>
FIXED OSCILLATOR
A3
1 1Thursday , August 30, 2007
Page 35 of 58
C1181uF
C98 4p7
R65
0
R91
15K
R58
10
+C119
220uF 16V
R92
15K
C79
22nF
R57
1K2
C70
1nF
R93
39K
REF_FREQ
L1227nH
C60
NC
C80
1uF
L515nH
R66
4.7
R88
100
RF_VCO
C97
4p7
+5V
C81
10uF 16V(R
ADIAL)
R95
820
C53100pF
C58
0p3
R552r2
R90 4.7
C87
1uF
R80 330
R84
68
3.3V
R81
0TP27NC
TP47NC
TP42NC
TP31NC
TP36NC
TP43NC
TP48NC
TP28NC
TP37NC
Title
Size Document Number Rev
Date: Sheet of
<Doc> <RevCode>
VARIABLE_OSCILLATOR
A3
1 1Wednesday , July 18, 2007
TP32
NC
TP29NC
TP44 NC
TP38NCTP40
NC
TP33NC
TP25
NC
L17
27nHC109100pF
C110100pF
3.3V
J15SMA
1
2
C64
3p3
Q5
BC848
D4
BBY51
C77
1uF
GNDCP
R76
56
TP45 NC
R59NC
C57 10pF
R74NC
U10
MGA53543
31
42
U11
MGA53543
31
42
U12
MGA52543
31
42
U13
HMC188
GND
1
IN2
GND
3
GND
4
GND
5
GND
6
OUT7
GND
8
C52
100pF
C62
0p5
C63
0p5
L18
27nH C111100pF
C112100pF
C65
3p3
L712nH
TP30NC3.3V
L1012nH
C99
10pF
R69
4.7
R70
4.7
C84 10pF
C73
22pF
C72
1nF
C100
100nF
C74
1nF
C75
22pF
J16
CON1
1
+C50100uF 6V(KEMET)
C115
100nF
C96
100pF
C94
1uFC95
12pF
C71
1pF
C89 100pF
C113
100pF
TP39
NC
C86 100pF
U14
SA8028
VDDpre
1
GND2
GNDpre3
RFin+4
RFin-5
GNDcp6
PHP
7
PHI
8
GNDcp
9
PHA
10
IFin
11
NC
12
NC
13
VDDcp14
Rset15
REFin+16
REFin-17
CLK18
DATA
19
STROBE
20
PON
21
LOCK
22
TEST
23
VDD
24
C114
100pF
R60NC
RF_VCO
C88 10pF
R71
1K8
C59
3p3
+ C139
100uF 6V(KEMET)
J8SMA
1
2R63
56
Q4AT41511
R78
0
C69
27p
R68
82
L6
27nH
R64 10 R62 10
L4
47uH(1210)
DATA
REF_FREQREF_FREQ
R61
39
LOCK2STROBE2
C56
10p
TP34NC
DATA
+3.3V
LOCK2
CLOCK
STROBE2
C76
NC
GND
+5V
CLOCK
L11
15nH
C92
4p7
C67
NC
C61 1.8pFC551pF
R77
39
C51
100pF
C68
NC
S
L9
12
R67 1K
R56 4K7
Q3AT41511
R72
68
R75
82
C78
100pF
+5V
+5VF
TP41NC
L19 27nH
C120100pF
R83 8K2
TP26
NC
L15
27nH
C83
100pF
R79 NC
C662p2
+5V
CLOCK
+C101
10uF 16V
C102
100nF
R89 39K
U17
LM1117-3.3
GND
1
VOUT2
VIN3
VOUT4
3.3V
TP46 NC
+C103
10uF 16V
C82
1uF
C116100pF
R94
1K
+5VF
C117100pF
STROBE2DATA
LOCK2
R73
NC
R82 82
R86 15K
+5V
R8522
C90
10pF
L13 27nH
R87 39K
C106100pF
L827nH
C54 10pF
Page 36 of 58
2.1.2.5. Power Amplifier
The power amplifier, installed in an appropriate cavity, is composed of a single
stage utilizing a wideband MMIC.
Inside the same stage a power detector is installed, whose output is utilized for
the power monitoring and for the ALC correct functioning.
Page 37 of 58
Page 38 of 58
Title
Size Document Number Rev
Date: Sheet of
<Doc> 1
ALIMENTAZIONI FINALE DI POTENZA
A3
1 1Tuesday , February 27, 2007
IC2B
LM358
+5
-6
V+
8V-
4
OUT7
R12 2K2
R9
100K
R8
100K
R5
100k
R7680
Enable Amplif ier
R6
150
TP12
-Pre1
R10
47K
TP13
-Dri1
R28
1k
C14
2u2 50V
R34 0R10(2512)
Enable Amplif ier
D2
C12V0
C15
2u2 50V
+15V
+ C114u7 20V
C16
2u2 50V
R25
100
JP3
JUMPER2
12
34
D7
1N4148
C17
2u2 50V
+15V
U9 L79L05/SO
VOUT1
GND
5
VIN2
VIN3
VIN6
VIN7
TP14
1
PWR_LEV_FINAL
D81N4148
-15V
TP5
1
D3C4V7
C71n
TP6
1
L1 10uH 396-3314+15V
PWR_LEV_FINAL
IC3A
LM358
+3
-2
V+
8V-
4
OUT1
J12 JUMPER3
1 23 45 6
IC2A
LM358
+3
-2
V+
8V-
4
OUT1
R1
1k
L2 10uH 396-3314
R2
100K
R310K
TP15
1
R17
100k
R4
6k8
RV32K
D4
mbrs360t3 +C4
100uF 10V
Pwr
+C5
100uF 10V
R19 33k
L3 10uH 396-3314
+C9
47u 10V
U3
78L05
OUT1
COM2
COM3
COM6
COM7
IN8
R13 6k8
C12
1n5
U8
LT1374CR
1Vc
3Vsw
4Gnd
5Vin
6BOOST
7Sense
2nSHDN Gnd
8
R14 22k
R18 12k
+PRE
R11 10k
R21 8k2
TP7
Detector
1
Pwr
R30
10k
TP3
1
-15V
R31
10k
R32
200K
C18
47nF
D6
SMBJ12C
R35
0R
RV1NC
RV2
NC
R16
330
R20
330R22
470
C8100n
R33
1k
R15
470
R27 0R10(2512)
C13
220nF
+15V
J11
CONNECTOR DB15
815714613512411310291
COM
+FIN
-15V
R29
200K
RV41K
R23
27R24
1k
-PRE
TP8
+Dri
1
TP9
+Fin
1
TP10
+Pre
1
REGOLARE RV3 PER LA CORRETTA
VISUALIZZAZIONE DEL VALORE
DI POTENZA SUL DISPLAY
+15V
C10
100n
TP11
-Fin1-FIN
-DRI
+15V
R26
22
+DRI
D9
1N4148
+C1947uF 16v
TP1
1
TP4
1
PWR_LEV_FINAL
Page 39 of 58
2.2. Receiver
The receiving system is composed of two units:
- An outdoor unit, the RF Head, which lies in a waterproof box
comprehending all the RF/IF conversion circuits, the control from the
IDU and the management of the signals.
- An indoor control unit in a rack standard 19” with the power supply,
the user interface and the remote control interface
Page 40 of 58
Figure 5 Receiver block diagram
Page 41 of 58
2.2.1. Receiving RF Head Control Unit RCU
This indoor unit is appointed to feed, over a single output line, the DC Supply
(48 V dc) and the data subcarrier for the programming of the Head, and
receives the 70 MHz IF signal coming from he external RF Head.
An appropriate equalization network permits to compensate for the distortions
introduce by the connection cable with the RF Head.
Figure 6 RCU
As can be easily noted from the block diagram of Figure 1 2, the receiving
head control unit is composed of the following boards:
1. POWER SUPPLY
2. MICROCONTROLLER
3. KEYPAD
4. RX CONTROL UNIT
5. MOTHERBOARD
Page 42 of 58
2.2.1.1. Power Supply
See 2.1.1.1 .
2.2.1.2. Microcontroller
The microcontroller provides for the following functions:
• Programming of receiving frequency.
• Management of keypad, display and leds on the front panel
• Setting of equalisation network of the connection cable with the RF Head
(10/100/200m).
• Alarms management
• Data communications with remote control interface.
For the electrical scheme, see 2.1.1.2
2.2.1.3. Keypad
Keypad board is directly installed on the front panel.
It lodges the LCD display 24x2, 8 leds and 6 buttons for menu browsing.
Page 43 of 58
Title
Size Document Number Rev
Date: Sheet of
1 1
KEYPAD Control Unit
A3
1 1Thursday , October 04, 2007
U2
MCP23016-I/S0
GP1.02
VDD
20
GND
1
GND
8
GND
19
GP1.13
GP1.24
GP1.35
/INT6
GP1.47
CLK9
TP10
GP1.511
GP1.612
GP1.713
SCL14
SDA15A016A117A218GP0.021GP0.122GP0.223GP0.324GP0.425GP0.526GP0.627GP0.728
U3_GP1.5
GP1.0GP1.1GP1.2GP1.3
GP1.4
GP1.5
U3_GP1.4
U3_GP0.5
U3_GP0.1
U3_GP0.3
U3_GP1.5
SCLGP1.7GP1.6
U3_GP1.2
U3_GP0.2
U3_GP0.0
U3_GP1.6
U3_GP1.3
U3_GP1.0
U3_GP0.4
U3_GP1.7
GP0.7
U3_GP0.7
GP0.4GP0.5GP0.6
U3
MCP23016-I/S0
GP1.02
VDD
20
GND
1
GND
8
GND
19
GP1.13
GP1.24
GP1.35
/INT6
GP1.47
CLK9
TP10
GP1.511
GP1.612
GP1.713
SCL14
SDA15A016A117A218GP0.021GP0.122GP0.223GP0.324GP0.425GP0.526GP0.627GP0.728U3_GP1.0
GP0.1GP0.2GP0.3
U3_GP1.3U3_GP1.2U3_GP1.1
GP0.0
U3_GP1.5
U3_GP1.4
SCLU3_GP1.7U3_GP1.6
U3_GP0.5U3_GP0.6U3_GP0.7
U3_GP0.3U3_GP0.4
U3_GP0.0U3_GP0.1U3_GP0.2
+5V+5V
+5V+5V
C333pF
+5V
PRG
R363K9
D10
LED BI-COLOUR
+5V
R20270
+5V
R37390
SDA
R21270
D11
LED BI-COLOUR
RN510K
1234
678
5
R22270
R23270
RN610K
1234
678
5
D12
LED BI-COLOUR
R24270
RN710K
1234
678
5
R25270
D13
LED BI-COLOUR
C4
100nF
R26270
RN810K
1234
678
5
R27270
D14
LED BI-COLOUR
+5V
U3_GP1.1U3_GP0.6
R28270
R29270
D15
LED BI-COLOUR
+5V
U3_GP1.6
R30270
R31270
D16
LED BI-COLOUR
R32270
+5V
R33270
D17
LED BI-COLOUR
R34270
R35270
ENTERESC
SU
DESTRAGIU
SINISTRA
RX0TX0SCLSDA
J2
CON16AP
+1
+3
+5
+7
+9
+11
+13
+15
+2
+4
+6
+8
+10
+12
+14
+16
SINISTRA
C133pF
R13K9
U3_GP0.4
U3_GP0.5
U3_GP0.6
+5V
PRGGP0.1
GP0.3
GP1.2GP1.3
GP0.2
GP0.0
GP1.5
GP1.6
GP1.0GP1.1GP0.6
GP0.4
GP1.7
GP1.4
GP0.7
GP0.5
+5V
+5V
SINISTRA
U3_GP0.3
U3_GP0.0
U3_GP0.1
U3_GP0.2
GP0.1
GP0.2
GP0.3
GP0.0
GP0.7
GP0.4
GP0.5
GP1.7
GP0.6
GP1.4
GP1.5
GP1.6
R18
270
SU
GP1.2
GP1.3
GP1.0
GP1.1
GIU
U3_GP0.7
+5V
ENTER
P1
CONNECTOR DB9
5 9 4 8 3 7 2 6 1R19390
DESTRA
U3_GP1.1
U3_GP1.0
SDA
ESC
SW1
SW PUSHBUTTON-SPST-2/SM
1 4
2 3 SW2
SW PUSHBUTTON-SPST-2/SM
1 4
2 3 SW3
SW PUSHBUTTON-SPST-2/SM
1 4
2 3 SW4
SW PUSHBUTTON-SPST-2/SM
1 4
2 3
RX0
SW5
SW PUSHBUTTON-SPST-2/SM
1 4
2 3
U3_GP1.7
SW6
SW PUSHBUTTON-SPST-2/SM
1 4
2 3
RN110K
1234
678
5
TX0
RN210K
1234
678
5
RN310K
1234
678
5
C2
100nF
RN410K
1234
678
5
U3_GP1.2
U3_GP1.3
D1
LED BI-COLOUR
R2270
R3270
D2
LED BI-COLOUR
R4270
R5270
D3
LED BI-COLOUR
R6270
R7270
D4
LED BI-COLOUR
R8270
R9270
D5
LED BI-COLOUR
R10270
R11270
D6
LED BI-COLOUR
R12270
R13270
D7
LED BI-COLOUR
R14270
U3_GP1.4
R15270
D8
LED BI-COLOUR
R16270
R17270
D9
LED
Page 44 of 58
2.2.1.4. Rx Control Unit
This board provides for the mixing over a single output line (on a SMB
connector connected to the LEMO connector located in the back panel) of DC
supply (48 V dc) and data subcarrier.
On the same link it receives the 70 MHz IF signal from the receiving RF Head.
A 70 MHz filter followed by an equalizer eliminates any interference which can
affect the IF signal received.
Moreover, a second equalization network compensates for the losses and
distortions introduced by the cable; three different networks are provided,
tuned on a 10, 100 and 200 m length of the cable.
The right equalization network can be selected by keypad and display.
Page 45 of 58
Title
Size Document Number Rev
Date: Sheet of
IF FILTER AND EQUALIZER 1
RX_CONTROL_UNIT_V3
A3
1 1Thursday , July 12, 2007
R28
47k
C38 15pF
C37 10pF
C45
6p8
L1452.4nH (2 3/4 diametro f ilo=0.7)
C73 47pF
C39 15pF
C40 4p7
C74
nc
C41120pF100V(0603)
R5
1k8
R71k8
R9
1k8
R10 270
R11 75
R12
100
R13150
R14 75
R15 82
R16 75
L16355nH (12 3/4 diametro f ilo=0.7)
R17 75
R18 220
R19 75
R20 150
+15V
R46
820
C12
1nF
IF_L
C56 15pF
C1
1nF
C2
1nF
C3
1nF
C4 33pF
C43
12pF
C5 68pF
C6
10nF
C7
10nF
C8
10nF
R47
82
EQ_SEL_2_P
EQ_SEL_1_P
EQ_SEL_0_P
IF_L
C44
27pF
DC + subcarr
Q4
BFP196
Q5
BFP196
L17
278nH (7 3/4 diametro f ilo=0.7 )
R383k3
R39560
C75
2p7
R40 390
R55
560
R56560
DC + subcarr
C27 1nF
C28 1nF
L10 4u7
J1MPX IN
1
2
C2910nF
C30
4p7
L20 280nH (6 1/4 diametro f ilo=0.25)
C3410nF
R57560
C80 8p2
L13 4u7
R61560
C35 1nF
GND_EARTH
C25 27pF
+15V
R29
68
C59
10nF
R30
27
C26 18pF
R36
120
L21 370nH (9 1/4 diametro f ilo=0.25)
C33 10pF
R48560
R49560
C51 15pFC52 15pF
C53 15pF
C57 3p9
L30
157nH (5 3/4 diametro f ilo=0.7)
L19 205nH (6 1/4 diametro f ilo=0.7)
C71 3p3C72 3p3R50
820
R5115
C81 8p2
R52
820
C50
1uF 16V
R21 22
R233k3
R24560
R25 470
R26
560
R27560
C9 1nF
C10 1nF
L6 4u7C17
10nF
L22
149nH (5 1/4 diametro f ilo=0.7)
C244p7
C31
10nF
L11 4u7
IF_L
L1596.5nH (4 3/4 diametro f ilo=0.7) R2 22
D4BA682
C11
1nF
L9
470nH
D5BA682
+15V
C76
3p3
D6BA682
DC + subcarr
C77
82pF
D7
HSMS 2800
C78
56pF
+15V
C79
33pF
C47 NC
C42120pF100V(0603)
R53
820
R5415
R60
820
L18 152nH (5 1/4 diametro f ilo=0.7)
EQ_SEL_0_P
EQ_SEL_2_P EQ_SEL_1_PEQ_SEL_0_PEQ_SEL_1_P
EQ_SEL_2_P
C46 8p2
+15V
GND_EARTHD8 HSMS 2800
C54 4p7C55 4p7
C4810nF
Q3
BFP196
R22
680
R43150
R37
560
R44 82R313k3
C36 18pF
R7168
R32560
R33 390
R34
560
R35560
C20 1nF
C21 1nF
L7 4u7
R45150
C2210nF
C23
4p7
C3210nF
R41560
L12 4u7
R42560
C19 1nF
R1 56
R3
NC
J2
IF OUT
1
2
+15V
C49
10nF
J3
IF AUX
1
2
Page 46 of 58
J14
CON10AP
1 23 45 67 89 10
EQ_SEL_0_P
EQ_SEL_1_PEQ_SEL_0_PEQ_SEL_1_P
EQ_SEL_2_P
EQ_SEL_2
C67
47nF
L847uH
U5
TDA5051
Osc28
APgnd9
VDDa13
Test16
VDDd3
Data in1
Data out2
VDDap11
TXout10
RXin14
Agnd12Clk out
4
Scant6
PD15
Dgnd5
Osc17
C68
27pF
C6927pF
Y38Mhz
+C60
22uF 100V(RADIAL)
R59 2M2
+5V
P0.0 Data in
P0.1Data outGND_C
SDA1
+5V_C
SCL1 SCLSDA
J13
CON10AP
1 23 45 67 89 10
L27 1uH-2A(AXIAL)L28 1uH-2A(AXIAL)
L29
470uH-5A C58680pF 100V(1206)
D124v 7
DC + subcarr
C70
100uF 6.3V
+5V
C61680pF 100V(1206)
R58100
+15V
+5V+24unreg
-24unreg
-15V
J6
CON16A
1 23 45 67 89 1011 1213 1415 16
+15V
C6410nF
U4
PCF8574
Vss8
P49
/INT13
Vdd16
A23
A01
A12
P611
P510
SCL14
P712P0
4
P26
SDA15
P15
P37
J11
Pwr 26V
12
+DC
DC
F3
FUSE
+15V
J18
CONN SOCKET 3
123
IF_LDC + subcarr
J19
CONN SOCKET 3
123
GND_EARTH
DC + subcarrIF_L
+15V
+15V
GND_EARTH
-DC
+5V
SDA
Data in
SCL
Data out
EQ_SEL_1EQ_SEL_0
R70
10k
C651uF 16V
C63
47nF
-
+
U10A
LM358
3
21
84
-
+
U10BLM358
5
67
-
+
U11A
LM358
3
21
84
EQ_SEL_0_P
EQ_SEL_1_P
EQ_SEL_2_P
C6647nF
L547uH
DC
Title
Size Document Number Rev
Date: Sheet of
CONTROL 1
RX_CONTROL_UNIT_V3
A3
1 1Thursday , July 12, 2007
+5V
+5V
C93
100nF
-24unreg
C94
100nF
C95
100nF
+24unreg
C96
100nF
-15V
+15V
+15V
-15V
R69
10k
D18
S3K7
IN0IF_LIN1
OUT1 EQ_SEL_2_P
Page 47 of 58
2.2.1.5. Motherboard
See 2.1.1.5.
Page 48 of 58
2.2.2. Receiving RF Head MR
The external RF head receives, on a single input line, from the control unit, a
signal which is the sum of DC supply and data subcarrier; moreover, it sums
the IF received signal to the previous ones, in order to provide it to the control
unit.
Figure 7 Rx Head
As results from the block diagram of Figure 5, the receiving head is composed
of 5 boards:
1. SUPPLY
2. FIRST IF DOWN-CONVERTING MIXER
3. MULTIPLIER AND RF MIXER
Page 49 of 58
4. LOCAL OSCILLATORS
5. IF AMPLIFIER
Details and related electric schemes will be presented in the following
paragraphs.
2.2.2.1. Supply
This boards provides for the separations of the three signals which make part
of the multiplex transported over the RG-216 cable coming from the control
unit: the data subcarrier is sent to the local oscillators boards, where the
controller of the head is installed; the 70 MHz IF signal received from the First
If Down-Converting Mixer is sent to the control unit; the 48V DC supply is
utilized to generate all the voltages necessary for the functioning of the boards
composing the head.
Page 50 of 58
Page 51 of 58
2.2.2.2. Multiplier and RF mixer
This board converts the signal coming from the antenna to the first IF (1100
MHz). The conversion function is performed by a wide-band diode passive
mixer.
On the output line of the mixer is inserted a band-stop filter in order to
attenuate the image frequency, located at a 2200 MHz distance from the
central frequency of the link.
The local oscillator is first of all multiplied in the multiplier cavity by three
duplication stage and then used for the down-conversion process.
Multiplier and mixer are installed in opportune RF cavity.
Page 52 of 58
Page 53 of 58
TP2
+15V
R24 1K R25 10k
D3C4V7
21
+
C210u 16V RV26
4K7
-Vb
TP1
T POINT S
-15V
-Vb1
TP3
T POINT S
L17
1uH
+ C68220uF 6V
TP5T POINT S
R27 NC
R30 NC
+5VA
R31470
R32470
TP4
T POINT S
R33 100
R34 NC
+C55
2u2 50v
C56
2u2 50v +C57
47u 16V
IC1
LM2671
VIN7
OUT8
GND
6
FB4
ON/OFF5
Cb
1SS
2
L5 100uH 5.4 A
D5
MBRS360T3
21
+C58
47u 16V
+5VA
R26 3k3R28 1K
C59
10nf
C60
10nf
CONV POS BIAS_AUXJ24
+VP2
1
-15V
+15V
+15V
R35
47k
RV2210K
J25
-VP2
1CONV NEG BIAS_AUX
R21 2K2
R22 220
-15V
R23
47K
D212V7
21
CONV POS BIAS
d226V2
21
+ C21
10uF 16V RV2110K
CONV NEG BIASJ22
-VP
1J23
+VP
1
J5
CONNECTOR DB15
815714613512411310291
R29
10k
RV304K7
Title
Size Document Number Rev
Date: Sheet of
1 <RevCode>
MOLTIPLICATORE E MIXER
A3
1 1Friday , February 23, 2007
Page 54 of 58
2.2.2.3. First If Down-Converting Mixer
The first conversion output signal (1100 MHz), before being converted to the
second IF (70 MHz), is amplified and filtered in order to remove the image
frequency (140 MHz offset) through a 7 cells dielectric resonator filter of the
same type of that one installed on the first up-converter of the transmitter.
The 70 MHz passes successively through a fixed gain amplifier, a phase
equalizer and a 70 MHz band-pass filter.
Page 55 of 58
C50047pF
0603
IF_1G_IN
C28868pF
0603
C29033pF
0603
C29233pF
0603
L6368nH
1812SMS
L6868nH
1812SMS
C29768pF0603
C305270pF0603
C307330pF0603
L6468nH
1812SMS
C299100pF0603
L66
68nH
1812SMS
L6247nH
1812SMS
L6968nH
1812SMS
C29468pF
0603
C29333pF
0603
L6547nH
1812SMS
C28933pF
0603
C291
27pF0603
C303470pF0603
C301100pF0603
L6768nH
1812SMS
C304NC
0603
C30618pF0603
+15VF
L40 NC
J58
CON4AP NS
13
24
C88
12pF
+5VA
C296 3pF-10pF
Title
Size Document Number Rev
Date: Sheet of
Conv erter 1
MIXER_RX_1G
A3
1 2Friday , July 13, 2007
R163.3nH(0603)
R17
NC
R18
NC
L38
18nH
R141
NC
U12 LM7805C/TO220
IN1
OUT3
GND
2
J57
CON4AP NS
13
24
+C5310uF 25V(case D)
+C83
10uF 25V(case D)
L17142nH 6 1/2(MC152 TOKO)
L4112nH 5 1/2(MC152 TOKO)
R9
NC
R100
C56 15pFC57 15pF
C5818pF C59 18pF
C60NCC61NC
R15
330
C62NC
C6347pF
L231uH
C643p3
C65 47pF
L10142nH 6 1/2(MC152 TOKO)
L16112nH 5 1/2(MC152 TOKO)
C89
12pF
U9
MGA53543
31
42
C66 1nFC69
NCL201uH
C73
10nF
R134680
R135680
R136680
C75
100nF
C74
10nF
C302
220pF0603
R47680
L18
1uH
C76
47nF
L70
120nH
1812SMS
R133560
C72
1nF
Q5
BFP196
L214u7
R363K3
R34680
C130100nF
C71
1nF
R38
180
C67
47nF
C70
10nFR35
47
C23
22pF
C24
1nF
C120
27pF
U13
MGA53543
31
42
L3533nH
C121 27pFloc osc
C791nF
Q6BFP196
L22
4u7R453k3
C27100pF
C82
1nF
J12
f ilter IN
1
R48390
C77
10nF
C81
10nFR4468
L19
C.C
J13
f ilter OUT
1
C68
39pF
R39 680
+15VF
C28100pF
+15V
J5
CONNECTOR DB15
815714613512411310291
COM
+15V
RV6500
L1100nH
R46
47
+5VA
R40560
U5
MGA53543
31
42
C17
47pF
C18
47pF
L718nH
C21
22pF
C20
1nF
L39120nH1812SMS
L2
4u7
J3
BNC
1
2
C78
10nF
C129
1nF
R33680
L3618nH
+15VF
C54NC
C295
33pF0603
R43NC
R21270
R23100
J1
SMB
1
2
R228R2
R248R2
R25150
R26
8R2
R1347
R27 8R2
R28150
J7
SMB
1
2
U3
RMS30
GND
2
LO1
GND
3
RF4
IF5
GND
6
EQUALIZER BYPASS
L13
18nH
L14
33nH
C26100pF
R141=0
C298 3pF-10pF
+5VA
R37 270
C80
10nF
C84
10nF
C85
22pF
C86
22pF
C55
NCC300 3pF-10pF
C87 1nF
L41
1uH
C2910nF
C3010nF
FLP_1GHz LTF3216
IN3
GND
4
GND
2
OUTPUT1
GND
5
+5VA
Page 56 of 58
2.2.2.4. Local Oscillators
See 2.1.2.4
2.2.2.5. IF Amplifier
In this board the 70 MHz amplification circuit is installed.
Its gain is controlled by the signal supplied by the IF level detector, in order to
fix the last one to the nominal value (AGC function).
Page 57 of 58
C117
1nC118
1u
D12
HSMS-2800
D13
HSMS-2800
R11533KR117
2K2
R114
3K3
+15V
R105470
C130100nF
R53
1K
R8612
AGC
R49
40K2-1%R50402K-1%
R56
40K2-1%
C112
1n
R102100
C119
NC
R130100(2512)
R67 150K
D7
5082-3081
C107
1n
R106
220
R118
220K
R59 10K
-
+
U12A
LM358
3
21
84
-
+
U10
LF356
3
26
7 14 5
R52
270K
RV110K
+15V
R643K9
Rv510K
+15V
R62
402K-1%
R63
1K
R137470
R107470
R8712
C113
1n
R68 120K
D8
5082-3081
C108
1n
R108
270
Q9BFR93A
L32
4u7
R126
10K
R913K9
R122
2K2
R791K8
R73390
R127
2K2
C104
1n
R97470
C88
10n
C98
10n
RV35k
C91
47n
SW1
SW_T_SPDT
1
32
AGC
R6110K
J5
CONNECTOR DB15
815714613512411310291
COM
C13110nF
+15V
R10082
R123
100K
R120
2K2
R125
2K2
D10
82 OHM(0805)
RV21K
+15V
C111
NC
R112
56
J10
SMB
1
2
-
+
U11
LF356
3
26
7145
R119
8.2
D11C.C
C116
47n
D6
NCC94
1n
R138470
R83
56
+15V
R81
820
R128
22K
R85
820
C95
47n
MANUAL
LEVEL
AGC
LEVEL
INSTRUMENT
CALIBRATION
R103560
SQUELCH
INSTRUMENT
CALIBRATION
R8218
C110
1n
L25
4u7
L26
4u7
Q7BFP196
L30
4u7
L27
4u7
R843K9
L28
4u7
IF IN
C101
1n
IF AUX
IF MON
IF OUT
R94330
C96
10n
D4LL4148
R142100
D3LL4148
D5LL4148
C83
10n
D142V7
C102
1n
C86
100n
C84
10n
D15
4V3
+15VC85
10n
D16
6V2
21
L29
27nH(0805 HQ)
R109560
R8812
C114
56p
R69 120K
D9
5082-3081
L23
4u7
C109
1n
R110
270
L24
4u7
Q10BFP196
L33
4u7
R116
NC
R923K9
R801K5
R113
NC
R74470
C105
1n
R98390
C89
10n
C99
10n
C92
47n
R101
680
R95
82
R66
NC
R65
NC
R75470
Title
Size Document Number Rev
Date: Sheet of
IF Amplif ier 1
AMPLIFICATORE IF
A3
2 2Thursday , April 12, 2007
R139390
J8
SMB
1
2
R111560
R8912
C115
1n
FIELD
Q11BFP196
L34
4u7
R933K9
R140390
R76470
C106
1n
R99390
C100
10n
C93
47n
R77470
J9
SMB
1
2
J11
SMB
1
2
Q8BFR93A
L31
4u7
R903K9
R55
3K3
R511K
R104270
R782K2
R601K
R72390
RV410K
+15V
C103
1n
R96270
+15V
C87
10n
C97
10n
C90
47n
AGC
+15V+15V
FIELDFIELD
Page 58 of 58
2.2.2.6. Motherboard
See 2.1.1.5