Codan Radio MT-4R - Manual (Page 48)

UG-001 Daniels MT-4R and MT-4D Radio Systems
www.danelec.com
Chapter 6: Radio System Components 40
User
Guide
Channel Switching Range
Although the receiver or transmitter channels can be programmed for any frequency in its band, the
Maximum Switching Range of the module must not be exceeded or the module will require hardware
re-tuning. The maximum switching range of the modules are listed in the Technical Notes, and are
typically shown as +/- 1 MHz, +/- 2 MHz or Unlimited, based on the individual specifi cations of the
module. For example, a VHF receiver may be programmed for any frequency between 136 to 174 MHz,
but the front end helical fi lter has a typical pass band of 5 MHz, requiring re-tuning if two frequencies
are used that are outside of that pass band.
Antenna Relay Activation
The motherboard on the subrack contains a set of jumpers that are used to activate the optional antenna
relays in the System Monitor module. Figure 6-3 shows the location of these jumpers. The relays are
typically set with the PTT and PTT OUT signal lines activating the relays.
Figure 6-3: Subrack / Motherboard Rear View
+
+
+ +
+
+
+ +
+
+
C89
R84
C88
R83
R85
C86
C87
JU45
JU46
JU47
JU48
JU49
JU50
JU51
JU52
JU53
JU54
JU55
JU56
JU57
JU58
JU59
JU60
JU61
JU62
JU63
JU64
JU65
JU66
JU67
JU68
R97
Q4 JU70
C98
C102
R90
R94
R89 C99
R88 R91
C100
R86 R87
R93
R81
R80
R82
R92
C82 C83
R95
R96
CR35
Q3
CR38
JU73
C94
C95
C96
C101
C93 C80
C81
FIL2 FIL1
C92
JU71
A
B
CR36
Q2
U86
U81
U83
U84
U85
C103
R98
R99
R100
R101
R102 C97
JU79 JU78
BC807-25
5k11
10k0
100nF 10µF
10k0
100nF
22k6
10k0
100nF 220pF
MC33172 100k 100k
10k0 MC14066BD
10k0
22µF
22µF
22µF 22µF
ICL232BE
MC14066BD
100R
604R
56R2
10k0 BAS16
MJD112
BC807-25
MBZ5233B
18K2
1K00
10µF 10µF
LP2951CM
4.7µF
10nF
100nF
1µF 100nF
1µF
100nF
274R
100nF
1R00
10R0
BYD17J
10k0
10k0
10k0
10k0
10k0
10nF
+
C85
+
+
1
5
1
2
3
4 OPEN
FUSE F1 J8
CR1
CR2
SYSTEM MONITOR
J6
ALARM MODULE
J7
C7 C8
RFC2
C1C2C3
JU40 13.8 V
CR31
CR32
CR33
CR34
R15
R16
R17
R18
1 10 J68
TRZ1
TRZ2
RX B
J5
JU44 JU43
J20
RX A AUDIO
JU1 RX A 9.5 V
C4 C5 C6
JU36 JU37 JU38 JU39
TX B J4
CR11 CR12 CR13 CR14
CR15 CR16 CR17 CR18
JU9 JU10 JU11 JU12
JU3 JU4 JU5 JU6
JU13 JU14 JU15 JU16
JU18 JU19 JU20 JU21
CR23
CR24
CR25
CR26
R7
R8
R9
R10
CR6
JU32 JU33 JU34 JU35
C10
RX A
J3
TX A J2
M3
CONTROL P1
CONTROL
MODULE J1
RFC1
CR3 CR4 CR5
CR7 CR8 CR9 CR10
CR19
CR20
CR21
CR22
R3
R4
R5
R6 JU24 JU25 JU26 JU27
JU42 JU41
JU28 JU29 JU30 JU31
C9
J21 RX A AUDIO
JU 2 RX A 9.5 V
JU8 JU7
14 1 J67
J9
J72
J73
+
U82
C84
1 10 J74
JU69
U80
1 2 3
C90
C91
CR27
CR28
CR29
CR30
R11
R12
R13
R14
JU72
CR37
JU81 JU80
B A B A
D B Z D B Z D B Z D B Z D B Z
1N6378
1N6375
MR751
MR751
100nF 10nF 1nF
100nF
10nF
REMOTE INTERFACE
100nF
10nF
1nF
100nF 10nF
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
100K
10mF
220µF
1mF
LM383
100µF
xxxxxx
gg
JU17 J22
JU22 JU23
AMPL AUDIO
9.5 VDC IN / OUT
TX A RELAY
J57
J58
J59
J60
J61
J62
J63
J64
PTT
JU8
A B
WITH
TIME
OUT
NO TIME
OUT
J32
J33
J34
TX A SYNTH
J16 No.1
J17 No.2
J48 J66
J41
J42
J43
J44
J45
J46
J18 J19
ISO COR
J12 J13
TX BAL I/P
J10 J11
RX BAL O/P
J35
J36
J37
J38
J39
J40
RX B RELAY J21
RX A AUDIO
JU 2 RX A 9.5 V
PTT-
COR MON
RX MUTE-
COR MON
TX STANDBY
TYPE 84 MOTHERBOARD 50016-02
DANIELS ELECTRONICS LTD
MADE IN CANADA
COR-
COR MON
MIC PTT-
COR MON
SYNTH PROG
RXA
TXA
RXB
TXB
TX A SUBTONE
INPUT
RX A I/O
SPARE
TX B
AUDIO
CNTL
B
A
RX A
CHANNEL SELECT
B
A
J29
J30
J31
RX A SYNTH
TX B
AUDIO
CNTL
J65 J69 J70
TX A MIC
TO TX B
TX A MIC
TO TX B
RX A RELAY
MIC PTT A-
MUTE RX A
TX B
CHANNEL SELECT
B
A
J26
J27
J28
TX B SYNTH
J16 No.1
J17 No.2
J47
TX B SUBTONE
INPUT
RX B I/O
SPARE
PTT
JU7
A B
WITH
TIME
OUT
NO
TIME OUT
TX A RELAY
J57
J58
J59
J60
J61
J62
J63
J64
R2
J49
J50
J51
J52
J53
J54
J55
J56
R1 TX B RELAY
RX B
CHANNEL SELECT
B
A
J23
J24
J25
RX B
SYNTH
RX B RX A
TX B TX A
RX B RX A
TX B TX A
J75
1 2 PWR FAIL
J71 1 3
TX A
CHANNEL SELECT
SW1
TP2
TP1
9.5 Vdc
REGULATED
POWER INPUT / OUTPUT
(NOT TYPICALLY USED)
POWER INPUT
+10 to +17 Vdc
+13.8 Vdc NOMINAL
POWER
SUPPLY
INPUT
15 AMP FAST
BLOW FUSE
(5604-5GAGC150)
AUXILIARY
CONNECTOR
B SIDE
CHANNEL SELECT JUMPERS
A SIDE
CHANNEL SELECT JUMPERS
CHANNEL SELECT
PULL-UP OR
EXTERNAL CONTROL
JUMPERS
ANTENNA RELAY
ACTIVATION
JUMPERS
CHANNEL SELECT
PULL-UP OR
EXTERNAL CONTROL
JUMPERS
REVERSE
VOLTAGE
DIODES
(2001-MR751000)
TRANSIENT SUPPRESSORS
(18 V = 2007-1N637800)
(10 V = 2007-1N637500)