UNIT DESCRIPTION
The input to the unit is a wideband AM and PM
modulated IF carrier in the VHF band. The IF
signal is power divided into four (4) channels
and up-converted to separate UHF bands. Any
combination of the four bands can be selected
and combined in one primary RF output. The
output level is controlled by a four bit digital
attenuator with 45dB range. The unit has a
second, selectable RF output to monitor the
primary RF output.
MODEL NO.
CHD09297
4 Channel Up-Converter
MFA
PART IDENTIFICATION
5.00
J1 PIN DESIGNATIONS
NOMENCLATURE
BD_0
PIN NO.
J1-1
J1-2
J1-3
J1-4
J1-5
J1-6
J1-7
J1-8
J1-9
J1-10
J1-11
J1-12
J1-13
J1-14
J1-15
J6 F3
J8
BD_1
BD_2
BD_3
ATT_0 (3 DB)
ATT_1 (6 DB)
J5 F2
J2 IF
J4 F1
J7
4.50
ATT_2 (12 DB)
ATT_3 (24 DB)
RF SAMPLE SELECT
+15VDC
GND
J3 F0
J1
-15VDC
GND
+5 VDC
-5.2 VDC
2X SCREW LOCK ASSY
M24308/26
CONNECTOR, MALE, 15 PIN
M24308/4-11
7X CONNECTOR, SMA
FEMALE
.670
.340
.670
.300
1.00
MIXER
SWITCH
SWITCH
IF
BPF
J6
SWITCH
4 WAY POWER DIVIDER
IF
BPF
J5
SWITCH
IF
BPF
J4
SWITCH
F3+IF
BPF
ADJUSTABLE
ATTENUATOR/
RF AMPLIFIER
SWITCH
F3+IF
BPF
ISOL
AMPL
J8
SPST
BLANKING
SWITCH
COUPLER OUTPUT
-11dB
COUPLER
BPF
J7
MAIN
OUTPUT
SAMPLING
OUTPUT
F2+IF
BPF
F2+IF
BPF
J2
IF
INPUT
LO (F2)
INPUT
SWITCH
SWITCH
F1+IF
BPF
F1+IF
BPF
4 WAY POWER COMBINER
LO (F3)
INPUT
SWITCH
SWITCH
LO (F1)
INPUT
SWITCH
SWITCH
F0+IF
BPF
F0+IF
BPF
4-BIT
ATTEN
3,6,12,24
IF
BPF
J3
LO (F0)
INPUT
DA I C O
In d u s t r i e s
Rev. 6 / Iss. 2
DAICO [ DAICO INDUSTRIES, INC. ]
