FM600 User’s Manual
Board Layouts and Schematics
EP
DWG. NO. REV.
1234 78
A
B
C
D
E
F
1 234 678
A
B
C
E
F
5
THESE DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF
INTERNATIONAL RADIO AND ELECTRONICS CORP.
AND ARE NOT TO BE REPRODUCED, COPIED OR USED AS THE BASIS
FOR THE MANUFACTURE OR SALE OF APPARATUS OR
DEVICES WITHOUT PERMISSION.
SHEET
SCALE : NONE
PROJ NO.
FILENAME:
DWG . NO .
REV.
TITLE:
UNCONTROLLED
UNLESS OTHERWISE MARKED IN RED INK BY CM AS A
CONTROLLED COPY, COPIES OF THESE DOCUMENTS
INCLUDING ASSOCIATED ELECTRONIC REPRODUCTIONS
ARE FOR REFERENCE ONLY.
APPROVALS
DWN
CHK
CM
PE
DISTRIBUTION
E . C . N. REV DESCRIPTION
APPROVALS
PECHK CMDATE DWN
REVISION HISTORY
65
SIZE
B
B_L_SHT1_A.DOT REV. A
INTERNATIONAL RADIO AND ELECTRONICS CORP.
25166 LEER DRIVE ELKHART, IN. 46514
574-262-8900
WWW.IREC1.COM
IREC
J1
RF IN
J2
BNC
C1A
10pF
C1
15.4pF
C3
40.9pF
C5
38.9pF
C7
37.7pF
C9
14.1pF
C10
2pF
C19
47pF
C12
47pF NPO
C13
0.001uF
C14
0.01uF
C15
.01
C16
0.001uF
C2
1.35pF
C4
7.1pF
C6
9.3pF
C8
5.13pF
C11
47pF NPO
L1
OPEN
L2
90.5nH
L3
94.1nH
L4
87.5nH
L5
77.9nH
D1 1N6263
D2
1N6263
1
2
3
4
5
HD2
1X5
R6
1K
R9
1K
R7
20K
R8
20K
R4
10
R2
73.2
R3
10
R5
73.2
NOTES:
=======
UNLESS OTHERWISE SPECIFIED
1) ALL RESTORS ARE IN OHMS, 1/4W, 5%
2) ALL CAPACITORS ARE IN MICROFARADS
3) C1-C10 AND C17 ARE CIRCUIT BOARD PADS
FWD
REFL
C17
3.5pF
C18
47pF
C20
.01
R1
100
R11
100K
R10
10K
D3
1N6263
1
2
3
HD1
RF MONITOR
Aprox. 7V RMS
with 200w RF in
RFV
RF OUT
4) IF NECESSARY, SELECT R2 FOR SWR READING OF
1.1 OR BETTER WITH 50 OHM LOAD R5 = R2
SHIELD
J
REDRAWN
12-05-03
DW
DW
03-14-02
DP
C1-C10 AND C17
ARE PWB COPPER AREAS
FM LOW PASS FILTER #2
103209-SCH
J
Schematic Diagram: FM Low Pass Filter #2
FM600 User’s Manual
6-20
To Next Page
Loading...
