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Spectra Engineering MX800 - Circuit Diagram: MX800 RX VCO CIRCUIT DIAGRAM; RX VCO Circuit Diagram Details (continued)

Spectra Engineering MX800
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1 2 3 4 5 6 7 8
A
B
C
D
8
7654321
D
C
B
A
9 TRADE ROAD
MALAGA 6062
WESTERN AUSTRALIA
PHONE (61-8) 92482755 FAX (61-8)
92482756
D9
D8
ETH
ETH
C12
C16
R3
C21
ETH
D6
D7
C17
ETH
C19
ETH
R9
1K5
R8
3K3
TR1
2SC3583
ETH
R6
ETH
C20
1n
L10
ETHETHETH
C4
1nF
R7
2K2
R13
R15
180R
L3
390n
D5
C5C23
ETH
ETHETH
C13
100nF
C14
10nF
R5
L6
390n
L7
ETH
C3
1nF
R1
270R
R2
270R
3
2 1
4
IC1
MAR-6SM
C6
1nF
L1
390nH
C1
1nF
R4
C2
1nF
L2
390nH
3
2 1
4
IC2
MAR-6SM
ETH
C22
47nF
C7
1nF
C10
D1
L5
L4
ETH ETH
C8
L11
D2
ETH
D4
ETH
C9
D3
C18
1n
R10
2K2
ETH
C11
L8
L9
ETH
R16
10R
R12
10R
R11
10R
R14
10R
ETH
ETH
ETH
ETH
ETH
ETH
ETH
C15
1nF
ETH
20Mhz
L7
D9
D8,
SW BW
NOTES
VCO COMPONENT VALUES
FREQ BANDBAND CR1
DATE REVISION TITLE
DRAWING No SHEET
OF
REV
PCB
DWGS
BY DATE
DESIGNED
DRAWN
CHECKED
APPROVED
APP
1 1
GJ
GJ
(C) Copyright
SPECTRA
ENGINEERING
A
CS052-1
NOMINAL BAND
1090MhzT 850-870Mhz
R3 R6 C5 C8 C9 C10 C11
CERAMIC RESONATOR
+7.4V SWITCHED
ETH
TO PRE-SCALER
RF OUT
SKU-1
SKT-6
SKU-2
SKU-3
SKT-1
SKT-4
VCO CONT
SKT-5
C12 C16 C17 C19 C23 L10 D5C21R4
L4,
L5
L8,
L9
D1,
D2
D3,
D4
D6,
D7
560R 100R 100R 1p 1p5 1p 4p7 3p3 1p 390nH 120nH 220nH BB131 BB131 N.F.
W 917-950Mhz 33Mhz
1240MHz 560R 100R 68R 1p 1p1p2 1p 3p3 2p7 180nH 120nH 220nH BB131 BB149 N.F.
N.F.
N.F.
N.F.
N.F.
N.F.
N.F.
N.F.
N.F.
N.F. N.F. N.F.
N.F.N.F.N.F.
N.F.
N.F.
N.F.
N.F.
L11
805-825Mhz
746-764Mhz
R
R2
20Mhz
18Mhz
1060Mhz
940Mhz N.F.N.F.
560R
N.F.
100R
N.F.
100R
N.F.
1p
N.F.
1p8
N.F.
1p8
N.F.
3p3
N.F.
3p3
N.F.
1p
BB131
390nH
BB131
120nH
220nH
220nH
120nH
BB131
390nH
BB131
1p
N.F.
3p3
N.F.
3p3
N.F.
1p8
N.F.
1p8
N.F.
1p
N.F.
100R
N.F.
100R
N.F.
560R
N.F. N.F.
MX800 TX VCO
CCT DIAGRAM V3, BAND
I TO X (270 - 960MHz)
Q 485-520Mhz 35Mhz N.F. 560R 220R 150R 2p2 3p3 3p3 3p3 3p3 3p9 N.F. 6p8 6p8 N.F. 1p 390nH 390nH 390nH 390nH BB133 BB133 N.F. N.F. BB131 New 10mm Coil 1.5T
P/P2 450-490Mhz 40Mhz 560R 220R 150R 2p2 3p3 3p3 3p9 3p9 3p9 N.F. 6p8 6p8 N.F. 1p 390nH 390nH 390nH 390nH BB133 BB133 N.F. N.F. BB131 New 10mm Coil 1.5TN.F.
O/O2 425-470Mhz 45Mhz 560R 220R 150R 2p2 4p7 4p73p93p9 3p9 N.F. 6p8 6p8 N.F. 1p 390nH 390nH 390nH 390nH BB133 BB133 N.F. N.F. BB131 New 10mm Coil 1.5TN.F.
560R 220R 150R 2p2 3p9 3p93p33p3 3p3 N.F. 6p8 6p8 N.F. 1p 390nH 390nH 390nH 390nH BB149 BB149 N.F. N.F. BB131 New 10mm Coil 2.5TN.F.N2 400-435Mhz 35Mhz
560R 220R 150R 2p2N.F.M 370-400Mhz 30Mhz 3p9 3p93p33p3 3p3 N.F. 6p8 6p8 N.F. 1p 390nH 390nH 390nH 390nH BB133 BB133 N.F. N.F. BB131 New 10mm Coil 2.5T
560R 220R 150R 2p2N.F.L3 350-385Mhz 35Mhz 4p7 4p73p33p3 3p9 N.F. 6p8 6p8 N.F. 1p 390nH 390nH 390nH 390nH BB133 BB133 N.F. N.F. BB131 New 10mm Coil 2.5T
R5 R13
82R
220R
220R
220R
220R
220R
220R
220R
220R
220R
N.F.
N.F.
N.F.
N.F.
N.F.
N.F.
2K2
2K2
2K2
2K2


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