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F2DC DC7 Transceiver : RX/TX and Filters switching. K1=/( /RCW. /TSSB). K2= (RCW. /TSSB)+ /TSSB. Receive : TSSB= 0. SSB : RCW= 0. CW Filter. SSB Filter.
31KB taille 1 téléchargements 245 vues
U3A U 4B RCW

1 3

4

2

6

K2

5 7 4 L S 08 74LS08

U2A TSSB

1

2 U 5C 7 4 L S 04

U 1B

9 8

3

4

K1

10 U1C 74LS08

5

74LS04

6 74LS04

B C5456A K1

R1

Q2 K2

R2

BC546A

Q3

BC546A

4.7k

B C546A Q2 R3

4.7k

4.7k

+12V

R4

4.7k

Q1 D1

1 N 4148

D2

1 N 4148 1 N 4148 D3

C2

1 N 4148

D4

C1

0 .1uF

0 .1uF

J3 B a l. Mod.

CW Filter

J1 A L C Att J4 A D 603 K2 MR62-12SR K1

SSB Filter

K3 MR62-12SR K4 MR62-12SR

MR62-12SR

J2 P o s t M ix Amp

Size A4

D o c u m e n t N u m b er

D a t e:

Monday, March 29, 2004

R ev

F 2 D C D C 7 T r a n s c e i v e r : R X / T X and Filters switching 1

1