Schematics

1 2 3 4
A
B
C
D
4321
D
C
B
A
R2
100K
R1
10K
Q2
J3Y
NPN
Q1
945
NPN
L1
0805-2.2UH
L2
0805-2.2UH
L3
0410-8.2UH
C4
151
C1
104
C2
47P
C3
47P
C5
151
ANT
LR BF
C6
151
18 27 36 45
U1 TX2
+3V
1 2
Y1
49.860MHz
ΤΣ−589Τ−49Μ