Version 4
SHEET 1 1356 680
WIRE 208 -368 128 -368
WIRE 288 -368 208 -368
WIRE 208 -336 208 -368
WIRE 128 -320 128 -368
WIRE 288 -320 288 -368
WIRE 208 -224 208 -256
WIRE 128 -192 128 -240
WIRE 288 -192 288 -240
WIRE -496 -160 -496 -224
WIRE 880 -160 880 -224
WIRE -48 -144 -64 -144
WIRE 64 -144 32 -144
WIRE 384 -144 352 -144
WIRE 496 -144 464 -144
WIRE -64 -80 -64 -144
WIRE 48 -80 32 -80
WIRE 128 -80 128 -96
WIRE 128 -80 112 -80
WIRE 288 -80 288 -96
WIRE 304 -80 288 -80
WIRE 384 -80 368 -80
WIRE 496 -80 496 -144
WIRE 32 -48 32 -80
WIRE 384 -48 384 -80
WIRE -496 -32 -496 -80
WIRE -304 -32 -304 -128
WIRE -256 -32 -304 -32
WIRE -128 -32 -176 -32
WIRE 128 -32 128 -80
WIRE 128 -32 96 -32
WIRE 288 -32 288 -80
WIRE 352 -32 288 -32
WIRE 608 -32 560 -32
WIRE 736 -32 736 -144
WIRE 736 -32 688 -32
WIRE 880 -32 880 -80
WIRE 128 0 128 -32
WIRE 288 0 288 -32
WIRE -64 48 -64 16
WIRE 496 48 496 16
WIRE -320 160 -320 128
WIRE -176 160 -320 160
WIRE 16 160 -176 160
WIRE 128 160 128 80
WIRE 128 160 80 160
WIRE 160 160 160 112
WIRE 160 160 128 160
WIRE 256 160 256 112
WIRE 256 160 224 160
WIRE 288 160 288 80
WIRE 288 160 256 160
WIRE 560 160 288 160
WIRE 832 160 832 128
WIRE 832 160 624 160
WIRE 288 192 288 160
WIRE 832 192 832 160
WIRE -320 208 -320 160
WIRE -176 208 -176 160
WIRE 288 304 288 256
WIRE 832 320 832 272
WIRE 96 336 96 -32
WIRE 352 336 352 -32
WIRE -320 352 -320 288
WIRE -176 352 -176 288
WIRE -80 384 -80 304
WIRE -48 384 -80 384
WIRE 432 384 416 384
WIRE 576 384 576 336
WIRE 576 384 512 384
WIRE 96 448 96 432
WIRE 352 448 352 432
WIRE 0 0 0 0
FLAG 288 304 0
FLAG -64 48 0
FLAG 496 48 0
FLAG 208 -224 0
FLAG -304 -128 RX_ACT
FLAG 736 -144 TX_ACT
FLAG 832 320 0
FLAG -320 352 0
FLAG -176 352 0
FLAG 384 -48 0
FLAG 32 -48 0
FLAG -496 -32 0
FLAG 880 -32 0
FLAG -496 -224 RX_ACT
FLAG 880 -224 TX_ACT
FLAG 96 448 0
FLAG 352 448 0
FLAG 576 336 RX_ACT
FLAG -80 304 TX_ACT
FLAG 256 112 B
FLAG 160 112 A
FLAG 832 128 C
FLAG -320 128 D
SYMBOL diode 272 192 R0
WINDOW 3 -119 34 Left 2
SYMATTR InstName D1
SYMATTR Value RF05VA1S
SYMBOL diode 160 176 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D2
SYMATTR Value RF05VA1S
SYMBOL cap 80 144 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName CTX
SYMATTR Value 1n
SYMBOL cap 624 144 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName CRX
SYMATTR Value 100n
SYMBOL ind 272 -16 R0
SYMATTR InstName L1
SYMATTR Value 47µ
SYMBOL ind 112 -16 R0
SYMATTR InstName L2
SYMATTR Value 47µ
SYMBOL npn -128 -80 R0
SYMATTR InstName Q1
SYMATTR Value BC547B
SYMBOL npn 560 -80 M0
SYMATTR InstName Q2
SYMATTR Value BC547B
SYMBOL pnp 64 -96 M180
WINDOW 0 36 44 Left 2
WINDOW 3 -24 99 Left 2
SYMATTR InstName Q3
SYMATTR Value BC857B
SYMBOL pnp 352 -96 R180
WINDOW 0 31 47 Left 2
WINDOW 3 -32 99 Left 2
SYMATTR InstName Q4
SYMATTR Value BC857B
SYMBOL res 48 -160 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 47k
SYMBOL res 480 -160 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 47k
SYMBOL res 112 -336 R0
SYMATTR InstName R3
SYMATTR Value 120
SYMBOL res 272 -336 R0
SYMATTR InstName R4
SYMATTR Value 120
SYMBOL voltage 208 -352 R0
WINDOW 123 0 0 Left 2
WINDOW 39 -80 7 Left 2
SYMATTR SpiceLine Rser=0.1
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL res -160 -48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 4.7k
SYMBOL res 704 -48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 4.7k
SYMBOL res 816 176 R0
SYMATTR InstName RX
SYMATTR Value 50
SYMBOL Misc\\signal -320 192 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
WINDOW 3 -279 58 Left 2
SYMATTR InstName PA
SYMATTR Value SINE(0 10 10E5 1E-3)
SYMBOL res -192 192 R0
SYMATTR InstName ANT
SYMATTR Value 50
SYMBOL cap 112 -96 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 100n
SYMBOL cap 368 -96 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 100n
SYMBOL Misc\\signal -496 -176 R0
WINDOW 3 -171 178 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value PULSE(0 5 0 1E-6 1E-6 1E-3 2E-3 2)
SYMATTR InstName V2
SYMBOL Misc\\signal 880 -176 R0
WINDOW 3 -191 181 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value PULSE(0 5 1E-3 1E-6 1E-6 1E-3 2E-3 2)
SYMATTR InstName V3
SYMBOL npn 32 336 R0
SYMATTR InstName Q5
SYMATTR Value BC847B
SYMBOL npn 416 336 M0
SYMATTR InstName Q6
SYMATTR Value BC547B
SYMBOL res 528 368 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 4.7k
SYMBOL res 48 368 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 4.7k
TEXT -672 376 Left 2 !.tran 0 2E-3 0 1E-6