diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ae323a4
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+*.bak
+*.kicad_pcb-bak
+_autosave-*
+*.swp
+*.dxf~
diff --git a/ark-lna-cache.lib b/ark-lna-cache.lib
new file mode 100644
index 0000000..4571ef9
--- /dev/null
+++ b/ark-lna-cache.lib
@@ -0,0 +1,191 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# +5V
+#
+DEF +5V #PWR 0 40 Y Y 1 F P
+F0 "#PWR" 0 90 20 H I C CNN
+F1 "+5V" 0 90 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+X +5V 1 0 0 0 U 20 20 0 0 W N
+C 0 50 20 0 1 0 N
+P 4 0 1 0  0 0  0 30  0 30  0 30 N
+ENDDRAW
+ENDDEF
+#
+# C
+#
+DEF C C 0 10 N Y 1 F N
+F0 "C" 0 100 40 H V L CNN
+F1 "C" 6 -85 40 H V L CNN
+F2 "" 38 -150 30 H V C CNN
+F3 "" 0 0 60 H V C CNN
+$FPLIST
+ SM*
+ C?
+ C1-1
+$ENDFPLIST
+DRAW
+P 2 0 1 20  -80 -30  80 -30 N
+P 2 0 1 20  -80 30  80 30 N
+X ~ 1 0 200 170 D 40 40 1 1 P
+X ~ 2 0 -200 170 U 40 40 1 1 P
+ENDDRAW
+ENDDEF
+#
+# CONN_1
+#
+DEF ~CONN_1 P 0 30 N N 1 F N
+F0 "P" 80 0 40 H V L CNN
+F1 "CONN_1" 0 55 30 H I C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+C 0 0 31 0 1 0 N
+P 2 0 1 0  -30 0  -50 0 N
+X 1 1 -150 0 100 R 60 60 1 1 P
+ENDDRAW
+ENDDEF
+#
+# CP1
+#
+DEF CP1 C 0 10 N N 1 F N
+F0 "C" 50 100 50 H V L CNN
+F1 "CP1" 50 -100 50 H V L CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+$FPLIST
+ CP*
+ SM*
+$ENDFPLIST
+DRAW
+T 0 -50 100 80 0 0 0 +  Normal 0 C C
+A 0 -200 180 563 1236 0 1 15 N 100 -50 -100 -50
+P 4 0 1 15  -100 50  100 50  50 50  50 50 N
+X ~ 1 0 200 150 D 40 40 1 1 P
+X ~ 2 0 -200 180 U 40 40 1 1 P
+ENDDRAW
+ENDDEF
+#
+# CTRIM
+#
+DEF CTRIM C 0 10 Y Y 1 F N
+F0 "C" 130 -80 50 H V C CNN
+F1 "CTRIM" 150 -160 50 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+P 2 0 1 12  -100 -30  100 -30 N
+P 2 0 1 12  -100 30  100 30 N
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+P 3 0 1 0  50 100  100 100  100 50 F
+X ~ 1 0 200 170 D 40 40 1 1 P
+X ~ 2 0 -200 170 U 40 40 1 1 P
+ENDDRAW
+ENDDEF
+#
+# GND
+#
+DEF ~GND #PWR 0 0 Y Y 1 F P
+F0 "#PWR" 0 0 30 H I C CNN
+F1 "GND" 0 -70 30 H I C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+P 4 0 1 0  -50 0  0 -50  50 0  -50 0 N
+X GND 1 0 0 0 U 30 30 1 1 W N
+ENDDRAW
+ENDDEF
+#
+# INDUCTOR
+#
+DEF INDUCTOR L 0 40 N N 1 F N
+F0 "L" -50 0 40 V V C CNN
+F1 "INDUCTOR" 100 0 40 V V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 0 -150 50 -889 889 0 1 0 N 1 -199 1 -100
+A 0 -49 51 -889 889 0 1 0 N 1 -99 1 2
+A 0 51 51 -889 889 0 1 0 N 1 1 1 102
+A 0 148 48 -889 889 0 1 0 N 1 101 1 196
+X 1 1 0 300 100 D 70 70 1 1 P
+X 2 2 0 -300 100 U 70 70 1 1 P
+ENDDRAW
+ENDDEF
+#
+# LM317S
+#
+DEF LM317S U 0 40 Y Y 1 F N
+F0 "U" -200 200 40 H V C CNN
+F1 "LM317S" 0 200 40 H V L CNN
+F2 "TO-263" 0 100 30 H V C CIN
+F3 "" 0 0 60 H V C CNN
+$FPLIST
+ TO*
+$ENDFPLIST
+DRAW
+S -250 150 250 -150 0 1 10 f
+X ADJ 1 0 -250 100 U 40 40 1 1 I
+X OUT 2 400 50 150 L 40 40 1 1 w
+X IN 3 -400 50 150 R 40 40 1 1 I
+ENDDRAW
+ENDDEF
+#
+# MAR-6+
+#
+DEF MAR-6+ U 0 50 Y Y 1 F N
+F0 "U" 200 250 40 H V C CNN
+F1 "MAR-6+" 200 200 40 H V C CNN
+F2 "VV105" -150 100 30 H V C CIN
+F3 "" 0 0 60 H V C CNN
+$FPLIST
+ TO*
+$ENDFPLIST
+DRAW
+P 4 0 1 10  -300 300  400 0  -300 -300  -300 300 f
+X RF_in 1 -450 0 150 R 40 40 1 1 I
+X GND 2 0 -350 175 U 40 40 1 1 W
+X RF_out 3 550 0 150 L 40 40 1 1 O
+X GND 4 0 350 175 D 40 40 1 1 W
+ENDDRAW
+ENDDEF
+#
+# R
+#
+DEF R R 0 0 N Y 1 F N
+F0 "R" 80 0 40 V V C CNN
+F1 "R" 7 1 40 V V C CNN
+F2 "" -70 0 30 V V C CNN
+F3 "" 0 0 30 H V C CNN
+$FPLIST
+ R?
+ SM0603
+ SM0805
+ R?-*
+ SM1206
+$ENDFPLIST
+DRAW
+S -40 150 40 -150 0 1 12 N
+X ~ 1 0 250 100 D 60 60 1 1 P
+X ~ 2 0 -250 100 U 60 60 1 1 P
+ENDDRAW
+ENDDEF
+#
+# VCC
+#
+DEF VCC #PWR 0 0 Y Y 1 F P
+F0 "#PWR" 0 100 30 H I C CNN
+F1 "VCC" 0 100 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+X VCC 1 0 0 0 U 20 20 0 0 W N
+C 0 50 20 0 1 0 N
+P 3 0 1 0  0 0  0 30  0 30 N
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/ark-lna.kicad_pcb b/ark-lna.kicad_pcb
new file mode 100644
index 0000000..02c8ecb
--- /dev/null
+++ b/ark-lna.kicad_pcb
@@ -0,0 +1 @@
+(kicad_pcb (version 4) (host kicad "dummy file") )
diff --git a/ark-lna.pro b/ark-lna.pro
new file mode 100644
index 0000000..2079362
--- /dev/null
+++ b/ark-lna.pro
@@ -0,0 +1,72 @@
+update=Mon 06 Jun 2016 11:47:56 PM CEST
+version=1
+last_client=kicad
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[general]
+version=1
+[eeschema]
+version=1
+LibDir=lib
+[eeschema/libraries]
+LibName1=power
+LibName2=device
+LibName3=transistors
+LibName4=conn
+LibName5=linear
+LibName6=regul
+LibName7=74xx
+LibName8=cmos4000
+LibName9=adc-dac
+LibName10=memory
+LibName11=xilinx
+LibName12=microcontrollers
+LibName13=dsp
+LibName14=microchip
+LibName15=analog_switches
+LibName16=motorola
+LibName17=texas
+LibName18=intel
+LibName19=audio
+LibName20=interface
+LibName21=digital-audio
+LibName22=philips
+LibName23=display
+LibName24=cypress
+LibName25=siliconi
+LibName26=opto
+LibName27=atmel
+LibName28=contrib
+LibName29=valves
+LibName30=lib/mar-6
+[schematic_editor]
+version=1
+PageLayoutDescrFile=
+PlotDirectoryName=plot/
+SubpartIdSeparator=0
+SubpartFirstId=65
+NetFmtName=
+SpiceForceRefPrefix=0
+SpiceUseNetNumbers=0
+LabSize=60
+ERC_TestSimilarLabels=1
diff --git a/ark-lna.sch b/ark-lna.sch
new file mode 100644
index 0000000..755d06f
--- /dev/null
+++ b/ark-lna.sch
@@ -0,0 +1,413 @@
+EESchema Schematic File Version 2
+LIBS:power
+LIBS:device
+LIBS:transistors
+LIBS:conn
+LIBS:linear
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:valves
+LIBS:mar-6
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
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+Date ""
+Rev ""
+Comp ""
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+$EndComp
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+$EndComp
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+$EndComp
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+F 3 "" H 8350 4550 60  0000 C CNN
+	1    8350 4550
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+$EndComp
+$Comp
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+F 3 "" H 7350 3100 60  0000 C CNN
+	1    7350 3100
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+MAR-6 needs 16mA at 3.5v\nV_R_bias = 5v - 3.5v = 1.5v\nR_bias = 1.5v / 16mA = 93.75Ohm 
+$Comp
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+F 1 "100pF" V 7646 4550 40  0000 C CNN
+F 2 "" H 7838 4400 30  0000 C CNN
+F 3 "" H 7800 4550 60  0000 C CNN
+	1    7800 4550
+	0    1    1    0   
+$EndComp
+Wire Wire Line
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+Text Notes 3350 3950 0    60   ~ 0
+LC series filter\nImpedance is minimal at  f_0 = 1 / (2pi * sqrt(L * C))\nMinimal f_0 using 10pf: 79.48 MHz\nMaximal f_0 using 3pf: 145.1 Mhz\n\nUse plastic screwdriver from scope probes to tune
+$Comp
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+F 2 "TO-263" H 4400 1811 30  0000 C CIN
+F 3 "" H 4400 1600 60  0000 C CNN
+	1    4400 1600
+	1    0    0    -1  
+$EndComp
+$Comp
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+	1    4400 2400
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+$EndComp
+$Comp
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+	1    3150 1300
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+$EndComp
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+	1    3400 2400
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+$EndSCHEMATC
diff --git a/lib/mar-6.dcm b/lib/mar-6.dcm
new file mode 100644
index 0000000..0b7387a
--- /dev/null
+++ b/lib/mar-6.dcm
@@ -0,0 +1,9 @@
+EESchema-DOCLIB  Version 2.0
+#
+$CMP MAR-6+
+D LM1875, 20W Audio Power Amplifier, TO220-5
+K LM1875 Amplifier 20W
+F http://www.national.com/ds/LM/LM1875.pdf
+$ENDCMP
+#
+#End Doc Library
diff --git a/lib/mar-6.lib b/lib/mar-6.lib
new file mode 100644
index 0000000..6f54702
--- /dev/null
+++ b/lib/mar-6.lib
@@ -0,0 +1,23 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# MAR-6+
+#
+DEF MAR-6+ U 0 50 Y Y 1 F N
+F0 "U" 200 250 40 H V C CNN
+F1 "MAR-6+" 200 200 40 H V C CNN
+F2 "VV105" -150 100 30 H V C CIN
+F3 "" 0 0 60 H V C CNN
+$FPLIST
+ TO*
+$ENDFPLIST
+DRAW
+P 4 0 1 10  -300 300  400 0  -300 -300  -300 300 f
+X RF_in 1 -450 0 150 R 40 40 1 1 I
+X GND 2 0 -350 175 U 40 40 1 1 W
+X RF_out 3 550 0 150 L 40 40 1 1 O
+X GND 4 0 350 175 D 40 40 1 1 W
+ENDDRAW
+ENDDEF
+#
+#End Library
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