Add uFL for VHF LO

1 files changed, 41 insertions, 43 deletions

diff --git a/kicad/baseband.sch b/kicad/baseband.sch
index 8c9a7ac..15826a7 100644
--- a/kicad/baseband.sch
+++ b/kicad/baseband.sch
@@ -233,8 +233,6 @@ Text Notes 1150 700  0    50   ~ 0
 HF Freq = \nLO1 - 4.9152MHz
 Wire Wire Line
 	3050 1900 2850 1900
-Wire Wire Line
-	2850 1900 2850 2850
 $Comp
 L Device:C_Small C306
 U 1 1 5E348FC2
@@ -1824,8 +1822,8 @@ Wire Wire Line
 	1850 1500 1800 1500
 Wire Wire Line
 	600  1550 600  1500
-Text Notes 1200 2250 0    50   ~ 0
-3rd order Elliptic Bandpass\n26MHz - 29.6MHz cutoff\n0.3dB ripple, -40dB stopband\nE12 values
+Text Notes 950  2600 0    50   ~ 0
+3rd order Elliptic Bandpass\n26MHz - 29.6MHz cutoff\n0.3dB ripple, -40dB stopband\nE12 values\n\n28 to 32.4 MHz, use same inductors, but\n1nF, 100pF, 150pF, 1nF
 $Comp
 L Connector_Generic:Conn_01x03 J301
 U 1 1 5E6B38C3
@@ -2343,7 +2341,7 @@ Wire Wire Line
 Wire Wire Line
 	7700 6100 8150 6100
 Text Notes 1700 7500 0    47   ~ 0
-Handle CW like the uBitx, in the 2nd mixer:\n The BFO as disabled\n The first oscillator is moved to the actual transmit frequency\n A DC bias is fed to the first mixer to upset the balance and allow the first oscillator to leak to the RF power chain.\n The CW sidetone is generated from the Arduino and injected into the audio amplifier\n
+Handle CW like the uBitx, in the 2nd mixer:\n The BFO as disabled\n The first oscillator is moved to the actual transmit frequency\n A DC bias is fed to the first mixer to upset the balance and allow the first oscillator to leak to the RF power chain.\n The CW sidetone is generated from the microcontroller and injected into the audio amplifier\n
 $Comp
 L Device:C_Small C338
 U 1 1 5E55C918
@@ -2363,68 +2361,65 @@ Wire Wire Line
 	7650 3850 7800 3850
 Text Notes 7500 4000 0    50   ~ 0
 200mVpp
-Text HLabel 950  2850 0    50   Input ~ 0
+Text HLabel 950  3400 0    50   Input ~ 0
 CW_KEYn
 $Comp
 L Device:R R301
 U 1 1 5E5F41C8
-P 1100 2850
-F 0 "R301" V 893 2850 50  0000 C CNN
-F 1 "2.2k" V 984 2850 50  0000 C CNN
-F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 1030 2850 50  0001 C CNN
-F 3 "~" H 1100 2850 50  0001 C CNN
-F 4 "0" H 1100 2850 50  0001 C CNN "Need_order"
-	1    1100 2850
+P 1100 3400
+F 0 "R301" V 893 3400 50  0000 C CNN
+F 1 "2.2k" V 984 3400 50  0000 C CNN
+F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 1030 3400 50  0001 C CNN
+F 3 "~" H 1100 3400 50  0001 C CNN
+F 4 "0" H 1100 3400 50  0001 C CNN "Need_order"
+	1    1100 3400
 	0    1    1    0   
 $EndComp
 $Comp
 L Device:R R302
 U 1 1 5E5F4CCC
-P 1400 2850
-F 0 "R302" V 1193 2850 50  0000 C CNN
-F 1 "1k" V 1284 2850 50  0000 C CNN
-F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 1330 2850 50  0001 C CNN
-F 3 "~" H 1400 2850 50  0001 C CNN
-F 4 "0" H 1400 2850 50  0001 C CNN "Need_order"
-	1    1400 2850
+P 1400 3400
+F 0 "R302" V 1193 3400 50  0000 C CNN
+F 1 "1k" V 1284 3400 50  0000 C CNN
+F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 1330 3400 50  0001 C CNN
+F 3 "~" H 1400 3400 50  0001 C CNN
+F 4 "0" H 1400 3400 50  0001 C CNN "Need_order"
+	1    1400 3400
 	0    1    1    0   
 $EndComp
 $Comp
 L Device:C_Small C302
 U 1 1 5E5F51BC
-P 1250 3000
-F 0 "C302" H 1158 2954 50  0000 R CNN
-F 1 "0.1uF" H 1158 3045 50  0000 R CNN
-F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 1250 3000 50  0001 C CNN
-F 3 "~" H 1250 3000 50  0001 C CNN
-F 4 "GRM188R71H104KA93D" H 1250 3000 50  0001 C CNN "MPN"
-F 5 "0" H 1250 3000 50  0001 C CNN "Need_order"
-	1    1250 3000
+P 1250 3550
+F 0 "C302" H 1158 3504 50  0000 R CNN
+F 1 "0.1uF" H 1158 3595 50  0000 R CNN
+F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 1250 3550 50  0001 C CNN
+F 3 "~" H 1250 3550 50  0001 C CNN
+F 4 "GRM188R71H104KA93D" H 1250 3550 50  0001 C CNN "MPN"
+F 5 "0" H 1250 3550 50  0001 C CNN "Need_order"
+	1    1250 3550
 	-1   0    0    1   
 $EndComp
 Wire Wire Line
-	1250 2900 1250 2850
-Connection ~ 1250 2850
+	1250 3450 1250 3400
+Connection ~ 1250 3400
 $Comp
 L power:GNDA #PWR0302
 U 1 1 5E620099
-P 1250 3100
-F 0 "#PWR0302" H 1250 2850 50  0001 C CNN
-F 1 "GNDA" H 1255 2927 50  0000 C CNN
-F 2 "" H 1250 3100 50  0001 C CNN
-F 3 "" H 1250 3100 50  0001 C CNN
-	1    1250 3100
+P 1250 3650
+F 0 "#PWR0302" H 1250 3400 50  0001 C CNN
+F 1 "GNDA" H 1255 3477 50  0000 C CNN
+F 2 "" H 1250 3650 50  0001 C CNN
+F 3 "" H 1250 3650 50  0001 C CNN
+	1    1250 3650
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
 	2950 3200 2950 3100
-Text Notes 2400 2850 2    39   ~ 0
+Text Notes 2400 3400 2    39   ~ 0
 DC bias to upset mixer\nbalance, to get LO leakage
 Wire Wire Line
-	1550 2850 2850 2850
-Connection ~ 2850 2850
-Wire Wire Line
-	2850 2850 2850 3950
+	1550 3400 2850 3400
 $Comp
 L Device:R_POT RV302
 U 1 1 5E6EE7AD
@@ -3138,8 +3133,6 @@ Wire Wire Line
 	6050 5800 6950 5800
 Wire Wire Line
 	6050 5800 6050 6500
-Text Notes 6550 -250 0    79   ~ 16
-TODO\ncap in series with MIC?\nwhy cap on RV301 2-3 ?\n
 Text GLabel 7550 4250 2    50   Input ~ 0
 +8VRX
 Text GLabel 6850 3750 2    50   Input ~ 0
@@ -3160,4 +3153,9 @@ Text GLabel 9150 600  0    50   Input ~ 0
 Wire Wire Line
 	9150 600  9200 600 
 Connection ~ 9200 600 
+Wire Wire Line
+	2850 1900 2850 3400
+Connection ~ 2850 3400
+Wire Wire Line
+	2850 3400 2850 3950
 $EndSCHEMATC