diff options
Diffstat (limited to 'kicad-dart-70/baseband.kicad_sch')
| -rw-r--r-- | kicad-dart-70/baseband.kicad_sch | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/kicad-dart-70/baseband.kicad_sch b/kicad-dart-70/baseband.kicad_sch index 2f79cb5..6c39b4f 100644 --- a/kicad-dart-70/baseband.kicad_sch +++ b/kicad-dart-70/baseband.kicad_sch @@ -6,7 +6,7 @@ (title_block (title "DART-70 TRX") - (date "2024-01-12") + (date "2024-01-31") (rev "1") (company "HB9EGM") (comment 1 "A 4m Band SSB/CW Transceiver") @@ -5688,8 +5688,8 @@ (effects (font (size 1.27 1.27)) (justify left bottom)) (uuid 29dcba45-439b-4f41-aabb-51de21635866) ) - (text "In case the balance upsetting\nLO leakage trick doesn't work" - (at 71.12 72.39 0) + (text "The balance upsetting LO\nleakage trick doesn't work,\nBut injecting the sidetone into\nthe SSB chains sounds good, even\nthough there's a bit of 2nd\nharmonic getting through" + (at 69.85 80.01 0) (effects (font (size 0.9906 0.9906)) (justify left bottom)) (uuid 2d4ba971-ddd9-4f08-ae0a-4bc49faa5143) ) @@ -5750,8 +5750,8 @@ (effects (font (size 1.27 1.27)) (justify left bottom)) (uuid 9ed6d028-5d5c-4447-abad-f10882f4294a) ) - (text "Handle CW like the uBitx, in the 2nd mixer:\n The BFO as disabled\n LO1 is moved to the actual transmit frequency\n A DC bias is fed to the TXMIXOUT to upset the balance and allow LO1 to leak to the RF power chain.\n The CW sidetone is generated from the microcontroller and injected into the audio amplifier\n (On Picardy 2020, CW sidetone injection didn't work, used separate buzzer on STATUS LED instead)\n See CWINJECT header" - (at 184.15 280.67 0) + (text "First idea: Handle CW like the uBitx, in the 2nd mixer:\n The BFO as disabled\n LO1 is moved to the actual transmit frequency\n A DC bias is fed to the TXMIXOUT to upset the balance and allow LO1 to leak to the RF power chain.\n The CW sidetone is generated from the microcontroller and injected into the audio amplifier\n (On Picardy 2020, CW sidetone injection didn't work, but mixer biasing to leak the LO through worked.\n Also, used separate buzzer on STATUS LED instead)\n See CWINJECT header\n20240131: But the second mixer always leaked the LO through.\nSidetone sounded good, and is injected into SSB chain." + (at 231.14 31.75 0) (effects (font (size 1.1938 1.1938)) (justify left bottom)) (uuid 9fbabfd5-5316-4dcb-8d99-3c53b9c69880) ) @@ -7552,7 +7552,7 @@ (property "Reference" "C28" (at 36.2839 229.87 90) (effects (font (size 1.27 1.27))) ) - (property "Value" "DNF (1uF)" (at 36.2839 232.41 90) + (property "Value" "100nF" (at 36.2839 232.41 90) (effects (font (size 1.27 1.27))) ) (property "Footprint" "Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder" (at 36.83 236.22 0) @@ -7561,7 +7561,7 @@ (property "Datasheet" "~" (at 36.83 236.22 0) (effects (font (size 1.27 1.27)) hide) ) - (property "MPN" "08055C105JAT2A" (at 36.83 236.22 0) + (property "MPN" "" (at 36.83 236.22 0) (effects (font (size 1.27 1.27)) hide) ) (property "Need_order" "0" (at 36.83 236.22 0) @@ -8719,7 +8719,7 @@ (property "Reference" "C31" (at 45.72 230.5938 0) (effects (font (size 1.27 1.27)) (justify left)) ) - (property "Value" "1uF" (at 45.72 233.1338 0) + (property "Value" "100nF" (at 45.72 233.1338 0) (effects (font (size 1.27 1.27)) (justify left)) ) (property "Footprint" "Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder" (at 43.18 232.41 0) @@ -8728,7 +8728,7 @@ (property "Datasheet" "~" (at 43.18 232.41 0) (effects (font (size 1.27 1.27)) hide) ) - (property "MPN" "08055C105JAT2A" (at 43.18 232.41 0) + (property "MPN" "" (at 43.18 232.41 0) (effects (font (size 1.27 1.27)) hide) ) (property "Need_order" "0" (at 43.18 232.41 0) @@ -10016,10 +10016,10 @@ (symbol (lib_id "Device:R") (at 85.09 62.23 0) (mirror y) (unit 1) (in_bom yes) (on_board yes) (dnp no) (fields_autoplaced) (uuid 4854b1b1-f081-47ca-839e-49fd573ed63f) - (property "Reference" "R36" (at 87.63 60.9599 0) + (property "Reference" "R36" (at 87.63 60.96 0) (effects (font (size 1.27 1.27)) (justify right)) ) - (property "Value" "DNF" (at 87.63 63.4999 0) + (property "Value" "3.3k" (at 87.63 63.5 0) (effects (font (size 1.27 1.27)) (justify right)) ) (property "Footprint" "Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder" (at 86.868 62.23 90) |