Closed Marek128b closed 1 month ago
NanoVNA
Start: 1MHz Stop: 20MHz
CH1 LOGMAG 10dB
config in # 3
note: 5mm Diameter
note: 12mm Diameter
used 1nF instead of 820pF
software: NanoVNA Saver v0.6.4
settings:
S21 trough:
Markers:
marker 1 and 2: -6,5dB to -14dB = delta 7,5dB
Soldering header for switchable capacitors:
C1/C3 = 1nF C2 = 22pF
L1/L3 = 5turn 5mm L2 = 15turn 12mm
Band: 20m only
BW: 2,82 MHz
ins. Loss: 6,2dB
S21 curve:
markers:
VNA Settings on NanoVNA saver v0.6.4:
config in NanoVNA Saver v0.6.4:
markers:
S21 graph:
try nr. 1
tested 8 turns for 0.28uH tested 24 turns for 2.8uH
C1/C3 = 470pF C2 = 47pF
ins. Loss = 22.3dB F_low = 4.19MHz F_middle = 6.45MHz F_max = 9.70MHz
BW = 5.51MHz