VNA parameters used ?:?
- Frequency center 100 MHz
- SPAN zero mode?
?
TP20 (VCO):
RF signal is at 39.100 MHz, -1.3 dBm instead of 39.840 on your board for frequency >16 MHz seems KO ?
RF signal is at 39.280 MHz, -1.3 dBm ?for frequency <16 MHz?
?
TP16 (VCXO):?
RF signal is at 40.000 MHz, - 5 dBm. Seems OK
TP6:
No signal at 160 KHz but a square signal at 909 Khz. Look KO ?
?
TP14 (LO2)
RF signal at 10.000 MHz, -8 dBm. Look KO ?
?
VCO TUNE TP (with frequency start 15 MHz, stop 16 MHz):
Signal is flat and stay at +21V ?Look KO ?
Same result on VCXO TUNE TP (flat signal)
?
MattSNE